Optimal placement of piezoelectric sensors and actuators for active structural vibration control
HUANG Quanzhen^1,2, GUO Xinjun¹, ZHANG Yang¹, CHEN Suxia³, GAO Jixun³
1. School of Electrical Information Engineering, Henan University of Engineering, Zhengzhou 451191, China;
2. Henan Province Key Laboratory of Electronic Ceramic Materials and Application, Zhengzhou 451191, China;
3. School of Computer, Henan University of Engineering, Zhengzhou 451191, China
Abstract: The active vibration control system of piezoelectric intelligent structure is widely used in robot, aerospace and other fields. Its design performance often depends on the number and location of sensors and actuators. If the configuration is unreasonable, the possibility of non-convergence of control system will be greatly increased. An optimal configuration method for the piezoelectric sensor and the actuator based on genetic algorithm was proposed on the study of piezoelectric smart cantilever beam. First, the optimal objective function based on the optimal criteria of the sensor and the actuator was established. Second, each step natural frequency and all order modal strain into the optimal objective function were worked out. Genetic algorithms were used to draw preliminary optimal allocation program. Then, vibration experiments for all configuration schemes were compared, and ultimately determine the optimal one. Finally, the experiment platform for control system are established to test the experiment and the results show that the vibration control effect is good, so it also indirectly verify the feasibility and effectiveness of the proposed optimal allocation scheme.
Keywords: active vibration control;optimal configuration;optimization objective function;genetic algorithm
2020, 46(12):112-118  收稿日期: 2020-08-02;收到修改稿日期: 2020-09-29
基金项目: 国家自然科学联合基金项目（U1804162）；河南省高校科技创新团队支持计划（21IRTSTHN017）；河南省科技攻关项目（202102210109，192102210072）；河南省高等学校重点科研项目（20B520006，20A413002）
作者简介: 黄全振(1979-),男,河南郑州市人,副教授,博士,研究方向为先进测控与信息处理、智能结构主动监控等
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