OptimizationofInteriorLowFrequencyNoisebasedonEAPACAMethodandExperimentalVerification

OptimizationofInteriorLowFrequencyNoisebasedonEAPACAMethodandExperimentalVerification.pdf
Thepanelacousticcontributionanalysis(PACA)methodologyplaysanimportantroleinnoisecontrolofvehicleinside.Takingintoaccountthecontributionofpressurecomponenttothefieldpointsoundpressure,theenergydistributionmodelisintroducedtoimprovetheknownPACAmethodology.ThenanewEA-PACAmethodisproposedbycombiningthemeritsofenergydistributionanalysisandPACAmethodfortheacousticanalysisofvehicle.Basedontheresultsofinteriornoisetest,combinedwithstructuralmodalandacousticmodalanalysis,themechanismoflowfrequencynoisegeneratedisverified.Theacousticfieldinsidethevehicleisanalyzedusingthefiniteelementmethod.ThenacousticcontributionsofvehiclebodypanelstointernalacousticfieldareanalyzedusingtheimprovedPACAmethod.Theresultsoftheactualcartestsshowthatafteraddingthedampingmaterialonthepanelswithlargercontribution,thelow-frequencynoiseofmultiplefieldpointswaseffectivelyreduced.
作者：XIEXiaopingWANGXiyingCAOYuanlongLIYangWANGChenhui
作者单位：HunanUniversity
母体文献：2018中国汽车工程学会年会论文集
会议名称：2018中国汽车工程学会年会  
会议时间：2018年11月1日
会议地点：上海
主办单位：中国汽车工程学会
语种：chi
分类号：
关键词：modaltest  energydistributionmodel  panelacousticcontributionanalysis  dampingmaterial  experimentalverification
在线出版日期：2021年9月26日
基金项目：
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OptimizationofInteriorLowFrequencyNoisebasedonEAPACAMethodandExperimentalVerification.pdf

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