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ID:17683386
大小:16.54 MB
页数:78页
时间:2018-09-04
《不同角度沟槽橡胶阻尼垫片对摩擦系统自激振动的影响研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、TH117621ClassifiedIndex:TH117U.D.C:621SouthwestJiaotongUniversityMasterDegreeThesisTHEINFLUNENCEOFDIFFERENTANGLEDGROOVED-STRUCTUREDAMPINGCOMPONENTSONFRICTION-INDUCEDVIBRATIONGrade:2015Candidate:ZhangQiAcademicDegreeAppliedfor:MasterDegreeSpeciality:MechanicalEngineeringSup
2、ervisor:Asso.Prof.ZhaojingMay,2018Istick-slip1.ABAQUS2.II3.122Hz45454.ABAQUS455.stick-slipstick-slipstick-slip-45IIIAbstractWiththerapiddevelopmentofmoderntransportation,humanstandardsandrequirementsforallaspectsofcomfortarealsoincreasing.Thefriction-inducedvibrationandeve
3、nsquealnoisegeneratedduringthebrakingprocessofthevehiclewillgreatlyreducecomfort,andinfluencethephysicalandmentalhealthoftheoccupants.Howtosuppressthefriction-inducedvibrationgeneratedduringthebrakingprocessistheultimategoalpursuedbymanufacturersandresearchers.Dampingcompo
4、nentswithstructuralchangehavebeenappliedtodiscbrakesofsomecommontransportation,butthemechanismoftheinfluenceonfriction-inducedvibrationisstillambiguousatpresent.Differentarrangementofgroovedstructuresweredesignedandmanufacturedonthedampingcomponents,andtheinfluencemechanis
5、mofelasticdampingcomponentswithdifferent-angledgroovedstructuresonvibrationperformanceandtribologicalcharacteristicswasstudied.Thisworkisinnovatoryandofgreatengineeringapplicationvalue.Itisofgreatsignificancetoexploremethodsforsuppressingfriction-inducedvibrationofdiscbrak
6、es.Inthisstudy,anexperimentalsetupwhichiscapableofsimulatingdifferentbrakingconditionsofdiscbrakeswasdesignedandbuilt.Thetribologicaltestsunderdifferentbrakingpressureanddiscrotationalspeedwerecarriedoutontheexperimentalsetup,andtheinfluencemechanismofdifferenttestparamete
7、rsonfriction-inducedvibrationwasexploredbycombiningthefiniteelementmethod.Furthermore,thedampingcomponentswithdifferent-angledgroovedstructuresweredesignedandaddedintothefrictionsystemtoinvestigateitseffectonfriction-inducedvibrationandinterfacetribologicalproperties.Theme
8、chanismofhowthedampingcomponentswithdifferentstructuressuppressfriction-inducedvibrationw
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