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1、摘要我國高速鐵路進(jìn)入快速發(fā)展時(shí)期,確保高速動車組安全高效運(yùn)行,是一項(xiàng)重要的研究工作.系統(tǒng)仿真是一種以計(jì)算機(jī)和仿真系統(tǒng)軟件為工具,對現(xiàn)實(shí)系統(tǒng)或未來系統(tǒng)進(jìn)行動態(tài)試驗(yàn)研究的理論方法,依據(jù)高速列車運(yùn)行仿真視景系統(tǒng)的設(shè)計(jì)要求,建立模擬高速列車運(yùn)行的數(shù)學(xué)模型,構(gòu)建對象的三維模型,再現(xiàn)列車運(yùn)行狀態(tài)的真實(shí)效果,顯示觀、經(jīng)濟(jì)、安全、實(shí)驗(yàn)周期短等優(yōu)點(diǎn).本文建立了單輪對的動力學(xué)方程并求其數(shù)值解,基于oPENGL、VegaPrime開發(fā)了高速列車輪軌關(guān)系三維動態(tài)模擬系統(tǒng),將輪軌的接觸形態(tài)以三維視景的形式展示,模擬出列車輪對的運(yùn)動情況,有一定的理論和現(xiàn)實(shí)意義.本文共五章,第一章
2、介紹高速列車輪軌系統(tǒng)的基本概念及輪軌滾動接觸理論和空問輪軌接觸幾何關(guān)系,第二章介紹輪軌滾動接觸理論和空問輪軌接觸幾何關(guān)系,設(shè)計(jì)跡線法的程序?qū)崿F(xiàn)流程,第三章對單輪對在直線軌道上的運(yùn)動建立非線性動力學(xué)方程并計(jì)算,展示出輪軌非線性作用關(guān)系的形態(tài)特征.第四章設(shè)計(jì)三維輪軌幾何接觸計(jì)算程序contact并結(jié)合三維視景程序的結(jié)果計(jì)算單輪對運(yùn)動的微分方程.第五章利用更完善的虛擬現(xiàn)實(shí)技術(shù)開發(fā)高速列車輪軌關(guān)系三維動態(tài)模擬系統(tǒng),顯示直觀的輪軌接觸計(jì)算機(jī)三維視景效果.最后總結(jié)論文內(nèi)容并展望有待繼續(xù)解決的問題.關(guān)鍵詞高速列車動力學(xué),輪軌關(guān)系,非線性分析,視景仿真,虛擬現(xiàn)實(shí)Abs
3、tractTheHi曲.speedrailway’SdevelopmentinChinahasenteredallrapidperiod,toensureHighSpeedEMUsafetyande伍cientoperationisanimportantresearchwork,Simulationisallapproachwhichusecomputersandsoftwaretools,tosimulateorforecastthefutureofrealdynamicsystem.basedonhigh-speed仃alnoperat]onsim
4、ulationvisualsystemdesign’Srequirements.theestablishmentofhigh-speedtrainoperationsimulationmodelconstructThree.dimensionalobjectmodel.reproducethetrueeffectofthetrainrunning,showsvisual,economic,security,andhastheadvantageofshortexperimentalperiod.Thispaperestablishedasingle.wh
5、eeldynamicequationsandfinditsnumericalsolution.developedahigh.speed仃aintllree.dimensionaldynamicsimulationsystembetweenwheelandrailbasedon0PENGL.VegaPrime.thewheel.railcontactsituationhasbeendisplayedbytheformofthree.dimension,Simulatethemovementofthetrainwheel,hasacertaintheore
6、ticalandpracticalsignificance.ThisPaperisconsistingoffivechapters.Thefirstchapterintroduceshigh.speedtrainwheelandrailsystem.thebasicconceptsandrollingcontacttheoryandspatialrelationshipbetweenwheel.railcontactgeometry.thesecondchapteriSdevotedtorollingcontacttheoryofwheel—railc
7、ontactgeometryandspatialrelations.designtrace-lineprogramimplementationprocession.thethirdchapterestablishasinglewheel‘Snonlineardynamicequationsofmotioninastraightline,andcalculate.showingtherelationshipbetweenwheelandrailmorphologicalcharacteristiesofthenonlinearinteraction.Ch
8、apterfourdesignthree.dimensionalwheel.railconta