Optimization design method of contact bounce and breakaway initial velocity for aerospace electromagnetic relay
YE Xue-rong, LIANG Hui-min, ZhaiGuoFu
School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150001,China
Abstract:
Aerospace electromagnetic relay is an electric component that has been widely used in aerospace industry.Contact bounce and contact breakaway for initial velocity are the key parameters that have strong influence on reliability and electric life of the relay.Generally,it is difficult to optimize these two parameters simultaneously.In this paper,according to kinetics theory and structural mechanics,a dynamic reaction calculation model of the relay that describes contact bounce and breakaway for initial velocity is proposed.Under the constraints of contact gap and contact force,the optimal combination of debugging parameters is obtained by the application of orthogonal design.It considers the reduction of contact bounce and the augmentation of breakaway for initial velocity as the optimization objectives,and takes the debugging parameters as the optimization variables.All these above ensure the increase of contact breakaway for initial velocity and the decrease of contact bounce simultaneously,and contact arc erosion is also reduced.
Key words: aerospace electromagnetic relay debugging parameters contact bounce contact breakaway initial velocity orthogonal design
DOI：10.11916/j.issn.1005-9113.2011.05.023
Clc Number:V442
Fund:
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Optimization design method of contact bounce and breakaway initial velocity for aerospace electromag
本站小编 哈尔滨工业大学/2019-10-23
相关话题/Optimization design method contact bounce
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