仿真模型范文

時間:2023-03-23 05:07:29

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仿真模型

篇1

    概念模型作為真實世界向仿真實現轉換的一個階段,在仿真系統的開發中發揮著極其重要的作用,但前提是其本身是正確且可信的。概念模型表達真實世界(jie)的(de)(de)(de)可信程度如(ru)何,是否建(jian)立了(le)正確的(de)(de)(de)模(mo)(mo)(mo)型(xing),這些(xie)問(wen)(wen)(wen)題(ti)往往需(xu)要通過(guo)概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)型(xing)驗(yan)(yan)證(zheng)(zheng)來實現。概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)型(xing)驗(yan)(yan)證(zheng)(zheng)是確保(bao)仿真可信度的(de)(de)(de)基礎。目(mu)(mu)前國(guo)內外對(dui)于(yu)概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)型(xing)驗(yan)(yan)證(zheng)(zheng)已(yi)有(you)一些(xie)研(yan)究(jiu)成果。美國(guo)國(guo)防部建(jian)模(mo)(mo)(mo)與仿真辦公室(DMSO)頒布了(le)VV&ARPG,用于(yu)指(zhi)導(dao)仿真系統的(de)(de)(de)校(xiao)核、驗(yan)(yan)證(zheng)(zheng)和確認(Verification,ValidationandAccreditation,VV&A)工(gong)作。許多(duo)仿真界(jie)的(de)(de)(de)專(zhuan)家如(ru)OsmanBalci、DaleK.Pace、RobertG.Sargent等也在論文中討論了(le)概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)型(xing)的(de)(de)(de)驗(yan)(yan)證(zheng)(zheng)問(wen)(wen)(wen)題(ti)[1-3]。從目(mu)(mu)前的(de)(de)(de)研(yan)究(jiu)情況來看,關于(yu)概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)型(xing)驗(yan)(yan)證(zheng)(zheng)的(de)(de)(de)層(ceng)次、內容和標準等問(wen)(wen)(wen)題(ti)討論得較少,許多(duo)學者都給出(chu)了(le)概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)型(xing)驗(yan)(yan)證(zheng)(zheng)的(de)(de)(de)方法(fa)(fa),但(dan)對(dui)于(yu)如(ru)何選(xuan)擇這些(xie)方法(fa)(fa)、如(ru)何將驗(yan)(yan)證(zheng)(zheng)方法(fa)(fa)與驗(yan)(yan)證(zheng)(zheng)的(de)(de)(de)內容相(xiang)關聯等問(wen)(wen)(wen)題(ti)研(yan)究(jiu)得較少。因此,本文將在綜述國(guo)內外概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)型(xing)驗(yan)(yan)證(zheng)(zheng)方法(fa)(fa)的(de)(de)(de)基礎上,重點探討概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)型(xing)驗(yan)(yan)證(zheng)(zheng)方法(fa)(fa)的(de)(de)(de)選(xuan)擇問(wen)(wen)(wen)題(ti)。

    2概(gai)念模型(xing)驗證(zheng)概(gai)述(shu)

    2.1概(gai)(gai)(gai)念(nian)(nian)(nian)(nian)模(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)驗(yan)證(zheng)(zheng)(zheng)(zheng)的(de)(de)(de)(de)(de)(de)(de)(de)定(ding)(ding)義和任務(wu)概(gai)(gai)(gai)念(nian)(nian)(nian)(nian)模(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)驗(yan)證(zheng)(zheng)(zheng)(zheng)(ConceptualModelValidation,CMV)是(shi)(shi)(shi)(shi)仿真系統(tong)VV&A過(guo)程(cheng)中的(de)(de)(de)(de)(de)(de)(de)(de)重(zhong)要階段和基本(ben)活(huo)動,其(qi)目(mu)的(de)(de)(de)(de)(de)(de)(de)(de)和結(jie)果(guo)是(shi)(shi)(shi)(shi)為了(le)得到優質的(de)(de)(de)(de)(de)(de)(de)(de)概(gai)(gai)(gai)念(nian)(nian)(nian)(nian)模(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)。概(gai)(gai)(gai)念(nian)(nian)(nian)(nian)模(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)驗(yan)證(zheng)(zheng)(zheng)(zheng)試圖(tu)發(fa)現并糾正概(gai)(gai)(gai)念(nian)(nian)(nian)(nian)建(jian)模(mo)(mo)(mo)(mo)(mo)階段中出現的(de)(de)(de)(de)(de)(de)(de)(de)錯誤,確保問(wen)題(ti)域(yu)(yu)的(de)(de)(de)(de)(de)(de)(de)(de)特征和結(jie)果(guo)都全面而準(zhun)確地得到認(ren)可。在明確了(le)概(gai)(gai)(gai)念(nian)(nian)(nian)(nian)模(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)驗(yan)證(zheng)(zheng)(zheng)(zheng)的(de)(de)(de)(de)(de)(de)(de)(de)作用(yong)后,可以(yi)對其(qi)定(ding)(ding)義如下(xia)(xia):定(ding)(ding)義1:概(gai)(gai)(gai)念(nian)(nian)(nian)(nian)模(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)驗(yan)證(zheng)(zheng)(zheng)(zheng)是(shi)(shi)(shi)(shi)以(yi)概(gai)(gai)(gai)念(nian)(nian)(nian)(nian)模(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)為輸入,概(gai)(gai)(gai)念(nian)(nian)(nian)(nian)建(jian)模(mo)(mo)(mo)(mo)(mo)和驗(yan)證(zheng)(zheng)(zheng)(zheng)人員采用(yong)一(yi)(yi)定(ding)(ding)的(de)(de)(de)(de)(de)(de)(de)(de)驗(yan)證(zheng)(zheng)(zheng)(zheng)方法(fa)和驗(yan)證(zheng)(zheng)(zheng)(zheng)工具(ju)(ju),在領域(yu)(yu)專家的(de)(de)(de)(de)(de)(de)(de)(de)共同參與下(xia)(xia),通過(guo)一(yi)(yi)系列檢查、比較、驗(yan)證(zheng)(zheng)(zheng)(zheng)和修改等活(huo)動,最終(zhong)得到優質概(gai)(gai)(gai)念(nian)(nian)(nian)(nian)模(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)過(guo)程(cheng)。概(gai)(gai)(gai)念(nian)(nian)(nian)(nian)模(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)驗(yan)證(zheng)(zheng)(zheng)(zheng)的(de)(de)(de)(de)(de)(de)(de)(de)主要任務(wu)是(shi)(shi)(shi)(shi)根據特定(ding)(ding)的(de)(de)(de)(de)(de)(de)(de)(de)建(jian)模(mo)(mo)(mo)(mo)(mo)目(mu)的(de)(de)(de)(de)(de)(de)(de)(de)和目(mu)標(biao),考(kao)察概(gai)(gai)(gai)念(nian)(nian)(nian)(nian)模(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)在其(qi)作用(yong)域(yu)(yu)內是(shi)(shi)(shi)(shi)否準(zhun)確地代表了(le)實際系統(tong),確定(ding)(ding)模(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)描述真實世(shi)界(jie)預(yu)定(ding)(ding)目(mu)的(de)(de)(de)(de)(de)(de)(de)(de)的(de)(de)(de)(de)(de)(de)(de)(de)程(cheng)度(du),也就(jiu)是(shi)(shi)(shi)(shi)說模(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)輸出在多大程(cheng)度(du)上與人們對真實世(shi)界(jie)相(xiang)關對象領域(yu)(yu)的(de)(de)(de)(de)(de)(de)(de)(de)理解一(yi)(yi)致(zhi)。概(gai)(gai)(gai)念(nian)(nian)(nian)(nian)模(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)驗(yan)證(zheng)(zheng)(zheng)(zheng)的(de)(de)(de)(de)(de)(de)(de)(de)具(ju)(ju)體任務(wu)是(shi)(shi)(shi)(shi)檢驗(yan)概(gai)(gai)(gai)念(nian)(nian)(nian)(nian)模(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)完備性(xing)、一(yi)(yi)致(zhi)性(xing)、正確性(xing)。完備性(xing)是(shi)(shi)(shi)(shi)指所(suo)(suo)構建(jian)的(de)(de)(de)(de)(de)(de)(de)(de)概(gai)(gai)(gai)念(nian)(nian)(nian)(nian)模(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)對系統(tong)完成(cheng)使命(ming)是(shi)(shi)(shi)(shi)否充分(fen);一(yi)(yi)致(zhi)性(xing)是(shi)(shi)(shi)(shi)指所(suo)(suo)構建(jian)的(de)(de)(de)(de)(de)(de)(de)(de)概(gai)(gai)(gai)念(nian)(nian)(nian)(nian)模(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)是(shi)(shi)(shi)(shi)否相(xiang)互一(yi)(yi)致(zhi)且(qie)不相(xiang)互矛盾;正確性(xing)是(shi)(shi)(shi)(shi)指所(suo)(suo)構建(jian)的(de)(de)(de)(de)(de)(de)(de)(de)概(gai)(gai)(gai)念(nian)(nian)(nian)(nian)模(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)是(shi)(shi)(shi)(shi)否保證(zheng)(zheng)(zheng)(zheng)正確完成(cheng)系統(tong)使命(ming)。

    2.2概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)驗(yan)(yan)(yan)證(zheng)(zheng)(zheng)(zheng)的(de)(de)(de)(de)(de)(de)(de)(de)層(ceng)(ceng)(ceng)次和(he)(he)(he)內容(rong)概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)驗(yan)(yan)(yan)證(zheng)(zheng)(zheng)(zheng)具有(you)一(yi)定的(de)(de)(de)(de)(de)(de)(de)(de)層(ceng)(ceng)(ceng)次性(xing)。羅愛民(min)博士在(zai)(zai)博士論(lun)文(wen)中基于認識論(lun)以(yi)及(ji)信息科學(xue)理(li)論(lun)指(zhi)(zhi)(zhi)(zhi)出,系(xi)(xi)(xi)統的(de)(de)(de)(de)(de)(de)(de)(de)體(ti)(ti)系(xi)(xi)(xi)結構所(suo)蘊含的(de)(de)(de)(de)(de)(de)(de)(de)信息包(bao)括三個層(ceng)(ceng)(ceng)次:語(yu)(yu)(yu)(yu)(yu)法(fa)(fa)(fa)(fa)信息、語(yu)(yu)(yu)(yu)(yu)義(yi)(yi)(yi)信息和(he)(he)(he)語(yu)(yu)(yu)(yu)(yu)用信息[4],以(yi)語(yu)(yu)(yu)(yu)(yu)法(fa)(fa)(fa)(fa)、語(yu)(yu)(yu)(yu)(yu)義(yi)(yi)(yi)和(he)(he)(he)語(yu)(yu)(yu)(yu)(yu)用這三個層(ceng)(ceng)(ceng)次來劃(hua)分(fen)(fen)體(ti)(ti)系(xi)(xi)(xi)結構分(fen)(fen)析與驗(yan)(yan)(yan)證(zheng)(zheng)(zheng)(zheng)。本文(wen)采(cai)納羅愛民(min)論(lun)文(wen)的(de)(de)(de)(de)(de)(de)(de)(de)分(fen)(fen)法(fa)(fa)(fa)(fa),將概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)驗(yan)(yan)(yan)證(zheng)(zheng)(zheng)(zheng)劃(hua)分(fen)(fen)為(wei)語(yu)(yu)(yu)(yu)(yu)法(fa)(fa)(fa)(fa)層(ceng)(ceng)(ceng)概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)驗(yan)(yan)(yan)證(zheng)(zheng)(zheng)(zheng)、語(yu)(yu)(yu)(yu)(yu)義(yi)(yi)(yi)層(ceng)(ceng)(ceng)概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)驗(yan)(yan)(yan)證(zheng)(zheng)(zheng)(zheng)和(he)(he)(he)語(yu)(yu)(yu)(yu)(yu)用層(ceng)(ceng)(ceng)概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)驗(yan)(yan)(yan)證(zheng)(zheng)(zheng)(zheng)三個層(ceng)(ceng)(ceng)次。下面針對每個層(ceng)(ceng)(ceng)次的(de)(de)(de)(de)(de)(de)(de)(de)特(te)點(dian),分(fen)(fen)析其具體(ti)(ti)的(de)(de)(de)(de)(de)(de)(de)(de)驗(yan)(yan)(yan)證(zheng)(zheng)(zheng)(zheng)內容(rong):1)語(yu)(yu)(yu)(yu)(yu)法(fa)(fa)(fa)(fa)層(ceng)(ceng)(ceng)概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)驗(yan)(yan)(yan)證(zheng)(zheng)(zheng)(zheng)是(shi)(shi)(shi)(shi)指(zhi)(zhi)(zhi)(zhi)從(cong)概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)描述(shu)(shu)樣式(shi)來考(kao)慮,只注重概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)在(zai)(zai)形式(shi)上的(de)(de)(de)(de)(de)(de)(de)(de)正確(que)與否(fou),而不關心概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)實質內容(rong)。根據概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)描述(shu)(shu)方法(fa)(fa)(fa)(fa)和(he)(he)(he)語(yu)(yu)(yu)(yu)(yu)言不同,語(yu)(yu)(yu)(yu)(yu)法(fa)(fa)(fa)(fa)層(ceng)(ceng)(ceng)驗(yan)(yan)(yan)證(zheng)(zheng)(zheng)(zheng)的(de)(de)(de)(de)(de)(de)(de)(de)內容(rong)和(he)(he)(he)重點(dian)也各(ge)不一(yi)樣[5]。2)語(yu)(yu)(yu)(yu)(yu)義(yi)(yi)(yi)層(ceng)(ceng)(ceng)概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)驗(yan)(yan)(yan)證(zheng)(zheng)(zheng)(zheng)是(shi)(shi)(shi)(shi)指(zhi)(zhi)(zhi)(zhi)檢查(cha)(cha)概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)是(shi)(shi)(shi)(shi)否(fou)客觀地反(fan)映(ying)了真實世界中的(de)(de)(de)(de)(de)(de)(de)(de)過程(cheng)、實體(ti)(ti)、交互(hu)等要(yao)(yao)素,在(zai)(zai)語(yu)(yu)(yu)(yu)(yu)義(yi)(yi)(yi)上是(shi)(shi)(shi)(shi)否(fou)有(you)沖突,是(shi)(shi)(shi)(shi)否(fou)符合(he)邏輯。它主要(yao)(yao)包(bao)括:語(yu)(yu)(yu)(yu)(yu)義(yi)(yi)(yi)的(de)(de)(de)(de)(de)(de)(de)(de)正確(que)性(xing)、語(yu)(yu)(yu)(yu)(yu)義(yi)(yi)(yi)的(de)(de)(de)(de)(de)(de)(de)(de)完(wan)整(zheng)性(xing)和(he)(he)(he)語(yu)(yu)(yu)(yu)(yu)義(yi)(yi)(yi)的(de)(de)(de)(de)(de)(de)(de)(de)一(yi)致(zhi)性(xing)。語(yu)(yu)(yu)(yu)(yu)義(yi)(yi)(yi)正確(que)性(xing)驗(yan)(yan)(yan)證(zheng)(zheng)(zheng)(zheng)是(shi)(shi)(shi)(shi)指(zhi)(zhi)(zhi)(zhi)在(zai)(zai)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)中的(de)(de)(de)(de)(de)(de)(de)(de)對于待(dai)(dai)開發系(xi)(xi)(xi)統的(de)(de)(de)(de)(de)(de)(de)(de)功(gong)能、行(xing)為(wei)、性(xing)能的(de)(de)(de)(de)(de)(de)(de)(de)表述(shu)(shu)必須與用戶對目標系(xi)(xi)(xi)統的(de)(de)(de)(de)(de)(de)(de)(de)期望相吻合(he),即分(fen)(fen)析模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)中所(suo)描述(shu)(shu)的(de)(de)(de)(de)(de)(de)(de)(de)每一(yi)項內容(rong)都代表了對于待(dai)(dai)開發系(xi)(xi)(xi)統的(de)(de)(de)(de)(de)(de)(de)(de)真實要(yao)(yao)求(qiu)(qiu)(qiu)(qiu);語(yu)(yu)(yu)(yu)(yu)義(yi)(yi)(yi)完(wan)整(zheng)性(xing)驗(yan)(yan)(yan)證(zheng)(zheng)(zheng)(zheng)是(shi)(shi)(shi)(shi)指(zhi)(zhi)(zhi)(zhi)檢查(cha)(cha)概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)所(suo)表達的(de)(de)(de)(de)(de)(de)(de)(de)內容(rong)是(shi)(shi)(shi)(shi)否(fou)完(wan)整(zheng),是(shi)(shi)(shi)(shi)否(fou)缺少相關的(de)(de)(de)(de)(de)(de)(de)(de)描述(shu)(shu)要(yao)(yao)素;語(yu)(yu)(yu)(yu)(yu)義(yi)(yi)(yi)一(yi)致(zhi)性(xing)驗(yan)(yan)(yan)證(zheng)(zheng)(zheng)(zheng)是(shi)(shi)(shi)(shi)指(zhi)(zhi)(zhi)(zhi)檢查(cha)(cha)描述(shu)(shu)系(xi)(xi)(xi)統各(ge)種特(te)征的(de)(de)(de)(de)(de)(de)(de)(de)概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)是(shi)(shi)(shi)(shi)否(fou)存在(zai)(zai)不一(yi)致(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)現象。3)語(yu)(yu)(yu)(yu)(yu)用層(ceng)(ceng)(ceng)概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)驗(yan)(yan)(yan)證(zheng)(zheng)(zheng)(zheng)是(shi)(shi)(shi)(shi)指(zhi)(zhi)(zhi)(zhi)在(zai)(zai)語(yu)(yu)(yu)(yu)(yu)法(fa)(fa)(fa)(fa)、語(yu)(yu)(yu)(yu)(yu)義(yi)(yi)(yi)層(ceng)(ceng)(ceng)次的(de)(de)(de)(de)(de)(de)(de)(de)信息都正確(que)、一(yi)致(zhi)、完(wan)備(bei)的(de)(de)(de)(de)(de)(de)(de)(de)前提下,檢查(cha)(cha)概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)所(suo)發揮的(de)(de)(de)(de)(de)(de)(de)(de)效用是(shi)(shi)(shi)(shi)否(fou)滿足需(xu)求(qiu)(qiu)(qiu)(qiu)以(yi)及(ji)滿足需(xu)求(qiu)(qiu)(qiu)(qiu)的(de)(de)(de)(de)(de)(de)(de)(de)程(cheng)度。由于概(gai)(gai)(gai)念(nian)(nian)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)處(chu)在(zai)(zai)仿真系(xi)(xi)(xi)統開發的(de)(de)(de)(de)(de)(de)(de)(de)初期階(jie)段,對功(gong)能的(de)(de)(de)(de)(de)(de)(de)(de)驗(yan)(yan)(yan)證(zheng)(zheng)(zheng)(zheng)很難進行(xing)。容(rong)易(yi)陷入兩(liang)難境況:一(yi)是(shi)(shi)(shi)(shi)陷入冗(rong)余(yu)和(he)(he)(he)瑣碎,一(yi)是(shi)(shi)(shi)(shi)遺漏重要(yao)(yao)需(xu)求(qiu)(qiu)(qiu)(qiu)。充分(fen)(fen)且必要(yao)(yao)的(de)(de)(de)(de)(de)(de)(de)(de)功(gong)能要(yao)(yao)求(qiu)(qiu)(qiu)(qiu)的(de)(de)(de)(de)(de)(de)(de)(de)界限很難把(ba)握,缺少嚴(yan)格的(de)(de)(de)(de)(de)(de)(de)(de)判(pan)斷標準。目前主要(yao)(yao)是(shi)(shi)(shi)(shi)人(ren)工審(shen)閱(yue),依靠專家(jia)的(de)(de)(de)(de)(de)(de)(de)(de)經驗(yan)(yan)(yan)來主觀判(pan)定功(gong)能需(xu)求(qiu)(qiu)(qiu)(qiu)的(de)(de)(de)(de)(de)(de)(de)(de)正確(que)性(xing)和(he)(he)(he)完(wan)備(bei)性(xing)[6]。

