IEC 60068的这一部分证明了当受到时间历程（长时间历程复制）定义的规定振动试验要求时，试样在承受动态载荷的同时，其功能和/或结构完整性不会出现不可接受的退化。这些数据可以记录在测量练习中，也可以人工生成。在这两种情况下，该方法都允许生成针对非常特定的应用程序定制的测试。 典型应用是需要非常特定的确定性瞬态、周期性或随机激励的试验，运动特性不在其他试验标准的范围内。这包括IEC 60068标准冲击试验未充分表示的时间历程- 2-27[2]或IEC 600682-81[3]中冲击响应谱的一般描述，IEC 60068-2-6中正弦波形未涵盖的周期性振动，以及IEC 60068-2-64中高斯或非高斯（高峰度）宽带随机振动描述未涵盖的随机振动。然而，用户知道长时间历史复制使用确定性的时间历史。任何一种随机振动的模拟都近似于准随机振动。 此外，通过生成表示所需测试信号的时间历程，可以使用该测试方法进行额外的混合模式测试。这包括高复杂性的测试。交叉引用:EN 60068-2-6EN 60068-2-47IEC 60068- 2-6IEC 60068-2-47EN 60068-2-64:2008IEC 60068-2-64:2008IEC 60721-3IEC 60068-1IEC 60068-2-27IEC 60068-5-2IEC 60068-3-8IEC 60050-300IEC 60068-2-81DIN ENV 13005IEC 60068-2-57ISO 2041ISO/IEC 17025:2017购买本文件时可提供的所有当前修订版。

This part of IEC 60068 demonstrates the adequacy of specimens to resist dynamic loads without unacceptable degradation of its functional and/or structural integrity when subjected to the specified vibration test requirements as defined by a time history (long time history replication). These can either be recorded in measurement exercises or generated artificially. In both cases, this method allows for generating a test tailored to very specific applications. Typical applications are tests in which very specific deterministic transient, periodical or random excitation is necessary and the characteristics of the motion are not covered by other test standards. This includes time histories not sufficiently represented by the standard shock tests of IEC 60068-2-27 [2] or a general description by a shock response spectrum as in IEC 600682-81 [3], periodical vibration that is not covered by a sinusoidal waveform as in IEC 60068-2-6, and random vibration that is not covered by the description of Gaussian or non-Gaussian (high kurtosis) broad-band random vibration of IEC 60068-2-64. However, the user is made aware that long time history replication uses a deterministic time history. Simulation of random vibration of any kind is approximated by quasi-random. In addition, additional mixed mode tests are possible with this test method by generating time histories that are representations of the required test signals. This includes tests of high complexity.Cross References:EN 60068-2-6EN 60068-2-47IEC 60068-2-6IEC 60068-2-47EN 60068-2-64:2008IEC 60068-2-64:2008IEC 60721-3IEC 60068-1IEC 60068-2-27IEC 60068-5-2IEC 60068-3-8IEC 60050-300IEC 60068-2-81DIN ENV 13005IEC 60068-2-57ISO 2041ISO/IEC 17025:2017All current amendments available at time of purchase are included with the purchase of this document.