压电类智能结构耦合系统动力学分析

对压电类智能结构耦合系统动力学问题进行了分析,阐明了压电结构在外载(机械力或电场)作用下的力学特征、电学特征.从机电耦合弹性体的理论出发,运用Hamilton原理建立一般压电类智能结构耦合系统的动力分析模型,进行压电类智能结构耦合系统的有限元分析.以此为基础进行压电类智能结构耦合系统动力学分析:模态分析和瞬态动力分析.最后利用有限元分析软件ANSYS,对粘贴压电陶瓷片的压电悬臂板耦合效应进行模拟分析,进行了模态分析、瞬态动力学分析研究.说明了压电类智能结构耦合系统的动力学特性.

Dynamic analysis of electromechanical coupled system for piezoelectric intelligent structures

The problem of dynamic analysis on electromechanical coupled system for piezoelectric intelligent structures is studied.The characters of mechanics and electricity of intelligent structures are expounded under external force(mechanical force and electric field).Starting from the basic principles of electromechanical coupled elastic body and Hamilton's theory,the general dynamic analysis model of electromechanical coupled system was derived,and the general electromechanical coupled dynamic equations of finite element analysis models were formulated.Based on these formulations,the dynamic analysis of electromechanical coupled system was studied for piezoelectric intelligent structures,including modal analysis and transient analysis.At last,the finite element analysis software ANSYS was used to carry on the coupling analysis of piezoelectricity on intelligent cantilevered plate.The modal analysis and transient analysis are investigated.The dynamic behaviors of electromechanical coupled system for piezoelectric intelligent structures are explained.