基于MSCADAMS柔性体的汽车制动器振动分析研究

2003MSC.SoftwareMSC.ADAMS-1-2003MSC.SoftwareMSC.ADAMSTheAnalysisofAutomobileBrakeVibrationBasedonMSC.ADAMSFlexibleMethodsMSC.ADAMSMACROIMPACTSTEP:MSC.ADAMSAbstract:ThenoiseresultfromBrakeVibrationhasbecomeadifficultresearchtaskforAutomobile.Inthisthesis,ItisusedMulti-bodyDynamicsSimulationSoftware-MSC.ADMAS-toanalysistheMotionFeatureofDiskBrake.ThisModelincludeonerigidbodyandthreeFlexiblebodies,amongwhich,therotaryrotorandtranslationpadareFlexiblebodies.Firstly,itisusedMACROtomakeMulti-dummypartbefixedononediskcircumferenceatonetime,Secondly,onemethodofputtingcontactforcesonbodiesisdevelopedbyusingIMPACTandSTEPFunction,andthecontactamongdiscreteFlexiblebodiesbecomeconsecutivecontactthoughnodeforcesondummyparts.Usingthismodelbuiltabove,WecanspeculatethefrequencyofdesignedBrakeVibration.WecanconcludethattheprimaryvibrationisLowFrequencyandjudderwhenbrakingKeywords:MSC.ADAMSFlexiblebrakevibration1-2-2003MSC.SoftwareMSC.ADAMSMSC.ADAMS22.12.2quppφ=pφ--q(Mii•••=1))(qX,,Ψ=ξ(zyxX,,=)-3-2003MSC.Software()φθψψ,,={TMqqqq,,,21⋅⋅⋅=}0=−∂Ψ∂+∂Θ∂+∂∂−∂∂QLLdtdTλξξξξ&&10=Ψ--LΘ--Ψ-λ--Q-10=puΘ0=MSC.ADAMS12.3MSC.ADAMS139248960MSC.ADMASBushingx,y,zBushingx,yzrevolutez-4-2003MSC.Software[6]IMPACTSTEPSTEPIMPACTspheretoplanemacroMACROIMPACTSTEP3-5-2003MSC.Software4MSC.ADAMS5[1]J.FLINTetal.,Lining-deformation-inducedModalCouplingasSquealGeneratorinaDistributedParameterDiscBrakeModel,JournalofSoundandVibration2002,254(1)[2]KangBongsu,AnAnalyticalStudyofVibrationandInstabilityofAutomotiveDiscBrake,PhDthesis,WAYNESTATEUNIVERSITY,2000[3]DavidC.Riesland,VirtualPrototypingBrakeSystemsUsingADAMS,1998UserConference,1998[4]AnthonyGuginoetal,BrakeMoanSimulationusingFlexibleMethodsinMultibody-6-2003MSC.SoftwareDynamics,SAEPaper2000-01-2769,2000[5]JohnJ.Xu,DiscBrakeLowFrequencyCreepGroanSimulationUsingADAMS,2000ADAMSInternationalUserConference,2000[6]RichardSwift,FlexibleBodyContactforModelingSquealinBrakingSystems2002MDINorthAmericanUsersConference2002[7]LixinZhangetal,BrakeRoughnessSimulationUsingADAMS,2002MDINorthAmericanUsersConference2002[8]ADAMSUsersReferenceManual[M]MDI,2001-7-