標準號：ISO 10846-3-2002
中文標準名稱：聲學和振動.彈性元件的振動-聲傳輸特性的實驗室測量.第3部分:傳輸運動用彈性支撐的動態勁度的間接測定方法
英文標準名稱：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
標準類型：Z32
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：Z32
國際標準分類號：17.140.01;17.160
適用范圍：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.