    3概(gai)念模(mo)型(xing)驗證(zheng)(zheng)方(fang)(fang)法(fa)(fa)(fa)的(de)現(xian)狀分析目前,國內外已(yi)經有(you)很多(duo)關于概(gai)念模(mo)型(xing)驗證(zheng)(zheng)方(fang)(fang)法(fa)(fa)(fa)的(de)研究成果。美國國防部(DoD)建模(mo)與仿(fang)真辦(ban)公室(DMSO)在VV&ARPG中總結(jie)了(le)76種驗證(zheng)(zheng)方(fang)(fang)法(fa)(fa)(fa)[7]。許(xu)多(duo)仿(fang)真界的(de)專(zhuan)家如OsmanBalci、DaleK.Pace、RobertG.Sargent等(deng)也在論(lun)文中討論(lun)了(le)概(gai)念模(mo)型(xing)的(de)驗證(zheng)(zheng)方(fang)(fang)法(fa)(fa)(fa)[1,2,3,8]。通過總結(jie),可以(yi)將概(gai)念模(mo)型(xing)的(de)驗證(zheng)(zheng)方(fang)(fang)法(fa)(fa)(fa)分為(wei)專(zhuan)家評審法(fa)(fa)(fa)、折衷分析法(fa)(fa)(fa)、形式化驗證(zheng)(zheng)方(fang)(fang)法(fa)(fa)(fa)和可執行驗證(zheng)(zheng)方(fang)(fang)法(fa)(fa)(fa)四類(lei)。

    3.1專(zhuan)家(jia)評(ping)審(shen)法(fa)(fa)專(zhuan)家(jia)評(ping)審(shen)法(fa)(fa)是(shi)目前廣泛使(shi)用的(de)(de)(de)(de)概(gai)念(nian)模(mo)型(xing)驗證(zheng)(zheng)方(fang)法(fa)(fa)。該(gai)方(fang)法(fa)(fa)實施的(de)(de)(de)(de)主(zhu)(zhu)要(yao)(yao)過(guo)程是(shi):組織(zhi)一(yi)(yi)(yi)個由(you)(you)領(ling)域專(zhuan)家(jia)組成的(de)(de)(de)(de)評(ping)審(shen)小組,專(zhuan)家(jia)依(yi)據(ju)自(zi)己的(de)(de)(de)(de)知識(shi)和經驗,采用閱讀的(de)(de)(de)(de)方(fang)法(fa)(fa)檢查概(gai)念(nian)模(mo)型(xing)的(de)(de)(de)(de)設計文檔(dang)。這種方(fang)法(fa)(fa)雖然比(bi)較常用,而且簡單易行,但(dan)它存在著以(yi)下三個主(zhu)(zhu)要(yao)(yao)問題:第一(yi)(yi)(yi),難以(yi)處理大型(xing)、復雜的(de)(de)(de)(de)概(gai)念(nian)模(mo)型(xing)文檔(dang)。對于大型(xing)的(de)(de)(de)(de)仿真系統(tong),其(qi)概(gai)念(nian)模(mo)型(xing)可能是(shi)一(yi)(yi)(yi)份多(duo)達(da)(da)幾(ji)百頁的(de)(de)(de)(de)文檔(dang)。面對這樣龐大的(de)(de)(de)(de)文檔(dang),由(you)(you)于精(jing)力問題,極少有人能夠認真地檢查每(mei)一(yi)(yi)(yi)部分、每(mei)一(yi)(yi)(yi)細節,從而使(shi)得概(gai)念(nian)模(mo)型(xing)驗證(zheng)(zheng)過(guo)程僅僅是(shi)一(yi)(yi)(yi)種形式,不能達(da)(da)到其(qi)原本(ben)目的(de)(de)(de)(de)。第二(er),這種方(fang)法(fa)(fa)的(de)(de)(de)(de)主(zhu)(zhu)觀性較強(qiang),往往由(you)(you)于專(zhuan)家(jia)的(de)(de)(de)(de)知識(shi)結(jie)(jie)構、經驗水平等(deng)因素影響,驗證(zheng)(zheng)結(jie)(jie)果(guo)存在一(yi)(yi)(yi)定(ding)偶然性。第三,驗證(zheng)(zheng)過(guo)程需要(yao)(yao)較長的(de)(de)(de)(de)時(shi)間(jian)(jian)。組織(zhi)多(duo)人參加(jia)的(de)(de)(de)(de)評(ping)審(shen)會議,由(you)(you)于受時(shi)間(jian)(jian)、地域等(deng)因素限(xian)制,往往比(bi)較困難。同時(shi),多(duo)個專(zhuan)家(jia)對于許(xu)多(duo)問題難以(yi)達(da)(da)成一(yi)(yi)(yi)致意(yi)見,這也(ye)在一(yi)(yi)(yi)定(ding)程度上(shang)延長了驗證(zheng)(zheng)的(de)(de)(de)(de)過(guo)程。

    3.2折衷(zhong)分(fen)析法折衷(zhong)分(fen)析法是由美國卡(ka)內(nei)基梅隆大(da)學軟件工(gong)程研究(jiu)所(suo)首(shou)先提出的(de)(de)(de),該方法可(ke)以用于(yu)對概念模(mo)型的(de)(de)(de)各(ge)種非(fei)功能(neng)性(xing)(xing)(xing)指標(如(ru)性(xing)(xing)(xing)能(neng)、可(ke)更改性(xing)(xing)(xing)、可(ke)靠(kao)性(xing)(xing)(xing)、安全性(xing)(xing)(xing)等,也(ye)稱為(wei)質量屬(shu)性(xing)(xing)(xing))進行(xing)折衷(zhong)分(fen)析。該方法的(de)(de)(de)優點是在系(xi)統各(ge)類相關(guan)(guan)角色的(de)(de)(de)參(can)與下(xia),確(que)定各(ge)類質量屬(shu)性(xing)(xing)(xing)的(de)(de)(de)一個折衷(zhong)方案,有利于(yu)模(mo)型設計在相關(guan)(guan)各(ge)方達成共識;但其缺點是建立(li)與實(shi)際系(xi)統吻合的(de)(de)(de)質量屬(shu)性(xing)(xing)(xing)模(mo)型非(fei)常(chang)困(kun)難(nan),但卻是得(de)出正確(que)評價結(jie)果的(de)(de)(de)關(guan)(guan)鍵,另外,該方法無法對模(mo)型的(de)(de)(de)行(xing)為(wei)特性(xing)(xing)(xing)進行(xing)驗證[9-10]。

    3.3形(xing)式(shi)化(hua)(hua)驗(yan)(yan)(yan)(yan)(yan)證(zheng)(zheng)(zheng)方(fang)法(fa)(fa)(fa)(fa)形(xing)式(shi)化(hua)(hua)驗(yan)(yan)(yan)(yan)(yan)證(zheng)(zheng)(zheng)方(fang)法(fa)(fa)(fa)(fa)是(shi)(shi)(shi)(shi)(shi)通過(guo)嚴(yan)(yan)格的(de)(de)(de)(de)(de)邏輯(ji)運算或推理(li)來(lai)發現(xian)概念(nian)模型(xing)的(de)(de)(de)(de)(de)問題,是(shi)(shi)(shi)(shi)(shi)最精(jing)確(que)(que)、最嚴(yan)(yan)格的(de)(de)(de)(de)(de)方(fang)法(fa)(fa)(fa)(fa)。對于采(cai)用(yong)嚴(yan)(yan)格的(de)(de)(de)(de)(de)數學定理(li)表達式(shi)描(miao)述(shu)的(de)(de)(de)(de)(de)概念(nian)模型(xing),一(yi)般采(cai)用(yong)這種方(fang)法(fa)(fa)(fa)(fa)。比較常(chang)見的(de)(de)(de)(de)(de)形(xing)式(shi)化(hua)(hua)驗(yan)(yan)(yan)(yan)(yan)證(zheng)(zheng)(zheng)方(fang)法(fa)(fa)(fa)(fa)有(you):基于Statecharts的(de)(de)(de)(de)(de)形(xing)式(shi)化(hua)(hua)驗(yan)(yan)(yan)(yan)(yan)證(zheng)(zheng)(zheng)方(fang)法(fa)(fa)(fa)(fa)[11]、模型(xing)檢測方(fang)法(fa)(fa)(fa)(fa)(ModelChecking)[12]、基于本(ben)體的(de)(de)(de)(de)(de)形(xing)式(shi)化(hua)(hua)驗(yan)(yan)(yan)(yan)(yan)證(zheng)(zheng)(zheng)方(fang)法(fa)(fa)(fa)(fa)[13]等(deng)。形(xing)式(shi)化(hua)(hua)驗(yan)(yan)(yan)(yan)(yan)證(zheng)(zheng)(zheng)方(fang)法(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)優點是(shi)(shi)(shi)(shi)(shi)具有(you)嚴(yan)(yan)格的(de)(de)(de)(de)(de)語(yu)義規則,驗(yan)(yan)(yan)(yan)(yan)證(zheng)(zheng)(zheng)過(guo)程嚴(yan)(yan)密(mi),不(bu)(bu)過(guo)也(ye)存(cun)在以(yi)下不(bu)(bu)足:一(yi)是(shi)(shi)(shi)(shi)(shi)因為(wei)研(yan)(yan)究比較初步,還只是(shi)(shi)(shi)(shi)(shi)側重于完(wan)備(bei)性(xing)(xing)、一(yi)致性(xing)(xing)等(deng)比較容易(yi)的(de)(de)(de)(de)(de)驗(yan)(yan)(yan)(yan)(yan)證(zheng)(zheng)(zheng)內容,但是(shi)(shi)(shi)(shi)(shi)對于邏輯(ji)性(xing)(xing)、合理(li)性(xing)(xing)等(deng)比較復雜的(de)(de)(de)(de)(de)驗(yan)(yan)(yan)(yan)(yan)證(zheng)(zheng)(zheng)則沒(mei)有(you)涉及;二是(shi)(shi)(shi)(shi)(shi)定義在核(he)心實體上的(de)(de)(de)(de)(de)驗(yan)(yan)(yan)(yan)(yan)證(zheng)(zheng)(zheng)規則很不(bu)(bu)全面(mian),而且依賴(lai)于體系結構(gou)的(de)(de)(de)(de)(de)形(xing)式(shi)化(hua)(hua)描(miao)述(shu),不(bu)(bu)具有(you)通用(yong)性(xing)(xing)。目(mu)前(qian)對于形(xing)式(shi)化(hua)(hua)驗(yan)(yan)(yan)(yan)(yan)證(zheng)(zheng)(zheng)方(fang)法(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)研(yan)(yan)究還比較少,研(yan)(yan)究深度也(ye)不(bu)(bu)夠,不(bu)(bu)過(guo)該方(fang)法(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)精(jing)確(que)(que)性(xing)(xing)和嚴(yan)(yan)密(mi)性(xing)(xing)等(deng)特點也(ye)決定了它將是(shi)(shi)(shi)(shi)(shi)以(yi)后(hou)概念(nian)模型(xing)驗(yan)(yan)(yan)(yan)(yan)證(zheng)(zheng)(zheng)方(fang)法(fa)(fa)(fa)(fa)研(yan)(yan)究的(de)(de)(de)(de)(de)主要發展方(fang)向。

    3.4可(ke)執(zhi)(zhi)行(xing)(xing)(xing)驗(yan)(yan)證(zheng)方(fang)(fang)(fang)法可(ke)執(zhi)(zhi)行(xing)(xing)(xing)驗(yan)(yan)證(zheng)方(fang)(fang)(fang)法是(shi)一(yi)種(zhong)(zhong)(zhong)(zhong)人(ren)機(ji)交(jiao)互(hu)的(de)(de)(de)(de)驗(yan)(yan)證(zheng)方(fang)(fang)(fang)法,模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)按(an)照過(guo)程邏輯(ji)進(jin)行(xing)(xing)(xing)“執(zhi)(zhi)行(xing)(xing)(xing)”,其(qi)(qi)結(jie)果(guo)(guo)正(zheng)確性(xing)(xing)(xing)依(yi)賴領(ling)域(yu)專家的(de)(de)(de)(de)判(pan)斷(duan)。該方(fang)(fang)(fang)法首先由喬治(zhi)?梅森大學系統(tong)體系結(jie)構(gou)(gou)實驗(yan)(yan)室提出(chu)(chu)(chu)的(de)(de)(de)(de),可(ke)以用于(yu)(yu)驗(yan)(yan)證(zheng)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)邏輯(ji)性(xing)(xing)(xing)、合(he)理性(xing)(xing)(xing)等動(dong)態(tai)(tai)特性(xing)(xing)(xing),即側(ce)重(zhong)于(yu)(yu)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)驗(yan)(yan)證(zheng)的(de)(de)(de)(de)語(yu)法和(he)(he)(he)語(yu)用層次。其(qi)(qi)基(ji)本(ben)思(si)(si)路(lu)是(shi)以概(gai)(gai)(gai)(gai)念(nian)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)為(wei)(wei)基(ji)礎(chu),轉(zhuan)(zhuan)(zhuan)換為(wei)(wei)某種(zhong)(zhong)(zhong)(zhong)可(ke)執(zhi)(zhi)行(xing)(xing)(xing)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)(如(ru)有(you)色Petri網(wang)(CPN)、增強型(xing)(xing)(xing)(xing)(xing)功能(neng)流框圖(tu)(tu)(tu)(tu)等),添加某些信(xin)(xin)息后(hou),運行(xing)(xing)(xing)該可(ke)執(zhi)(zhi)行(xing)(xing)(xing)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing),驗(yan)(yan)證(zheng)概(gai)(gai)(gai)(gai)念(nian)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)描(miao)述中(zhong)(zhong)(zhong)的(de)(de)(de)(de)動(dong)態(tai)(tai)行(xing)(xing)(xing)為(wei)(wei)是(shi)否(fou)按(an)預(yu)期(qi)的(de)(de)(de)(de)順序執(zhi)(zhi)行(xing)(xing)(xing),是(shi)否(fou)有(you)邏輯(ji)沖突,能(neng)否(fou)達到預(yu)期(qi)的(de)(de)(de)(de)效果(guo)(guo),另(ling)外,還(huan)可(ke)以通(tong)過(guo)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)運行(xing)(xing)(xing)收集數據(ju),對(dui)概(gai)(gai)(gai)(gai)念(nian)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)部分性(xing)(xing)(xing)能(neng)參數進(jin)行(xing)(xing)(xing)評(ping)價。目前關(guan)(guan)(guan)于(yu)(yu)可(ke)執(zhi)(zhi)行(xing)(xing)(xing)驗(yan)(yan)證(zheng)法主要有(you)三(san)(san)種(zhong)(zhong)(zhong)(zhong)思(si)(si)路(lu),分別從(cong)(cong)(cong)不同(tong)方(fang)(fang)(fang)面(mian)對(dui)概(gai)(gai)(gai)(gai)念(nian)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)動(dong)態(tai)(tai)行(xing)(xing)(xing)為(wei)(wei)進(jin)行(xing)(xing)(xing)驗(yan)(yan)證(zheng):思(si)(si)路(lu)一(yi):從(cong)(cong)(cong)概(gai)(gai)(gai)(gai)念(nian)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)結(jie)構(gou)(gou)化描(miao)述中(zhong)(zhong)(zhong),利(li)用活(huo)(huo)動(dong)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)、數據(ju)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)組(zu)合(he)構(gou)(gou)建CPN可(ke)執(zhi)(zhi)行(xing)(xing)(xing)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)[4,14]。其(qi)(qi)主要思(si)(si)想(xiang)是(shi)以IDEF0進(jin)行(xing)(xing)(xing)結(jie)構(gou)(gou)化描(miao)述,把每個(ge)(ge)活(huo)(huo)動(dong)變為(wei)(wei)Petri網(wang)的(de)(de)(de)(de)轉(zhuan)(zhuan)(zhuan)移,每個(ge)(ge)連接(jie)兩(liang)個(ge)(ge)活(huo)(huo)動(dong)的(de)(de)(de)(de)IDEF0箭頭用“弧(hu)線(xian)-位(wei)置(zhi)(zhi)(zhi)-弧(hu)線(xian)”來替換,信(xin)(xin)息用于(yu)(yu)規定令牌的(de)(de)(de)(de)顏色設(she)置(zhi)(zhi)(zhi),最后(hou)通(tong)過(guo)CPN模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)執(zhi)(zhi)行(xing)(xing)(xing)結(jie)果(guo)(guo)來判(pan)斷(duan)其(qi)(qi)是(shi)否(fou)符合(he)需(xu)求(qiu)。由于(yu)(yu)IDEF0是(shi)靜(jing)態(tai)(tai)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing),缺(que)少對(dui)輸入數據(ju)、輸出(chu)(chu)(chu)數據(ju)等時序關(guan)(guan)(guan)系的(de)(de)(de)(de)描(miao)述,因(yin)此,在生(sheng)成對(dui)象Petri網(wang)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)中(zhong)(zhong)(zhong),缺(que)少相關(guan)(guan)(guan)信(xin)(xin)息,需(xu)要人(ren)工(gong)干預(yu)的(de)(de)(de)(de)因(yin)素(su)較(jiao)(jiao)多(duo)。思(si)(si)路(lu)二(er):從(cong)(cong)(cong)基(ji)于(yu)(yu)UML的(de)(de)(de)(de)概(gai)(gai)(gai)(gai)念(nian)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)面(mian)向對(dui)象描(miao)述中(zhong)(zhong)(zhong),利(li)用UML的(de)(de)(de)(de)類(lei)(lei)圖(tu)(tu)(tu)(tu)、活(huo)(huo)動(dong)圖(tu)(tu)(tu)(tu)、協作(zuo)(zuo)圖(tu)(tu)(tu)(tu)的(de)(de)(de)(de)組(zu)合(he)構(gou)(gou)建CPN可(ke)執(zhi)(zhi)行(xing)(xing)(xing)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)。其(qi)(qi)主要思(si)(si)想(xiang)是(shi)首先將UML類(lei)(lei)圖(tu)(tu)(tu)(tu)中(zhong)(zhong)(zhong)的(de)(de)(de)(de)類(lei)(lei)轉(zhuan)(zhuan)(zhuan)化為(wei)(wei)兩(liang)種(zhong)(zhong)(zhong)(zhong)類(lei)(lei):一(yi)種(zhong)(zhong)(zhong)(zhong)是(shi)只有(you)屬(shu)性(xing)(xing)(xing)沒(mei)有(you)操(cao)(cao)(cao)作(zuo)(zuo)的(de)(de)(de)(de)“屬(shu)性(xing)(xing)(xing)類(lei)(lei)”,另(ling)一(yi)種(zhong)(zhong)(zhong)(zhong)是(shi)只有(you)操(cao)(cao)(cao)作(zuo)(zuo)沒(mei)有(you)屬(shu)性(xing)(xing)(xing)的(de)(de)(de)(de)“操(cao)(cao)(cao)作(zuo)(zuo)類(lei)(lei)”,如(ru)果(guo)(guo)一(yi)個(ge)(ge)類(lei)(lei)既有(you)屬(shu)性(xing)(xing)(xing)又(you)有(you)操(cao)(cao)(cao)作(zuo)(zuo),則要轉(zhuan)(zhuan)(zhuan)換成兩(liang)個(ge)(ge)類(lei)(lei);然(ran)后(hou)將關(guan)(guan)(guan)聯類(lei)(lei)置(zhi)(zhi)(zhi)換為(wei)(wei)位(wei)置(zhi)(zhi)(zhi),關(guan)(guan)(guan)聯類(lei)(lei)中(zhong)(zhong)(zhong)屬(shu)性(xing)(xing)(xing)設(she)置(zhi)(zhi)(zhi)為(wei)(wei)位(wei)置(zhi)(zhi)(zhi)中(zhong)(zhong)(zhong)令牌的(de)(de)(de)(de)顏色,又(you)將操(cao)(cao)(cao)作(zuo)(zuo)類(lei)(lei)置(zhi)(zhi)(zhi)換為(wei)(wei)轉(zhuan)(zhuan)(zhuan)移,如(ru)果(guo)(guo)類(lei)(lei)中(zhong)(zhong)(zhong)有(you)多(duo)個(ge)(ge)操(cao)(cao)(cao)作(zuo)(zuo),則可(ke)建立轉(zhuan)(zhuan)(zhuan)移的(de)(de)(de)(de)子轉(zhuan)(zhuan)(zhuan)移;再次是(shi)根據(ju)協作(zuo)(zuo)圖(tu)(tu)(tu)(tu)或活(huo)(huo)動(dong)圖(tu)(tu)(tu)(tu)確定弧(hu)線(xian)的(de)(de)(de)(de)方(fang)(fang)(fang)向,最后(hou)利(li)用規則模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)中(zhong)(zhong)(zhong)的(de)(de)(de)(de)規則產生(sheng)弧(hu)線(xian)標識、規則模(mo)(mo)(mo)(mo)(mo)(mo)(mo)塊。該方(fang)(fang)(fang)法相對(dui)于(yu)(yu)思(si)(si)路(lu)一(yi)的(de)(de)(de)(de)優(you)勢(shi)在于(yu)(yu):CPN模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)中(zhong)(zhong)(zhong)的(de)(de)(de)(de)位(wei)置(zhi)(zhi)(zhi)、轉(zhuan)(zhuan)(zhuan)移和(he)(he)(he)令牌的(de)(de)(de)(de)設(she)置(zhi)(zhi)(zhi)都來源(yuan)于(yu)(yu)類(lei)(lei)圖(tu)(tu)(tu)(tu),而(er)第一(yi)種(zhong)(zhong)(zhong)(zhong)思(si)(si)路(lu)則來源(yuan)于(yu)(yu)不同(tong)的(de)(de)(de)(de)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing),增加了模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)構(gou)(gou)造(zao)難度,但(dan)該思(si)(si)路(lu)的(de)(de)(de)(de)缺(que)點是(shi)UML的(de)(de)(de)(de)描(miao)述方(fang)(fang)(fang)法不如(ru)結(jie)構(gou)(gou)化的(de)(de)(de)(de)描(miao)述方(fang)(fang)(fang)法形象直觀(guan),而(er)且UML類(lei)(lei)圖(tu)(tu)(tu)(tu)和(he)(he)(he)IDEF0模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)類(lei)(lei)似,也(ye)是(shi)靜(jing)態(tai)(tai)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing),需(xu)要較(jiao)(jiao)多(duo)的(de)(de)(de)(de)人(ren)工(gong)干預(yu)。思(si)(si)路(lu)三(san)(san):利(li)用相關(guan)(guan)(guan)軟(ruan)件實現概(gai)(gai)(gai)(gai)念(nian)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)可(ke)執(zhi)(zhi)行(xing)(xing)(xing)驗(yan)(yan)證(zheng),例如(ru)Telelogic公(gong)司的(de)(de)(de)(de)TAUG2軟(ruan)件。這種(zhong)(zhong)(zhong)(zhong)思(si)(si)路(lu)提出(chu)(chu)(chu)了將不同(tong)作(zuo)(zuo)戰節點的(de)(de)(de)(de)狀態(tai)(tai)圖(tu)(tu)(tu)(tu)進(jin)行(xing)(xing)(xing)連接(jie),然(ran)后(hou)根據(ju)不同(tong)的(de)(de)(de)(de)想(xiang)定將其(qi)(qi)以時序圖(tu)(tu)(tu)(tu)的(de)(de)(de)(de)方(fang)(fang)(fang)式進(jin)行(xing)(xing)(xing)執(zhi)(zhi)行(xing)(xing)(xing),具有(you)一(yi)定的(de)(de)(de)(de)可(ke)操(cao)(cao)(cao)作(zuo)(zuo)性(xing)(xing)(xing)和(he)(he)(he)實用性(xing)(xing)(xing),但(dan)其(qi)(qi)主要問題是(shi)無法對(dui)概(gai)(gai)(gai)(gai)念(nian)模(mo)(mo)(mo)(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)行(xing)(xing)(xing)為(wei)(wei)特性(xing)(xing)(xing)進(jin)行(xing)(xing)(xing)完整的(de)(de)(de)(de)評(ping)價,且該方(fang)(fang)(fang)法只能(neng)以UML的(de)(de)(de)(de)描(miao)述為(wei)(wei)基(ji)礎(chu),不具有(you)通(tong)用性(xing)(xing)(xing)。

