Vibration Suppression and Absorption Using Permanent Magnet Stiffness Varying Mechanism

doi:10.3901/JME.2017.09.066

Abstract

Abstract:

：A new type of stiffness varying mechanism is proposed and adopted to suppress and absorb the excessive vibration of rotor system. The stiffness of the permanent magnet stiffness varying mechanism is analyzed based on electromagnetic theory, and the characteristics of the stiffness are studied. Then the mechanism is adopted on the vibration suppression of the rotor system and experiments are carried out to verify the effect. At last a vibration absorber contains the permanent magnet stiffness varying mechanism is proposed and numerical simulation and experiments are carried out to test the effectiveness. The results show that the proposed permanent magnet stiffness varying mechanism has the advantages of non-contactless, large stiffness, large displacement tolerance and good linearity; it is effective in rotating machinery vibration suppression and vibration absorption.

Key words: rotor system, stiffness varying mechanism, vibration absorber, vibration suppression, permanent magnet

YAO Hongliang, WANG Chongyang, CHEN Zidong, WEN Bangchun. Vibration Suppression and Absorption Using Permanent Magnet
Stiffness Varying Mechanism[J]. Journal of Mechanical Engineering, 2017, 53(9): 66-72.

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URL: http://www.cjmenet.com.cn/EN/10.3901/JME.2017.09.066

http://www.cjmenet.com.cn/EN/Y2017/V53/I9/66

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Vibration Suppression and Absorption Using Permanent Magnet
Stiffness Varying Mechanism

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