| 基于光纤光栅传感器的结构故障定位方法 |
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| 引用本文： | 刘长卫,赵勇,胡开博,倪行洁,赵婷婷. 基于光纤光栅传感器的结构故障定位方法[J]. 光电工程, 2007, 34(4): 136-139 |
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| 作者姓名： | 刘长卫 赵勇 胡开博 倪行洁 赵婷婷 |
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| 作者单位： | 1. 清华大学,自动化系,北京,100084;北京航空工程技术研究中心,北京,100076
2. 清华大学,自动化系,北京,100084 |
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| 摘 要： | 提出了一种实现结构故障定位和故障实时监测的新方法.该方法利用光纤光栅传感网络测量结构应变,得到结构的挠度矩阵,分析故障前后挠度矩阵变化,计算得出故障定位向量,进而确定损伤区域,实现了结构故障准确定位和健康状况实时监测.实验结果表明,上述方法大大提高了故障定位的准确度和实时性.
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| 关 键 词： | 光纤光栅传感器 故障定位 挠度方法 数据融合 |
| 文章编号： | 1003-501X(2007)04-0136-04 |
| 收稿时间： | 2006-10-11 |
| 修稿时间： | 2006-10-11 |
Method of damage location in a structure based on fiber Bragg grating sensors |
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| LIU Chang-wei,ZHAO Yong,HU Kai-bo,NI Xing-jie,ZHAO Ting-ting. Method of damage location in a structure based on fiber Bragg grating sensors[J]. Opto-Electronic Engineering, 2007, 34(4): 136-139 |
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| Authors: | LIU Chang-wei ZHAO Yong HU Kai-bo NI Xing-jie ZHAO Ting-ting |
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| Affiliation: | 1. Department of Automation, Tsinghua University, Beijing 100084, China; 2. Beijing Aeronautical Engineering Technology Research Centre, Beijing 100076, China |
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| Abstract: | A novel method for real-time location and monitoring of damage in a structure was proposed. Strain data of structure could be acquired by Fiber Bragg Grating (FBG) sensor network. The method compared the flexibility matrix derived from strain data before and after damage, and the Damage Location Vectors (DLVs) was calculated, which could locate the damage area, and realize precise damage location and real time structural health monitoring. The experiment result shows that the method greatly improves accuracy and real-time performance of damage location. |
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| Keywords: | Fiber Bragg grating sensor Damage location Flexibility approach Data fusion |
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