| 基于模态参数的工程结构损伤识别方法 |
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| 引用本文： | 周毅,王保国.基于模态参数的工程结构损伤识别方法[J].电力机车与城轨车辆,2006,29(3):47-49,52. |
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| 作者姓名： | 周毅 王保国 |
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| 作者单位： | 西南交通大学,牵引动力国家重点实验室,四川,成都,610031 |
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| 摘 要： | 介绍了结构故障诊断的技术手段以及应用振动诊断进行结构损伤识别的研究现状。应用有限元程序进行模态分析和频响分析,得到在不同损伤度的条件下轮对局部模态频率和振幅幅值的变化趋势。提出基于频率移动和模态振型变化来判断结构损伤。
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| 关 键 词： | 损伤识别 结构振动 轮对 模态分析 裂纹 位移频响函数 |
| 文章编号： | 1672-1187（2006）03-0047-03 |
| 收稿时间： | 2005-12-30 |
| 修稿时间： | 2005年12月30 |
Engineering structures damage detection based on modal parameter estimation |
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| ZHOU Yi,WANG Bao-guo.Engineering structures damage detection based on modal parameter estimation[J].Electric Locomotives & Mass Transit Vehicles,2006,29(3):47-49,52. |
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| Authors: | ZHOU Yi WANG Bao-guo |
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| Abstract: | This paper summarizes the technique means of fault diagnosis and damage identification for structure, and the present research and application of damage identification for structure with vibration diagnosis technique. Based on finite element method, it is obtained to the trend of part modal frequency and the amplitude by simulating different extent of damage. The way based on frequency and modal change to identify structure damage is given out. |
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| Keywords: | damage detection structural vibration wheel set modal analysis crack displacement frequency response function |
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