高寒条件下高速动车组的动力学性能分析

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1、万方数据西南交通大学硕士研究生学位论文第1

2、页AbstractW油theopeningofHarbin-Dalianhigh—speedrail，thedynamicschangesof却mEMUforlowtemperatureperformancehasbecomeaveryinterestingtopic．ThedifferenceofAlpineEMUcomparedwithordinaryEMUiSthechangesofthesuspensionparametersatlowtemperatureswhichm

3、ayleadstodramaticchangesinitsdynamicperformance．Witlltlleincreaseofoperatingspeedandsharpdeteriorationoftheextemalenvironmentsuchastemperature，rain，snow,windandotherweatherconditions，thegeneralrulesofoperatingperformanceofordinaryEMUarenotapplicableforalpineEMU．Th

4、eresearchesrelatedtoalpineEMUquitefewabroad，andiSnearlyblankindemostie．Firstly,thetrainsafeoperationshouldbeensured，andsecondlythetrainshouldhavegooddynamicsperformance，suchasgoodrunningstabilityandcurvebehaviour．TakingaKgllspeedtrainasexample，basedonthedynamicsim

5、ulationsoftwareSIMPACK，medynamicperformanceatlOWtemperatureiSanalyzedandtheinfluenceofthedsuspensionparametersunderdifferentconditionsoflowtemperatureinvestigated．Thisthesismainlyincludesthefollowingwork：(1)TheresearchstatusandprogressofthealpineEMUhomeandabroadar

6、esystematicallyanalyzed．TheanalysisisfocusedonthemainproblemsofEMUfacingincoldwinterandsolvingmeasures(Includingtheexistingsolutionsandpossiblefuturesolutions)(2)BasedonthedataoftrackingtestonHarbin—DalianlineforalpineEMU，thevibrationperformanceoverawheelturningsp

7、eriodisinvestigatedandwheelwearlaw(includingflangewear，treadwear,equivalentconicitychange)(3)TheanalysisiSfocusedonthedynamicchangescausedbythesuspensionparametersatlOWtemperatures，mainlyforthedifferenceofridecomfortandcurvebehaviour．AlpineEMUfaultconditionsthatma

8、ybeencounteredinwinterwereanalyzed，includingtheprimaryverticaldamperfailure，theanti—yawdamperfailure，airspringfailureconditionsandasideofbogiecompletelyfrozen．f4)ThroughsomeEMUtreadweardataofHarbin．Dalianlineinwinter,simulationofThedynamicchangesofthetreadwearunde

9、rdifferentspeedgardesaresimulated，andthedynamicchangesoftreadwearbeforeandafterarecompared，exploringtheimpactoftreadwearonEMUdynamicperformance．Keywords