ISO 10846-3-2002 声学和振动.弹性元件的振动-声传输特性的实验室测量.第3部分:传输运动用弹性支撑的动态劲度的间接测定方法

标准号：ISO 10846-3-2002
中文标准名称：声学和振动.弹性元件的振动-声传输特性的实验室测量.第3部分:传输运动用弹性支撑的动态劲度的间接测定方法
英文标准名称：Acoustics and vibration - Laboratory measurement of vibro-acoustic transfer properties of resilient elements - Part 3: Indirect method for determination of the dynamic stiffness of resilient supports for translatory motion
标准类型：Z32
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：Z32
国际标准分类号：17.140.01;17.160
适用范围：This part of ISO 10846 specifies a method for determining the dynamic transfer stiffness for translations of resilient supports, under specific preload. The method concerns the laboratory measurements of vibration transmissibility and is called the indirect method. This method is applicable to test elements with parallel flanges (see Figure 1). Vibration isolators which are the subject of this part of ISO 10846 are those which are used to reduce the transmission of audiofrequency vibrations (structureborne sound, 20 Hz to 20 kHz) to a structure which may, for example, radiate unwanted fluidborne sound (airborne, waterbome or other). NOTE 2 In practice the size of the available test rig(s) can give restrictions for very small and for very large resilient supports. NOTE 3 Samples of continuous supports of strips and mats are included in the method. Whether or not the sample describes the behaviour of the complex system sufficiently, is the responsibility of the user of this part of ISO 10846. Measurements for translations normal and transverse to the flanges are covered in this part of ISO 10846. Annex A provides guidance for the measurement of transfer stiffnesses which include rotatory components. The method covers the frequency range from f2 up to f3. The values of f2 and f3 are determined by the test set-up and the isolator under test. Typically 20 Hz ≤f2 ≤ 50 Hz and 2 kHz ≤f3 ≤ 5 kHz. The data obtained according to the method specified in this part of ISO 10846 can be used for — product information provided by manufacturers and suppliers, — information during product development, — quality control, and — calculation of the transfer of vibration through isolators. When a resilient support has no parallel flanges, an auxiliary fixture should be included as part of the test element to arrange for parallel flanges. NOTE 2 Arrows indicate load direction.