| Random vibration analysis of switching apparatus based on Monte Carlo method |
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| 作者姓名： | ZHAI Guo-fu CHEN Yang-hua REN Wan-bin |
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| 作者单位： | School of Electrical Engineering and Automation，Harbin Institute of Technology，Harbin 150001，China |
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| 基金项目： | Project (No. FEBQ24409102) supported by the Space Technology Innovation Fund, China |
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| 摘 要： | The performance in vibration environment of switching apparatus containing mechanical contact is an important element when judging the apparatus’s reliability. A piecewise linear two-degrees-of-freedom mathematical model considering contact loss was built in this work, and the vibration performance of the model under random external Gaussian white noise excitation was investigated by using Monte Carlo simulation in Matlab/Simulink. Simulation showed that the spectral content and statistical characters of the contact force coincided strongly with reality. The random vibration character of the contact system was solved using time (numerical) domain simulation in this paper. Conclusions reached here are of great importance for reliability design of switching apparatus.
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| 关 键 词： | 接点系统 随机振动 蒙特卡罗模拟 理论分析 |
| 收稿时间： | 2006-12-19 |
| 修稿时间： | 2007-01-05 |
Random vibration analysis of switching apparatus based on Monte Carlo method |
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| ZHAI Guo-fu CHEN Yang-hua REN Wan-bin.Random vibration analysis of switching apparatus based on Monte Carlo method[J].Journal of Zhejiang University Science,2007,8(3):422-425. |
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| Authors: | Zhai Guo-fu Chen Ying-hua Ren Wan-bin |
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| Institution: | (1) School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin, 150001, China |
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| Abstract: | The performance in vibration environment of switching apparatus containing mechanical contact is an important element when
judging the apparatus’s reliability. A piecewise linear two-degrees-of-freedom mathematical model considering contact loss
was built in this work, and the vibration performance of the model under random external Gaussian white noise excitation was
investigated by using Monte Carlo simulation in Matlab/Simulink. Simulation showed that the spectral content and statistical
characters of the contact force coincided strongly with reality. The random vibration character of the contact system was
solved using time (numerical) domain simulation in this paper. Conclusions reached here are of great importance for reliability
design of switching apparatus.
Project (No. FEBQ24409102) supported by the Space Technology Innovation Fund, China |
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| Keywords: | Contact system Random vibration Monte Carlo simulation Matlab/Simulink |
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