adams-atv实例3

AdamsTrackedVehicleToolkitTemplate-basedarchitectureTensionerSetupTutorialAugust2009MSCSoftwareSwedenABAdamsTrackedVehicleToolkitTensionerSetupTutorialMSCSoftwareSwedenAB2(8)Theinformationinthisdocumentisfurnishedforinformationaluseonly,mayberevisedfromtimetotime,andshouldnotbeconstruedasacommitmentbyMSCSoftwareSwedenAB.MSCSoftwareSwedenABassumesnoresponsibilityorliabilityforanyerrorsorinaccuraciesthatmayappearinthisdocument.Thisdocumentcontainsproprietaryandcopyrightedinformation,MSCSoftwareSwedenABpermitslicensesofAdams®TrackedVehicletoolkitsoftwaretoprintoutorcopythisdocumentforinternaluseinconnectionwiththelicensedsoftware.NopartofthisdocumentmayatanytimebecopiedforanyotherpurposeordistributedortranslatedintoanyotherlanguageordistributedtoanythirdpartywithoutthepriorwrittenpermissionofMSCSoftwareSwedenAB.Adams®isaregisteredtrademarkofMSCSoftware.Allotherproductnamesaretrademarksoftheirrespectivecompanies.Copyright2009byMSCSoftwareSwedenAB.Allrightsreserved.AdamsTrackedVehicleToolkitTensionerSetupTutorialMSCSoftwareSwedenAB3(8)AboutThisDocumentThisdocumentcontainsthetutorialsfortheATVtemplate-basedtoolkit.Usethetutorialexercisestolearnhowtousetheinterface,andhowtoexecutesimulations.Theexercisesare,whenitcomestosystemspecificcommands,writtenforWindowsplatformwherenotexplicitlystatedUNIX.AdamsTrackedVehicleToolkitTensionerSetupTutorialMSCSoftwareSwedenAB4(8)TensionerSetupProblemStatementThisexercisewillshowhowthelengthofatensionercanbeadjustedtogivethecorrecttensionerforceortracktensionforceafterastaticequilibriumanalysis.LoadATVpluginandopentankassemblyFirstyouwillloadtheAdamsTrackedVehicleToolkitpluginandopenanexistingATVassembly,tank.asy1.StartAdams/CarandselecttheStandardInterface.2.OpenthePluginManagerfromtheToolsmenu.SelectYesforLoadfortheAdamsTrackedVehicleToolkittoloadtheATVtoolkit.YoucanalsoselectYesforLoadatStartupsothatAdamsTrackedVehicleToolkitpluginwillautomaticallybeloadedinthefuturesessions.3.Opentheassemblytank.asyfromtheatv_shareddatabase(File–Open–Assembly)ModifythetensionerWewillreviewthetensionercharacteristicssetthetensionerforce1.Right-clickthelefttensionerdeviceandselectModify•Hereyoucanmodifythecharacteristicsofthetensioner(Rigid,LinearorNon-Linear)anddefinehowthetensionerdeviceshouldbesetupatstaticequilibriumanalysis•KeeptheTensionerTypeasLinearinthisexercise2.ClickontheTensionerSetupbutton•TheTensionerSetupdialogboxisdisplayedAdamsTrackedVehicleToolkitTensionerSetupTutorialMSCSoftwareSwedenAB5(8)3.IntheSetupTypeoptionmenu,switchtoTensionerForce4.Enter15000asTensionerForce•Whenwelaterstartthesimulation,asetupanalysiswillbeperformedbeforethedynamicanalysis.Thissetupanalysiswillsettheforceinthetensionerto15000N.5.ClickOKinbothdialogboxesTracksystemsetupNowitistimetosetupthevehicleforsimulationwhichincludeswrappingthetracksegmentsaroundthewheels1.FromtheATVmenu,selectTrackSystemSetup–TrackSystemWrapping2.Right-clickintheSoilPropertyFilefieldandselectSearch–atv_shared/soil.tbl3.Selectthefilemsc_0001.spf•Thisfiledefinestheroadcontactproperties•Inourcase,wewillrunonHardSoilwiththeparametersfoundintheselectedfile4.Right-clickintheRoadDataFilefieldandselectSearch–atv_shared/roads.tbl5.Selectthefileflat.rdf•Thisfiledefinesaflatroadsurface6.ClickontheTrackSystemstabandselectVehicleSymmetrytoHalfVehicle.•Halfofthevehicleisundisplayed,andthehullisautomaticallyconstrainedwithaPlanarjointintheglobalXZ-plane•Thisoptionisveryusefulforstraight-runsimulationsasitwillreducethemodelsize(numberofequations)7.ClicktheWrapbutton•Youwillnowseethetracksegmentslocatedaroundthewheels8.ClosethemessagewindowandclosethesetupdialogboxwhenthesetupiscompletedAdamsTrackedVehicleToolkitTensionerSetupTutorialMSCSoftwareSwedenAB6(8)SolversettingsAdjustthesolverparametersfordynamicanalysis1.OpentheSolverSettingsdialogboxfromtheSettingsmenu–Solver–Dynamics2.EnabletheMoreoptioninthelowerleftcorner3.Enterthefollowingparameters:Hmax=0.001Interpolate=YesClosetheSolverSettingsdialogbox.SubmitAdams/SolverfilesYouwillnowcreatetheAdams/Solverfilesthataretobeusedintheanalysislateron1.Toexecutethesimulation,selectSimulate–TrackedVehicleAnalysis–Submitfromthemenu2.IntheTrackedVehicleAnalysisdialogboxenterthefollowingparameters:AnalysisName=exercise03EndTime=0.5NumberofSteps=50ModeofSimulation=files_onlyInitialVelocity=0.0SetDEBUG/EPRINT=YesStartatEquilibrium=YesToreachagoodstaticsolution,wewillusemanualfunneling3.EnabletheSetEquilibriumParameterstoggle,andenterthefollowingparametersforthefirststaticanalysis:Error=100Maxit=100Stability=100Imbalance=100Enablethesecondstaticanalysisandenterthefollowingparameters:Error=10Maxit=100Stability=10AdamsTrackedVehicleToolkitTensionerSetupTutorialMSCSoftwareSwedenAB7(8)Imbalance=14.ClickthebuttonfortheTensionerSetup•VerifythatTensionerForceisset•Asyoucansee,youcandecidetodothesetupofthetensionersinthemodel,aswedidinthisexercise,ordirectlyintheTrackedVehicleAnalysissubmitdialogbox5.ClickOKintheTrackedVehicleAnalysisdialogbox•FilesforthesimulationwillbeexportedSubmitanalysisTheanalysiswill