压电智能结构的阻抗法建模

Impedance Modeling Method for Piezoelectric Intelligent Structures

采用基于机械阻抗分析的方法 ,推导了表面粘有压电陶瓷作动器的四边简支矩形薄板的建模过程 ,并进行了仿真计算 .与静态分析的结果进行比较 ,表明阻抗法的建模过程抓住了压电陶瓷片与结构之间动态耦合的物理实质 ,是一种更好的建模方法 .

An impedance-based modeling method is applied to a simple supported two-dimension thin plate,which is equipped with piezoelectric actuators for active vibration control.And then simulate the modeling calculating.When compared with the static modeling,the impedance modeling captures the dynamic coupling of the piezoelectric patch and the host structure.It is proved that this impedance modeling approach is more accurate.