篇2

關鍵詞: 玫瑰線(xian); 軌跡(ji); 仿(fang)真實(shi)驗; Mathematica軟件

中圖分類號(hao):TP391 文獻標志碼:A 文章編號(hao):1006-8228(2013)04-01-03

Model of rose curve trajectory and simulation experiment

Wang Fugui1, Wang Jianwei2

(1. College of Arts and Sciences, Shanxi Agricultural University, Taigu, Shanxi 030801, China;

2. College of Information Science and Engineering, Shanxi Agricultural University)

Abstract: The model of rose curve trajectory is given in this paper in which it is proven theoretically. A simulation experiment has been done using mathematical software. Both the theory and experiment indicate that when , ρ=acosnθ can be achieved. The formation rule of the rose curve is revealed based on motion. Theoretical evidence for related mechanical drawing is provided.

Key words: rose curve; trajectory; simulation experiment; Mathematical softwares

0 引言

玫(mei)瑰(gui)(gui)(gui)線(xian)(xian)(xian)的(de)(de)極坐(zuo)標方程(cheng)為ρ(θ)=acosnθ,如(ru)(ru)ρ(θ)=acos3θ表(biao)示3葉玫(mei)瑰(gui)(gui)(gui)線(xian)(xian)(xian),ρ(θ)=acos2θ表(biao)示4葉玫(mei)瑰(gui)(gui)(gui)線(xian)(xian)(xian)等(deng)(deng)[1,2]。由(you)于玫(mei)瑰(gui)(gui)(gui)線(xian)(xian)(xian)的(de)(de)曲線(xian)(xian)(xian)美觀,所(suo)以使用(yong)玫(mei)瑰(gui)(gui)(gui)線(xian)(xian)(xian)可以設(she)計(ji)出許多非常漂亮(liang)的(de)(de)幾(ji)何圖案[3]。許多學者對玫(mei)瑰(gui)(gui)(gui)線(xian)(xian)(xian)的(de)(de)幾(ji)何特性作了研(yan)究(jiu)(jiu),熊作朝先生(sheng)研(yan)究(jiu)(jiu)了玫(mei)瑰(gui)(gui)(gui)線(xian)(xian)(xian)的(de)(de)周長[4],潘陸益先生(sheng)等(deng)(deng)研(yan)究(jiu)(jiu)了玫(mei)瑰(gui)(gui)(gui)線(xian)(xian)(xian)的(de)(de)花瓣數(shu)及周期性等(deng)(deng)[5,6],李(li)星秀先生(sheng)等(deng)(deng)研(yan)究(jiu)(jiu)了逐(zhu)點生(sheng)成算法[7]。玫(mei)瑰(gui)(gui)(gui)線(xian)(xian)(xian)有許多實際應用(yong),如(ru)(ru)掃描瞬時視場(chang)[8],安全底紋的(de)(de)設(she)計(ji)[9]等(deng)(deng)。本文(wen)建立了玫(mei)瑰(gui)(gui)(gui)線(xian)(xian)(xian)的(de)(de)軌(gui)跡(ji)模型,并(bing)使用(yong)Mahtematica程(cheng)序(xu)設(she)計(ji)語言(yan)編寫(xie)了玫(mei)瑰(gui)(gui)(gui)線(xian)(xian)(xian)軌(gui)跡(ji)仿真(zhen)程(cheng)序(xu)[10,11]。

1 軌跡模型

1.1 模型描述

如(ru)圖1所示,設動圓半徑為(wei),動圓圓心(xin)初始(shi)位(wei)置為(wei)A(,0),動圓上的動點(dian)Q的初始(shi)位(wei)置為(wei)B(a,0),動圓的圓心(xin)P繞著原點(dian)O(0,0)勻速(su)公轉,角(jiao)速(su)度為(wei)ω(ω>0時為(wei)逆時針(zhen)旋(xuan)轉,ω

1.2 模型證明

由于P點旋轉(zhuan)的(de)角(jiao)速(su)度為(wei)ω,Q點旋轉(zhuan)的(de)角(jiao)速(su)度為(wei)kω,故(gu)在t時刻(ke)時∠AOP=ωt,∠BPQ=kωt,如圖2所(suo)示。所(suo)以動點Q在t時刻(ke)的(de)直角(jiao)坐標為(wei):

t時刻Q點(dian)與原(yuan)點(dian)之間(jian)距離平方為(wei):

假設(she)t時刻Q點在極坐標系下的極角為(wei)θ(t),則

當t充分小(xiao)時,與均位于(yu)第1或第4象限,故。

取,從而有:

下面驗證(zheng)對于任意的時刻t時,⑷式均成立。現把(ba)⑷式轉換為直角坐標(biao)系(xi)下坐標(biao)。

由(you)⑸式與⑹式可知,Q運動軌跡的極坐標方程為(wei)

1.3 模型應用

從⑺式知(zhi),模型(xing)中的參數k取不同的值(zhi),將得(de)到不同的玫(mei)(mei)瑰線(xian)軌跡。令,得(de),故當(dang)模型(xing)中的參數時,即得(de)到模型(xing)中Q點的運動(dong)軌跡為玫(mei)(mei)瑰線(xian)ρ(θ)=acos(nθ)(n≠1)。

2 仿真實驗

2.1 仿真程序

我們在Mathematica7.0環境(jing)下編(bian)寫了(le)模型仿真函數roseLineTrajectory,函數roseLineTrajectory輸出動(dong)(dong)點Q的運動(dong)(dong)軌跡。源代(dai)碼如(ru)下:

roseLineTrajectory[a_, k_, Dynamic[t_]] :=

DynamicModule[{angleCalc, p, q, tt, g},

g[] := (p = RotationMatrix[t].{a/2, 0};

(*點(dian)P在t時刻位置*)

q=RotationMatrix[k t].{a/2, 0};

(*點Q在(zai)t時刻相對于P點的偏(pian)移(yi)量(liang)*)

Show[Graphics[{{Dashed, Circle[{0, 0}, a/2]

(*P點(dian)運(yun)動軌跡*)},

{Dotted, Circle[p, a/2]},

Circle[p, a/2, {Min[k t, 0], Max[k t, 0]}],

Circle[{0, 0}, a/2, {Min[0, t], Max[0, t]}],

PointSize[Medium],

Point[p],

Point[p+q],

Arrow[{{0, 0}, p}], Arrow[{p, p + q}]},

PlotRange->{{-a-0.1, a+0.1},{-a-0.1,a+0.1}},

Axes -> True,

AxesLabel -> {x, y}],

ParametricPlot[

RotationMatrix[u].{a/2, 0} +

RotationMatrix[k u].{a/2, 0}, {u, -10^-8, t},

PlotStyle -> Thick,

PerformanceGoal -> "Quality"]]);

LocatorPane[Dynamic[tt,

(angleCalc @@ Normalize /@ {#, tt}) &],

Dynamic[g[]], Appearance -> None],

Initialization :> (tt = {1, 0}; t = 0;

angleCalc[newp_, oldp_] := (t = t +

ArcCos[newp.oldp] Sign[Cross[newp].(newp-oldp)];

tt={Cos[t], Sin[t]}))

]

2.2 仿真程(cheng)序測(ce)試

要得到3葉玫瑰線軌(gui)跡,可取參數k=-2,故(gu)調(diao)用(yong)模(mo)型仿(fang)真函數如下:

roseLineTrajectory[1, -2, Dynamic[t]]

輸出仿真交(jiao)互界面如圖3所示。

使用鼠標在(zai)圖(tu)3中(zhong)拖動點P,可使點P繞原點旋轉,程序將動態(tai)地輸(shu)出動點Q所(suo)(suo)劃過的軌跡(ji),如圖(tu)4所(suo)(suo)示。

當P點(dian)旋轉一周以上時,得到Q點(dian)的(de)運動軌(gui)跡(ji)為一條封閉的(de)3葉玫瑰線ρ(θ)=cos(3θ),如圖5所(suo)示。

取參數時,輸入:

roseLineTrajectory[1, -4/3, Dynamic[t]]

可得到如(ru)圖6所(suo)示的(de)7葉玫瑰線。

3 結束語

本文建立了(le)玫(mei)(mei)瑰(gui)(gui)線(xian)的(de)(de)軌跡模(mo)(mo)型,對模(mo)(mo)型進行了(le)計算機(ji)仿真(zhen)實驗,通(tong)(tong)過實驗驗證(zheng)了(le)理論(lun)的(de)(de)正確性。通(tong)(tong)過調整模(mo)(mo)型中(zhong)參(can)數k的(de)(de)值,可(ke)以得(de)到不同(tong)的(de)(de)玫(mei)(mei)瑰(gui)(gui)線(xian)軌跡,故該模(mo)(mo)型可(ke)以應用于機(ji)械繪制任意玫(mei)(mei)瑰(gui)(gui)線(xian),可(ke)使玫(mei)(mei)瑰(gui)(gui)線(xian)的(de)(de)應用更加廣泛。

參考文獻:

[1] 同濟大學數(shu)學教(jiao)研室.高(gao)等數(shu)學上(shang)冊(第4版(ban))[M].高(gao)等教(jiao)育出版(ban)社,1996.

[2] 李億(yi)民.關于多葉(xie)玫瑰(gui)線的一個注記[J].山東(dong)理工大(da)學學報(自然(ran)科學版(ban)),2009.23(2):88-90

[3] 楊濤,王坤(kun)茜,徐人平(ping)等.函數圖形(xing)中(zhong)的玫瑰線(xian)在紡(fang)(fang)織中(zhong)的應用[J].毛紡(fang)(fang)科(ke)技,2008.10:40-43

[4] 熊作(zuo)朝.關于玫(mei)瑰線周長(chang)的一個恒等(deng)關系[J].思茅(mao)師范高等(deng)專(zhuan)科(ke)學(xue)校學(xue)報(bao),2011.27(3):13-14

[5] 潘(pan)陸益(yi).玫瑰線及其應用(yong)(yong)研究[J].計算機應用(yong)(yong)與軟件,2008.25(10):236-238

[6] 金義明,張三(san)元.廣義玫瑰線及其應用[J].計算(suan)機應用研究(jiu),2004.3:170-171

[7] 李星秀,康(kang)寶(bao)生(sheng).玫瑰線和普(pu)通旋輪線的逐點生(sheng)成算(suan)法[J].計(ji)算(suan)機(ji)工(gong)程(cheng)與設計(ji),2006.27(5):746-748

[8] 張磊,裘雪紅.一種新的(de)(de)確(que)定(ding)"玫(mei)瑰線"掃描中瞬時視場(chang)的(de)(de)方法[J].紅外技術,2003.25(1):44-47

[9] 亓文法,李(li)曉龍,楊斌等(deng).動(dong)擺線及其在安全底紋設(she)(she)計(ji)中的應用[J].計(ji)算機輔(fu)助設(she)(she)計(ji)與圖形學學報,2008.20(2):267-272

篇3

“俄羅斯現代級Ⅱ型(xing)導彈驅逐艦”模型(xing)的(de)構件(jian)均由塑(su)料注(zhu)塑(su)而成,所有零件(jian)都在注(zhu)塑(su)件(jian)模板(ban)上。盡管大多數零件(jian)需要(yao)涂膠(jiao)進行(xing)組裝(zhuang)(zhuang),但(dan)尚有一些零件(jian)是通過(guo)緊密(mi)配合(he)組裝(zhuang)(zhuang)的(de),如炮臺、甲(jia)板(ban)等可隨時拆卸轉動。在制作過(guo)程(cheng)中,用(yong)膠(jiao)粘(zhan)接(jie)小(xiao)(xiao)零件(jian)時,涂膠(jiao)要(yao)盡量(liang)少(shao),可用(yong)針、牙簽蘸取膠(jiao)水再涂在粘(zhan)接(jie)點上;粘(zhan)接(jie)微小(xiao)(xiao)零件(jian)時,可用(yong)鑷子夾著,并注(zhu)意手要(yao)穩、防止(zhi)夾取物(wu)崩(beng)掉。

單個零件的噴(pen)涂(tu)(圖(tu)1~圖(tu)7)應(ying)(ying)在粘(zhan)接(jie)(jie)(jie)之前(qian),遵循“先上色(se)(se)(se)后(hou)粘(zhan)接(jie)(jie)(jie)”原則。上色(se)(se)(se)時,可先為模板上色(se)(se)(se),待干(gan)后(hou)再將零件剪下來粘(zhan)接(jie)(jie)(jie);也可將零件剪下修飾后(hou),用(yong)鑷子夾(jia)住一個個上色(se)(se)(se);或把小(xiao)零件先膠粘(zhan)于相應(ying)(ying)位置再進(jin)行噴(pen)涂(tu),如果粘(zhan)接(jie)(jie)(jie)點(dian)上有漆則應(ying)(ying)先用(yong)刀刮(gua)掉(diao)。

塑料(liao)模型(xing)一般(ban)用(yong)(yong)塑料(liao)噴涂(tu)顏料(liao)噴涂(tu)上色,優點(dian)是(shi)噴涂(tu)效果好,缺點(dian)是(shi)需使用(yong)(yong)氣(qi)泵和噴筆(bi),成(cheng)本(ben)較高(gao)。初(chu)學者(zhe)可(ke)用(yong)(yong)罐噴漆進行噴涂(tu),雖然效果不很理想,但成(cheng)本(ben)低。

“俄(e)羅斯現(xian)代級Ⅱ型導彈驅逐艦”模型除了(le)船體的水下部分需要套色(se)噴(pen)涂,其余部分均為單一上色(se)。

噴漆(qi)(qi)上(shang)色(se)的(de)第一道工序,是(shi)用(yong)底漆(qi)(qi)噴一遍(田宮自噴漆(qi)(qi)B-505-1000漆(qi)(qi)號)。第一次噴涂既要薄還要均勻,這樣干得快,有利于第二次和第三(san)(san)次的(de)噴涂。通過三(san)(san)次噴涂,模型的(de)顏色(se)會均勻、光(guang)澤(ze)度好。

船體的(de)(de)水下部(bu)分需要(yao)(yao)套(tao)色噴(pen)(pen)(pen)涂(tu)(tu)(tu)(tu)。噴(pen)(pen)(pen)涂(tu)(tu)(tu)(tu)前先把不上色的(de)(de)部(bu)分用膠帶遮(zhe)住,注意膠帶邊緣(yuan)粘貼密實,不要(yao)(yao)留(liu)有縫隙和褶皺。為(wei)達(da)到最好的(de)(de)上色效果,噴(pen)(pen)(pen)涂(tu)(tu)(tu)(tu)的(de)(de)地(di)方可用刀或細(xi)砂紙先修整磨平,顏(yan)料則要(yao)(yao)少噴(pen)(pen)(pen)、勤噴(pen)(pen)(pen),防止(zhi)一次性噴(pen)(pen)(pen)漆(qi)過多留(liu)下流淌痕跡(ji),影響外(wai)觀質量(liang)。待(dai)顏(yan)料干后,把遮(zhe)擋膠帶取下。取下時(shi)切忌快(kuai)速(su)撕(si)拉,應沿(yan)著上色邊緣(yuan)輕輕將其(qi)向外(wai)翻轉,這(zhe)樣噴(pen)(pen)(pen)涂(tu)(tu)(tu)(tu)上的(de)(de)色皮就不容易被(bei)撕(si)掉了 。

對仿真模(mo)型來說(shuo),除了準確(que)的拼裝外,正(zheng)確(que)的涂裝同樣十分重(zhong)要,也是整個模(mo)型制作的關(guan)鍵(jian)步驟。噴(pen)涂上色時(shi)需要注意(yi)幾點(dian)。

第一點是噴(pen)涂(tu)時各(ge)種顏料的(de)粘(zhan)(zhan)稠度。模型上色(se)時,既(ji)要(yao)(yao)讓噴(pen)涂(tu)的(de)涂(tu)層薄而勻,又(you)不(bu)至影(ying)響(xiang)零部(bu)件的(de)精細程度,因此粘(zhan)(zhan)稠度要(yao)(yao)調配得適當。較(jiao)稠涂(tu)料噴(pen)出的(de)涂(tu)層十(shi)分粗糙,用高倍放大鏡看時表面都是細小(xiao)的(de)顆粒,影(ying)響(xiang)模型美(mei)觀(guan),此時可在顏料中加入適量稀釋劑。

