计算力学学报Issue(5)：601-607,7.DOI:10.7511/jslx201505004
基于压电曲壳单元的结构振动最优控制
Optimal control of structural vibration using piezoelectric curved shell elements
摘要
Abstract
Curved shell structures have been widely used in aerospace,navigation and other fields,the tiny vibration of the structure will greatly affect the performance of components,it is necessary to control the vibration of curved shell structure.Optimal vibration control model of piezoelectric curved shell structure is presented,the base shell elements and the piezoelectric shell elements are coupled on the basis of the theory of spatial curved shell element and the multipoint constraint equations,and the dynamics finite element equation of piezoelectric curved shell structure is deduced.Optimal vibration control of piezoelec-tric curved shell structure is achieved by piezoelectric actuators according to the linear quadratic optimal control theory.Numerical examples are given to demonstrate that the required number of curved shell elements and actuators is much less than that of plat shell elements when they have the same precision and control effect at the same time in the dynamic analysis and vibration control of the curved shell struc-ture.关键词
曲壳单元/曲壳结构/压电作动器/振动/最优控制Key words
curved shell element/curved shell structure/piezoelectric actuator/vibration/optimal control分类
通用工业技术引用本文复制引用
赵国忠,翟景娟,张冠锋,冉令坤..基于压电曲壳单元的结构振动最优控制[J].计算力学学报,2015,(5):601-607,7.基金项目
国家自然科学基金(11472023) （11472023）
国家重点基础研究发展计划(2015CB 057306)资助项目 （2015CB 057306）
