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Research on modeling and self-excited vibration mechanism in magnetic levitation-collision interface coupling system
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作者 jinghu tang Chaofeng LI +1 位作者 Jin ZHOU Zhiwei WU 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI CSCD 2024年第5期873-890,共18页
The modeling and self-excited vibration mechanism in the magnetic levitation-collision interface coupling system are investigated.The effects of the control and interface parameters on the system's stability are a... The modeling and self-excited vibration mechanism in the magnetic levitation-collision interface coupling system are investigated.The effects of the control and interface parameters on the system's stability are analyzed.The frequency range of self-excited vibrations is investigated from the energy point of view.The phenomenon of self-excited vibrations is elaborated with the phase trajectory.The corresponding control strategies are briefly analyzed with respect to the vibration mechanism.The results show that when the levitation objects collide with the mechanical interface,the system's vibration frequency becomes larger with the decrease in the collision gap;when the vibration frequency exceeds the critical frequency,the electromagnetic system continues to provide energy to the system,and the collision interface continuously dissipates energy so that the system enters the self-excited vibration state. 展开更多
关键词 magnetic levitation coupling system self-excited vibration mechanical interface vibration frequency
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