| 高精度模态应变能法结构损伤检测研究 |
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| 引用本文： | 王学广,贺国京.高精度模态应变能法结构损伤检测研究[J].铁道学报,2005,27(5):92-95. |
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| 作者姓名： | 王学广 贺国京 |
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| 作者单位： | 1. 广东省冶金建筑设计研究院,特殊结构设计所,广东,广州,510080
2. 中南大学,土木建筑学院,湖南,长沙,410075 |
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| 基金项目： | 铁道部科技司科技发展计划项目（2003G035） |
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| 摘 要： | 基于摄动理论,通过考虑结构参数修改量高阶项的影响,推导了基于单元模态应变能的结构损伤评估方法;数值仿真结果表明,在结构多种损伤情况下,损伤定位准确、程度评估可靠,具有实际应用价值。
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| 关 键 词： | 摄动理论 结构参数 模态应变能 损伤诊断 |
| 文章编号： | 1001-8360（2005）05-0092-04 |
| 收稿时间： | 2004-10-10 |
| 修稿时间： | 2005-05-27 |
Effective Structural Damage Detection Method Based on Modal Strain Energy |
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| WANG Xue-guang,HE Guo-jing.Effective Structural Damage Detection Method Based on Modal Strain Energy[J].Journal of the China railway Society,2005,27(5):92-95. |
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| Authors: | WANG Xue-guang HE Guo-jing |
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| Institution: | 1. Division of Special Construction Disign, Guangdong Metallurgical and Architectural Design Institute, Guangzhou 510080, China; 2. School of Civil Engineering and Architecture, Central South University, Changsha 410075, China |
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| Abstract: | An improved structural damage detection algorithm based on the perturbation theory is developed in this paper. It is proposed to detect structural damages by considering the high modifications of structural parameter . Numerical experimental results illustrate that this method is simple , accurate and reliable for damage location and detection. |
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| Keywords: | perturbation theory structural parameter modal strain energy damage detection |
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