VAOne资料.ppt

VAOne 振动声学模拟环境 1 2 ESI介绍 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 低频 中频以及高频振动声学问题分析与设计的工业标准 全球超过2000个正式用户用于振动噪声问题分析 6 VAOne主要模块 VAOne 7 Mainmodulesandextensionmodules Stress Periodic Foam Aero VibroAcoustics Squeak Rattle Developerkits BSR VAOneExtensionmodules BEMGrid DesignOptimization 高频 SEA 模块 高频段复杂结构系统级问题的快速分析 VAOne 低频 FE BEM 模块 BEM子系统 结构有限元子系统 声学有限元子系统 VAOne 中频 Hybrid 模块 中频段混合模型 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