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浙江大学学报(工学版)
浙江大学学报(工学版)
机械工程     
综合模态控制力下压电致动器的优化布局
杨依领1,娄军强2,魏燕定1,傅雷1,田埂1,赵晓伟1
1. 浙江大学 现代制造工程研究所 浙江省先进制造技术重点研究实验室,浙江 杭州 310027； 2. 宁波大学 机械与力学学院,浙江 宁波 315211
Optimal placement of piezoelectric actuators using synthetic modal control force
YANG Yi-ling1, LOU Jun-qiang2, WEI Yan-ding1, FU Lei1, TIAN Geng1, ZHAO Xiao-wei1
1. Institute of Manufacturing Engineering, Key Laboratory of Advanced Manufacturing Technology of  Zhejiang Province, Zhejiang University, Hangzhou 310027, China;2. College of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China
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摘要：

针对智能挠性结构中致动器的优化布局问题,在分析挠性结构动力学方程和状态空间方程的基础上,采用模态理论,对系统控制矩阵进行奇异值分解,提出一种表征最大综合模态控制力的评价准则,该评价准则兼顾保留模态和截断模态对模态控制力的影响,综合考虑模态权重.最后以粘贴有压电致动器/应变传感器的挠性梁为例,通过理论计算和改进的遗传算法进行优化分析,得到综合模态控制力最大时压电致动器的布局位置,并建立实验测控系统进行验证.实验结果表明：采用优化结果中的致动器布局时,系统具有较好的综合模态控制力,控制效果也更优,所提出的评价准则和优化方法是可行的.
Abstract:

This paper dealt with the optimal placement of actuators in smart flexible structures. Based on the analysis of  dynamic equations and state space equations of flexible structures,  the modal theory was adopted and the singular value decomposition of control matrices was employed. Then, a criterion of the maximum synthetic modal control force  was proposed. The criterion involved the effect of reserved  and residual modes to the modal control force. Meanwhile, modal weights were considered. Finally,  a flexible beam with piezoelectric actuators/strain sensors was chosen as an example,  theoretical calculations and the improved genetic algorithm were used for the optimal analysis. Thus, the optimal positions of piezoelectric actuators with maximum synthetic modal control force were found, and an experimental system was set up to verify the proposed  method. The experimental results demonstrate that the  system has a good synthetic modal control force and control effect by using the optimal placement result of actuators. The proposed evaluation criterion and optimal method is feasible.
出版日期: 2015-12-26
:  TP 24  
基金资助:

国家自然科学基金资助项目(51375433)；浙江省自然科学基金资助项目(LY13E050008)
通讯作者: 魏燕定，男，教授     E-mail: weiyd@zju.edu.cn
作者简介: 杨依领(1987-)，男，博士生，从事振动主动控制、压电应用等方面研究. E-mail: meyangyl@zju.edu.cn
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引用本文:

杨依领,娄军强,魏燕定,傅雷,田埂,赵晓伟. 综合模态控制力下压电致动器的优化布局[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2015.05.005.

YANG Yi-ling, LOU Jun-qiang, WEI Yan-ding, FU Lei, TIAN Geng, ZHAO Xiao-wei. Optimal placement of piezoelectric actuators using synthetic modal control force. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2015.05.005.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2015.05.005    或    http://www.zjujournals.com/eng/CN/Y2015/V49/I5/841

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