A hybrid vibration isolator based on piezoelectric and viscoelastic materials

被引：0
|
作者：
Li M. [1 ]
Fang B. [2 ]
Zhen Y. [3 ]
Zhao J. [1 ]
机构：
[1] Beijing Mechanical Equipment Institute, Beijing
[2] School of Astronautics, Harbin Institute of Technology, Harbin
[3] School of Mathematical & Physical Science, North China Electric Power University, Beijing
来源：
Fang, Bo (limm913@163.com) | 1600年 / Chinese Vibration Engineering Society卷 / 36期
关键词：
Feedback control; Hybrid vibration isolator; Laminated piezoelectric actuator; Viscoelastic material;
D O I：
10.13465/j.cnki.jvs.2017.01.020
中图分类号：
学科分类号：
摘要：
A new hybrid vibration isolator (HVI) with an laminated piezoelectric actuator used as an active vibration isolation component and viscoelastic material used to design a passive vibration isolation component was proposed to reduce the effects of vibration loads on structures. Taking a simulated rigid satellite as a study object, the dynamic model of the whole-spacecraft hybrid vibration isolation system was established to analyze the vibration isolation principle of a HVI numerically. Then, the single-input multiple-output PID control method was used to design an active controller, tests were performed for the simulated rigid satellite hybrid vibration isolation system. The simulation and test results showed that a HVI can effectively reduce the vibration loads transmitted to structures compared with a pure passive vibration isolator, especially, near natural frequencies of structures, so the safety and reliability of structures can be improved significantly. © 2017, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：134 / 140
页数：6
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