| 面向结构损伤预警的小波包能量谱识别参数 |
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| 引用本文： | 丁幼亮,李爱群,邓扬.面向结构损伤预警的小波包能量谱识别参数[J].东南大学学报(自然科学版),2011,41(4):824-828. |
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| 作者姓名： | 丁幼亮 李爱群 邓扬 |
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| 作者单位： | 东南大学混凝土及预应力混凝土结构教育部重点实验室,南京,210096 |
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| 基金项目： | 国家自然科学基金资助项目(50808041,50978056); 教育部博士点基金新教师资助项目(200802861011) |
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| 摘 要： | 对Benchmark钢框架结构试验数据和润扬大桥悬索桥监测数据进行了小波包能量谱损伤预警分析,在此基础上详细考察了不同小波函数和小波包分解层次的损伤预警效果.结果表明:Daubechies小波和Coiflets小波适用于结构损伤预警,并且实际工程中应采用较大的小波函数阶次以获取较好的时域分辨能力和损伤预警能力；小波包分...
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| 关 键 词： | 结构损伤预警 小波包分析 小波包能量谱 小波函数 小波包分解层次 |
Parameters for identification of wavelet packet energy spectrum for structural damage alarming |
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| Ding Youliang,Li Aiqun,Deng Yang.Parameters for identification of wavelet packet energy spectrum for structural damage alarming[J].Journal of Southeast University(Natural Science Edition),2011,41(4):824-828. |
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| Authors: | Ding Youliang Li Aiqun Deng Yang |
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| Affiliation: | Ding Youliang Li Aiqun Deng Yang(Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education,Southeast University,Nanjing 210096,China) |
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| Abstract: | The damage alarming analysis based on wavelet packet energy spectrum was performed with regard to the experimental data of Benchmark steel frame structure and online monitoring data of Runyang Suspension Bridge,and on the basis of which the damage alarming effects using various wavelet functions and wavelet packet decomposition levels were investigated in detail.Results reveal that the Daubechies wavelet functions and Coiflets wavelet functions are applicable to structural damage alarming and in real applic... |
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| Keywords: | structural damage alarming wavelet packet analysis wavelet packet energy spectrum wavelet function wavelet packet decomposition level |
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