压电智能结构传感器/作动器位置优化研究  

Optimal Investigation of Sensor/Actuator Palcement for Piezoelectric Smart Structure

作　　者：王威远 魏英杰[1] 王聪[1] 邓年春[1] 邹振祝[1] 

机构地区：[1]哈尔滨工业大学航天学院,黑龙江哈尔滨150001

出　　处：《宇航学报》2007年第4期1025-1029,共5页Journal of Astronautics

摘　　要：研究压电主动结构振动控制当中传感器/作动器的位置优化问题。从系统的状态空间方程出发,在系统可控性、可观性Grammian矩阵特征值的基础上来描述性能指标,以控制能量最小化和传感能量最大化作为优化目标,利用遗传算法(GE)进行优化计算,计算过程中对传感器/作动器的位置采用二进制编码加以描述。通过对一压电板结构的仿真计算对该方法进行了验证,优化计算结果与枚举法结果完全相符,从而证明了方法的有效性。The purpose of this paper is to investigate the optimal placement of piezoelectric sensor/actuator for active vibration control of smart structure. Base on the state space equation and the controllability/observability Grammian matrix, the optimal target was given by minimize the control energy and maximize the sensitive energy. The genetic algorism was used for optimal computation. The placements of sensor/actuator were defined with binary coding. A piezoelectric plate has been simulated to attest the optimal method. Validity has been proved because it obtained the same result for optimal method calculation and enumerate method calculation.

关 键 词：压电传感器/作动器 智能结构 位置优化 遗传算法 

分 类 号：O482.41[理学—固体物理] V214.19[理学—物理]