| 基于不完整频响函数的结构损伤识别方法 |
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| 引用本文： | 李柳生,蔡晶.基于不完整频响函数的结构损伤识别方法[J].四川建筑科学研究,2011,37(5):82-85. |
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| 作者姓名： | 李柳生 蔡晶 |
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| 作者单位： | 1. 南京工业大学,江苏南京210009;江西蓝天学院土木系,江西南昌330029
2. 南京工业大学,江苏南京,210009 |
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| 摘 要： | 对土木工程结构的分析模型,在传感器不完整布置的情况下,推导基于不完整频响函数的"定性—定位—定量"的损伤识别方法。首先,利用不完备的频响函数图形的偏移程度进行损伤的定性判定;然后,建立损伤识别指标对损伤位置进行识别;最后,推导损伤定量计算方法,对损伤程度进行评估。仿真结果表明,本文提出损伤识别3阶段方法,对结构损伤探测的评估能得到比较满意的结果。
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| 关 键 词： | 频响函数 传感器 损伤定性 自由度 |
An identification method of structural damage based on incomplete frequency response functions |
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| LI Liusheng,CAI Jing.An identification method of structural damage based on incomplete frequency response functions[J].Building Science Research of Sichuan,2011,37(5):82-85. |
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| Authors: | LI Liusheng CAI Jing |
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| Affiliation: | LI Liusheng1,2,CAI Jing1(1.Nanjing University of Technology,Nanjing 210009,China,2.School of Civil Engineering,Jiangxi Bluesky University,Nanchang 330029,China) |
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| Abstract: | Based on the sensor is incomplete arrangement in the model of civil engineering structures.Derived to be incomplete frequency response function and the proposed damage identification method.This method is a three-stage: diagnosis-localization-quantification.The first of all,using the frequency response function the offset level of graphics to diagnosis of structural damage.Then,we localize the damage locations by using damage index of different nodes or degree-of-freedoms,which can be obtained from measured... |
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| Keywords: | frequency response function sensor diagnosis of structural damage degree-of-freedom |
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