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Dynamic Analysis of contact bounce of Aerospace Relay Based on Finite Difference Method

Chinese Journal of Aeronautics 2009年第3期22卷 262-267页

作者：熊军何俊佳臧春艳福建省电力有限公司技术中心福州350007 华中科技大学电气与电子工程学院武汉430074

contact bounce of relay, which is the main cause of electric abrasion and material erosion, is inevitable. By using the mode expansion form, the dynamic behavior of two different reed systems for aerospace relays is analyzed. The dynamic model uses Euler-Bernoulli beam theory for cantilever beam, in which the driving force (or driving moment) of the electromagnetic system is taken into account, and the contact force between moving contact and stationary contact is simulated by the Kelvin-Voigt vis-coelastic...

关键词： aerospace relay dynamic analysis finite difference method contact bounce reed system

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Optimization design method of contact bounce and breakaway initial velocity for aerospace electromagnetic relay

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Journal of Harbin Institute of Technology(New Series) 2011年第5期18卷 130-136页

作者：叶雪荣梁慧敏翟国富 School of Electrical Engineering and Automation Harbin Institute of Technology

Aerospace electromagnetic relay is an electric component that has been widely used in aerospace *** bounce and contact breakaway for initial velocity are the key parameters that have strong influence on reliability and electric life of the ***,it is difficult to optimize these two parameters *** 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 *** the constraints of contact gap and contact force,the optimal combination of debugging parameters is obtained by the application of orthogonal *** 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 *** 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.

关键词： aerospace electromagnetic relay debugging parameters contact bounce contact breakaway initial velocity orthogonal design

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Vibration mechanism analysis and algorithm optimization of contactor contact system

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Journal of Measurement Science and Instrumentation 2021年第4期12卷 396-404页

作者： HUANG Kepeng WANG Fazhan ZHAO Mingji GUO Baoliang OU Daquan College of Mechanical and Electrical Engineering Xi’an University of Architecture & Technology Xi’ an 710055 China Technology R&D Center ABB Xinhui Low-Voltage Switchgear Co. Ltd. Jiangmen 529089 China

In order to solve the problem of vibration bounce caused by the contact between moving and stationary contacts in the process of switching on,two-degree-of-freedom motion differential equation of the contact system is *** algorithm is used to optimize the pull in process of AC *** whole process of contact bounce was observed and analyzed by high-speed photography *** theory and experimental results were very *** iron core has collided before the contact is separated,which further aggravates the contact *** the iron core bounces collided again,the bounce of the contact was not *** the operation of the contactor,the movement of the moving iron core will cause slight vibration of the *** contact bounce time and the maximum amplitude are *** research results provide a theoretical basis for further control and reduction of contact bounce.

关键词： electrical switch contact bounce two-degree-of-freedom motion differential equation algorithm optimization high-speed photography

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