简支梁式板的压电动力控制与数值仿真

采用Ｄａｕｂｅｃｈｉｅｓ小波理论的尺度函数变换，对两端简支的梁式板给出了由压电片感应器（ｓｅｎｓｏｒｓ）上的观测电量识别其结构变形的显式公式，在采用挠度和速度信号的负反馈控制律后，导出了控制电压的显式表达公式。这一压电动力控制模式的数值仿真结果表明：本文控制方法在抑制外界干扰方面具有良好的效果。

Dynamic Control of Simply Supported BeamPlates with Piezoelectric Layers and Its Numerical Simulations

By means of the scaling function transform of the Daubechies wavelet theory, this paper is to present an explicit expression of identification of deflection of the simply supported beam plates in terms of the measured electric charges and currents on the piezoelectric sensors. After the feedback control law of negative identified deflection and its velocity is chosen, an explicit formula of control voltage applied to the piezoelectric actuators is deduced out. Finally, some numerical simulations are given to show the efficiency of the control approach . The numerical results indicate that this control process is efficient in suppressing a disturbance.