第二點(dian)是噴(pen)(pen)槍(qiang)或噴(pen)(pen)筆(bi)與模(mo)型的(de)距離。如(ru)果太(tai)近(jin),會因(yin)漆量過(guo)多導(dao)致顏(yan)料下淌;如(ru)果太(tai)遠,則(ze)會造成(cheng)顏(yan)料的(de)浪費。

第三點是套色(se)噴涂(tu)(tu)(tu)時的上色(se)順序(xu)(xu)。若噴涂(tu)(tu)(tu)帶迷(mi)(mi)彩(cai)的艦船(chuan)模型(xing)(xing),遮(zhe)擋物非常關鍵(jian)。一般(ban)可選(xuan)擇低粘度的膠(jiao)帶紙,如電(dian)工(gong)用膠(jiao)布、不干膠(jiao)紙等,模型(xing)(xing)商店(dian)則有專(zhuan)門的遮(zhe)擋用紙出售。噴涂(tu)(tu)(tu)迷(mi)(mi)彩(cai)時要仔細研究噴涂(tu)(tu)(tu)顏色(se)的順序(xu)(xu),即(ji)先噴什么(me)顏色(se),后噴什么(me)顏色(se)。順序(xu)(xu)不合理會造成遮(zhe)擋困難和重復施工(gong)。

噴涂小零部件(jian)時可(ke)用鑷子夾(jia)住進行(xing)。相同顏色的零件(jian),最好(hao)粘在貼有雙面膠的木片或紙(zhi)板上(shang)一起噴涂。而(er)且,要注意粘牢零部件(jian),否則它(ta)們(men)容易被噴槍的高壓氣流吹(chui)走,造成(cheng)丟(diu)失。

小零部件的組裝

組裝(zhuang)小零(ling)部(bu)件(jian)(jian)時(shi),也(ye)可用鑷子(zi)(zi)進行(xing)。為(wei)了(le)不(bu)使(shi)模型零(ling)件(jian)(jian)漆(qi)層表(biao)(biao)面損(sun)壞,可在鑷子(zi)(zi)尖(jian)處用布膠(jiao)帶(dai)(俗(su)稱橡(xiang)皮膏)纏繞一(yi)下。裝(zhuang)配較大的(de)(de)(de)(de)零(ling)部(bu)件(jian)(jian)時(shi),則(ze)應(ying)戴布質細線(xian)手套,防(fang)止污染模型表(biao)(biao)面。萬一(yi)發現有(you)些零(ling)部(bu)件(jian)(jian)涂裝(zhuang)失敗,可用涂料(liao)的(de)(de)(de)(de)稀釋劑將涂層洗去,再重新(xin)噴涂。如(ru)果發現零(ling)件(jian)(jian)上有(you)細小漏漆(qi)的(de)(de)(de)(de)地方,可用毛筆蘸(zhan)取(qu)顏料(liao)補漆(qi)。在兩種漆(qi)層交界的(de)(de)(de)(de)部(bu)位(wei),如(ru)有(you)一(yi)種漆(qi)多余,則(ze)可用另一(yi)種顏色的(de)(de)(de)(de)漆(qi)遮擋,或用極細的(de)(de)(de)(de)水(shui)砂紙磨(mo)掉(diao)。

在模(mo)型(xing)(xing)套材的(de)裝配圖中,標(biao)有(you)模(mo)型(xing)(xing)各處顏(yan)色的(de)標(biao)號(hao)和要求(qiu)。同一(yi)品牌的(de)模(mo)型(xing)(xing)顏(yan)色標(biao)號(hao)可從該模(mo)型(xing)(xing)廠家(jia)出品的(de)模(mo)型(xing)(xing)樣本或手冊(ce)中查找(zhao)。如有(you)需要調配的(de)涂料顏(yan)色,應盡量(liang)達到說明書中的(de)要求(qiu)。

模型上的天線,可(ke)充分(fen)利用(yong)(yong)模型套材,如(ru)不同直徑的細(xi)(xi)棍、細(xi)(xi)絲,用(yong)(yong)“拉絲”方法(fa)(fa)獲(huo)得。具體做法(fa)(fa)是(shi):在(zai)模型塑(su)料框(kuang)架上取(qu)一小段(duan)塑(su)料棍,先用(yong)(yong)蠟燭或(huo)酒精燈微微加(jia)熱,然(ran)后(hou)(hou)用(yong)(yong)雙手將其輕(qing)輕(qing)拉長,一條粗細(xi)(xi)均勻的細(xi)(xi)絲就做成了。當然(ran)也可(ke)選用(yong)(yong)其他材料,如(ru)塑(su)料片、金屬(shu)片、金屬(shu)絲、金屬(shu)管等,通(tong)過粘制(zhi)或(huo)焊(han)(han)制(zhi)而成。艦艇模型上的雷達天線、欄(lan)桿等,可(ke)先用(yong)(yong)金屬(shu)絲焊(han)(han)制(zhi)(圖(tu)8),涂(tu)裝后(hou)(hou)再與主(zhu)體裝配。

模型船體的總體組裝

把模(mo)型(xing)船體和甲板上(shang)建筑的(de)每個零(ling)部(bu)件都粘(zhan)接完成(cheng)后,即要對其進(jin)行(xing)整體組(zu)裝(zhuang)。組(zu)裝(zhuang)前先把電源部(bu)分安裝(zhuang)完畢,打(da)開(kai)開(kai)關(guan)調(diao)試好。對整體進(jin)行(xing)組(zu)裝(zhuang)時,需(xu)關(guan)注模(mo)型(xing)的(de)美化裝(zhuang)飾(圖(tu)9),上(shang)甲板時應特別(bie)注意在(zai)組(zu)合邊緣處涂上(shang)硅膠,保證不漏水(shui)。至此,一條完整的(de)F4模(mo)型(xing)就完成(cheng)了,接下來便可開(kai)始航行(xing)訓練。

篇4

關鍵詞:后(hou)勤(qin)仿真;后(hou)勤(qin)保(bao)障行動(dong);組(zu)件化

 中圖分(fen)類號:TP319文(wen)獻標識碼:A文(wen)章編號:1672-7800(2013)001-0096-02

0引言

當前,后(hou)(hou)勤(qin)(qin)模擬已(yi)成為后(hou)(hou)勤(qin)(qin)訓(xun)練、后(hou)(hou)勤(qin)(qin)保障方案驗(yan)證、后(hou)(hou)勤(qin)(qin)裝(zhuang)備(bei)論證等必(bi)不可少的(de)手段。通過模擬,可以得到與(yu)現實系(xi)統全似或相似的(de)仿(fang)真(zhen)系(xi)統,利用仿(fang)真(zhen)系(xi)統的(de)可重復性和可調(diao)整(zheng)性來(lai)研究(jiu)有(you)關的(de)后(hou)(hou)勤(qin)(qin)問(wen)題值得關注。實踐證明,后(hou)(hou)勤(qin)(qin)仿(fang)真(zhen)模型作(zuo)(zuo)為后(hou)(hou)勤(qin)(qin)模擬仿(fang)真(zhen)系(xi)統的(de)核(he)心,其質量(liang)對(dui)模擬仿(fang)真(zhen)和訓(xun)練效果起(qi)著至關重要的(de)作(zuo)(zuo)用。

我軍后(hou)勤(qin)已經開(kai)發(fa)(fa)出(chu)了各(ge)種(zhong)(zhong)專(zhuan)(zhuan)業的(de)(de)(de)模擬(ni)系統(tong)(tong),積累了不(bu)同種(zhong)(zhong)類(lei)的(de)(de)(de)后(hou)勤(qin)專(zhuan)(zhuan)業模型,例如后(hou)勤(qin)指揮模擬(ni)系統(tong)(tong)、油料(liao)保(bao)障(zhang)模擬(ni)系統(tong)(tong)、衛勤(qin)保(bao)障(zhang)模擬(ni)系統(tong)(tong)等。這(zhe)些模擬(ni)仿真系統(tong)(tong)和(he)模型種(zhong)(zhong)類(lei)繁(fan)多、專(zhuan)(zhuan)業性(xing)強、結構復雜、涵(han)蓋面(mian)寬,為我軍后(hou)勤(qin)的(de)(de)(de)模擬(ni)仿真建設提供(gong)了有力的(de)(de)(de)支持。20世紀(ji)90年代(dai)后(hou),現代(dai)高(gao)新技術武器(qi)廣泛進入作(zuo)戰(zhan)(zhan)領域,使得戰(zhan)(zhan)爭(zheng)形(xing)態、作(zuo)戰(zhan)(zhan)環境發(fa)(fa)生了重大(da)變化,由此引發(fa)(fa)了作(zuo)戰(zhan)(zhan)樣(yang)式(shi)、作(zuo)戰(zhan)(zhan)方法和(he)后(hou)勤(qin)保(bao)障(zhang)的(de)(de)(de)革命性(xing)變化,這(zhe)一切向我軍的(de)(de)(de)軍事斗爭(zheng)準備后(hou)勤(qin)保(bao)障(zhang)問題研(yan)究和(he)后(hou)勤(qin)仿真模擬(ni)訓練,以及后(hou)勤(qin)保(bao)障(zhang)仿真模型的(de)(de)(de)研(yan)究工作(zuo)提出(chu)了嚴峻(jun)的(de)(de)(de)挑戰(zhan)(zhan)。

1后勤仿真模(mo)型體(ti)系(xi)結(jie)構

原后勤(qin)仿真(zhen)模(mo)型(xing)體(ti)系的特點(dian)是模(mo)型(xing)沒(mei)有(you)獨立性、與應用緊密結合、相關性強。新的后勤(qin)仿真(zhen)模(mo)型(xing)體(ti)系結構劃分為5個層(ceng)次(ci):粒(li)度層(ceng)、形(xing)式層(ceng)、功能層(ceng)、用途(tu)層(ceng)、表達層(ceng)。

(1)粒度層:元模型(xing)(xing)、實(shi)體(ti)模型(xing)(xing)、動作模型(xing)(xing)、任務(wu)模型(xing)(xing)、系統模型(xing)(xing)。

元模(mo)型(xing)(xing)(xing)是粒度最小的模(mo)型(xing)(xing)(xing),也稱(cheng)顆(ke)粒模(mo)型(xing)(xing)(xing)。分物元模(mo)型(xing)(xing)(xing)、動元模(mo)型(xing)(xing)(xing)和數(shu)(shu)元模(mo)型(xing)(xing)(xing)。物元模(mo)型(xing)(xing)(xing)有燃燒室、變(bian)速箱、管(guan)線(xian)等(deng)模(mo)型(xing)(xing)(xing);動元模(mo)型(xing)(xing)(xing)有氣動模(mo)型(xing)(xing)(xing)、散(san)布模(mo)型(xing)(xing)(xing)、探測模(mo)型(xing)(xing)(xing)、流模(mo)型(xing)(xing)(xing);數(shu)(shu)元模(mo)型(xing)(xing)(xing)有數(shu)(shu)學函數(shu)(shu)、基本方程式等(deng)。

實體模型是最小(xiao)的(de)受(shou)控后(hou)勤行動單(dan)元模型。如各類運輸工具、裝卸(xie)設備、手(shou)術臺、單(dan)兵等。

動作模(mo)型是(shi)最基本的戰術科目(mu)模(mo)型。如抽組、各類運輸保障(zhang)、加油(you)、裝載(zai)、卸(xie)載(zai)、手術等。

任務模型(xing)是(shi)完成預定(ding)的后勤保障行(xing)動模型(xing),如派出運(yun)輸分隊、前(qian)(qian)送物資、前(qian)(qian)接傷員等。

系統(tong)模(mo)(mo)型(xing)(xing)是復雜系統(tong)模(mo)(mo)型(xing)(xing),分(fen)為單專(zhuan)業(ye)(ye)模(mo)(mo)型(xing)(xing)和多專(zhuan)業(ye)(ye)綜(zong)合模(mo)(mo)型(xing)(xing)。單專(zhuan)業(ye)(ye)模(mo)(mo)型(xing)(xing)有后(hou)勤(qin)指(zhi)揮(hui)和后(hou)勤(qin)各專(zhuan)業(ye)(ye)勤(qin)務保障模(mo)(mo)型(xing)(xing)系統(tong),多專(zhuan)業(ye)(ye)綜(zong)合模(mo)(mo)型(xing)(xing)有聯合作戰(zhan)后(hou)勤(qin)綜(zong)合演練保障模(mo)(mo)型(xing)(xing)系統(tong)等。

(2)形式層:概(gai)念模(mo)型(xing)、數(shu)學模(mo)型(xing)、邏輯(ji)模(mo)型(xing)、程序執行模(mo)型(xing)。

概(gai)念(nian)模型:對(dui)客觀世界的第一次抽象,用文字方式定性描述。

數(shu)學模型(xing):對客觀(guan)世(shi)界的(de)第(di)二(er)次抽象,用數(shu)學符號(hao)方式定(ding)量描述。

邏輯模型(xing):對客(ke)觀世界的(de)第(di)二次抽象,用邏輯符(fu)號(hao)方式定量描述。

程序執行(xing)模型(xing):對客觀世界的再現,用視覺、聲覺、嗅(xiu)覺、味覺、觸覺等(deng)人(ren)類感(gan)官能感(gan)受的方式(shi)描(miao)述。

(3)表達(da)(描述(shu))層:實物模(mo)型、機電(dian)模(mo)型、外(wai)觀幾何(he)模(mo)型、數字解析模(mo)型。

實物(wu)模型:用按比例縮(suo)放方(fang)式對客觀(guan)事物(wu)再現的模型。

機(ji)電(dian)模型:用機(ji)械和電(dian)器設備對(dui)客(ke)觀事(shi)物再(zai)現的模型。

虛擬幾何模型:用三維動畫(hua)或虛擬現實方式對(dui)客(ke)觀事物(wu)再現的模型。

數(shu)字(zi)解析(xi)模(mo)(mo)型:用(yong)數(shu)學式和邏(luo)輯式方式對客觀事物(wu)描述的(de)模(mo)(mo)型。

(4)功能層(ceng):優化計(ji)算(suan)模(mo)型(xing)、判斷決(jue)策、行動仿真模(mo)型(xing)、效果評估模(mo)型(xing)。

計算模型(xing):用(yong)于(yu)戰(zhan)術或后勤勤務計算的(de)數(shu)學模型(xing)。

判斷決策(ce):用于后勤(qin)指揮決策(ce)計算的優化模型。

行動仿(fang)真模型(xing):用(yong)于后(hou)勤保障行動模擬的仿(fang)真模型(xing)。

效(xiao)果(guo)評(ping)估模型(xing):用于評(ping)估后勤訓練效(xiao)果(guo)或(huo)后勤保障效(xiao)果(guo)的計(ji)算(suan)模型(xing)。

(5)應用(yong)層:后勤(qin)指揮模擬(ni)訓練及后勤(qin)專業(ye)模擬(ni)訓練等。

2后勤仿真模型柔性(xing)構造(zao)技術

在柔性模型(xing)框架下,調用不同(tong)粒度的多個模型(xing),依據(ju)其相互(hu)間的依賴或控制關(guan)(guan)系(xi),根據(ju)軍事(shi)知識和規則建立邏輯關(guan)(guan)聯(lian),形成仿真(zhen)應用系(xi)統,最終實現仿真(zhen)應用。

模型的(de)(de)基(ji)本組(zu)成形式是:輸(shu)入(ru)口(kou)(kou)、輸(shu)出(chu)口(kou)(kou)、控制(zhi)(zhi)口(kou)(kou)、基(ji)礎環境和(he)模型本體。分別包括(kuo):輸(shu)入(ru)口(kou)(kou):輸(shu)入(ru)模型運(yun)行必需的(de)(de)初(chu)始數(shu)(shu)(shu)據(ju)或(huo)(huo)信號;基(ji)礎口(kou)(kou):提供模型運(yun)行所需的(de)(de)公(gong)共數(shu)(shu)(shu)據(ju);控制(zhi)(zhi)口(kou)(kou):輸(shu)入(ru)運(yun)行控制(zhi)(zhi)指(zhi)令或(huo)(huo)數(shu)(shu)(shu)據(ju);輸(shu)出(chu)口(kou)(kou):輸(shu)出(chu)結果數(shu)(shu)(shu)據(ju)或(huo)(huo)情(qing)況(kuang)報告(gao)。

模(mo)型(xing)一般(ban)由柔性框架和多個(ge)元模(mo)型(xing)及下級模(mo)型(xing)組(zu)件(jian),按(an)(an)照內在關系(xi)和運(yun)行(xing)規則組(zu)合構成。柔性框架依(yi)據任務,按(an)(an)照軍(jun)事(shi)規則和知(zhi)識,順(shun)序調度相關模(mo)型(xing)組(zu)件(jian),形成模(mo)型(xing)功能(neng)。

3基于組件化(hua)的后勤仿真模型構建

3.1構建(jian)組件化的后勤仿真模型基本思路(lu)

面向(xiang)對象(xiang)(xiang)技術(ObjectOriented)盡可(ke)能按照人(ren)類認識(shi)世界的方法(fa)和思(si)維(wei)(wei)方式(shi)來(lai)分析和解(jie)決(jue)問題,具(ju)有(you)對象(xiang)(xiang)封裝性(xing)和類的繼承性(xing),開發的軟件具(ju)可(ke)復用、易擴展、易維(wei)(wei)護、易集(ji)成等特性(xing)。

隨著軟(ruan)件(jian)(jian)(jian)科學的(de)進一步發展,要求軟(ruan)件(jian)(jian)(jian)能在更為廣闊的(de)環(huan)境(jing)中應用,面向對象的(de)思想已(yi)經難以(yi)適應這種分布式軟(ruan)件(jian)(jian)(jian)模型(xing),于(yu)(yu)是組件(jian)(jian)(jian)設計(ji)思想得到了(le)迅速的(de)發展。組件(jian)(jian)(jian)技術的(de)基(ji)本思想是:將(jiang)大(da)而復雜的(de)軟(ruan)件(jian)(jian)(jian)應用劃分為一系列功能獨立、可先行實現、易于(yu)(yu)理解、開發和調整(zheng)的(de)組件(jian)(jian)(jian)。

比較成熟的(de)組件技術規范有(you):OMG(ObjectManangementGroup,對(dui)象管理組織(zhi))頒布的(de)CORBA(公共(gong)對(dui)象請求構架)、微軟公司推(tui)出的(de)組件對(dui)象模型DCOM/COM、SUN的(de)JavaBeans。

構建組件(jian)(jian)化(hua)后(hou)勤仿真模型具(ju)有下列優點:①組件(jian)(jian)可(ke)以先行(xing)開(kai)發,提高(gao)模型的(de)(de)開(kai)發效率;②各個組件(jian)(jian)提供標(biao)準化(hua)接(jie)口,對(dui)模型的(de)(de)開(kai)發進行(xing)了(le)規(gui)范;③后(hou)勤各專業對(dui)組件(jian)(jian)模塊的(de)(de)開(kai)發實行(xing)分工負責,避免開(kai)發的(de)(de)不必要(yao)重復(fu),提高(gao)組件(jian)(jian)的(de)(de)可(ke)重用性(xing),降(jiang)低(di)開(kai)發成本。

3.2構(gou)建組件化后(hou)勤仿真模型的(de)步驟

構(gou)建組件(jian)化后勤仿真(zhen)模(mo)型分為下列3個階(jie)段:

(1)需求分析階段。通(tong)過需求分析確定系(xi)統的(de)總體(ti)目標(biao),并把系(xi)統劃分成一(yi)系(xi)列易(yi)于實現(xian)和維護的(de)模型組件(jian)。

(2)組(zu)件模型的(de)設(she)計與(yu)實現階段。主要建立模型,進行模型驗證、校核和(he)確認(VV&A),設(she)計和(he)定(ding)義(yi)模型組(zu)件的(de)接口。

(3)模型(xing)組(zu)件(jian)(jian)的(de)使用(yong)管理階段。主要是進行組(zu)件(jian)(jian)入庫,通過調(diao)用(yong)組(zu)件(jian)(jian)的(de)接口(kou)實現組(zu)件(jian)(jian)的(de)使用(yong)。

