基于考慮構(gòu)架彈性的動力學(xué)仿真的構(gòu)架動應(yīng)力研究.pdf

1、北京交通大學(xué)碩士學(xué)位論文基于考慮構(gòu)架彈性的動力學(xué)仿真的構(gòu)架動應(yīng)力研究姓名：毛娟申請學(xué)位級別：碩士專業(yè)：車輛工程指導(dǎo)教師：李強20040301北京交通大學(xué)碩士學(xué)位論文AbstractHigh—speedvehicleisthetendencyoftherailwayintheworld，asakeycomponentofthevehicle，theperformanceofthebogieismoreandmoreimportantInv

2、ehicledynamics，thebogieisregardedasrigidbodygenerallyDuetOthetendencytowardslightweight，theelasticdeformationsofthebogiecan’tbeneglectedTheresearchontheseissuchalittlethatitisveryimportanttoknowtheelasticvibration，thedyn

3、amicstressandtheinfluenceonthedynamicsperformanceaftertheelasticprocessoftheflexiblebogieInthispapertheflexiblemodelofCW200bogieissetupwiththefinitesoftwareANSYSThefrequencyandmodeofthebogiearegottenwithmodeanalysisInSIM

4、PACKsoftware，theCW200Cardynamicsmodelisassembledwithbogie，wheelsets，carbodyandrailwayThedynamicsindexesofrigidandflexiblebogiearecalculatedandcomparedwithintegralintimefieldduringthecarpassingcurveAtlast，thedynamicloadsg

5、ainedfromSIMPACKarere—inputtedintoANSYS，andthestressanalysisoftheelasticbogieisperformedtOgetthedynamicrealstressinthekeylocationofthebogieThemethodisanewdesignmethodofbogie，whichisnotonlythejointofFEAandMBS，butalsotheco

6、uplingofrigidbodyandflexiblebodyinmultibodysystemInthiswaythevibrationandstressofbogieduringrunningCallbegottenindesignstagewithsimulationAsanewmethodtoevaluateNtiguestrengthandlifeofthebogie，itreducestheriskofrealtestan