VAOne資料.ppt

VAOne 振動聲學模擬環(huán)境 1 2 ESI介紹 PAM CRASH PAM SHOCK SYSWELD PAM FORM PAM STAMP PAM CEM PAM SAFE ProCAST H Model CFD ACE VAOne PAM FLOW Whatsoftwaredowedevelop Oneoftheworld sleadingprovidersofengineeringsoftware PAM CRASH PAM SHOCK SYSWELD PAM FORM PAM STAMP PAM CEM PAM SAFE ProCAST H Model CFD ACE VAOne PAM FLOW Whatsoftwaredowedevelop Oneoftheworld sleadingprovidersofengineeringsoftware WhatisVAOne 低頻 中頻以及高頻振動聲學問題分析與設計的工業(yè)標準 全球超過2000個正式用戶用于振動噪聲問題分析 6 VAOne主要模塊 VAOne 7 Mainmodulesandextensionmodules Stress Periodic Foam Aero VibroAcoustics Squeak Rattle Developerkits BSR VAOneExtensionmodules BEMGrid DesignOptimization 高頻 SEA 模塊 高頻段復雜結構系統(tǒng)級問題的快速分析 VAOne 低頻 FE BEM 模塊 BEM子系統(tǒng) 結構有限元子系統(tǒng) 聲學有限元子系統(tǒng) VAOne 中頻 Hybrid 模塊 中頻段混合模型 VAOne MainExtensionmodules VAOne QuickscriptMatlabtoolboxC C developerskit StressModule FoamModule PeriodicModule Useforcustomizationandproductivityenhancements Useforfailureanalysis UseforadvancedSEAmodels UseforadvancedFoam Fibermodels ExampleSEAmodels TypicalVAOneaircraftmodels UseVAOneforinteriornoisemodelingand soundpackage design BoeingVAOneSEAmodelIllustrationfromE Davis NoiseCon2004 RayethonVAOneSEAmodelIllustrationfromIDandaroyetal NOISECON2004 VAOneaircraftcustomers Boeing Airbus EADS Embraer Bombardier Cessna Hawker Beechcraft NASAandmanyothers ExampleSEAmodels TypicalVAOneautomotivemodel ExternalSourcesTiresChassisEngineSuspensionPowerTrainWindNoise AcousticSystemFloorSystemDashInsulatorHeadlinerDampingSystemSealersHoodBlanketOuterDashFenderShieldsWheelWellInsulators UseVAOneforinteriornoisemodelingand soundpackage design VAOneautomotivecustomers GM FordNissan Honda Mazda Hyundai VW Porsche Audi Mercedes PSA Renaultandmanyothers ExampleSEAmodels TypicalVAOnemarinemodels UseVAOneforshipboardandunderwaterradiatednoisemodeling ExampleSEAmodels TypicalVAOnespacecraftmodels UseVAOneforpredictionofenvironmentsinlaunchvehiclesandspacecraftandpredictionofresponseduetorandomvibro acousticenvironments VAOnespacecustomers NASA Lockheed Boeing Northrop EADSCASA ESAandmanyothers Lowfrequency FE BEM modules ModelboundedorunboundedfluidswithBEM WorkwithFEstructuralsubsystems ModelboundedfluidswithFE VAOne Lowfrequency FEstructure WorkwithFEstructuralsubsystems VAOne FEstructure Examplemodels Lowfrequency FEcavity ModelboundedfluidswithFE VAOne FEcavity Examplemodels Lowfrequency BEM module ModelboundedorunboundedfluidswithBEM VAOne BEM Examplemodels 1e3 1e4 1e5 1e6 1e0 1e1 1e2 1e3 1e4 Numberofnodes CPUtime s StandardBEM FMMBEM TypicalBEMsolvetimevs dofs FastMultipoleBEM UseofFMMBEMtodefineexteriorloadsinafullvehicleSEAmodel EnhancedFMMBEMconvergence Residual Iteration VAOne2011 VAOne2012 EnhancementstoiterativesolverandILUTpreconditionerinFMMBEMsolver Significantspeedupsinsolvetime particularlyforindirectFMMBEMmodels NeedtogetpermissionfromCATtoshowthisimageandslide StandardBEMfaster 30 VAOne2012NewdefaultsettingthatautomaticallyadaptsthenumberofintegrationpointsthatareusedwhenevaluatingtheBEMintegralsateachfrequency Typicallyresultsin30 fastersolves andnegligiblechangeinresults VAOne2012NumberofintegrationpointsthatareusedwhenevaluatingtheBEMintegralsisfixedatallfrequencies Midfrequency Hybrid module CoupleFEandSEAt