| 基于压电阻抗的结构缺陷评价方法的实验研究 |
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| 引用本文： | 李以农,郑玲,闻邦椿.基于压电阻抗的结构缺陷评价方法的实验研究[J].力学与实践,2002,24(3):0-0. |
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| 作者姓名： | 李以农 郑玲 闻邦椿 |
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| 作者单位： | 1. 重庆大学机械传动国家重点实验室,重庆,400044
2. 东北大学机械工程与自动化学院,沈阳,110006 |
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| 基金项目： | 教育部留学归国人员科研启动基金(2000-367)，重庆市科委应用基础研究基金(2000-6131)，上海交通大学振动、冲击、噪声国家重点实验室开放基金(VSN-2001-03)资助. |
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| 摘 要： | 介绍基于压电动态阻抗的结构健康诊断新技术. 在阐述其基本原理
的基础上，用压电陶瓷作为驱动源产生的动态阻抗信息，从实验的角度定
性评价几种结构缺陷，证实该方法的可行性.
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| 关 键 词： | 动态阻抗 压电材料 机电耦合 结构缺陷 健康诊断 |
| 修稿时间： | 2001年3月12日 |
EXPERIMENTAL RESEARCH ON EVALUATING STRUCTURE DAMAGE WITH PIEZOELECTRIC DYNAMIC IMPEDANCE |
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| LI Yinong ZHENG LingState Key Lab. of Mechanical Thansmission,Chongqing University Chongqing ,ChinaWEN BangchunSchool of Mechanical Engineering,NortheasternUniversity,Shenyang,Liaoning ,China.EXPERIMENTAL RESEARCH ON EVALUATING STRUCTURE DAMAGE WITH PIEZOELECTRIC DYNAMIC IMPEDANCE[J].Mechanics and Engineering,2002,24(3):0-0. |
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| Authors: | LI Yinong ZHENG LingState Key Lab of Mechanical Thansmission Chongqing University Chongqing ChinaWEN BangchunSchool of Mechanical Engineering NortheasternUniversity Shenyang Liaoning China |
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| Institution: | LI Yinong ZHENG LingState Key Lab. of Mechanical Thansmission,Chongqing University Chongqing 400044,ChinaWEN BangchunSchool of Mechanical Engineering,NortheasternUniversity,Shenyang,Liaoning 110006,China |
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| Abstract: | A dynamic impedance-based healthmonitoring technique is introduced. According tothe direct and the converse piezoelectric property ofpiezoelectric materials, if damages are present in astructure, its mechanical impedance will be modi-fied. On the basis of experiments and analyses ondamages of the structure, some kinds of structuraldamages are evaluated by the dynamic impedanceand the feasibility of the method is explored. |
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| Keywords: | dynamic impedance piezoelectric ma-terials electromechanical coupling structure dam-age health monitoring |
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