3.3構建(jian)基(ji)于(yu)組件化的(de)后勤保(bao)障(zhang)行(xing)動模型

通過吸收組件(jian)思(si)想,將模(mo)(mo)型(xing)(xing)系(xi)統劃分成一(yi)系(xi)列模(mo)(mo)型(xing)(xing)模(mo)(mo)塊;然后通過模(mo)(mo)型(xing)(xing)的實(shi)(shi)現工具OMDT和編程語言(yan),把模(mo)(mo)塊實(shi)(shi)現為標準(zhun)的組件(jian),并將各組件(jian)存入模(mo)(mo)型(xing)(xing)庫;再通過選擇組件(jian),調用組件(jian)的接口,以使(shi)用模(mo)(mo)型(xing)(xing)組件(jian)提(ti)供的全部(bu)或者部(bu)分功(gong)能,從(cong)而實(shi)(shi)現后勤模(mo)(mo)型(xing)(xing)系(xi)統的特定(ding)功(gong)能。

建立標準科學(xue)、規范(fan)合理和標準統一的各類(lei)后(hou)(hou)(hou)(hou)勤(qin)專業不(bu)同應用層次的仿真(zhen)模(mo)(mo)型庫,能夠全(quan)方位支(zhi)撐學(xue)院(yuan)(yuan)研究(jiu)性(xing)(xing)演(yan)習(xi)(xi)、示范(fan)性(xing)(xing)演(yan)習(xi)(xi)和檢驗(yan)性(xing)(xing)演(yan)習(xi)(xi)、想定作(zuo)(zuo)業、戰例研究(jiu)等(deng)(deng)實踐性(xing)(xing)教學(xue)方式,在學(xue)院(yuan)(yuan)綜合演(yan)習(xi)(xi)中(zhong),實現對后(hou)(hou)(hou)(hou)勤(qin)指揮(hui)活動和環境進行(xing)模(mo)(mo)擬仿真(zhen),模(mo)(mo)擬后(hou)(hou)(hou)(hou)勤(qin)所(suo)屬分隊(dui)執(zhi)行(xing)后(hou)(hou)(hou)(hou)勤(qin)保障任務(wu)(wu),輔助后(hou)(hou)(hou)(hou)勤(qin)各專業的勤(qin)務(wu)(wu)計算以及(ji)任務(wu)(wu)預計等(deng)(deng)功能,達成練謀(mou)略、練指揮(hui)的訓練目的。在軍隊(dui)院(yuan)(yuan)校(xiao)聯合演(yan)習(xi)(xi)中(zhong),實現與其它軍兵種(zhong)模(mo)(mo)型之間(jian)的數據交互,在聯訓中(zhong)體現后(hou)(hou)(hou)(hou)勤(qin)對作(zuo)(zuo)戰的制約作(zuo)(zuo)用。

參考文獻:

篇5

關(guan)鍵詞:沙盤仿(fang)真模型;建筑材料(liao)管理;節約(yue)成本

在(zai)城鎮化進程不斷加(jia)快的(de)(de)(de)背景中,建(jian)(jian)筑(zhu)工程的(de)(de)(de)數(shu)量(liang)發生了顯著增加(jia)。在(zai)這種情(qing)況下,建(jian)(jian)筑(zhu)材料管理工作(zuo)逐漸暴露出(chu)一些(xie)(xie)問(wen)題。對于建(jian)(jian)筑(zhu)企業而(er)言,這些(xie)(xie)問(wen)題的(de)(de)(de)存在(zai)不僅(jin)會增加(jia)采(cai)購(gou)建(jian)(jian)筑(zhu)材料的(de)(de)(de)成(cheng)本支(zhi)出(chu),還會對其經濟利(li)潤的(de)(de)(de)獲(huo)取產生干擾(rao)作(zuo)用(yong)。因此,應在(zai)充分(fen)意識到當前建(jian)(jian)筑(zhu)材料管理不足(zu)的(de)(de)(de)基礎(chu)上,引入新(xin)的(de)(de)(de)管理模(mo)式(shi)與方法(fa)。

1建筑材料管理現狀

由于受到管理方法不當、管理觀念(nian)不合理等因素的影響,當前我國(guo)的建(jian)(jian)(jian)筑(zhu)(zhu)材料(liao)管理工作中仍然存在(zai)一些(xie)問題(ti),如建(jian)(jian)(jian)筑(zhu)(zhu)材料(liao)浪費(fei)、建(jian)(jian)(jian)筑(zhu)(zhu)材料(liao)儲(chu)存環節出現質(zhi)量問題(ti)等。這(zhe)種狀(zhuang)況對建(jian)(jian)(jian)筑(zhu)(zhu)工程施(shi)工產生了一定的干擾作用,甚至(zhi)影響建(jian)(jian)(jian)筑(zhu)(zhu)企業(ye)的經濟效益。在(zai)這(zhe)種情況下,提升建(jian)(jian)(jian)筑(zhu)(zhu)材料(liao)管理質(zhi)量的重要性不言(yan)而喻。

2沙盤仿真(zhen)模型在(zai)材料管理中的應用

2.1采(cai)購(gou)(gou)(gou)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)方(fang)面(mian)。從成(cheng)本角度來(lai)講,建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)在(zai)(zai)整(zheng)(zheng)個建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)項(xiang)目(mu)(mu)成(cheng)本中(zhong)(zhong)(zhong)(zhong)所占的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)比(bi)重(zhong)約在(zai)(zai)40%左右。因(yin)此,對(dui)于建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)企業(ye)而(er)言(yan),建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)采(cai)購(gou)(gou)(gou)無疑是其主要支出項(xiang)目(mu)(mu)之(zhi)一(yi)。當(dang)(dang)(dang)建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)采(cai)購(gou)(gou)(gou)量(liang)遠遠超出工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)需(xu)(xu)求(qiu)或(huo)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)使(shi)(shi)(shi)用(yong)(yong)過(guo)(guo)(guo)程(cheng)(cheng)(cheng)中(zhong)(zhong)(zhong)(zhong)存(cun)(cun)(cun)(cun)(cun)在(zai)(zai)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)浪費(fei)等(deng)問(wen)題(ti)時(shi)(shi),將(jiang)(jiang)(jiang)引(yin)(yin)發資源浪費(fei)。為了(le)改善這種(zhong)(zhong)(zhong)狀況(kuang),可(ke)(ke)(ke)將(jiang)(jiang)(jiang)沙(sha)(sha)(sha)(sha)盤(pan)(pan)(pan)仿(fang)(fang)(fang)(fang)(fang)真(zhen)(zhen)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)引(yin)(yin)入(ru)(ru)(ru)建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)實(shi)際(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)作(zuo)(zuo)中(zhong)(zhong)(zhong)(zhong)。在(zai)(zai)制定建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)采(cai)購(gou)(gou)(gou)計(ji)(ji)(ji)劃前,根據(ju)當(dang)(dang)(dang)前建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)實(shi)際(ji)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)需(xu)(xu)求(qiu)及(ji)相(xiang)關信(xin)(xin)息(xi)(xi)(xi),建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)立(li)基于材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)沙(sha)(sha)(sha)(sha)盤(pan)(pan)(pan)仿(fang)(fang)(fang)(fang)(fang)真(zhen)(zhen)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)。確保(bao)沙(sha)(sha)(sha)(sha)盤(pan)(pan)(pan)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)與實(shi)際(ji)狀況(kuang)符合后,參照(zhao)沙(sha)(sha)(sha)(sha)盤(pan)(pan)(pan)仿(fang)(fang)(fang)(fang)(fang)真(zhen)(zhen)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)修正現有采(cai)購(gou)(gou)(gou)計(ji)(ji)(ji)劃中(zhong)(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)不(bu)(bu)足,提(ti)(ti)升(sheng)采(cai)購(gou)(gou)(gou)計(ji)(ji)(ji)劃與建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)需(xu)(xu)求(qiu)之(zhi)間(jian)(jian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)契合性水平(ping),以降低(di)采(cai)購(gou)(gou)(gou)環節(jie)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)資金投入(ru)(ru)(ru),保(bao)障(zhang)建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)企業(ye)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)利益不(bu)(bu)受損害。2.2儲(chu)(chu)(chu)(chu)(chu)(chu)存(cun)(cun)(cun)(cun)(cun)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)方(fang)面(mian)。結合我國傳(chuan)統(tong)建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)儲(chu)(chu)(chu)(chu)(chu)(chu)存(cun)(cun)(cun)(cun)(cun)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)作(zuo)(zuo)來(lai)看,由于受到管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)疏忽、管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)方(fang)法不(bu)(bu)當(dang)(dang)(dang)等(deng)因(yin)素的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)影響,部分建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)進(jin)(jin)(jin)入(ru)(ru)(ru)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)現場前,會產(chan)生(sheng)不(bu)(bu)同程(cheng)(cheng)(cheng)度的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)損壞(huai)及(ji)缺失問(wen)題(ti)。為了(le)改善這種(zhong)(zhong)(zhong)狀況(kuang),提(ti)(ti)升(sheng)儲(chu)(chu)(chu)(chu)(chu)(chu)存(cun)(cun)(cun)(cun)(cun)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)質量(liang),可(ke)(ke)(ke)將(jiang)(jiang)(jiang)沙(sha)(sha)(sha)(sha)盤(pan)(pan)(pan)仿(fang)(fang)(fang)(fang)(fang)真(zhen)(zhen)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)引(yin)(yin)入(ru)(ru)(ru)儲(chu)(chu)(chu)(chu)(chu)(chu)存(cun)(cun)(cun)(cun)(cun)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)數據(ju)信(xin)(xin)息(xi)(xi)(xi)錄(lu)(lu)入(ru)(ru)(ru)環節(jie)中(zhong)(zhong)(zhong)(zhong),將(jiang)(jiang)(jiang)傳(chuan)統(tong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)紙質記(ji)錄(lu)(lu)或(huo)信(xin)(xin)息(xi)(xi)(xi)化(hua)記(ji)錄(lu)(lu)模(mo)(mo)(mo)(mo)式(shi)轉(zhuan)化(hua)為雙重(zhong)記(ji)錄(lu)(lu)模(mo)(mo)(mo)(mo)式(shi):即在(zai)(zai)運(yun)用(yong)(yong)計(ji)(ji)(ji)算機錄(lu)(lu)入(ru)(ru)(ru)相(xiang)關建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)數據(ju)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)同時(shi)(shi),構建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)儲(chu)(chu)(chu)(chu)(chu)(chu)存(cun)(cun)(cun)(cun)(cun)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)信(xin)(xin)息(xi)(xi)(xi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)沙(sha)(sha)(sha)(sha)盤(pan)(pan)(pan)仿(fang)(fang)(fang)(fang)(fang)真(zhen)(zhen)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing),為儲(chu)(chu)(chu)(chu)(chu)(chu)存(cun)(cun)(cun)(cun)(cun)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)人(ren)員(yuan)提(ti)(ti)供更加(jia)直觀、立(li)體的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)信(xin)(xin)息(xi)(xi)(xi)成(cheng)果。在(zai)(zai)日常工(gong)(gong)(gong)(gong)(gong)(gong)(gong)作(zuo)(zuo)中(zhong)(zhong)(zhong)(zhong),管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)人(ren)員(yuan)可(ke)(ke)(ke)通過(guo)(guo)(guo)沙(sha)(sha)(sha)(sha)盤(pan)(pan)(pan)仿(fang)(fang)(fang)(fang)(fang)真(zhen)(zhen)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)迅(xun)速(su)判斷(duan)各(ge)種(zhong)(zhong)(zhong)建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)剩(sheng)余量(liang),抑制儲(chu)(chu)(chu)(chu)(chu)(chu)存(cun)(cun)(cun)(cun)(cun)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)中(zhong)(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)偷(tou)竊材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)或(huo)不(bu)(bu)恰當(dang)(dang)(dang)儲(chu)(chu)(chu)(chu)(chu)(chu)存(cun)(cun)(cun)(cun)(cun)導致材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)損壞(huai)問(wen)題(ti)。例如,在(zai)(zai)建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)立(li)沙(sha)(sha)(sha)(sha)盤(pan)(pan)(pan)仿(fang)(fang)(fang)(fang)(fang)真(zhen)(zhen)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)時(shi)(shi),可(ke)(ke)(ke)根據(ju)各(ge)類建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)水泥、工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)塑料(liao)(liao)(liao)(liao)(liao)、木材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)等(deng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)儲(chu)(chu)(chu)(chu)(chu)(chu)存(cun)(cun)(cun)(cun)(cun)條(tiao)(tiao)件要求(qiu),將(jiang)(jiang)(jiang)其在(zai)(zai)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)中(zhong)(zhong)(zhong)(zhong)表示(shi)出來(lai)。在(zai)(zai)儲(chu)(chu)(chu)(chu)(chu)(chu)存(cun)(cun)(cun)(cun)(cun)條(tiao)(tiao)件檢查(cha)過(guo)(guo)(guo)程(cheng)(cheng)(cheng)中(zhong)(zhong)(zhong)(zhong),管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)人(ren)員(yuan)可(ke)(ke)(ke)迅(xun)速(su)完(wan)成(cheng)沙(sha)(sha)(sha)(sha)盤(pan)(pan)(pan)仿(fang)(fang)(fang)(fang)(fang)真(zhen)(zhen)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)與建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)儲(chu)(chu)(chu)(chu)(chu)(chu)存(cun)(cun)(cun)(cun)(cun)條(tiao)(tiao)件要求(qiu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)對(dui)比(bi),進(jin)(jin)(jin)而(er)檢查(cha)出不(bu)(bu)恰當(dang)(dang)(dang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)儲(chu)(chu)(chu)(chu)(chu)(chu)存(cun)(cun)(cun)(cun)(cun)條(tiao)(tiao)件問(wen)題(ti),保(bao)障(zhang)各(ge)類建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)儲(chu)(chu)(chu)(chu)(chu)(chu)存(cun)(cun)(cun)(cun)(cun)質量(liang)。2.3使(shi)(shi)(shi)用(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)方(fang)面(mian)。傳(chuan)統(tong)建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)使(shi)(shi)(shi)用(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)要求(qiu)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)人(ren)員(yuan)按照(zhao)限額(e)領料(liao)(liao)(liao)(liao)(liao)制度,細化(hua)完(wan)成(cheng)每一(yi)種(zhong)(zhong)(zhong)建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)領取及(ji)使(shi)(shi)(shi)用(yong)(yong)記(ji)錄(lu)(lu)。這種(zhong)(zhong)(zhong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)模(mo)(mo)(mo)(mo)式(shi)耗(hao)時(shi)(shi)較長(chang),且(qie)(qie)很(hen)容易產(chan)生(sheng)漏(lou)洞及(ji)問(wen)題(ti)。在(zai)(zai)建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)中(zhong)(zhong)(zhong)(zhong)引(yin)(yin)入(ru)(ru)(ru)沙(sha)(sha)(sha)(sha)盤(pan)(pan)(pan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)后,可(ke)(ke)(ke)將(jiang)(jiang)(jiang)傳(chuan)統(tong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)使(shi)(shi)(shi)用(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)調整(zheng)(zheng)為模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)動態化(hua)變更管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)。當(dang)(dang)(dang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)單位(wei)(wei)提(ti)(ti)出某種(zhong)(zhong)(zhong)或(huo)多種(zhong)(zhong)(zhong)建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)使(shi)(shi)(shi)用(yong)(yong)申請后,管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)人(ren)員(yuan)可(ke)(ke)(ke)以直接對(dui)當(dang)(dang)(dang)前沙(sha)(sha)(sha)(sha)盤(pan)(pan)(pan)仿(fang)(fang)(fang)(fang)(fang)真(zhen)(zhen)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)進(jin)(jin)(jin)行調整(zheng)(zheng)。在(zai)(zai)整(zheng)(zheng)個建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)過(guo)(guo)(guo)程(cheng)(cheng)(cheng)中(zhong)(zhong)(zhong)(zhong),施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)單位(wei)(wei)提(ti)(ti)交申請后,管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)人(ren)員(yuan)能夠迅(xun)速(su)通過(guo)(guo)(guo)沙(sha)(sha)(sha)(sha)盤(pan)(pan)(pan)仿(fang)(fang)(fang)(fang)(fang)真(zhen)(zhen)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)判斷(duan)其所需(xu)(xu)建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)剩(sheng)余量(liang),并及(ji)時(shi)(shi)制定采(cai)購(gou)(gou)(gou)計(ji)(ji)(ji)劃[1]。若施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)單位(wei)(wei)存(cun)(cun)(cun)(cun)(cun)在(zai)(zai)虛(xu)報材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)消(xiao)耗(hao)量(liang)、故意(yi)隱瞞材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)使(shi)(shi)(shi)用(yong)(yong)狀況(kuang)等(deng)問(wen)題(ti)時(shi)(shi),沙(sha)(sha)(sha)(sha)盤(pan)(pan)(pan)仿(fang)(fang)(fang)(fang)(fang)真(zhen)(zhen)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)可(ke)(ke)(ke)以為管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)人(ren)員(yuan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)判斷(duan)提(ti)(ti)供可(ke)(ke)(ke)靠的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)參照(zhao)依(yi)據(ju),進(jin)(jin)(jin)而(er)提(ti)(ti)升(sheng)建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)使(shi)(shi)(shi)用(yong)(yong)率,保(bao)障(zhang)建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)企業(ye)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)經(jing)濟利益不(bu)(bu)受損害。2.4材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)整(zheng)(zheng)理(li)(li)(li)(li)(li)(li)(li)(li)(li)方(fang)面(mian)。當(dang)(dang)(dang)建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)項(xiang)目(mu)(mu)進(jin)(jin)(jin)入(ru)(ru)(ru)竣工(gong)(gong)(gong)(gong)(gong)(gong)(gong)階段時(shi)(shi),建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)作(zuo)(zuo)量(liang)將(jiang)(jiang)(jiang)迅(xun)速(su)增加(jia)。在(zai)(zai)這一(yi)期間(jian)(jian),管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)人(ren)員(yuan)需(xu)(xu)要負(fu)責完(wan)成(cheng)建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)項(xiang)目(mu)(mu)建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)計(ji)(ji)(ji)劃使(shi)(shi)(shi)用(yong)(yong)量(liang)、材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)實(shi)際(ji)使(shi)(shi)(shi)用(yong)(yong)量(liang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)核(he)對(dui),總結二者產(chan)生(sheng)差(cha)距的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)原因(yin);分類統(tong)計(ji)(ji)(ji)剩(sheng)余的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao),并開展材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)入(ru)(ru)(ru)庫(ku)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)作(zuo)(zuo);開展建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)殘(can)料(liao)(liao)(liao)(liao)(liao)、廢(fei)料(liao)(liao)(liao)(liao)(liao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)處置與清理(li)(li)(li)(li)(li)(li)(li)(li)(li)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)作(zuo)(zuo),在(zai)(zai)節(jie)約工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)項(xiang)目(mu)(mu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)成(cheng)本的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)同時(shi)(shi),提(ti)(ti)升(sheng)建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)項(xiang)目(mu)(mu)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)環保(bao)性水平(ping)。出于縮短(duan)竣工(gong)(gong)(gong)(gong)(gong)(gong)(gong)階段建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)整(zheng)(zheng)理(li)(li)(li)(li)(li)(li)(li)(li)(li)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)作(zuo)(zuo)時(shi)(shi)間(jian)(jian)、提(ti)(ti)升(sheng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)作(zuo)(zuo)效率的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)目(mu)(mu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de),可(ke)(ke)(ke)運(yun)用(yong)(yong)沙(sha)(sha)(sha)(sha)盤(pan)(pan)(pan)仿(fang)(fang)(fang)(fang)(fang)真(zhen)(zhen)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)對(dui)這項(xiang)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)作(zuo)(zuo)進(jin)(jin)(jin)行改善與優化(hua)。例如,可(ke)(ke)(ke)分別(bie)于建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)項(xiang)目(mu)(mu)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)前、施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)開始時(shi)(shi),建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)立(li)建(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)筑(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)計(ji)(ji)(ji)劃使(shi)(shi)(shi)用(yong)(yong)沙(sha)(sha)(sha)(sha)盤(pan)(pan)(pan)仿(fang)(fang)(fang)(fang)(fang)真(zhen)(zhen)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)及(ji)動態性材(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)實(shi)際(ji)使(shi)(shi)(shi)用(yong)(yong)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)。相(xiang)對(dui)于竣工(gong)(gong)(gong)(gong)(gong)(gong)(gong)階段的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)繁(fan)瑣性核(he)對(dui)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)作(zuo)(zuo)而(er)言(yan),沙(sha)(sha)(sha)(sha)盤(pan)(pan)(pan)仿(fang)(fang)(fang)(fang)(fang)真(zhen)(zhen)模(mo)(mo)(mo)(mo)型(xing)(xing)(xing)(xing)(xing)可(ke)(ke)(ke)有效縮短(duan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)(li)(li)(li)(li)(li)(li)人(ren)員(yuan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)核(he)對(dui)時(shi)(shi)間(jian)(jian),且(qie)(qie)核(he)對(dui)過(guo)(guo)(guo)程(cheng)(cheng)(cheng)中(zhong)(zhong)(zhong)(zhong)錯(cuo)誤的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)幾率將(jiang)(jiang)(jiang)顯(xian)著(zhu)降低(di)。

