噪声与振动控制2018，Vol.38Issue(2)：30-35,6.DOI:10.3969/j.issn.1006-1355.2018.02.007
一种基于压电堆执行器的柔性结构滞后补偿PID控制
Lag-compensation PID Control for a Flexible Structure with Piezoelectric Stack Actuators
赖俊杰 1浮洁 1李沛东 1白俊峰 1余淼1
作者信息
- 1. 重庆大学 光电工程学院光电技术及系统教育部重点实验室,重庆400044
- 折叠
摘要
Abstract
Piezoelectric stack actuators and PID controllers are exploited to suppress the vibration of the flexible beams under multi-frequency excitations. Meanwhile, the phase-lag compensator and frequency division method are applied to solve the issues of phase-lag and multi-frequency excitation for the flexible beams.First of all,the modal frequencies and shapes of the flexible beam are obtained by FEA method and verified by experimental test.And the relationship between the excitation frequency and the phase-lag is identified by experiments.Then,the active frequency-division-based PID controller with the phase compensator is designed to attenuate the multi-frequency vibrations of the flexible beam. Finally, the performance of the proposed controller is investigated and specifically, the acceleration responses of the controlled beam under multi-frequency excitation are evaluated.The results show that the maximum attenuation of acceleration root mean square(RMS)is about 45 %,which indicates that the designed PID controller is effective.关键词
振动与波/柔性结构/延时/PID控制器/滞后补偿/模态分析Key words
vibration and wave/flexible structure/time-delay/PID controller/lag-compensation/modal analysis分类
通用工业技术引用本文复制引用
赖俊杰,浮洁,李沛东,白俊峰,余淼..一种基于压电堆执行器的柔性结构滞后补偿PID控制[J].噪声与振动控制,2018,38(2):30-35,6.
