Optimal Piezoelectric Sensors and Actuators Deployment for Active Vibration Suppression of Satellite Antenna Reflector

被引：3
|
作者：
Li, Wenbo [1 ]
Li, Xiaoran [1 ]
Zhao, Zhigang [1 ]
Wang, Youyi [1 ]
Zhao, Yang [1 ]
机构：
[1] Harbin Inst Technol, Dept Aerosp Engn, Harbin 150006, Peoples R China
来源：
ADVANCED MECHANICAL DESIGN, PTS 1-3 | 2012年 / 479-481卷
关键词：
Satellite Antenna; Gram Matrix; Optimal Actuators and Sensors Deployment; LQG; FLEXIBLE STRUCTURES; PLACEMENT; CONTROLLABILITY; OBSERVABILITY;
D O I：
10.4028/www.scientific.net/AMR.479-481.1490
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To solve the problem of active vibration control for satellite antenna reflector, which is weak damping and closely spaced modes, the optimal actuators/sensors deployment and controller designing need to be considered. Firstly, the optimal criterions of controllability and observability are designed according to the specificity of Gram Matrix eigenvalue in satellite antenna system equations. Secondly, based on the above criterions, piezoelectric materials (as sensors and actuators) and genetic algorithm are utilized to optimize the deployed locations of sensors and actuators. Finally, to suppress the vibration of satellite antenna reflector, a Linear Quadratic Gaussian (LQG) controller is designed under the impulse and white noise excitation respectively. The simulate results show the effectively deployed locations of sensors and actuators, and the correctness of designed LQG controller.
引用
收藏
页码：1490 / 1494
页数：5
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