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【英文标准名称】:Acousticsandvibration-Laboratorymeasurementofvibro-acoustictransferpropertiesofresilientelements-Part2:Directmethodfordeterminationofthedynamicstiffnessofresilientsupportsfortranslatorymotion
【原文标准名称】:声学和振动.弹性元件的振动-声传输特性的实验室测量.第2部分:传输运动用弹性支撑动态劲度的测定用直接法
【标准号】:ISO10846-2-2008
【标准状态】:现行
【国别】:国际
【发布日期】:2008-08
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC43
【标准类型】:()
【标准水平】:()
【中文主题词】:声学测量;声学;结构运载噪声的衰减;定义;动态的;发动机消音器;频率;频率范围;绝缘子;实验室试验;测量;测量技术;机械性能;能听度范围;弹性构件;噪声衰减;噪声隔音材料;隔音;硬挺度;结构噪声;传递;振动传递;传输;振动;阻振器;振动衰减;振动工程;防振;振动特性
【英文主题词】:Acousticmeasurement;Acoustics;Dampingofstructure-bornenoise;Definitions;Dynamic;Enginesilencers;Frequencies;Frequencyranges;Insulators;Laboratorytesting;Measurement;Measuringtechniques;Mechanicalproperties;Rangeofaudibility;Resilientelements;Soundattenuation;Sounddeadening;Soundinsulation;Stiffness;Structure-bornenoise;Transfer;Transferofvibrations;Transmission;Vibration;Vibrationdampers;Vibrationdamping;Vibrationengineering;Vibrationinsulation;Vibrationalbehaviour
【摘要】:ThispartofISO10846specifiesamethodfordeterminingthedynamictransferstiffnessfortranslationsofresilientsupports,underspecifiedpreload.Themethodconcernsthelaboratorymeasurementofvibrationsontheinputsideandblockingoutputforcesandiscalled"thedirectmethod".Themethodisapplicabletotestelementswithparallelflanges(seeFigure1).Resilientelements,whicharethesubjectofthispartofISO10846,arethosewhichareusedtoreducethetransmissionofvibrationinthelowerpartoftheaudiblefrequencyrange(typically20Hzto500Hz)toastructurewhichmay,forexample,radiateunwantedfluid-bornesound(airborne,waterborneorothers),and--thetransmissionofIow-frequencyvibrations(typically1Hzto80Hz),whichmay,forexample,actuponhumansubjectsorcausedamagetostructuresofanysizewhenvibrationistoosevere.NOTE1Inpractice,thesizeoftheavailabletestrig(s)canrestricttheuseofverysmallorverylargeresilientsupports.NOTE2Samplesofcontinuoussupportsofstripsandmatsareincludedinthismethod.WhetherornotthesampledescribesthebehaviourofthecomplexsystemsufficientlyistheresponsibilityoftheuserofthispartofISO10846.MeasurementsfortranslationsnormalandtransversetotheflangesarecoveredinthispartofISO10846.Thedirectmethodcoversthefrequencyrangefrom1Hzuptoafrequency./uL,whichisusuallydeterminedbythetestrig.NOTE3Becauseofthelargevarietyoftestrigsandtestelements,./'ULisvariable.InthispartofISO10846,theadequacyofthetestrigisnotdefinedforafixedfrequencyrange,butonthebasisofmeasureddata,asdescribedin6.1to6.4.
【中国标准分类号】:Z32
【国际标准分类号】:17_140_01
【页数】:28P;A4
【正文语种】:英语