| 基于混沌激励和关联维数的结构微小损伤识别 |
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| 引用本文： | 刘震. 基于混沌激励和关联维数的结构微小损伤识别[J]. 水利水电技术, 2013, 44(9): 64 |
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| 作者姓名： | 刘震 |
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| 作者单位： | （河海大学水利水电学院，江苏南京210098） |
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| 摘 要： | 通过研究一种利用混沌激励和结构响应信号关联维数变化的结构微小损伤识别方法，设计了混凝土悬臂梁的损伤数值模拟试验并进行了验证。结果表明该方法可有效识别结构的微小损伤，在实际应用中比传统的固有频率识别方法更有优势。
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| 关 键 词： | 微小损伤识别 混沌激励 关联维数 |
| 收稿时间： | 2013-05-10 |
Chaotic excitation and correlation dimension based detection of minor structural damage |
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| LIU Zhen. Chaotic excitation and correlation dimension based detection of minor structural damage[J]. Water Resources and Hydropower Engineering, 2013, 44(9): 64 |
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| Authors: | LIU Zhen |
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| Affiliation: | (College of Water Conservancy and Hydro Power, Hohai University, Nanjing210098, Jiangsu, China) |
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| Abstract: | Through the study on the method for detection on the minor structural damage based on the chaotic excitation and the change of correlation dimension of the structural response signal, several numerical simulation experiments on the damage of concrete cantilever beam are designed and then verified. The results show that the minor structural damage can be effectively detected by this method, which has more advantage over the natural frequency based conventional method. |
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| Keywords: | minor damage detection chaotic excitation correlation dimension |
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