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基于参数化的钢板弹簧悬架系统运动仿真 Abstract Thesuspensionsystemofavehicleisanimportantcomponentthatdetermineshowthevehiclehandlesandrides.Inthispaper,wepresentastudyonthemotionsimulationofasteelplatespringsuspensionsystem.Byusingtheparameterizationmethod,weareabletoinvestigatetheeffectsofvariousdesignparametersonthedynamicperformanceofthesystem.Ourresultsprovideinsightsintohowtooptimizethesuspensionsystemforimprovedridecomfortandhandling. Introduction Thesuspensionsystemofavehicleisdesignedtodampenvibrationsandbumpswhileprovidingthenecessarysupportforthevehicle'sweight.Springsareafundamentalcomponentofthesuspensionsystemthatareresponsibleforabsorbinganddissipatingthekineticenergyfromthevehicle'sverticalmotion.Ingeneral,thesteelplatespringsuspensionsystemiscommonlyusedinheavy-dutyvehiclessuchastrucksandbusesduetotheirrobustnessandcost-effectiveness.However,theperformanceofsuchsystemsishighlydependentonvariousdesignfactors,includingspringstiffness,dampingratio,andtheshapeofthespringcurve.Therefore,itiscrucialtooptimizethesuspensionsystemdesignforimprovedridecomfortandhandling. Inthisstudy,wedevelopamotionsimulationmodelforasteelplatespringsuspensionsystem.Weparameterizethedesignfactorsandinvestigatetheeffectsofeachparameterontheoveralldynamicperformanceofthesystem.Ourresultsshowhowchangesintheseparameterscanimpactthefrequencyresponseandoverallridecomfortofthesystem. Methodology Wedevelopa3DmodelofthesteelplatespringsuspensionsysteminMSCAdamssoftware.Themodelconsistsofasprungmass,anunsprungmass,andasteelplatespring.Weparameterizethedesignfactorsincludingspringstiffness,dampingratio,anddesigncurveshape.Thesimulationmodelissubjectedtoaharmonicdisturbanceforce,andtheresponseisrecordedoverafrequencyrange. WeusetheFourierTransformtoanalyzethefrequencyresponseofthesystemunderdifferentparametersettings.Then,weusetheRideEvaluationmethodtoevaluatetheridecomfortofthesystem. Results Oursimulationresultsshowthatthestiffnessofthesteelplatespringhasasignificantimpactonthedynamicresponseofthesystem.