压电网络复合板的振动抑制实验研究

主要研究了压电网络系统针对薄板的振动抑制特性，在对压电网络复合板机电耦合动力学方程分析的基础上，通过设计模拟电感电路解决了压电网络复合板振动实验中最优电感值过大的问题，从理论和实验上分析比较了电阻型和电感电阻并联型压电网络复合板振动控制效果及其特点。实验证明采用均匀化处理方法建立的机电耦合动力学方程能够正确预测压电网络复合板的动力学特性，同时实验验证了压电网络的电路模态和压电复合板的机械模态的耦合关系，明确了最优电学参数选取原则，为压电网络复合板的最优参数设计提供了依据。 

Experimental research on vibration control of composite plate with piezoelectric networks

The paper mainly studies the vibration control of the plate with piezoelectric network. After giving the dynamic equations of the plate with piezoelectric network based on the homogeneous assumption, we resolved the problem that the necessary inductance in the network is too large to be realized in practice. Two kinds of simulated inductance circuit are designed. The respective vibration control effect and characteristic of the composite plate with two kinds of piezoelectric network, that is, the network only with resistors and that with resistors and inductors, are compared experimentally. Experiments prove that the electromechanical coupling dynamic equations based on the homogeneous assumption can well predict the dynamic characteristics of the plate with piezoelectric network. The coupling relationship between electrical modes and mechanical vibration modes of piezoelectric composite plate is also verified. A suggestion for determining the optimal electrical parameters to have a good effect of vibration suppression is given, which can be used as a reference for practical design of the composite plate with piezoelectric network.