Design and Analysis of Electromagnetic Quasi-zero Stiffness Vibration Isolator

被引：12
作者：
Wang MengTong [1 ]
Su Pan [1 ]
Liu ShuYong [1 ]
Chai Kai [1 ]
Wang BoXiang [1 ]
Lu Jinfang [1 ]
机构：
[1] Naval Univ Engn, Coll Power Engn, Wuhan 430033, Peoples R China
来源：
JOURNAL OF VIBRATION ENGINEERING & TECHNOLOGIES | 2023年 / 11卷 / 01期
关键词：
Quasi-zero stiffness; Electromagnetic spring; Harmonic balance method; Transmissibility;
D O I：
10.1007/s42417-022-00569-x
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Introduction To improve the low frequency isolation capability of vibration isolation system, a kind of electromagnetic quasi-zero-stiffness (QZS) vibration isolator was designed. Materials and methods The negative stiffness electromagnetic spring paralleled with the linear positive stiffness spring to achieve the state of QZS. The nonlinear dynamic model of vibration isolator was established. Through the combination of theoretical formula and simulation analysis, the electromagnetic force expression was obtained. The amplitude-frequency responsecharacteristics and force transmissibility was solved by harmonic balance method, and the effects of system parameters on amplitude - frequency characteristics and transmissibility was analyzed. Conclusion The results show that the new isolator has better performance than the linear system, and the decreased damping ratio and excitation amplitude make the effects of vibration isolation of system superior.
引用
收藏
页码：153 / 164
页数：12
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