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1、HowtomodelaMcPhersonSuspension1.GeneralThebasiccomponentofallautomotivemodelsisitssuspension.Thisguideshowshowtoset-upthemostclassicalfrontsuspensionsystemofapassengercar.Itgivesageneraloverviewaboutthetopologyofsuspensionmodelsandcanbeusedasafundamen
2、talmodelforyourfurtherwork.Themodelcanbefurtherextendedorparameterisedforuseinvariousdifferentapplications.PleasenotethatintheAutomotive+databaseafullyparameterisedmodeloftheMcPhersonsuspensionisavailablealongwithmanyotherstandardsuspensions.2.Additio
3、nalFeaturesDuringthemodelset-upitwillalsobeshown,howtoperformequilibriumcalculationsandeigenvaluecalculationsaswellashowtoanimatethemodeshapes.3.CreatinganExampleModel3.1.ConceptThemodelisasimplemodeltoallowyoutounderstandthetopologyandtheconceptsinSI
4、MPACK.Designingsuspensionsystemsisacomplicatedprocessduetotheclosedloopsinvolved.It’sveryimportanttoconsiderthetopologyofthesystembeforestartingtobuild-upthemodelinSIMPACK.Youshouldbuild-upthemodelstep-by-step.Definethebodiesfirstandthenconnectthemtog
5、etherinachain.Finallyclosetheloops.Forceelementswillbedefinedfirstwithconstantcharacteristicsbutlateronyoucandefinenon-linearcharacteristicsusinginputfunctionsforyourownmodels.INTECGmbH,ArgelsriederFeld13,D-82234Wessling,Tel.0049815392880,Fax498153928
6、811,E-Mailintec@simpack.de,Seite13.2.Modelling3.2.1TrytoseparateaMcPhersonsuspensionintorigidbodies.Determinehowthebodiesaretobeconnectedtogetherincludinghowmanydegreesoffreedomtheyhaveandwhatforcesactbetweenthem.WerecommendwhenworkingwithSIMPACKtofir
7、stcreatethetopologyofthemodeltohelpyouunderstandhowyourmodelistogotogether.Lookatthetopologyoftheintendedmodelwiththeexplanationofthesymbolsused.springgzx,y,zzdamper_upperdamper_upperdamper_lower0DOFspringdamper_lowerdamper?damperx,y,zwheelchassis?,?s
8、teering_rodwheel_plateJoints:armwheel?Constraints?,?:,?tyrezzForcearmElements:chassistyre3.2.2Defineanewmodelandstartthemodelsetupwindow,usingtheiconsabove.INTECGmbH,ArgelsriederFeld13,D-82234Wessling,Tel.0049815392880,Fax498153928811,E-Mailin
