Vibration isolation of a metamaterial ring arrayed with negative capacitance piezoelectric shunting

被引：0
|
作者：
Lin L. [1 ]
Lu Z. [1 ]
Ding H. [1 ]
Chen L. [1 ]
机构：
[1] (1. School of Mechanics and Engineering Science, Shanghai University
[2] 2. Shanghai Key Laboratory of Energy Engineering Mechanics, Shanghai University
[3] 3. Shanghai Institute of Applied Mathematics and Mechanics
来源：
Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2022年 / 43卷 / 09期
关键词：
bandgap; circular ring; frequency response function; local resonance; metamaterial; negative capacitance; piezoelectric shunt circuit; vibration isolation;
D O I：
10.11990/jheu.202203049
中图分类号：
学科分类号：
摘要：
Aiming at the shortage of broadband vibration control of resonant structures, we studied the vibration isolation characteristics of electromechanically coupled metamaterials and designed a metamaterial ring periodically arrayed with piezoelectric fiber sheets connected with negative capacitance piezoelectric shunting to realize the vibration attenuation effect based on the band gap property of the metamaterials. The dynamical equations of the metamaterial ring were established, and the attenuation characteristics were verified using the finite element method. The metamaterial ring was found to have a local resonant band gap, and introducing the negative capacitance piezoelectric shunting not only widened the band gap to a certain extent but also exhibited a significant damping effect. © 2022 Editorial Board of Journal of Harbin Engineering. All rights reserved.
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页码：1320 / 1327
页数：7
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