新型摩擦式限滑差速器壳体有限元分析.pdf

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1、机床与液压Jun．2013HydromechatronicsEngineeringV0l_41No．12DOI：10．3969／j．issn．1001-3881．2013．12．022FiniteElementAnalysisforaNewFriction—basedLimited-slipDiferentialHousingHUANGXia，DINGJun，QIAOHuiliChongqingUniversityofTechnology，Chongqing400054，ChinaAbstract：Afriction。basedlim

2、ited。slipdiferentialjsusedtoensurethatthewheelsonbothsidesofthedriveaxlemoveatdiferentrotationalspeeds．ThediferentialautomaticallychangesthedistributionoftorqMebetweenthedrivewheelsdependingonroadconditionstoimprovethepas-sagecapaci~ofavehicle。Basedonthenewfriction-base

3、dlimited-slipdiferentialofimpoReddriveaxleofheavyvehicles．afiniteelementanalysisofstructurestrengthhasbeenconductedondiferentialhousingforvariousworkcases．Theresultsindicatethatthestructuralstrengthandstifnessofthediferentialhousingmeettherequirementsofvehicledrivingkin

4、ematics．Thesere—suitsalsoprovideatheoreticalbasisforanimproveddesignandstructuraloptimizationofdifer·entialhousing．Keywords：Friction-based；Limited-slipdiferential；FEM；Structuralstrengthcurrentstudyanalyzedthestructuralstrengthofadif-1．Introductionferentialhousingbasedon

5、thefiniteelementmethodunderdifferentconditionstoimprovethedesignoftheAdifferentialisanimportantcomponentofadifferentialhousingofvehicledriveaxles．driveaxleofavehicleandensuresthatwheelsonbothsidesofthedriveaxlemoveatdifferentrotation．2．Structureandworkingprincipleofthen

6、ewalspeedstomeettherequirementsofvehicletractionfriction·basedlimited-slipdiferentialkinematics．Atpresent，thetorqueofawidelyusedsymmetricstylebevelgeardifferentialisevenlydis—tributedbecauseofitslessfrictionaltorque．WheelFig．1showsthestructureofthenewfriction-sliphasasi

7、gnificantimpactonthepassagecapacitybasedlimited—slipdifferentia1．Thedifferentialhous—ofvehiclestravelingonaroadwithlowfrictioncoeffi．ingisdesignedusingabisectionmethodcenteredoncientorunequalfrictioncoefficients．Friction—basedthesphere．Thelefthousing1andtherighthousing6

8、limited—slipdifferentialhasbeenwidelyusedtoim．ofthedifferentialareintegrallyformedwithboltcon—provetheautomati