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| 基于不变环境振动的结构损伤识别方法 | |
| 引用本文： | 姚志远,汪凤泉,赵淳生. 基于不变环境振动的结构损伤识别方法[J]. 振动工程学报, 2005, 18(1): 59-63 |
| 作者姓名： | 姚志远 汪凤泉 赵淳生 |
| 作者单位： | 1. 南京航空航天大学超声电机研究中心,江苏,南京,210016;东南大学工程力学系,江苏,南京,210096 2. 东南大学工程力学系,江苏,南京,210096 3. 南京航空航天大学超声电机研究中心,江苏,南京,210016 |
| 基金项目： | 国家自然科学基金资助项目 (5 9775 0 2 2 ) |
| 摘 要： | 建立了受随机外力激励作用的损伤识别理论模型和计算方法 ,提出一种在线结构损伤识别方法。讨论一个15层框架结构 ,数值仿真结果表明 ,该方法具有较高的辨别率和计算精度。它能够使用在桥梁和建筑的健康监测中。 |
| 关 键 词： | 结构动力学 损伤识别 参数识别 在线识别技术 |
| 文章编号： | 1004-4523(2005)01-0059-05 |
| 修稿时间： | 2003-08-10 |
A structural damage identification method based on stable ambient excitation |
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| YAO Zhi-yuan,WANG Feng-quan,ZHAO Chunsheng. A structural damage identification method based on stable ambient excitation[J]. Journal of Vibration Engineering, 2005, 18(1): 59-63 | |
| Authors: | YAO Zhi-yuan WANG Feng-quan ZHAO Chunsheng |
| Affiliation: | YAO Zhi-yuan 1,2,WANG Feng-quan2,ZHAO Chunsh eng1 |
| Abstract: | It is widely interested for the damage identificatio n technique to be used in structures, and Many methods of damage identification are established, in which the input and output data of the structural system mus t be measured. Now, the ambient vibration method is extensively concerned, becau se it only uses the output data. The damage identification method is of multi-c hannel and time-domain. Based on ambient vibration, an online identification me tho d for structures was put forward. It included a theoretical model and numerical method. The numerical simulation results for five-stories builcling showed that the method was of preciseness and effectiveness. This method may be used i n health monitoring for bridges and architecture. |
| Keywords: | structural dynamics damage identification parameter identification online ide ntification technique |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |