【英文标准名称】:Householdandsimilarelectricalappliances-Testcodeforthedeterminationofairborneacousticalnoise-Part3:procedurefordeterminingandverifyingdeclarednoiseemissionvalues.
【原文标准名称】:家用和类似用途电器.测定空中传播噪声的试验规范.第3部分:测定和检验宣称噪声发出值的规程
【标准号】:NFS31-704-3-2006
【标准状态】:现行
【国别】:法国
【发布日期】:2006-09-01
【实施或试行日期】:2006-09-05
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:声学测量;发出的空气噪声;散装物料;定义;电气器具;家用电器;电气工程;排放测量;发射值;包络面法;家用设备;成批生产;数学计算;测量;空气噪声测量;噪声辐射;噪声测量;混响室法;声级;试验规范;试验值;试验;验证
【英文主题词】:
【摘要】:
【中国标准分类号】:Y60;Z32
【国际标准分类号】:17_140_20;97_030
【页数】:21P;A4
【正文语种】:其他


Product Code:SAE AIR1800
Title:Aircraft Tail Bumpers
Issuing Committee:A-5b Gears, Struts And Couplings Committee
Scope:This SAE Aerospace Information Report (AIR) covers the field of civilian, commercial and military airplanes and helicopters. This summary of tail bumper design approaches may be used by design personnel as a reference and guide for future airplanes and helicopters that require tall bumpers. Those described herein will consist of simple rub strips, structural loops with a wear surface for runway contact, retractable installations with replaceable shock absorbers and wear surfaces and complicated retractable tail landing gears with shock strut, wheels and tires. The information will be presented as a general description of the installation, its components and their functions.