3沙(sha)盤仿真模型的(de)應用策略(lve)

3.1管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)人(ren)(ren)(ren)員(yuan)(yuan)培訓(xun)策略。目前,傳(chuan)統建(jian)(jian)(jian)(jian)筑(zhu)材(cai)(cai)(cai)料(liao)(liao)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)工(gong)作(zuo)(zuo)(zuo)對(dui)(dui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)人(ren)(ren)(ren)員(yuan)(yuan)的(de)(de)(de)專(zhuan)業(ye)性(xing)要求相對(dui)(dui)較低。相比之(zhi)下(xia),基于沙盤(pan)(pan)仿(fang)真(zhen)(zhen)(zhen)模(mo)(mo)(mo)型(xing)的(de)(de)(de)建(jian)(jian)(jian)(jian)筑(zhu)材(cai)(cai)(cai)料(liao)(liao)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)則對(dui)(dui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)人(ren)(ren)(ren)員(yuan)(yuan)提(ti)出了(le)較高(gao)的(de)(de)(de)要求。為(wei)(wei)了(le)保障沙盤(pan)(pan)仿(fang)真(zhen)(zhen)(zhen)模(mo)(mo)(mo)型(xing)的(de)(de)(de)有(you)效(xiao)應(ying)用,需根據管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)人(ren)(ren)(ren)員(yuan)(yuan)的(de)(de)(de)專(zhuan)業(ye)性(xing)水(shui)平、知識(shi)基礎等要素(su),開展沙盤(pan)(pan)仿(fang)真(zhen)(zhen)(zhen)模(mo)(mo)(mo)型(xing)應(ying)用的(de)(de)(de)針對(dui)(dui)性(xing)培訓(xun)工(gong)作(zuo)(zuo)(zuo)。從(cong)沙盤(pan)(pan)仿(fang)真(zhen)(zhen)(zhen)模(mo)(mo)(mo)型(xing)的(de)(de)(de)介(jie)紹、應(ying)用優勢(shi)入手,結合(he)實(shi)(shi)例演(yan)示幫助(zhu)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)人(ren)(ren)(ren)員(yuan)(yuan)建(jian)(jian)(jian)(jian)立(li)正(zheng)確的(de)(de)(de)認知,更新其(qi)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)觀念,使其(qi)對(dui)(dui)沙盤(pan)(pan)仿(fang)真(zhen)(zhen)(zhen)模(mo)(mo)(mo)型(xing)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)模(mo)(mo)(mo)式(shi)形(xing)成一定(ding)的(de)(de)(de)認同[2]。為(wei)(wei)了(le)保證培訓(xun)效(xiao)果,還(huan)(huan)根據建(jian)(jian)(jian)(jian)筑(zhu)企(qi)業(ye)的(de)(de)(de)實(shi)(shi)際(ji)建(jian)(jian)(jian)(jian)筑(zhu)材(cai)(cai)(cai)料(liao)(liao)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)需求,設置(zhi)考(kao)核問卷(juan),評估管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)人(ren)(ren)(ren)員(yuan)(yuan)的(de)(de)(de)學習質(zhi)量,為(wei)(wei)沙盤(pan)(pan)仿(fang)真(zhen)(zhen)(zhen)模(mo)(mo)(mo)型(xing)在(zai)建(jian)(jian)(jian)(jian)筑(zhu)材(cai)(cai)(cai)料(liao)(liao)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)的(de)(de)(de)應(ying)用奠(dian)定(ding)良好的(de)(de)(de)基礎。3.2強化施(shi)工(gong)監管(guan)(guan)(guan)(guan)(guan)(guan)(guan)策略。除了(le)采購管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)與儲存(cun)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)外(wai),后期的(de)(de)(de)材(cai)(cai)(cai)料(liao)(liao)使用管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)及(ji)核對(dui)(dui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)直接受到建(jian)(jian)(jian)(jian)筑(zhu)工(gong)程(cheng)施(shi)工(gong)狀況的(de)(de)(de)影響。當(dang)(dang)(dang)施(shi)工(gong)單位并未按照建(jian)(jian)(jian)(jian)筑(zhu)材(cai)(cai)(cai)料(liao)(liao)使用計劃(hua)進行施(shi)工(gong)時,將會為(wei)(wei)材(cai)(cai)(cai)料(liao)(liao)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)工(gong)作(zuo)(zuo)(zuo)帶來一定(ding)的(de)(de)(de)難度。因此(ci),在(zai)引入沙盤(pan)(pan)仿(fang)真(zhen)(zhen)(zhen)模(mo)(mo)(mo)型(xing)這(zhe)種(zhong)新型(xing)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)模(mo)(mo)(mo)式(shi)的(de)(de)(de)同時,還(huan)(huan)應(ying)該加(jia)強對(dui)(dui)建(jian)(jian)(jian)(jian)筑(zhu)工(gong)程(cheng)施(shi)工(gong)監管(guan)(guan)(guan)(guan)(guan)(guan)(guan)工(gong)作(zuo)(zuo)(zuo)的(de)(de)(de)重(zhong)視(shi),協同材(cai)(cai)(cai)料(liao)(liao)外(wai)部管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)與工(gong)程(cheng)內部使用管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li),縮小材(cai)(cai)(cai)料(liao)(liao)實(shi)(shi)際(ji)消耗與預(yu)期材(cai)(cai)(cai)料(liao)(liao)使用計劃(hua)間的(de)(de)(de)差距,間接提(ti)升沙盤(pan)(pan)仿(fang)真(zhen)(zhen)(zhen)模(mo)(mo)(mo)型(xing)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)模(mo)(mo)(mo)式(shi)的(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)效(xiao)率。當(dang)(dang)(dang)監管(guan)(guan)(guan)(guan)(guan)(guan)(guan)中發現問題時,應(ying)在(zai)詢問材(cai)(cai)(cai)料(liao)(liao)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)(li)(li)人(ren)(ren)(ren)員(yuan)(yuan)的(de)(de)(de)建(jian)(jian)(jian)(jian)議后,采取適當(dang)(dang)(dang)的(de)(de)(de)措施(shi)進行糾正(zheng),以提(ti)升建(jian)(jian)(jian)(jian)筑(zhu)材(cai)(cai)(cai)料(liao)(liao)的(de)(de)(de)利(li)用率,遏制材(cai)(cai)(cai)料(liao)(liao)浪(lang)費等問題的(de)(de)(de)發生。

4結束語

沙盤(pan)仿(fang)(fang)真(zhen)(zhen)模(mo)型的(de)引入可以有效(xiao)(xiao)改善建筑材(cai)料管理(li)質量,提升管理(li)工作(zuo)的(de)效(xiao)(xiao)率。沙盤(pan)仿(fang)(fang)真(zhen)(zhen)模(mo)型的(de)應(ying)用具體(ti)(ti)體(ti)(ti)現在建筑材(cai)料的(de)采購管理(li)、儲存管理(li)以及使(shi)用管理(li)等方面。為(wei)(wei)了促進沙盤(pan)仿(fang)(fang)真(zhen)(zhen)模(mo)型作(zuo)用的(de)有效(xiao)(xiao)發揮(hui),需(xu)要借助管理(li)人(ren)員培(pei)訓策(ce)略、強化(hua)施工監管策(ce)略,為(wei)(wei)這種(zhong)新型管理(li)模(mo)式的(de)引入營造良好(hao)的(de)環境。

作(zuo)者:陳立峰(feng) 單位:江(jiang)蘇省徐州(zhou)技師學院

參考文獻:

篇6

關鍵詞:地鐵列車;空(kong)氣制動(dong);仿(fang)真(zhen)模(mo)型;AMESim軟件

地鐵列車中使用的(de)(de)制(zhi)動(dong)系統(tong)是空(kong)(kong)氣制(zhi)動(dong)系統(tong),該(gai)系統(tong)通(tong)常采用微機控制(zhi),通(tong)過(guo)直通(tong)電(dian)進(jin)行(xing)空(kong)(kong)氣制(zhi)動(dong)。地鐵制(zhi)動(dong)系統(tong)中包(bao)括下列幾(ji)個主要的(de)(de)組成部分:制(zhi)動(dong)指令發出與傳(chuan)輸單(dan)元、BCU(制(zhi)動(dong)控制(zhi))單(dan)元、基礎(chu)單(dan)元以及供風單(dan)元。傳(chuan)統(tong)的(de)(de)列車空(kong)(kong)氣制(zhi)動(dong)系統(tong)對其進(jin)行(xing)制(zhi)動(dong)特性檢驗(yan)(yan)時,往往采用的(de)(de)是實際(ji)試驗(yan)(yan)方(fang)法。近年(nian)來,仿真模擬(ni)技術受到了更多的(de)(de)歡迎。國內外的(de)(de)專家學者(zhe)們利用MATLAB軟件和數(shu)值分析方(fang)法構建出了具體的(de)(de)數(shu)學模型,發明了全新的(de)(de)針對性氣路仿真軟件AMESim。下面我們對典型的(de)(de)制(zhi)動(dong)系統(tong)進(jin)行(xing)AMESim仿真模擬(ni),并進(jin)行(xing)相應的(de)(de)試驗(yan)(yan)驗(yan)(yan)證。

1.空氣制動系統

地鐵列車采(cai)用的(de)制(zhi)動(dong)(dong)(dong)系統通(tong)常為(wei)電空直通(tong)系統,是一種(zhong)典(dian)型(xing)系統的(de)的(de)原理模型(xing)。整(zheng)個系統中(zhong)包括(kuo)控(kong)制(zhi)氣路(lu)以及(ji)動(dong)(dong)(dong)力(li)(li)氣路(lu)兩(liang)大部分,其中(zhong),控(kong)制(zhi)氣路(lu)中(zhong)有制(zhi)動(dong)(dong)(dong)、緩(huan)解、緊急(ji)電磁(ci)閥以及(ji)空重車閥組成,通(tong)過控(kong)制(zhi)各(ge)個電磁(ci)閥完成在(zai)中(zhong)繼閥上方預控(kong)不同(tong)壓力(li)(li)的(de)任務;動(dong)(dong)(dong)力(li)(li)氣路(lu)中(zhong)包括(kuo)中(zhong)繼閥、副風缸(gang)、管道(dao)以及(ji)制(zhi)動(dong)(dong)(dong)缸(gang),中(zhong)繼閥可以通(tong)過打(da)開和關閉制(zhi)動(dong)(dong)(dong)缸(gang)控(kong)制(zhi)氣路(lu),進而達(da)到緩(huan)解和制(zhi)動(dong)(dong)(dong)的(de)基本作用。

當(dang)地鐵列(lie)車(che)(che)收到司(si)機(ji)室傳(chuan)來的(de)(de)常(chang)用(yong)制(zhi)動(dong)(dong)(dong)指(zhi)令時(shi),BCU就可以根(gen)據(ju)具體的(de)(de)制(zhi)動(dong)(dong)(dong)要(yao)求以及氣(qi)壓(ya)實(shi)時(shi)調整具體的(de)(de)壓(ya)力輸(shu)(shu)出(chu),空氣(qi)進入到制(zhi)動(dong)(dong)(dong)缸以后制(zhi)動(dong)(dong)(dong)缸中的(de)(de)活塞開始作(zuo)用(yong)于(yu)(yu)閘片,進一步(bu)對(dui)踏面進行(xing)制(zhi)動(dong)(dong)(dong)作(zuo)用(yong),通(tong)常(chang)這種制(zhi)動(dong)(dong)(dong)發生在車(che)(che)速(su)(su)小于(yu)(yu)12km/h的(de)(de)低速(su)(su)過程中,整個制(zhi)動(dong)(dong)(dong)過程中會有(you)拖車(che)(che)動(dong)(dong)(dong)作(zuo)。若是地鐵列(lie)車(che)(che)收到緊(jin)急停車(che)(che)指(zhi)令,那么BCU將會輸(shu)(shu)出(chu)最(zui)大(da)壓(ya)力,進行(xing)摩(mo)擦(ca)制(zhi)動(dong)(dong)(dong)。另外(wai),停放制(zhi)動(dong)(dong)(dong)通(tong)常(chang)用(yong)在防止遛坡事故中。所(suo)以,分析地鐵列(lie)車(che)(che)的(de)(de)空氣(qi)制(zhi)動(dong)(dong)(dong)系(xi)統(tong),主要(yao)分析重點應該是氣(qi)制(zhi)動(dong)(dong)(dong)回(hui)路。

2.仿真模型的構建

2.1基本原理

AMESim軟(ruan)件(jian)中有多(duo)個元件(jian)庫,包括電子、液(ye)壓、氣動(dong)、控制、機械等等,根(gen)據標(biao)準氣動(dong)元件(jian)的組(zu)合搭配,可以建立起相應的列車空(kong)氣制動(dong)系(xi)統模型,并不需要相對(dui)復雜的數學方程。

模(mo)(mo)(mo)型構(gou)建的(de)(de)基(ji)(ji)本原理基(ji)(ji)于三個基(ji)(ji)本單(dan)元(yuan),包括容(rong)性、阻性以及感性單(dan)元(yuan)。其中(zhong),容(rong)性單(dan)元(yuan)中(zhong)有著(zhu)氣體的(de)(de)容(rong)腔,模(mo)(mo)(mo)型傳(chuan)熱期間其內部氣體便會發(fa)生相應的(de)(de)動態變化,所以,容(rong)性單(dan)元(yuan)的(de)(de)模(mo)(mo)(mo)擬(ni)模(mo)(mo)(mo)型是瞬時的(de)(de)。具體的(de)(de)壓力變化如式(1)所示:

(1)

式中,p表示的是容腔(qiang)中的氣(qi)體產(chan)生(sheng)的壓力, 分別(bie)表示有氣(qi)體質(zhi)量、溫度、體積變化(hua)導致的容腔(qiang)氣(qi)體產(chan)生(sheng)壓力。

阻性單元(yuan)中不包含容腔,那么不涉及(ji)傳熱效應,氣體壓強(qiang)和(he)溫度瞬間表示(shi)如式(2)所示(shi):

(2)

 式中,qm表(biao)示(shi)阻性單元(yuan)(yuan)的質量(liang)流(liu)量(liang), 表(biao)示(shi)元(yuan)(yuan)件兩(liang)端的壓差(cha),兩(liang)者呈非線性關(guan)系(xi)。

感性單元則主(zhu)要(yao)用于描述氣體具(ju)體的(de)宏觀運(yun)(yun)動狀態和慣性,管道中(zhong)的(de)氣體運(yun)(yun)動特性可以通過伯努利方程(cheng)表達。但是,通常(chang)情況下,氣體具(ju)有的(de)質量以及黏性都很低,慣性效應并不予以考慮。

2.2模型構建

空(kong)氣(qi)(qi)(qi)制動(dong)系統(tong)(tong)比較復雜,系統(tong)(tong)中涉及到的(de)(de)緊急、制動(dong)、緩解電磁閥(fa)可(ke)(ke)以(yi)(yi)統(tong)(tong)一(yi)采(cai)用(yong)通用(yong)型電磁閥(fa)代(dai)替,但是中繼閥(fa)以(yi)(yi)及空(kong)重車閥(fa)仍(reng)然需要進行(xing)二次開(kai)發(fa)模(mo)擬(ni)。采(cai)用(yong)AMESim軟(ruan)件(jian)(jian),依(yi)據上(shang)文(wen)中的(de)(de)基(ji)本原理,可(ke)(ke)以(yi)(yi)構建出空(kong)氣(qi)(qi)(qi)制動(dong)系統(tong)(tong)的(de)(de)基(ji)本模(mo)型。模(mo)型中包含了系統(tong)(tong)中涉及到的(de)(de)所(suo)有元件(jian)(jian)裝(zhuang)置,信(xin)息流有氣(qi)(qi)(qi)動(dong)和控(kong)制信(xin)息,氣(qi)(qi)(qi)動(dong)信(xin)息由管路相連接,控(kong)制信(xin)息可(ke)(ke)以(yi)(yi)通過電磁閥(fa)控(kong)制。另外,f(x)表(biao)示的(de)(de)是空(kong)重車閥(fa)的(de)(de)輸出信(xin)號,其(qi)變化與空(kong)氣(qi)(qi)(qi)彈簧(huang)的(de)(de)壓力(li)值有關。

EP單(dan)元為(wei)控制(zhi)閥(fa),可以(yi)根據制(zhi)動(dong)(dong)指令調節中(zhong)(zhong)繼閥(fa)中(zhong)(zhong)的(de)CV;空(kong)重(zhong)車閥(fa)則表現出受到車輛載重(zhong)的(de)影響,CV壓(ya)力的(de)具體變化;中(zhong)(zhong)繼閥(fa)的(de)作用是將壓(ya)縮空(kong)氣的(de)具體流(liu)量進行(xing)放大(da),可以(yi)等效為(wei)活塞缸(gang),兩(liang)邊分別是制(zhi)動(dong)(dong)缸(gang)產生壓(ya)力以(yi)及CV壓(ya)力。另外,對于該系統中(zhong)(zhong)的(de)管路、風(feng)閥(fa)、防滑(hua)閥(fa)等元件,由(you)于其(qi)容積變化相對較小,可以(yi)采用固定容積進行(xing)模擬。

3.結果驗證分析

構(gou)建出仿(fang)真模(mo)型以(yi)(yi)(yi)后,便可以(yi)(yi)(yi)進行實(shi)際(ji)工況模(mo)擬,常(chang)見(jian)的(de)工況包括常(chang)用(yong)制(zhi)動(dong)(dong)、緊急制(zhi)動(dong)(dong)以(yi)(yi)(yi)及階(jie)段制(zhi)動(dong)(dong)。設計(ji)常(chang)用(yong)制(zhi)動(dong)(dong)壓力CV為(wei)250kPa,時間(jian)為(wei)10s,將0-2s規(gui)定(ding)為(wei)緩解,2-6s規(gui)定(ding)為(wei)常(chang)用(yong)制(zhi)動(dong)(dong),6s以(yi)(yi)(yi)后則規(gui)定(ding)為(wei)再(zai)次緩解直到(dao)仿(fang)真結束,根據常(chang)用(yong)制(zhi)動(dong)(dong)模(mo)擬仿(fang)真結果可以(yi)(yi)(yi)看出,CV壓力的(de)變化要快于(yu)(yu)(yu)制(zhi)動(dong)(dong)缸壓力響(xiang)應速(su)度。出現(xian)這(zhe)種現(xian)象,是因為(wei)中繼閥(fa)會受到(dao)結構(gou)中產生的(de)背壓,同時,在制(zhi)動(dong)(dong)緩解時CV壓力同樣下降速(su)度要快于(yu)(yu)(yu)制(zhi)動(dong)(dong)缸的(de)壓力,二者之(zhi)間(jian)出現(xian)的(de)最(zui)大(da)延時不大(da)于(yu)(yu)(yu)0.5s。

緊急制動(dong)(dong)模擬時,將CV壓(ya)力(li)設(she)計為500kPa,根據仿(fang)真結果發現CV壓(ya)力(li)變(bian)化與(yu)常(chang)用(yong)制動(dong)(dong)的(de)(de)變(bian)化趨(qu)勢(shi)是(shi)相同的(de)(de),但是(shi)制動(dong)(dong)缸的(de)(de)壓(ya)力(li)上(shang)升速(su)度要(yao)大(da)于常(chang)用(yong)制動(dong)(dong)工(gong)況。

階(jie)段制(zhi)(zhi)動(dong)工況(kuang)下,設計(ji)仿真(zhen)時間為(wei)20s,發(fa)現(xian)0-2s為(wei)緩解,2-12s表示(shi)階(jie)段制(zhi)(zhi)動(dong),12s以后則是再次緩解直到仿真(zhen)結(jie)束,結(jie)果(guo)顯示(shi)該(gai)過程中,制(zhi)(zhi)動(dong)缸(gang)壓力(li)(li)反應慢(man)于(yu)CV壓力(li)(li)。經(jing)對比分析,該(gai)結(jie)果(guo)和(he)常用制(zhi)(zhi)動(dong)以及緊急(ji)制(zhi)(zhi)動(dong)的結(jie)果(guo)是相同的。

4.結語

地鐵列車(che)空(kong)氣制動系(xi)統經(jing)過仿真模擬后,經(jing)試驗驗證,發現常用制動以(yi)及(ji)緊急制動的(de)制動缸壓力變化(hua)時(shi)間比仿真時(shi)間長1/10,滿足(zu)系(xi)統的(de)功能(neng)條件。制動結束以(yi)后,中繼(ji)閥(fa)內部元(yuan)件可以(yi)起到有效的(de)阻尼(ni)租(zu)用,進而誤差并(bing)不影響列車(che)的(de)正常使用。

參考文獻:

[1]左建勇,王宗明,吳萌嶺.地鐵列(lie)車空(kong)氣制動(dong)系(xi)統仿真模型[J].交通運輸工程學(xue)報,2013(02).

