Modelling and analysis of circular bimorph piezoelectric actuator for deformable mirror  

作　　者：Hairen WANG Ming HU Zhenqin LI 

机构地区：[1]Purple Mountain Observatory, Chinese Academy of Sciences [2]Key Laboratory for Radio Astronomy, Chinese Academy of Sciences [3]Institute of Geodesy and Geophysics, Chinese Academy of Sciences [4]School of Materials and Metallurgy, Northeastern University

出　　处：《Applied Mathematics and Mechanics(English Edition)》2016年第5期639-646,共8页应用数学和力学（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Nos.11403109,11190014,10921063,and 11373073);the Natural Science Foundation of Jiangsu Province(No.BK20141042)

摘　　要：A theoretical model of a circular flexure-mode piezoelectric bimorph ac- tuator is established. The circular bimorph structure, consisting of two flexible layers of piezoelectric material and a layer of metallic material in the middle, is powered to the flexural deformation. The analytical solutions including the statics solution and the dynamics solution are derived from the 3D equations of the linear theory of piezoelectric- ity. Numerical results are included to show the circular bimorph piezoelectric actuator （CBPA） performance, depending on the physical parameters.A theoretical model of a circular flexure-mode piezoelectric bimorph ac- tuator is established. The circular bimorph structure, consisting of two flexible layers of piezoelectric material and a layer of metallic material in the middle, is powered to the flexural deformation. The analytical solutions including the statics solution and the dynamics solution are derived from the 3D equations of the linear theory of piezoelectric- ity. Numerical results are included to show the circular bimorph piezoelectric actuator （CBPA） performance, depending on the physical parameters.

关 键 词：piezoelectric actuator circular bimorph structure flexure-mode 

分 类 号：TH751[机械工程—仪器科学与技术]