CAE driven Vehicle Structure Layout Process

November7,2007CAEdrivenVehicleStructureLayoutProcessForVehicleDesign–ToImprovetheEarlyVehicleAttributeAssessmentsA.Hänschke,RalfNientiedt1stEUROPEANHYPERWORKSTECHNOLOGYCONFERENCE23.–24.October,2007Berlin,GermanyNovember7,2007Agenda•CurrentConcernsinConceptModelWork•DefinitionofConceptModelling•MajorComponentsoftheParametricGeometryandtheModularCAEKnowledgebase
MorphingTechnologies
ConceptBodyStructureLibrary
TheModularCAEModel•MethodDevelopmentforFutureImprovementsoftheKnowledgeDatabase•Conclusions•Q&AParametricModelKnowledgebaseNovember7,2007CurrentConcernsinConceptModelWork•Typically,alargenumberofvehiclealternativesneedtobeinvestigatedintheearlyvehicledesignphase•Themostcriticalvehicleconceptdecisionshavetobefixed•3DCADdata–requiredforCAEattributeassessments–havetobecreatedbasedonthislimitedinput•ConventionalCAD/CAEtakesalongtimeanddoesnotallowtorunoptimizationsupfrontParametricModelKnowledgebaseNovember7,2007DefinitionofConceptModellingThemajorblocksofConceptModelsandInputStreamstoCreatetheModelsParametricModelKnowledgebaseConceptModelsmathematical/mechanic.representationofsystemgeometricrepresentationofsystemNovember7,2007DefinitionofConceptModellingOverviewofSimplifiedCAESimulationModels-SafetyParametricModelKnowledgebaseNovember7,2007TheMorphingTechnologies–FirstPartoftheKnowledgebase•LocalmorphingviadomainsandhandlesParametricMorphingModels–Example:AlteringthedistancedimensionofasilencerboxParametricModelKnowledgebaseNovember7,2007TheMorphingTechnologies–FirstPartoftheKnowledgebase•LocalmorphingviadomainsandhandlesParametricMorphingModels–Example:MorphingtheexhaustmanifoldviatranslateParametricModelKnowledgebaseNovember7,2007TheMorphingTechnologies–FirstPartoftheKnowledgebase•MorphvolumesParametricMorphingModels–Example:Undeformedanddeformedrearsuspension(leftview)ParametricModelKnowledgebaseNovember7,2007TheMorphingTechnologies–FirstPartoftheKnowledgebase•MaptoGeometryParametricMorphingModels–Example:Mappingwithlinedifferenceforgettingalowerroof)ParametricModelKnowledgebaseNovember7,2007TheConceptBodyStructureLibrary–SecondPartoftheKnowledgebaseParametricGeometryModel–ExampleShrinkingofRockerSectionParametricModelKnowledgebasea)b)November7,2007TheConceptBodyStructureLibrary–SecondPartoftheKnowledgebaseModulesoftheConceptBodyStructureLibrary,SubAssemblyandAssemblylevelParametricModelKnowledgebaseNovember7,2007TheConceptBodyStructureLibrary–SecondPartoftheKnowledgebaseComponentAssembly–FrontEnd,Floor,RearEndParametricModelKnowledgebaseMappingAreas(lines)November7,2007TheConceptBodyStructureLibrary–SecondPartoftheKnowledgebaseComponentAssembly–PlatformandTopHatStructureParametricModelKnowledgebaseMappingAreas(lines)PlatformComponents&TopHatStructurePlatformComponentsRearStructureNovember7,2007TheModularCAEComponentModels–ThirdPartoftheKnowledgebaseExample•GeneralMethodforCAE(Safety,NVH,…)•ModelSeparationtoComponentsandStructureParts•NoSpecificTechniqueforModelSimplification•MethodSuitabletoSupportCarLineDevelopmentWorkinallDevelopmentPhases•SolverorPreProcessorwithPreCompilecapabilitynecessary(i.e.RadiossorNastranwithincludefiletechniqueorinteractivePreProcessor,Hyperworks)ParametricModelKnowledgebaseNovember7,2007TheModularCAEComponentModels–ThirdPartoftheKnowledgebaseOverviewofSafetyCAEDataBaseParametricModelKnowledgebase(ModelBuildafterSelectingtherequiredModelContent)LMV_BIWDashboard_RHD/LHDBodyInPrimeFrontDoorsRearDoorsDoorTrimsBodyClosuresLoudspeakerFrontBumperBeamRearBumperBeamFrontBumperFaciaBodyExteriourRearBumperFaciaGORCockpitStructureHVACInteriourTrimBodyInteriourIP-AssemblyFrontSeatsRearSeatsFrontSubframeRearSubframeFrontStrut&KnuckleChassisSteeringColumnSteeringGearPedalBox&BoosterTire&WheelsABSModulFuelSystemLynx/MTX75DW10/MMT6DW10/AWF21PowertrainDW12/MMT6I4/MTX75I4/CFT23I5/PowertrainMountsCoolingPackExhaustSystemBatterieElectricBoxesElectricalFE_SolverRadiossLoadCasesSafetyPreProcessPostProcessBarriersDummiesWindowRegulatorHoodLiftgateHingesHeadlamps/FogLampBatterieBracketsSAV_BIW1000500Energy(ModelBuildafterSelectingtherequiredModelContent)LMV_BIWDashboard_RHD/LHDBodyInPrimeFrontDoorsRearDoorsDoorTrimsBodyClosuresLoudspeakerFrontBumperBeamRearBumperBeamFrontBumperFaciaBodyExteriourRearBumperFaciaGORCockpitStructureHVACInteriourTrimBodyInteriourIP-AssemblyFrontSeatsRearSeatsFrontSubframeRearSubframeFrontStrut&KnuckleChassisSteeringColumnSteeringGearPedalBox&BoosterTire&WheelsABSModulFuelSystemLynx/MTX75DW10/MMT6DW10/AWF21PowertrainDW12/MMT6I4/MTX75I4/CFT23I5/PowertrainMountsCoolingPackExhaustSystemBatterieElectricBoxesElectricalFE_SolverRadiossLoadCasesSafetyPreProcessPostProcessBarriersDummiesWindowRegulatorHoodLiftgateHingesHeadlamps/FogLampBatterieBracketsSAV_BIW1000500Energy(ModelBuildafterSelectingtherequiredModelContent)LMV_BIWDashboard_RHD/LHDBodyInPrimeFrontDoorsRearDoorsDoorTrimsBodyClosuresLoudspeakerFrontBumperBeamRearBumperBeamFrontBumperFaciaBodyExteriourRearBumperFaciaGORCockpitStructureHVACInteriourTrimBodyInteriourIP-AssemblyFrontSeatsRearSeatsFrontSubframeRearSubframeF