Active vibration control using time-delayed acceleration feedback

被引：0

作者：

An, Fang ^{[1
]}

Chen, Wei-Dong ^{[1
]}

机构：

[1] State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

来源：

Zhendong Gongcheng Xuebao/Journal of Vibration Engineering | 2012年 / 25卷 / 04期

关键词：

Continuous time systems - Computer control systems - Vibration control - Acceleration - Nanocantilevers - Piezoelectric actuators - Delay control systems - Cantilever beams - Feedback control - Time delay;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

This paper is devoted to design the time-delayed controller using direct acceleration feedback for active vibration control systems. By means of the reduction method and the output state-derivative feedback control approach, a new continuous time-delayed acceleration feedback controller is proposed without the inclusion of the displacement and velocity signal, so that the accumulation errors caused by once and twice integration of the acceleration signal can be avoided. In order to cater for the requirement of computer control, the discrete form of the proposed controller is obtained by the discretization of the corresponding integral system equation. The developed time-delayed feedback controller is examined by the computer simulation, with a special focus on the control performance of a cantilever beam with the piezoelectric actuator and the acceleration sensor. Simulation results demonstrate that the proposed controller can effectively reduce the free vibration response of the intelligent cantilever beam, and compared with the acceleration feedback controller, it has wider parametric stable intervals and better control effects. In addition, the proposed controller exhibits good robustness to the inaccuracy of the estimated time delay of the controlled system.

引用

页码：401 / 410