|本期目录/Table of Contents|

[1]滕海文,王 涛.基于轴向振动的结构损伤识别方法[J].天津大学学报(自然科学版),2009,(12):1061-1066.
 TENG Hai-wen,WANG Tao.Damage Identification Method Based on Axial Vibration[J].Journal of Tianjin University,2009,(12):1061-1066.
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基于轴向振动的结构损伤识别方法()
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《天津大学学报(自然科学版)》[ISSN:0493-2137/CN:12-1127/N]

卷:
期数:
2009年12
页码:
1061-1066
栏目:
建筑工程
出版日期:
2009-12-15

文章信息/Info

Title:
Damage Identification Method Based on Axial Vibration
文章编号:
0493-2137(2009)12-1061-06
作者:
滕海文12王 涛1
1. 北京工业大学建筑工程学院,北京 100124; 2. 北京工业大学城市与工程安全减灾省部共建教育部重点实验室,北京 100124
Author(s):
TENG Hai-wen 12WANG Tao 1
 1. College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China; 2. Key Lab of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology,Beijing 100124,China
关键词:
损伤识别轴向振动支座形式模态分析
Keywords:
damage identificationaxial vibrationsupport formmodal analysis
分类号:
TU311
文献标志码:
A
摘要:
在理论上推导悬臂梁轴向振动微分方程及其3 种支座形式的解析解的基础上,提出了一种基于轴向振动的结构损伤识别方法.该方法以轴向振动的低阶模态振型的二阶导数为损伤指标,无需结构损伤前的完好动力指纹.该指标对结构损伤的位置和程度均很敏感,既能精确定位损伤,又能标定损伤程度,即在损伤位置将发生相反方向的突变,且突变幅度随损伤程度的增大而增大.最后对方钢管构件进行了试验,测试结果证明了该方法的可行性.
Abstract:
A damage identification method based on axial vibration was presented on the basis of theoretical derivation axial vibration differential equation and analytical solution of three kinds of support form. This method takes the second derivative of low-level axial vibration modal shape as damage index without the dynamic fingerprints of undamaged structure. The index is very sensitive to both the location and degree of structural damage, which can accurately locate and calibrate the damage. That is, it will change to the opposite direction suddenly in the damage position. Mutations amplitude increases with the degree of damage. Steel components are experimented and tested, the results also proved the feasibility and viability of the proposed method.

参考文献/References:

[1] 欧进萍. 重大工程结构的智能监测和健康诊断(第十一届结构工程学术会议特邀报告)[J]. 工程力学, 2002,19(增):44-53. Ou Jinping. Health diagnosis and monitoring in major engineering structure(Invited paper in the eleventh national conference on structural engineering)[J]. Engineering Mechanics ,2002 ,19(Supp1) :44-53(in Chinese).
[2] 杨秋伟. 基于振动的结构损伤识别方法研究进展[J]. 振动与冲击,2007,26(10):86-91,100. Yang Qiuwei. A review of vibration-based structural damage identification methods[J]. Journal of Vibration and Shock,2007,26(10):86-91,100(in Chinese).
[3] 滕海文,霍 达,姜雪峰,等. 结构损伤位置识别的组合指标法[J]. 北京工业大学学报,2007,33(5):493-497. Teng Haiwen,Huo Da,Jiang Xuefeng,et al. Combination index of damage locating detection for structures[J]. Journal of Beijing University of Technology,2007, 33(5):493-497(in Chinese).
[4] 滕海文,许树峰,李秀芬,等. 结构裂缝损伤识别的连续小波分析方法[J]. 振动与冲击,2008,27(8):155-157. Teng Haiwen,Xu Shufeng,Li Xiufen,et al. Analysis of continuous wavelet for crack detection in structures[J]. Journal of Vibration and Shock,2008,27(8):155-157(in Chinese).
[5] 朱 子. 基于振动特性的结构损伤识别理论与方法研究[D]. 北京:清华大学土木水利学院,2006. Zhu Zi. Study on the Theory and Method of Vibration Based Structure Damage[D]. Beijing:School of Civil Engineering,Tsinghua University,2006(in Chinese).
[6] 李忠献,齐怀展,朱劲松. 基于模态曲率法的大跨度斜拉桥损伤识别[J]. 地震工程与工程振动,2007,27(4): 122-126. Li Zhongxian,Qi Huaizhan ,Zhu Jinsong. Damage identification for long-span cable-stayed bridge based on modal curvature method[J]. Journal of Earthquake Engineering and Engineering Vibration,2007,27(4): 122-126(in Chinese).
[7] 闫桂荣,段忠东,欧进萍. 基于结构振动信息的损伤识别研究综述[J]. 地震工程与工程振动,2007,27(3): 95-103. Yan Guirong,Duan Zhongdong,Ou Jinping. Review on structural damage detection based on vibration data[J]. Journal of Earthquake Engineering and Engineering Vibration,2007,27(3):95-103(in Chinese).
[8] 刘晶波,杜修力. 结构动力学[M]. 北京:机械工业出版社,2005. Liu Jingbo,Du Xiuli. Dynamics of Structures[M]. Beijing:China Machine Press,2005(in Chinese).
[9] Xu G Y, Zhu W D, Emory B H. Experimental and numerical investigation of structural damage detection using changes in natural frequencies[J]. Journal of Vibration and Acoustics,2007,129(6):686-700.

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备注/Memo

备注/Memo:
收稿日期:2008-11-21;修回日期:2009-05-04.
基金项目:国家自然科学基金资助项目(50808005).
 作者简介:滕海文(1974— ),女,博士,副教授.通讯作者:滕海文,tenghaiwen@bjut.edu.cn.
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