ABAQUS connector经典用法介绍.pdf

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1、ConnectionElementsandConnectionLibraryLecture2Copyright2006ABAQUS,Inc.L2.2Overview•Introduction•DefiningConnectorElements•UnderstandingConnectorSections•UnderstandingConnectionTypes•UnderstandingConnectorLocalDirections•RotationalDegreesofFreedomatNodes•ComponentsofRela

2、tiveMotion•ConnectorLocalKinematics•SummaryofOrientationsandLocalDirectionsFlexibleMultibodySystemswithABAQUSCopyright2006ABAQUS,Inc.IntroductionCopyright2006ABAQUS,Inc.L2.4Introduction•Generalcharacteristicsofconnectorelements•Connectorelementsmodeldiscrete(point-to-po

3、int)physicalconnectionsbetweendeformableorrigidbodiesorcanbeconnectedtoground.•Example:typicalconnectionsinautomotivesuspensionsystemsStrutKnuckleAXIALTierodCYLINDRICALLINKRackandpinionControlarmJOINCYLINDRICALTypicalconnectionsinautomotivesuspensionFlexibleMultibodySys

4、temswithABAQUSCopyright2006ABAQUS,Inc.L2.5Introduction•Connectorelementshaverelativedisplacementsandrotationsthatarelocaltotheelement,whicharereferredtoascomponentsofrelativemotions(CORM).•Connectorelementsimposekinematicconstraints.Forexample:•Doorconnectedtoaframethro

5、ughahinge•Twopanelsofsheetmetalspotweldedtogether•Constantvelocityjoints•Connectorelementsmayinclude(nonlinear)force-versus-displacement(orvelocity)behaviorintheiravailablecomponentsofrelativemotion.•Example:muscleforceresistingtherotationofakneejointinacrash-testoccupa

6、ntdummymodel.•Connectorelementscanprovidecomprehensivekinematicandkineticoutputdescribingtheconnection.FlexibleMultibodySystemswithABAQUSCopyright2006ABAQUS,Inc.L2.6Introduction•Connectorelementsarefunctionallydefinedbyspecifyingtheconnectionattributes.•Connectiontypes•

7、Forexample:axial,hinge,weld,constantvelocityjoints,link,beam,etc.•LocalconnectordirectionsAXIAL•Connectorbehaviors•Uncoupledorcoupledresponse•Linearornonlinearresponse•Elasticityanddamping•Plasticity•FrictionAXIALconnectioninashockabsorbing•DamageandFailurestrutusesavar

8、ietyofconnectionbehaviors,•Stopsandlocksincludingspring,dampingandstopbehaviorsFlexibleMultibodySystemswithABA