标准摘要
[中文适用范围]： 本部分 IEC 60068 展示了试样在承受规定的随机振动测试要求时，能够抵抗动态载荷而不导致其功能和/或结构完整性不可接受的退化。宽带随机振动可用于识别累积应力效应以及由此产生的机械弱点和指定性能的退化。这些信息与相关规范一起，可用于评估试样的可接受性。本标准适用于可能受到运输或操作环境（例如飞机、航天器和陆地车辆中）产生的随机振动影响的试样。它主要用于未包装的试样，以及当运输容器可视为试样本身一部分时的运输容器中的物品。然而，如果物品是包装的，则物品本身被称为产品，物品及其包装一起被称为测试试样。本标准可与 IEC 60068-2-47:2005 一起使用，用于测试包装产品。如果试样受到运输或实际环境（例如飞机、航天器和运输容器中的物品）产生的随机和确定性振动的组合影响，纯随机测试可能不足。参见 IEC 60068-3-8:2003 以估计试样的动态振动环境，并基于此选择适当的测试方法。虽然主要用于电工试样，但本标准不仅限于此，也可用于其他所需的领域（参见附录 A）。 [外文原描述]： IEC 60068-2-64:2008+A1:2019 demonstrates the adequacy of specimens to resist dynamic loads without unacceptable degradation of its functional and/or structural integrity when subjected to the specified random vibration test requirements. Broadband random vibration may be used to identify accumulated stress effects and the resulting mechanical weakness and degradation in the specified performance. This information, in conjunction with the relevant specification, may be used to assess the acceptability of specimens. This standard is applicable to specimens which may be subjected to vibration of a stochastic nature resulting from transportation or operational environments, for example in aircraft, space vehicles and land vehicles. It is primarily intended for unpackaged specimens, and for items in their transportation container when the latter may be considered as part of the specimen itself. However, if the item is packaged, then the item itself is referred to as a product and the item and its packaging together are referred to as a test specimen. This standard may be used in conjunction with IEC 60068-2-47:2005, for testing packaged products. If the specimens are subjected to vibration of a combination of random and deterministic nature resulting from transportation or real life environments, for example in aircraft, space vehicles and for items in their transportation container, testing with pure random may not be sufficient. See IEC 60068-3-8:2003 for estimating the dynamic vibration environment of the specimen and based on that, selecting the appropriate test method. The major changes with regard to the previous edition concern the removal of Method 1 and Method 2, replaced by a single method, and replacement of Annex A with suggested test spectra and removal of Annex C. Also included in this revision is the testing of soft packed specimens. This consolidated version consists of the second edition (2008) and its amendment 1 (2019). Therefore, no need to order amendments in addition to this publication.
英文名称Environmental testing - Part 2-64: Tests - Test Fh: Vibration, broadband random and guidance