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1、MultibodySystDynDOI10.1007/s11044-015-9484-5AnoveltransitionmodelforlubricatedrevolutejointsinplanarmultibodysystemsPeiLi1·WeiChen1·DeshengLi1·RufeiYu1Received:27July2014/Accepted:13October2015?SpringerScience+BusinessMediaDordrecht2015AbstractThedynamicbehaviorandthelifeofmachineriesaregreatl
2、yaffectedbylubri-catedclearancejoints,whichareinevitableinmechanicalsystems,whereasinvestigationsonlubricatedclearancejointsareverylimitedduetothedif?cultyincouplinglubricationthe-orywithdynamics.Byanalyzingthetransitionstatusandconsideringthehydrodynamiclubrication,elasto-hydrodynamiclubricat
3、ion,andpartiallubricationandcontactanoveltransitionmodelforthelubricatedclearancejointisproposedtotacklewiththetransitionbetweenthelubricationstatusesandthecontactstatus.Withthenoveltransitionmodel,weperformednumericaldynamicsimulationsbasedonaslidercrankmechanismwithalu-bricatedclearancejoint
4、.Usingthenoveltransitionmodelandtheexistedtransitionmodel(Floresmodel)innumericalsimulations,weobtainedandcompareddynamicresults,whichdemonstratethatthenoveltransitionmodelismoreaccurate,ef?cient,andfeasiblethantheFloresmodel.KeywordsLubricatedclearancejoint·Noveltransitionmodel·Dynamicanalysi
5、s·Slidercrankmechanism1IntroductionAsaninevitablefactorinanymechanicalsystems,clearancesigni?cantlyaffectsthedy-namicresponseofsystems[29]andthewearofjointswithclearance,whichusuallydeter-minestheperformanceofamechanicalsystem.Somoreandmoreresearchershavebeendevotedtoinvestigatingjointswithcle
6、aranceindynamicsystemssincethe1970s[6,38].RogerandAndrews[38]tooklubricationintoconsiderationwithvector-networkmeth-ods.Immediatelyfollowing,manymethodsandmodelsfordynamicanalysisofclearanceBW.Chenchenw@mail.xjtu.edu.cnP.Lipaddylee1991@gmail.com1KeyLaboratoryofEducationMinistryforModernDesigna
7、ndRotor-BearingSystem,Xi’anJiaotongUniversity,Xi’an,ChinaP.Lietal.jointsinplanarmechanismswereproposedorimprovedbyHaines[19,20],Ravn[37],andSoong[39].Althoughthesemethodsandmodelswereofgreatsigni?canceinpracti-calapplication,frictionand
