Bidirectional energy-controlled piezoelectric shunt damping technology and its vibration attenuation performance  

作　　者：Yipeng Wu Quan Yuan Kaibin Ren Xin Shen Hui Shen Adrien Badel Hongli Ji Jinhao Qiu 

机构地区：[1]State Key Laboratory of Mechanics and Control for Aerospace Structures,Nanjing University of Aeronautics and Astronautics,Nanjing,China [2]College of Mechanical and Electrical Engineering,Qingdao University,Qingdao,China [3]SYMME Laboratory,Universite Savoie Mont Blanc,Annecy le Vieux,France

出　　处：《International Journal of Mechanical System Dynamics》2024年第1期63-76,共14页国际机械系统动力学学报（英文）

基　　金：National Key Research and Development Program of China,Grant/Award Number:2021 YFB3400100;National Natural Science Foundation of China,Grant/Award Numbers:52241103,U2241261;Fund of Prospective Layout of Scientific Research for Nanjing University of Aeronautics and Astronautics。

摘　　要：Piezoelectric material-based semi-active vibration control systems may effectively suppress vibration amplitude without any external power supply,or even harvest electrical energy.This bidirectional electrical energy control phenomenon is theoretically introduced and validated in this paper.A flyback transformer-based switching piezoelectric shunt circuit that can extract energy from or inject energy into piezoelectric elements is proposed.The analytical expressions of the controlled energy and the corresponding vibration attenuation are therefore derived for a classical electromechanical cantilever beam.Theoretical predictions validated by the experimental results show that the structure vibration attenuation can be tuned from−5 to−25 dB under the given electrical quality factor of the circuit and figure of merit of the electromechanical structure,and the consumed power is in the range of−13 to 25 mW,which is a good theoretical basis for the development of self-sensing,self-adapting,and self-powered piezoelectric vibration control systems.

关 键 词：vibration control PIEZOELECTRIC shunt damping electromechanical energy 

分 类 号：TM22[一般工业技术—材料科学与工程] TM4[电气工程—电工理论与新技术]