| 秦伟,王鹏,刘悦,唐梓迪.基于FDS的CI柜体随机振动加速试验方法[J].装备环境工程,2021,18(9):114-118. QIN Wei,WANG Peng,LIU Yue,TANG Zi-di.Random Vibration Acceleration Test Method of CI Cabinet Based on FDS[J].Equipment Environmental Engineering,2021,18(9):114-118. |
| 基于FDS的CI柜体随机振动加速试验方法 |
| Random Vibration Acceleration Test Method of CI Cabinet Based on FDS |
| 投稿时间：2021-04-20 修订日期：2021-05-11 |
| DOI：10.7643/issn.1672-9242.2021.09.017 |
| 中文关键词: 牵引变流器 超高斯 随机振动 疲劳损伤谱 加速试验 |
| 英文关键词:traction converter super-Gaussian random vibration FDS accelerated test |
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| Author | Institution |
| QIN Wei | Zhuzhou CRRC Times Electric Co.,Ltd., Zhuzhou 412001, China |
| WANG Peng | Zhuzhou CRRC Times Electric Co.,Ltd., Zhuzhou 412001, China |
| LIU Yue | Zhuzhou CRRC Times Electric Co.,Ltd., Zhuzhou 412001, China |
| TANG Zi-di | Zhuzhou CRRC Times Electric Co.,Ltd., Zhuzhou 412001, China |
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| 中文摘要: |
| 目的 在实验室内更加真实地模拟牵引变流器(CI)柜体的超高斯振动环境。方法 采用疲劳损伤谱(FDS)的等效疲劳损伤原则，基于超高斯信号对该柜体进行振动试验加速方法的研究。提出疲劳载荷谱的概念及其计算方法，将采集的平稳超高斯加速度信号，基于时域的方法计算其FDS，进而转换成用于振动台试验的加速度功率谱密度，对CI柜体进行随机振动加速试验。结果 在保证与原始损伤当量一致的基础上，完成了对CI柜体的振动试验，未出现任何疲劳失效。结论 该试验方法与传统的高斯振动试验相比，尽管选择同等的加速试验时间，但其更能真实地反映出CI柜体所承受的超高斯振动环境，进一步精确地检验产品的耐久性能。 |
| 英文摘要: |
| In order to more realistically simulate the super-Gaussian vibration environment of the traction converter (CI) cabinet in the laboratory. Based on the equivalent fatigue damage principle of fatigue damage spectrum (FDS), the acceleration method of vibration test for the cabinet was studied based on super-Gaussian signal. The concept of fatigue load spectrum and its calculation method were proposed, and then the FDS of the collected stationary super-Gaussian acceleration signal was calculated based on the time domain method. Then it was converted into the acceleration power spectral density used for the shaking table test, and the random vibration acceleration test was performed on the CI cabinet. On the basis of consistent with the original damage equivalent, the vibration test on the CI cabinet was completed without any fatigue failure. Compared with the traditional Gaussian vibration test, although the same accelerated test time is selected, the test method can more accurately reflect the super-Gaussian vibration environment borne by the CI cabinet, and further accurately test the durability of the product. |
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