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在给出压电网络板机电耦合动力学方程的基础上对其进行求解,将压电网络板的响应表示为子模态压电系统响应的线性组合.通过分析压电网络板在脉冲激励下子模态压电系统的响应行为,揭示压电网络板可以通过两种途径控制自身振动.基于对传递函数的分析进一步得到子模态压电系统的最优电学参数;在此基础上研究了针对某一阶子模态压电系统设计最优电学参数时,各阶子模态压电系统的响应行为以及压电网络板的多模态控制效果.研究结果表明,压电网络板具有多模态控制效果,特别地,当对板的某一阶次的振动控制具有较高要求时,通过对最优电学参数进行设计,电感电阻并联型压电网络板可满足要求.
The piezoelectric network plate electromechanical coupling kinetic equation is given on the basis of solving it, the piezoelectric network plate response is expressed as the linear combination of the submode piezoelectric system response.By analyzing the piezoelectric network plate under the pulse excitation The results show that the piezoelectric network board can control its own vibration in two ways.Based on the analysis of the transfer function, the optimal electrical parameters of the piezoelectric system are obtained. Based on this, The response behavior of each mode sub-mode piezoelectric system and the multi-mode control effect of the piezoelectric network plate in the design of the optimal electrical parameters of a first-order mode piezoelectric system show that the piezoelectric network plate has multimode State control effect. In particular, when the vibration control of a certain order on the board has higher requirements, the design of the optimal electrical parameters can meet the requirements of the parallel connection of the inductor-resistor piezoelectric network board.