| 压电曲梁单元及其形状控制 |
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| 引用本文： | 王剑,赵国忠,王悦东,兆文忠.压电曲梁单元及其形状控制[J].计算力学学报,2011,28(4):641-646. |
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| 作者姓名： | 王剑 赵国忠 王悦东 兆文忠 |
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| 作者单位： | 大连理工大学工程力学系工业装备结构分析国家重点实验室,大连,116024 |
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| 基金项目： | 国家自然科学基金(10772038,11072049);国家科技支撑计划(2009BAG12A04);教育部新世纪优秀人才支持计划(NCET090259);中央高校基本科研业务费专项资金(DUT10LK30)资助项目. |
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| 摘 要： | 航空航天等领域对结构形状要求非常严格,利用压电材料的逆压电效应控制结构变形是现代空间结构形状控制中一个很好的选择。本文基于一般曲梁单元,推导了空间压电曲梁单元的方程表达式,主体壳结构与压电单元之间利用约束方程连接。在此基础上进一步采用最小二乘法得到了压电控制单元上的最优电压,实现了压电曲梁单元的变形控制。数值算例表明了...
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| 关 键 词： | 压电曲梁 有限元 最小二乘法 形状控制 |
| 收稿时间： | 2009/6/12 0:00:00 |
| 修稿时间： | 5/2/2010 12:00:00 AM |
Shape control of piezoelectric structures by curved beam actuators |
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| WANG Jian,ZHAO Guo-zhong,WANG Yue-dong and ZHAO Wen-zhong.Shape control of piezoelectric structures by curved beam actuators[J].Chinese Journal of Computational Mechanics,2011,28(4):641-646. |
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| Authors: | WANG Jian ZHAO Guo-zhong WANG Yue-dong and ZHAO Wen-zhong |
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| Institution: | School of Traffic and Transportation, Dalian Jiaotong University, Dalian 116028, China;Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China;School of Traffic and Transportation, Dalian Jiaotong University, Dalian 116028, China;School of Traffic and Transportation, Dalian Jiaotong University, Dalian 116028, China |
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| Abstract: | The shape effect is very important in the field of space engineering. It is a good idea to control the shape of the structure by piezoelectric effects from piezoelectric materials at present. In this paper, a spatial curved beam is derived, and a piezoelectric curved beam finite element model is built based on it. Constraint equation is used here to link the actuators and host shell. Linear least square method is adopted here to solve the shape control model. Numerical examples are given to demonstrate the validity of the model proposed. |
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| Keywords: | piezoelectric curved beam FEM linear least square method shape control |
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