带有1-5型压电芯子的自适应夹层梁的分析  

THE ANALYSIS OF AN ADAPTIVE SANDWICH BEAM WITH A1-5 TYPE PIEZOELECTRIC CORE

作　　者：金江[1] 万建国[1] 陶宝祺[1] 

机构地区：[1]南京航空航天大学智能材料与结构研究所,南京210016

出　　处：《工程力学》1999年第6期113-118, ,共6页Engineering Mechanics

基　　金：国家自然科学基金!59635140;航空科学基金!97B52097

摘　　要：利用１－５型压电材料作为芯子的夹层梁是一种新型压电自适应结构，本文对此进行了有限元法分析和实验分析。利用正交各向异性材料的本构方程和压电材料的压电方程，推导出了这种压电自适应夹层梁的控制方程，压电材料的驱动效应被等效为力学载荷，从而简化了计算过程。算例１的分析结果与实验符合，算例２的分析结果也与文献［６］非常吻合。The sandwich beam with a 1-5 type piezoelectric material core is a new typepiezoelectric adaptive structure. In this paper, it is analyzed with finite element method andexperimental method. On the basis of constitutive equation of orthotropic material and piezo-equation of piezoelectric material, the control equation for the piezoelectric adaptive sandwichbeam is formulated. The actuating effect of piezoelectric material is converted into an equivalentmechanical load,resulting in a simplified computational process. It is shown in two examples thatthe numerical results based on the present finite element analysis are in good agreement with theexperimental result and other available data.

关 键 词：压电材料 自适应结构 夹层梁 有限元法 

分 类 号：TM282[一般工业技术—材料科学与工程] TB381[电气工程—电工理论与新技术]