Engineering with SEA.pdf

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1、EngineeringwithSEAEngineeringwithSEATanerOnsayDAIMLERCHRYSLERSEAWorkshopSAENoise&VibrationConferenceTraverseCity,May2003TanerOnsay,DaimlerChryslerChallengeforNVHinyear2003:❏COST!!!COST!!!❏NVHPerformanceNVHPerformance❏WeightWeight❏PackagingPackagingTanerOnsay,DaimlerChrysl

2、erVehicleDevelopmentProcessPROGRAMDEFINITIONDESIGN&DEVELOPMENTPRODUCTVERIFICATIONPRODUCTIONThemeContentDefinition&DesignTestAssembly“Fuzziness”inPrototype(s)AvailableDesignTotalProcessTime~3-6yearsProductionVolume~100000–1000000Vehicles/yearTanerOnsay,DaimlerChryslerSound

3、PackageEngineering:SoundPackageProblemChooseToolfortheProblem:CAE/TestModelTestEngineeringDecisionTanerOnsay,DaimlerChryslerDetailedSEAModelsDetailedSEAModelsTanerOnsay,DaimlerChryslerCoarseConceptualModels:RoofGlassW.ShieldDoorsDashTanerOnsay,DaimlerChryslerDesignSpaceDe

4、signSpace––(Air(Air--Borne):Borne):VehicleSoundPackageVehicleSoundPackage❏Carpet❏DashInsulator❏Headliner❏Seats❏Door(absorber,watershield)❏TunnelInsulator❏Engine-Hoodliner❏Engine-SideDashAbsorber❏WheelhouseInsulators❏Cowl&HingePillarInsulators❏…TanerOnsay,DaimlerChryslerEx

5、ample:AcousticAbsorptionTanerOnsay,DaimlerChryslerSEAPrediction:EffectsofAbsorptionTanerOnsay,DaimlerChryslerFutureChallenges!Cost:Software&Engineering!Usability:ModelBuildingandUpdate!Reliability:AccuracyofFirstRun.!Theory:ImprovePredictions!Statistics:VarianceEstimate!Q

6、uality:Modeling&Standardization!Education/Training