ANSI/SAE J1637-1993 支撑钢棒上的器材的组合振动阻尼性能的实验室测量

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【英文标准名称】:LaboratoryMeasurementofTheCompositeVibrationDampingPropertiesofMaterialsonaSupportingSteelBar
【原文标准名称】:支撑钢棒上的器材的组合振动阻尼性能的实验室测量
【标准号】:ANSI/SAEJ1637-1993
【标准状态】:现行
【国别】:美国
【发布日期】:1993-02
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:buildingacoustics;materials;construction;vibrationdamping;measuringtechniques
【摘要】:ThisSAERecommendedPracticedescribesalaboratorytestprocedureformeasuringthevibrationdampingperformanceofasystemconsistingofadampingmaterialbondedtoavibratingcantileveredsteelbar.ThebarisoftencalledtheOberstbar(namedafterDr.H.Oberst)andthetestmethodisoftencalledtheOberstBarTestMethod.Materialsfordampingtreatmentsmayincludehomogeneousmaterials,nonhomogeneousmaterials,oracombinationofhomogeneous,nonhomogeneous,and/orinelastic(suchasaluminumfoil)materials.Thesematerialsarecommonlyinstalledintransportationsystemssuchasgroundvehicles,marineproducts,andaircrafttoreducevibrationatresonance,andthusreducethenoiseradiationfromthevibratingsurface.however,thetestmethoddescribedhereinwasdevelopedtorankordermaterialsusedinPASSENGERVEHICLEAPPLICATIONSwithsteelsheetmetalandmaynotbefullyapplicabletoothersituations.Dampingperformanceformostmaterialsandsystemsvariesasafunctionofbothfrequencyandtemperature.Accordingly,thistestprocedureincludesprovisionsformeasuringdampingoverarangeoffrequenciesandtemperaturesfoundapplicabletomanytransportationsystems.Themeasureddampingperformancewillbeexpressedintermsofcompositelossfactor,,withinthefrequencyrangeofapproximately100to1000Hz,andovertheusefultemperaturerangeforthegivenapplication.Thetermcompositereferstothesteelanddampingmaterialcombination.ThetestproceduredescribedhereisbasedonthemethoddescribedinASTME756.However,thisSAEdocumentdiffersfromtheASTME756methodinthattheSAEpracticespecifiesthebarmaterial,thebarsize,andthemountingconditionsofthetestsamples.Thisdocumentprovidesameansofrankorderingdampingmaterialsaccordingtotheircompositelossfactorvaluesfromtestsamplesthatrepresenttypicalpassengervehicleapplications.TheASTME756shouldbefollowedtodeterminethedampingpropertiesofmaterialsalone,includinglossfactor,YoungsmodulusE,andshearmodulusG.
【中国标准分类号】:Z32
【国际标准分类号】:
【页数】:
【正文语种】:英语