【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。更多还原

【Abstract】 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.更多还原