篇7

關鍵詞:雷諾應(ying)力(li)模(mo)(mo)型;標準(zhun)k-ε模(mo)(mo)型;有限體(ti)積(ji)法;計算流體(ti)力(li)學;轎車;外(wai)流場

中(zhong)圖分類號(hao):U467.13;TP391.9;TB115;O35文(wen)獻標志碼(ma):A

Modeling and simulation on outer flow field around sedan based on RSM

ZHU Hui, YANG Zhigang

(Shanghai Automotive Wind Tunnel Center, Tongji Univ., Shanghai 201804, China)

Abstract:The outer flow field over sedan is modeled and simulated based on Reynolds Stress Model (RSM) and Finite Volume Method (FVM). 3D steady numerical simulation is carried out for 1∶1 sedan model in 20 m/s velocity value. Especially, the mesh structure, boundary condition and choice of pressure-velocity coupling are specified. By comparison with the results of experiment and standard k-ε model simulation, it is showed that RSM model is better than standard k-ε model when they are adopted to simulate the separated outer flow field around sedan. The results are significant for the study of outer flow field over vehicles.

Key words:Reynolds stress model; standard k-ε model; finite volume method; computational fluid dynamics; sedan; outer flow field

0引言

空(kong)氣(qi)動力(li)(li)學(xue)指標是轎車(che)最(zui)重要的(de)參數(shu)之一.[1]車(che)輛空(kong)氣(qi)動力(li)(li)學(xue)仿真借(jie)助(zhu)計算(suan)(suan)流體力(li)(li)學(xue)(Computional Fluid Dynamics, CFD)方(fang)法研究車(che)輛空(kong)氣(qi)動力(li)(li)學(xue)的(de)特(te)性(xing)(如(ru)“六(liu)分(fen)力(li)(li)”等).目前計算(suan)(suan)結(jie)果(guo)和實(shi)驗(yan)結(jie)果(guo)之間(jian)存在的(de)誤差[2]可(ke)能由紊流模型和數(shu)值特(te)征(網格(ge)類型和數(shu)量(liang)、數(shu)值方(fang)法、計算(suan)(suan)方(fang)案)所引起或由二者結(jie)合所致.

本文采用(yong)數(shu)值建模(mo)仿真法(fa),通過比較(jiao)兩種湍流(liu)(liu)模(mo)型(xing)(xing)(雷諾應(ying)力湍流(liu)(liu)模(mo)型(xing)(xing)(Reynolds Stress Model, RSM)和標準k-ε模(mo)型(xing)(xing))的(de)計算(suan)結(jie)果(guo),并與風洞實驗(yan)結(jie)果(guo)進行驗(yan)證,揭示在(zai)描述轎(jiao)車(che)車(che)外流(liu)(liu)場(chang)的(de)分離特性時RSM模(mo)型(xing)(xing)優于標準k-ε模(mo)型(xing)(xing).

1湍流模型

計算(suan)(suan)實(shi)踐表(biao)明:對(dui)于(yu)三維性和各向異性較(jiao)強(qiang),并伴有流動(dong)分離(li)(li)的流場(如航空葉(xie)輪機械、旋風分離(li)(li)設備、化學反應裝(zhuang)置等),雖(sui)然RSM模(mo)型(xing)計算(suan)(suan)量較(jiao)大,但其計算(suan)(suan)結果(guo)優于(yu)標(biao)準k-ε模(mo)型(xing).[4,5]

文獻[6]將(jiang)汽車(che)尾跡中漩(xuan)渦形成的(de)(de)機制(zhi)歸(gui)納為(wei)5類,皆體(ti)現(xian)大分(fen)離和各向異性(xing)(xing)的(de)(de)特(te)(te)性(xing)(xing),加之車(che)體(ti)近壁面的(de)(de)特(te)(te)性(xing)(xing),使得汽車(che)繞流的(de)(de)數(shu)值和實驗分(fen)析非常復(fu)雜.標準(zhun)(zhun)k-ε模型(xing)在模化時引入各向同性(xing)(xing)假(jia)設,勢(shi)必對(dui)流動中強各向異性(xing)(xing)的(de)(de)特(te)(te)點體(ti)現(xian)不足.基于以上分(fen)析,本文采(cai)用RSM和標準(zhun)(zhun)k-ε兩(liang)種模型(xing)對(dui)轎車(che)外流場進行研(yan)究.

2幾(ji)何模(mo)型及網格說明

為使計算結果具有普遍性(不局(ju)限于(yu)具體產品),采用如圖1所(suo)示(shi)的轎車(che)1∶1簡化模型(忽略車(che)窗、后(hou)視鏡和(he)車(che)門把(ba)手等表(biao)面附件(jian)),其(qi)長、寬、高分別約為4.6,1.7,1.6 m.

空間(jian)計(ji)(ji)算區(qu)域(yu),長22 m,寬10.4 m,高5.4 m.x正(zheng)向(xiang)為(wei)從(cong)左到右的(de)(de)空氣流(liu)動方(fang)(fang)向(xiang), y正(zheng)向(xiang)為(wei)從(cong)左到右橫截方(fang)(fang)向(xiang), z正(zheng)向(xiang)垂直向(xiang)上.網格(ge)(ge)(ge)劃(hua)分(fen)是數值(zhi)分(fen)析(xi)過程(cheng)中的(de)(de)重要環節(jie)之一,其形式直接影響(xiang)結果的(de)(de)合理性(xing)和精度[7,8].本文基于有限體(ti)積法(Finite Volume Method, FVM)對(dui)計(ji)(ji)算區(qu)域(yu)進行劃(hua)分(fen)和流(liu)場計(ji)(ji)算,所以網格(ge)(ge)(ge)方(fang)(fang)案(an)為(wei)關鍵技術之一.為(wei)減(jian)輕數值(zhi)黏性(xing)的(de)(de)影響(xiang),計(ji)(ji)算區(qu)域(yu)為(wei)2個長方(fang)(fang)型區(qu)域(yu),為(wei)不(bu)等間(jian)距結構(gou)六面體(ti)網格(ge)(ge)(ge),內部為(wei)四面體(ti)非結構(gou)化網格(ge)(ge)(ge).為(wei)了節(jie)約CPU時間(jian),在(zai)流(liu)場變化較為(wei)劇烈的(de)(de)地方(fang)(fang)采用(yong)較密的(de)(de)網格(ge)(ge)(ge),以提高計(ji)(ji)算精度,而在(zai)車(che)體(ti)以外較遠區(qu)域(yu)采用(yong)較稀的(de)(de)網格(ge)(ge)(ge),總數320萬單元(yuan).具體(ti)見圖2.

3物(wu)性、邊界(jie)條(tiao)件及迭(die)代方法(fa)

由(you)于(yu)模(mo)擬計算的空氣流速較小,空氣的可壓縮性(xing)(xing)可以忽略,即認(ren)為空氣的溫度(du)、黏性(xing)(xing)和(he)參考壓強(qiang)不變,表1列出計算條件下的各種參數值.

出(chu)口采用(yong)壓力出(chu)口邊界條件,表(biao)壓取0 Pa.K,ε及(ji)雷諾應(ying)力的取法與進口類似.

地面和車身皆采用(yong)無滑(hua)移邊界(jie)條件,其目(mu)的是與實驗情(qing)況(kuang)保(bao)持(chi)一(yi)致.計算域回(hui)型面采用(yong)對(dui)稱(cheng)邊界(jie).

迭代(dai)方(fang)法采(cai)用PATANKER[9]和SPALDING于1972年提出的分離(li)式SIMPLE(Semi-Implicit Method for Pressure-Linked Equation)算法,其核(he)心為“猜測―修正”過程,在交錯網格的基礎上(shang)計算壓(ya)力場,得出速(su)度場,反復修正,從而達到(dao)求解控制方(fang)程組(zu)的目的.具體(ti)計算步(bu)驟見圖3.

4計算結果

(1)從對轎車外(wai)流場模(mo)擬(ni)的(de)整體圖譜看,兩(liang)種(zhong)模(mo)型給出(chu)的(de)信息較(jiao)(jiao)為吻(wen)合.與文(wen)獻[6]所給出(chu)的(de)測試圖譜比較(jiao)(jiao),可見兩(liang)種(zhong)模(mo)型對轎車外(wai)流場的(de)總體描(miao)述(shu)(壓力梯度(du)、速度(du)等的(de)分(fen)布)是可信的(de).

(2)轎車(che)(che)外流場(chang)的特征為(wei):在(zai)(zai)前臉處存在(zai)(zai)氣(qi)(qi)流滯止區,由(you)此(ci)氣(qi)(qi)流分(fen)開繞(rao)流車(che)(che)體(ti),下部(bu)(bu)(bu)(bu)氣(qi)(qi)流由(you)于地面、車(che)(che)底部(bu)(bu)(bu)(bu)和車(che)(che)輪(lun)的相互作(zuo)用(yong)(yong),情況比較復(fu)雜;上部(bu)(bu)(bu)(bu)氣(qi)(qi)流在(zai)(zai)繞(rao)流車(che)(che)體(ti)時,于發(fa)(fa)動機罩和擋(dang)風玻璃之間發(fa)(fa)生局部(bu)(bu)(bu)(bu)氣(qi)(qi)流分(fen)離;氣(qi)(qi)流經過頂蓋向(xiang)后發(fa)(fa)展(zhan),與從車(che)(che)底部(bu)(bu)(bu)(bu)上卷氣(qi)(qi)流相互作(zuo)用(yong)(yong),在(zai)(zai)車(che)(che)體(ti)尾部(bu)(bu)(bu)(bu)發(fa)(fa)生較大(da)分(fen)離;其渦形態,根據剪切層(ceng)相互作(zuo)用(yong)(yong)模型描述為(wei)車(che)(che)身尾部(bu)(bu)(bu)(bu)上下兩剪切層(ceng)卷起一對上下漩渦,兩渦繼續向(xiang)下游發(fa)(fa)展(zhan),以馬蹄渦的形式存在(zai)(zai)于分(fen)離區內(nei).

(3)通過圖(tu)6~8之間及表2的(de)比較可見,在(zai)同等網(wang)格質(zhi)(zhi)量條件下(xia),具(ju)(ju)有各(ge)向異性(xing)特質(zhi)(zhi)的(de)RSM模(mo)型(xing)在(zai)描(miao)述(shu)具(ju)(ju)有明(ming)顯分離特性(xing)的(de)轎車外流場(chang)時,要優(you)于具(ju)(ju)有各(ge)向同性(xing)特質(zhi)(zhi)的(de)標準k-ε模(mo)型(xing).所以,RSM結合FVM對車輛外流場(chang)研究具(ju)(ju)有借鑒意義.

參考文獻:

[1]姜樂華, 符正(zheng)氣(qi). CFD在汽車空(kong)氣(qi)動力學(xue)研究中(zhong)的應用[J]. 湖南大學(xue)學(xue)報:自然科學(xue)版, 1997, 24(4): 52-56.

[2]張揚軍, 呂振(zhen)華. 汽車(che)空(kong)氣動力學數(shu)值(zhi)仿真研究進(jin)展(zhan)[J]. 汽車(che)工(gong)程, 2001, 23(2): 82-91.

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篇8

關鍵詞:空氣系統(tong) 實時仿真(zhen) 不可壓流(liu)體

中圖分類號:O351.3 文(wen)獻標識碼:A 文(wen)章編(bian)號:1007-9416(2012)11-0136-02

1、引言

航(hang)空(kong)發(fa)動(dong)(dong)機(ji)空(kong)氣(qi)(qi)(qi)系統(tong)是(shi)關系到發(fa)動(dong)(dong)機(ji)熱端部(bu)件(jian)冷(leng)卻(que)的(de)(de)(de)(de)內(nei)(nei)流系統(tong)[1]。空(kong)氣(qi)(qi)(qi)系統(tong)通(tong)常是(shi)從壓(ya)氣(qi)(qi)(qi)機(ji)的(de)(de)(de)(de)適當位置抽(chou)取空(kong)氣(qi)(qi)(qi),通(tong)過發(fa)動(dong)(dong)機(ji)主通(tong)道的(de)(de)(de)(de)內(nei)(nei)側和(he)(he)外側的(de)(de)(de)(de)各種(zhong)流動(dong)(dong)元件(jian)按(an)設計的(de)(de)(de)(de)流路及(ji)要(yao)求(qiu)的(de)(de)(de)(de)流動(dong)(dong)參數(壓(ya)力,溫度和(he)(he)流量(liang))流動(dong)(dong)并(bing)完成規定(ding)的(de)(de)(de)(de)各項(xiang)功能:供(gong)(gong)給并(bing)控制渦輪(lun)冷(leng)卻(que)葉片的(de)(de)(de)(de)冷(leng)卻(que)空(kong)氣(qi)(qi)(qi),保(bao)證葉片冷(leng)氣(qi)(qi)(qi)進口(kou)具有要(yao)求(qiu)的(de)(de)(de)(de)壓(ya)力和(he)(he)溫度;冷(leng)卻(que)渦輪(lun)轉(zhuan)子、靜子等熱端部(bu)件(jian),保(bao)持工作(zuo)時允許的(de)(de)(de)(de)溫度狀(zhuang)態(tai);控制壓(ya)氣(qi)(qi)(qi)機(ji)盤軸(zhou)的(de)(de)(de)(de)溫度狀(zhuang)態(tai);為軸(zhou)承提供(gong)(gong)封(feng)嚴空(kong)氣(qi)(qi)(qi);阻隔(ge)高壓(ya)熱氣(qi)(qi)(qi)入侵等。因(yin)此(ci)空(kong)氣(qi)(qi)(qi)系統(tong)在(zai)航(hang)空(kong)發(fa)動(dong)(dong)機(ji)設計中舉足輕重。

航空(kong)發動機空(kong)氣系(xi)(xi)統(tong)(tong)一直以穩態計算(suan)為主,一般(ban)留(liu)有(you)很大域(yu)度。隨著航空(kong)發動機的發展,穩態計算(suan)已經不(bu)能滿足需求(qiu),空(kong)氣系(xi)(xi)統(tong)(tong)精(jing)確化(hua)設計成為一個(ge)(ge)不(bu)可避(bi)免的問題。民用適航規章CCAR33部中有(you)多個(ge)(ge)條款涉及到對航空(kong)發動機空(kong)氣系(xi)(xi)統(tong)(tong)的要求(qiu)。

適航標準要求(qiu)空氣系統(tong)設(she)計(ji)(ji)中必須(xu)考(kao)慮飛行包線內的(de)工(gong)作(zuo)特(te)性(xing),并且(qie)盡(jin)可(ke)能保證航空發動機在整個工(gong)作(zuo)循(xun)環中能過正常工(gong)作(zuo)。這些要求(qiu)都需要對空氣系統(tong)的(de)設(she)計(ji)(ji)進行瞬態設(she)計(ji)(ji),準確掌(zhang)握其在整個工(gong)作(zuo)循(xun)環中的(de)工(gong)作(zuo)狀(zhuang)態,避免局部失效(xiao)和瞬間失效(xiao),同時也可(ke)以為結構、傳熱等設(she)計(ji)(ji)提供詳細(xi)的(de)數據,便于其他部分(fen)的(de)設(she)計(ji)(ji)。因(yin)此(ci)空氣系統(tong)的(de)實(shi)時仿真是亟待解決(jue)的(de)問題(ti)。

2、空氣系統瞬(shun)態計算方法

篇9

【關鍵詞】RePast 逃生(sheng)模(mo)型 仿真

1 引言

煤炭(tan)行業(ye)(ye)是(shi)我(wo)國(guo)從(cong)業(ye)(ye)人數眾(zhong)多的(de)(de)行業(ye)(ye)之(zhi)(zhi)一(yi),與此同時(shi),煤炭(tan)行業(ye)(ye)也是(shi)事故多發的(de)(de)行業(ye)(ye)之(zhi)(zhi)一(yi)。因此煤礦(kuang)安(an)全(quan)逃生就成為國(guo)內外研(yan)究(jiu)者(zhe)重(zhong)點研(yan)究(jiu)的(de)(de)一(yi)個問題,在(zai)我(wo)國(guo)尤其具有(you)重(zhong)大的(de)(de)研(yan)究(jiu)意義。疏散模(mo)擬(ni)軟件、數W建(jian)模(mo)、虛擬(ni)現實(shi)技(ji)術和計算機建(jian)模(mo)技(ji)術等是(shi)研(yan)究(jiu)煤礦(kuang)安(an)全(quan)問題常見的(de)(de)研(yan)究(jiu)方法。

2 模型簡介

RePast由芝加哥大學(xue)社會科學(xue)計算(suan)研究(jiu)中心[11]開發研制,是一個開源的仿真工具,支持Java語言,主要用來給復雜(za)性(xing)個體行為建模(mo)。

礦井逃(tao)生模型(xing)(xing)(xing)中(zhong)涉及到了RePast仿(fang)真(zhen)的(de)(de)(de)三要素:模型(xing)(xing)(xing)對(dui)(dui)象(Model Object)、空間對(dui)(dui)象(Space Object)和主體對(dui)(dui)象(Agent Object),在(zai)該模型(xing)(xing)(xing)中(zhong)分別(bie)由CoalMineModel、CoalMineSpace和CoalMineAgent三個類(lei)(lei)(lei)實現。CoalMineModel類(lei)(lei)(lei)是模型(xing)(xing)(xing)對(dui)(dui)應的(de)(de)(de)仿(fang)真(zhen)程(cheng)序的(de)(de)(de)起點,實現模型(xing)(xing)(xing)的(de)(de)(de)控(kong)制,它(ta)是最優先執行的(de)(de)(de)。CoalMineSpace類(lei)(lei)(lei)為模型(xing)(xing)(xing)中(zhong)的(de)(de)(de)Agent提供空間活動環境,CoalMineAgent類(lei)(lei)(lei)實現模型(xing)(xing)(xing)中(zhong)Agent的(de)(de)(de)各種設置(如種類(lei)(lei)(lei)、屬性等(deng))和Agent的(de)(de)(de)控(kong)制。

包括(kuo)CoalMineModel、CoalMineSpace和(he)CoalMineAgent三(san)個類(lei)的礦井逃生模型仿真程(cheng)序包括(kuo)Private void buildModel()方法、Private void buildDisplay()方法和(he)Private void buildschedule()方法。

Private void buildModel()方法(fa)(fa)用于創建模型(xing)運行的(de)環境,包括主體對象和環境對象兩種。利(li)用Private void addAgents()方法(fa)(fa)可以(yi)在模型(xing)中添加numAgents個Agent,再利(li)用Private voidbuildModel()方法(fa)(fa)導入井下巷道地圖。除此以(yi)外(wai),還可以(yi)在模型(xing)中設置(zhi)災害的(de)初(chu)始(shi)發生坐(zuo)標,避災點和出口位置(zhi)等信息。

