Abstract：The spring sets connected with armature component in the electromagnetic relay, is the typical rigid-flexible coupling structure. It also could be taken as the vulnerable part when the relay working in the mechanical environment. The vibration characteristics mathematical model of the relay is built by using finite element method, thus the analyzing method of limit vibration acceleration are presented completely by numerically solving the free vibration equation and forced vibration equation. The comparisons between the example calculation results and the displacement responses of spring sets which are recorded by using high speed camera are investigated. Thus the validity and the accuracy of the analyzing method are verified. And the relationship between the excited frequency and the limit vibration acceleration are obtained. Finally, the contact resistance is calculated through the obtained displacement responses of contacts and compared with the test results too. The analysis method and conclusions are valuable in solving the electromagnetic relay contact failure caused by mechanical vibration.
任万滨, 陈英华, 康云志, 王立忠, 崔黎. 电磁继电器振动极限加速度分析方法[J]. 电工技术学报, 2011, 26(1): 63-67.
Ren Wanbin, Chen Yinghua, Kang Yunzhi, Wang Lizhong, Cui Li. The Analyzing Method of Limit Vibration Acceleration for the Electromagnetic Relays. Transactions of China Electrotechnical Society, 2011, 26(1): 63-67.
2011, Vol. 26 
