Research on the Analyzing Method of Vibration Limit Acceleration for the Electromagnetic Relay
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 were 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 were recorded by using high speed camera were investigated. Thus the validity and the accuracy of the analyzing method were verified. And the relationship between the excited frequency and the limit vibration acceleration were obtained. Finally, the contact resistance was 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.
electromagnetic relay armature and spring sets rigid-flezible coupling vibration modal vibration limit acceleration
Ren Wanbin Chen Yinghua Kang Yunzhi Wang Lizhong Cui Li
School of Electrical Engineering and Automation, Harbin Institute of Technology, Heilongjiang Provin Guilin Aerospace Electronics Ltd Co., Guangxi Province, Guilin, 541002, China
国际会议
温州
英文
173-177
2009-10-18（万方平台首次上网日期，不代表论文的发表时间）