Private void buildDisplay()方(fang)法(fa)(fa)用于創建顯(xian)(xian)示(shi)(shi)界面和(he)(he)圖表(biao)。模(mo)(mo)型(xing)中(zhong)(zhong)需要(yao)顯(xian)(xian)示(shi)(shi)的主(zhu)體和(he)(he)圖表(biao)都是通(tong)過這個(ge)(ge)方(fang)法(fa)(fa)進行顯(xian)(xian)示(shi)(shi)的。模(mo)(mo)型(xing)運行起來(lai)(lai)后(hou),其顯(xian)(xian)示(shi)(shi)界面是一個(ge)(ge)二維的網格結(jie)構,每(mei)一個(ge)(ge)網格代表(biao)一個(ge)(ge)Agent可(ke)以(yi)(yi)移動(dong)到的位置,因此每(mei)一個(ge)(ge)網格都有(you)對應(ying)的坐標(biao)。在Private void buildDisplay()方(fang)法(fa)(fa)中(zhong)(zhong),可(ke)以(yi)(yi)記錄和(he)(he)報告Agent的活(huo)動(dong)狀(zhuang)況;圖表(biao)用來(lai)(lai)記錄模(mo)(mo)型(xing)中(zhong)(zhong)每(mei)一個(ge)(ge)“tick”(RePast仿真平臺(tai)中(zhong)(zhong)的時間(jian)單位)所對應(ying)的參數的值,在本模(mo)(mo)型(xing)中(zhong)(zhong)主(zhu)要(yao)是同來(lai)(lai)統計逃(tao)生的Agent數量。通(tong)過Displaysurface對象可(ke)以(yi)(yi)實現顯(xian)(xian)示(shi)(shi)界面,Displaysurface對象通(tong)常放在一個(ge)(ge)預定(ding)義的setup()方(fang)法(fa)(fa)中(zhong)(zhong),此方(fang)法(fa)(fa)常用來(lai)(lai)對模(mo)(mo)型(xing)進行參數配置。

Private void buildschedule()方法建立改變模(mo)型狀(zhuang)態的時(shi)間表(biao),即模(mo)型在(zai)什(shen)么(me)時(shi)間運(yun)用什(shen)么(me)方法調用什(shen)么(me)對(dui)象。在(zai)模(mo)型中(zhong),每運(yun)行一個“tick”,顯示界面(mian)和圖表(biao)都會相應地進行更新,本模(mo)型中(zhong)用于記(ji)錄(lu)每一個時(shi)間段(duan)Agent的情況及災害的蔓延情況。

CoalMineAgent類實(shi)現(xian)Agent的(de)活動(dong),包(bao)括Agent的(de)初始化、訪問(wen)控制、所在空間的(de)更新、Agent移動(dong)的(de)方向矢(shi)量設置(zhi)、Agent的(de)顯(xian)示以(yi)及狀(zhuang)態報(bao)告等內(nei)容。CoalMineAgent類中包(bao)括了public void step()、public void setVxVy()、public void draw()、public void report()等方法,實(shi)現(xian)了Agent的(de)設置(zhi)、顯(xian)示和狀(zhuang)態報(bao)告等內(nei)容。

CoalMineSpace類實(shi)現(xian)模型(xing)中空(kong)間(jian)活動(dong)環境的(de)(de)(de)(de)初始(shi)化、災害(hai)(hai)的(de)(de)(de)(de)初始(shi)發生地(di)、Agent在(zai)空(kong)間(jian)中的(de)(de)(de)(de)初始(shi)化分布等情況設置(zhi)(zhi)。在(zai)空(kong)間(jian)活動(dong)環境中,每(mei)一(yi)個(ge)柵格(ge)(ge)都有一(yi)個(ge)對應的(de)(de)(de)(de)坐標(biao),可(ke)以(yi)用(x,y)來表示,Agent就在(zai)這樣的(de)(de)(de)(de)柵格(ge)(ge)單(dan)元上活動(dong),其坐標(biao)與柵格(ge)(ge)單(dan)元的(de)(de)(de)(de)坐標(biao)相對應。CoalMineSpace類包括了public void setFire(),public boolean addAgent(),public int getTypeAt(),public boolean moveAgentAt()等方法,分別實(shi)現(xian)災害(hai)(hai)初始(shi)發生地(di)的(de)(de)(de)(de)設置(zhi)(zhi)、Agent的(de)(de)(de)(de)添(tian)加、災害(hai)(hai)類型(xing)的(de)(de)(de)(de)設置(zhi)(zhi)及Agent的(de)(de)(de)(de)移(yi)動(dong)位(wei)移(yi)的(de)(de)(de)(de)設置(zhi)(zhi)。

除了以(yi)(yi)上三個(ge)主(zhu)要的類(lei)以(yi)(yi)外(wai),還有兩個(ge)類(lei)Disaster和(he)Point,用于(yu)設置災害的基本(ben)信息(xi)和(he)空間環境中的避災硐室及出口位置等信息(xi)。

3 模型(xing)的仿真(zhen)結(jie)果

礦井逃生模型的運(yun)行界面(mian)如圖1所示。

模型界面包括六部分,分別是:

(1)RePast仿(fang)真平臺工具條,位于(yu)模(mo)型界面的最上方(fang),實現(xian)對模(mo)型的運行控制;

(2)Coal Mine Display,模型(xing)運行(xing)的(de)顯示(shi)界(jie)面(mian),顯示(shi)模型(xing)運行(xing)過程中的(de)各(ge)個“tick”的(de)狀態;

(3)RePast Output輸出窗(chuang)口,輸出模型運行過程中的統計數據;

(4)fireInSpace窗口,統計火(huo)災(zai)蔓(man)延(yan)情況;

(5)Coal Mine Model Setting窗(chuang)口,設置(zhi)和顯示模型中的參(can)數;

(6)Amount Of Agent In Space窗(chuang)口,火災(zai)發(fa)生時Agent的逃(tao)生情況統計(ji)。從圖3的(6)窗(chuang)口中可(ke)以(yi)看出(chu),大部分Agent在火災(zai)蔓延到自己(ji)所處的工作面時已經實現成(cheng)功逃(tao)生。

4 結束語

本文利用基于RePast的(de)(de)(de)仿(fang)真(zhen)平臺對(dui)礦(kuang)井逃(tao)生(sheng)模(mo)型進行仿(fang)真(zhen),給研究煤(mei)礦(kuang)安全問題提(ti)供了一(yi)個新(xin)視角。利用該模(mo)型能夠(gou)較好的(de)(de)(de)實現(xian)井下逃(tao)生(sheng)。下一(yi)步(bu)的(de)(de)(de)研究將是(shi)對(dui)Agent的(de)(de)(de)種類和(he)決策(ce)及(ji)模(mo)型的(de)(de)(de)運行規則加(jia)以(yi)細(xi)化,并將針對(dui)不(bu)同(tong)災害(hai)類型和(he)Agent生(sheng)成不(bu)同(tong)的(de)(de)(de)逃(tao)生(sheng)路線。

參考文獻

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作者簡介

張俊瑞,女(nv),碩(shuo)士研(yan)(yan)究生學歷。主要(yao)研(yan)(yan)究方向(xiang)為智能軟件技(ji)術(shu)。

王秀華(hua),女,碩士學位。主要研究方向為(wei)數據庫與(yu)智能信息處理。

篇10

關(guan)鍵詞:元胞傳輸模(mo)型;元胞密度;交通流量;回滯現象

中(zhong)圖分類號(hao):TP391;U491 文(wen)獻標識碼:A 文(wen)章編號(hao):2095-1302(2013)11-0046-02

0 引 言

隨著社會經濟的(de)發展,交(jiao)通(tong)(tong)運輸(shu)問題越(yue)來越(yue)成(cheng)為(wei)人們(men)關注的(de)焦點,交(jiao)通(tong)(tong)仿(fang)真模型(xing)(xing)應運而生。利用(yong)交(jiao)通(tong)(tong)仿(fang)真可以(yi)(yi)預(yu)測交(jiao)通(tong)(tong)流在(zai)各種交(jiao)通(tong)(tong)管(guan)理方(fang)案(an)下的(de)特(te)性變化,從而對管(guan)理方(fang)案(an)進行(xing)評(ping)價和改進。其中,宏(hong)觀模型(xing)(xing)尤其是元胞傳輸(shu)模型(xing)(xing),可以(yi)(yi)較(jiao)好地模擬出激波(bo)、排(pai)(pai)隊(dui)形成(cheng)、排(pai)(pai)隊(dui)消(xiao)散以(yi)(yi)及多路段間的(de)相互影響等交(jiao)通(tong)(tong)動力學(xue)特(te)性。

元胞傳輸模型的(de)(de)(de)研究仿真(zhen)主要集中于元胞長(chang)度不(bu)(bu)變,流量(liang)-密度的(de)(de)(de)關系圖(tu)為理(li)想的(de)(de)(de)三角形(xing),即無(wu)回(hui)滯現象。但是(shi)在(zai)實際中,城市路段(duan)多且長(chang)度較短,長(chang)短不(bu)(bu)一;此(ci)外,路段(duan)中的(de)(de)(de)普(pu)通段(duan)和引道段(duan)長(chang)度不(bu)(bu)一樣。對(dui)于這兩種情況,可以直接利用可變元胞傳輸模型建立不(bu)(bu)同長(chang)度的(de)(de)(de)元胞,并且流量(liang)-密度的(de)(de)(de)關系圖(tu)中存在(zai)亞穩態區(qu),此(ci)區(qu)域的(de)(de)(de)存在(zai)導致(zhi)了回(hui)滯現象的(de)(de)(de)發生。而(er)這兩點將是(shi)本文研究的(de)(de)(de)核心內容(rong)。

1 路(lu)網選擇與符(fu)號定義(yi)

在一個(ge)含有匝道的(de)雙向四車道的(de)高速公(gong)路(lu)上,為了模擬高速公(gong)路(lu)上的(de)交通流,將現實路(lu)網(wang)劃分如圖1所(suo)示的(de)由相互連接的(de)長度可變的(de)同質小段(元(yuan)胞)構成的(de)計算機仿真路(lu)網(wang)。

在道路狀態演化(hua)時間T內(nei),對t∈[0,T]引入如下變量:

L(i):元(yuan)胞i的長度,每個元(yuan)胞的長度等于自(zi)由流交通在一個單位時間內行駛的距離。元(yuan)胞長度一般(ban)選(xuan)擇為100~1000 m;

m:元(yuan)胞數,本文m=13;

λ:元胞i的車道數,本文λ=2;

ρi(t):t時刻(ke)元胞i的密度,單位(wei)是輛/km;

ρc1:流量密度關系中,車輛由自由流轉向(xiang)擁擠(ji)的臨界密度;

ρc2:流量密度(du)關系中,車輛(liang)由擁擠(ji)轉向自由流的臨界密度(du);

v:自(zi)由流(liu)速度,本文(wen)中每個元胞的自(zi)由流(liu)速度相(xiang)等,單位為km/h;

ω:擁擠波波速,單位是km/h;

ρJ:擁擠(ji)密度(du),單位是輛(liang)/km;

qmax:元胞(bao)的(de)最大通行能力(li),單位是輛/h;

Si(t):t時(shi)刻元胞i-1流向元胞i的車流量(liang),即發送(song)量(liang);

Ri(t):t時(shi)刻元胞i能夠(gou)接受的車(che)流量(liang),即接收量(liang);

fi(t):t時刻元胞(bao)i-1能夠流入元胞(bao)i的(de)實際車流量;

fi+1(t):t時刻元胞i能夠流(liu)入(ru)元胞i+1的實際(ji)車流(liu)量;

Si(t):t時(shi)刻(ke)駛出匝道車流量;

ki(t):t時刻(ke)元胞i的狀態。

2 考慮回滯(zhi)現象(xiang)的可變元胞(bao)傳輸模型(xing)

元胞傳輸模型(xing)(xing)是(shi)由(you)LWR理(li)論離散(san)并求(qiu)解該模型(xing)(xing)得(de)到(dao)的(de)(de)(de)。CTM假定流(liu)(liu)量與密度(du)服(fu)從三角形形式的(de)(de)(de)函數關系。實(shi)際上,自(zi)(zi)由(you)流(liu)(liu)區(qu)(qu)與擁擠(ji)區(qu)(qu)不是(shi)完全孤立的(de)(de)(de),兩者之間存在(zai)著相(xiang)互重疊(die)的(de)(de)(de)部分,這一(yi)區(qu)(qu)域成為亞穩態(tai)(tai)(tai)(tai)區(qu)(qu)。在(zai)該區(qu)(qu)域內,車(che)流(liu)(liu)有(you)可(ke)能處于自(zi)(zi)由(you)流(liu)(liu)狀(zhuang)(zhuang)態(tai)(tai)(tai)(tai),有(you)可(ke)能處于擁擠(ji)狀(zhuang)(zhuang)態(tai)(tai)(tai)(tai)。亞穩態(tai)(tai)(tai)(tai)區(qu)(qu)域的(de)(de)(de)存在(zai)導致了(le)(le)回(hui)滯現象(xiang)(xiang)的(de)(de)(de)發生,即(ji)自(zi)(zi)由(you)流(liu)(liu)到(dao)擁擠(ji)流(liu)(liu)相(xiang)變(bian)(bian)時(shi)的(de)(de)(de)車(che)流(liu)(liu)密度(du)往(wang)(wang)往(wang)(wang)高于擁擠(ji)流(liu)(liu)到(dao)自(zi)(zi)由(you)流(liu)(liu)相(xiang)變(bian)(bian)的(de)(de)(de)車(che)流(liu)(liu)密度(du)。本文對亞穩態(tai)(tai)(tai)(tai)區(qu)(qu)域導致的(de)(de)(de)回(hui)滯現象(xiang)(xiang)做了(le)(le)進一(yi)步的(de)(de)(de)說明。

考慮回滯現(xian)象的流量-密(mi)(mi)(mi)度關系圖(tu)中,定(ding)義(yi)ki(t)為(wei)第t個時(shi)(shi)(shi)刻(ke)元(yuan)(yuan)胞i的車流狀態。假定(ding)ki(t)=0時(shi)(shi)(shi),表示此元(yuan)(yuan)胞在此時(shi)(shi)(shi)刻(ke)處于(yu)自由流狀態。當(dang)(dang)t時(shi)(shi)(shi)刻(ke)i元(yuan)(yuan)胞的密(mi)(mi)(mi)度大于(yu)ρc2時(shi)(shi)(shi),ki(t)=1;當(dang)(dang)t時(shi)(shi)(shi)刻(ke)i元(yuan)(yuan)胞的密(mi)(mi)(mi)度小(xiao)于(yu)ρc1時(shi)(shi)(shi),ki(t)=0;否則,密(mi)(mi)(mi)度處于(yu)兩臨界密(mi)(mi)(mi)度之間時(shi)(shi)(shi),ki(t)=ki(t-1)。即(ji):

而元胞(bao)密度可以根據離散(san)化迭代公式(shi)計算(suan)得(de)到。

3 仿真流程設計

根據(ju)考慮回滯現象的(de)可變元胞傳輸模型,在(zai)Matlab環境下(xia)建立(li)交(jiao)(jiao)通流(liu)計(ji)算機仿(fang)真(zhen)流(liu)程。在(zai)仿(fang)真(zhen)中,用(yong)連接路(lu)段的(de)交(jiao)(jiao)通流(liu)量和密(mi)度來模擬路(lu)網(wang)上的(de)交(jiao)(jiao)通流(liu)狀況。在(zai)仿(fang)真(zhen)開始前根據(ju)高速公路(lu)上的(de)實測數據(ju)初始化交(jiao)(jiao)通仿(fang)真(zhen)路(lu)網(wang)所需(xu)的(de)交(jiao)(jiao)通流(liu)仿(fang)真(zhen)參數。仿(fang)真(zhen)過程主要(yao)分(fen)為流(liu)量計(ji)算、更新模塊和密(mi)度計(ji)算。

在仿(fang)真(zhen)中,利(li)用外(wai)循(xun)環(huan)(huan)仿(fang)真(zhen)一段(duan)時(shi)間(jian)(jian)的(de)(de)(de)(de)車流狀況,外(wai)循(xun)環(huan)(huan)次數(shu)為(wei)仿(fang)真(zhen)總時(shi)間(jian)(jian)與(yu)仿(fang)真(zhen)步長dt的(de)(de)(de)(de)比值取整(zheng)。在可(ke)變元胞(bao)傳輸(shu)模(mo)型(xing)中,仿(fang)真(zhen)步長dt應該取元胞(bao)長度與(yu)自由流速(su)度的(de)(de)(de)(de)比值中的(de)(de)(de)(de)最小值,這樣便(bian)可(ke)以更精確地模(mo)擬出交通流情況。在第(di)一個(ge)循(xun)環(huan)(huan)體(ti)內,考慮(lv)回滯現象的(de)(de)(de)(de)流量(liang)與(yu)密(mi)度的(de)(de)(de)(de)關系圖,根據公(gong)式計算(suan)并(bing)執行每個(ge)節(jie)點的(de)(de)(de)(de)實際流量(liang),并(bing)記錄流入(ru)每個(ge)元胞(bao)的(de)(de)(de)(de)凈流量(liang);在第(di)二個(ge)循(xun)環(huan)(huan)體(ti)內,根據LWR模(mo)型(xing)連續方程的(de)(de)(de)(de)離散化(hua)公(gong)式,執行每個(ge)連接路段(duan)的(de)(de)(de)(de)車流密(mi)度。重復執行上述兩(liang)個(ge)模(mo)塊,直(zhi)到判斷外(wai)循(xun)環(huan)(huan)結束(shu)。最后畫出流量(liang)與(yu)密(mi)度的(de)(de)(de)(de)二維、三維圖,以便(bian)進行分析(xi)。

4 仿(fang)真與結(jie)果分析(xi)

采用可變(bian)元(yuan)(yuan)胞(bao)傳輸(shu)模型進(jin)行仿真,仿真對象為36.56 km的(de)一段西(xi)安(an)高(gao)速公路(lu)(lu)。利用可變(bian)元(yuan)(yuan)胞(bao)傳輸(shu)模型的(de)原(yuan)理將此段高(gao)速公路(lu)(lu)分為由32個元(yuan)(yuan)胞(bao)組成的(de)模型,則此路(lu)(lu)段的(de)元(yuan)(yuan)胞(bao)長度的(de)集合為:

L={0.96,1.0,1.12,1.12,…,1.12,1.12,1.0}km

且第(di)19個節點處有分流匝道。其中(zhong),擁擠密度為(wei)(wei)(wei)480輛(liang)(liang)/km,自由(you)流速度為(wei)(wei)(wei)39 km/h,路段的最大通行能力為(wei)(wei)(wei)774輛(liang)(liang)/ (h·車道),分流系數為(wei)(wei)(wei)0.5,進入(ru)仿(fang)真(zhen)(zhen)路網(wang)進口的平均(jun)車流量(liang)為(wei)(wei)(wei)1200輛(liang)(liang)/h。其仿(fang)真(zhen)(zhen)結(jie)果如圖2所(suo)示。

5 結 語

本(ben)文設計(ji)的(de)(de)(de)仿(fang)真(zhen)流(liu)程是基于(yu)可(ke)變元胞(bao)傳輸模型(xing),在此基礎上模擬道路(lu)交(jiao)通(tong)分(fen)、匯流(liu)對道路(lu)交(jiao)通(tong)流(liu)的(de)(de)(de)影響。采用長度可(ke)變的(de)(de)(de)元胞(bao),并考(kao)慮回(hui)滯現象(xiang),可(ke)以更(geng)精確(que)地模擬實際的(de)(de)(de)道路(lu)交(jiao)通(tong)流(liu)現象(xiang),更(geng)接近(jin)實際,因而可(ke)以仿(fang)真(zhen)在不(bu)(bu)同(tong)(tong)交(jiao)通(tong)管(guan)(guan)理方(fang)(fang)案下(xia)主(zhu)干(gan)道交(jiao)通(tong)流(liu)的(de)(de)(de)變化和不(bu)(bu)同(tong)(tong)交(jiao)通(tong)管(guan)(guan)理方(fang)(fang)案下(xia)主(zhu)干(gan)道交(jiao)通(tong)流(liu)的(de)(de)(de)變化以及進行(xing)不(bu)(bu)同(tong)(tong)服務水平下(xia)收費站的(de)(de)(de)瓶頸效(xiao)應等交(jiao)通(tong)仿(fang)真(zhen)。

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