LMS-Virtual.Lab-整车NVH分析

KoenVansantProductManagerNoiseandVibrationLMSVirtual.LabNoiseandVibrationFullVehicleNVHforPowertrain2copyrightLMSInternational-2009Outline1ValueProposition2PowertrainNoiseandVibration4IntroducingTestDataintotheNVHAnalysis5SensitivityStudy/OptimizationaInput-OutputBlackBoxbContributionAnalysiscSystem-LevelNVHdInteriorCabinAcoustics3PWTNVHinFullVehicleContext3copyrightLMSInternational-2009AutomotiveMarketdemandsandIndustryChallenges
Price
FuelConsumption/EmissionLegislation
VibrationComfort/Legislation
RideandHanding
AcousticComfort/Legislation
Robustness/LifecycleWarranty
EnginePowerandTorque
BodyDesign
SafetySystems/CrashLegislation
Electronics/Light/Audio
InteriorDesign/Accessories/Ergonomics
AttractivePricing
BrandDifferentiation
InnovativeDesign
ReduceDevelopmentTimeandCosts
ReduceProductionTimeandCosts
ConformwithLegislation
BalancedPerformance:
CrashWorthiness
RideandHandling
Acoustics
FuelConsumption
Emissions
Broadportfolio(Sedans,SUVs,Coupe,smallcitycar,vans,…)+severalvariantsandfewerplatformsCustomerandLegislationDemandsIndustryChallenges4copyrightLMSInternational-2009EngineeringChallenges
AttractivePricing
BrandDifferentiation
InnovativeDesign
ReduceDevelopmentTimeandCosts
ReduceProductionTimeandCosts
ConformwithLegislation
BalancedPerformance:
CrashWorthiness
RideandHandling
Acoustics
FuelConsumption
Emissions
Broadportfolio(Sedans,SUVs,Coupe,smallcitycar,vans,…)+severalvariantsandfewerplatformsIndustryChallengesMeetPerformanceTargetswrt:
Crash
Fatigueandrobustness
Noiseandvibration
RideandhandlingExcellingin:
Fullvehicleperformance
ComponentperformanceWithaminimumof:
Emissions
Weight
CostReducecostandtimetomarket:
DesignRightFirstTimebymeansofsimulation
Frontloadtheengineeringefforts:functionalperformanceengineering
Insertreal-lifedatafromphysicaltestsintothedevelopmentprocess
Pinpointtheoriginofproblemfastandcascadetosubsystems
Workonallperformanceattributesatthesametime5copyrightLMSInternational-2009LMS,deliveringengineeringinnovationsince1980EngineeringServicesIntelligentSystemSimulationIntegratedPlatformForFunctionalPerformanceSimulationHybridEngineeringCAE&TestIntegrationMulti-channelTestingIntegratedTestLaboratory1980199020072000People&KnowledgeSystemsProcessRadicalInnovationSuperiorProductivityIntegrationTechnologyBreakthroughIndustryApplicationExpertise6copyrightLMSInternational-2009LMS,auniqueportfolioofengineeringinnovationsolutionsLMSTec.ManagerTestdatamanagementEngineeringCollaborationSimulationIntegrationinPLMLMSImagine.Lab1DsimulationsolutionLMSVirtual.Lab3DsimulationsolutionsLMSEngineeringandDeploymentServicesLMSSCADASMobile–Recorder–LabLMSTest.LabTest-basedengineeringsolutionsLMSTest.XpressAnalyzertestingsolutionsLMSSCADASMobile–Recorder–Lab7copyrightLMSInternational-2009LMSVirtual.LabValuePropositionAnintegratedenvironmentforfunctionalperformanceengineeringStructuresNVH-AcousticsDurabilityMotionOptimizationHybridSimulationEngineeringtherightproduct…Simulatereal-lifebehaviorofmechanicaldesignsRichAttributesDeliverabalancedperformanceMulti-AttributesTackletherootcausesofdesignweakspotsEngineering…AcceleratingthedevelopmentprocessAcceleratemodelcreationinaunifiedenvironmentOnemodelCaptureandautomatesimulationprocessesAutomationCombinethebestoftestingand1D/3DsimulationHybrid8copyrightLMSInternational-2009UpfrontEngineeringDetailedEngineeringRefinementEngineeringFront-loading“FunctionalEngineering”Almostallproblemsidentifiedbefore1stprotostage-presentLMSVirtual.LabValuePropositionFrontloadingfunctionalperformanceengineering%ProblemsSolvedStagesofDevelopmentProcessSource:“EnlightenedExperimentation,TheNewImperativeforInnovation”,StefanThomke,HBR,February2001PreS1S2S3S4S5S6S7S81008060402001x10x100x1000…xCostofchangeMultiplierUpperBodyChangewithSingleProtoStage1stProtoStage2ndProtoStageFront-loading“ProductionEngineering”Moreproblemsfoundinearlyprototypes-early1990’sFront-loading“Form-Fit”Moreproblemsfoundbefore1stprototype-late1990’s9copyrightLMSInternational-2009Outline1ValueProposition2PowertrainNoiseandVibration4IntroducingTestDataintotheNVHAnalysis5SensitivityStudy/OptimizationaInput-OutputBlackBoxbContributionAnalysiscSystem-LevelNVHdInteriorCabinAcoustics3PWTNVHinFullVehicleContext10copyrightLMSInternational-2009NVHEngineeringRoadLoads(CrossPower)FrequencyspectraEngineLoadsOrderSpectraVibrationsSteeringWheelSeatNoisePassenger/DriverEarSystemVibration/ForceExcitationtravelsthroughthecarstructureandinteriorresultinginVibration/NoiseResponseGoal:KeepNVHresponsewithintargetedlimits11copyrightLMSInternational-2009SystemTransferSourceReceiverSeatVibrationSPLatearsX=MechanicalStructuralAirStructureNVHEngineeringSoundPressureLevelStructuralVibrationsAccessoriesEngineinputRoadInputSteeringWheelShakeRearviewmirrorvibrationsGivenasetofexcitationsinfrequencydomain…Giventhestructuralmodelofacaroritscomponents…PredictandoptimizetheNVHPerformance12copyrightLMSInternational-2009PowertrainNoiseandVibrationSourcesExhaust•StructuralandAcousticExcitationoftheExhaustPipes/Muffler•