根据线性系统微分方程的相似性确定机械系统的相似电路,由压电材料的本构和动力方程确定压电材料作为机电耦合的变压器,从而用一个耦合的电路系统模拟智能结构的电学和力学行为.通过一个压电梁智能结构的分析,证明了模型的可用性 Based on the similarity of linear differential equations, the similar circuit of mechanical system is determined. The piezoelectric material is determined as the electromechanically coupled transformer by the constitutive and dynamic equations of the piezoelectric material, so that the electrical and mechanical behaviors of the intelligent structure are simulated by a coupled circuit system Through the analysis of a piezoelectric beam intelligent structure, the availability of the model is proved