基于连续小波空间变换的工程结构损伤识别

薛祥; 霍达; 滕海文

doi:10.13204/j.gyjz200705003

基于连续小波空间变换的工程结构损伤识别

doi: 10.13204/j.gyjz200705003

1.
北京工业大学建筑工程学院北京 100022

基金项目:

国家自然科学基金资助项目(50378007);北京市自然科学基金资助项目(8031001)

详细信息

作者简介:
薛祥男 1979年6月出生硕士

中图分类号: TU317
计量
- 文章访问数: 70
- HTML全文浏览量: 9
- PDF下载量: 31
- 被引次数: 0
出版历程
- 收稿日期: 2005-12-20
- 刊出日期: 2007-05-20

DAMAGE INDENTIFICATION OF ENGINEERING STRUCTURE BY SPATIAL CONTINUOUS WAVELET TRANSFORM

1.
Faculty of Architectural Engineering,Beijing University of Technology Beijing 100022

摘要

摘要: 利用连续小波空间变换技术,对工程结构损伤信号进行分析,从而识别结构的损伤位置。对不同的边界条件(如简支梁和固端梁)下不同的损伤形式(如竖直裂缝和斜裂缝)引起结构损伤的情况进行试验。结果表明,用连续小波空间变换分析识别结构损伤的结果受一定边界条件的影响,而裂缝的形式对识别效果几乎没有产生影响。但总的来说,小波空间变换都能够方便简捷、准确可靠地识别出结构的损伤位置。
- 小波空间变换 /
- 工程结构 /
- 损伤识别
Abstract: A structural damage identification technique based on wavelet transform of spatial structural response measurements is discussed. The two different boundary conditions considered are simply supported and fixed end support, and the different damage forms (crack characteristics) are investigated by numerical experiments. The results of the simulation show that boundary conditions have some effect on bridge damage detection, but the damage forms have no effect on it. All in all, if a suitable wavelet is selected, the method is capable to extract damage information from the response signal in a simple and reliable way.
- spatial wavelet transform /
- engineering structure /
- damage identification

HTML全文

参考文献(8)

姜增国, 赵志国. 大型桥梁健康诊断的研究与发展初探. 交通科技, 2004(4): 23-25

Ser Tong Quek, Quan Wang. Sensitivity Analysis of Crack Detection inBeams by Wavelet Technique. International Journal of M echanicalSciences, 2001, 43: 2 899-2 910

Ovanesova A V, Suac rez L E. Applications of Wavelet Transforms toDamage. Engineering Structures, 2004, 26: 39-49

Angelo Gentile, Arcangelo M essina. On the Continuous WaveletTransforms A pplied to Discrete V ibrational Data for Detecting O penCracks in Damaged Beams. International Journal of Solids and Structures,2003, 40: 295-315

Chih Chieh Chang, Lien Wen Chen. Damage Detection of a RectangularPlate by Spatial Wavelet Based Approach. Applied Acoustics, 2004, 65:819-832

Chih Chieh Chang, Lien Wen Chen. Detection of the Location and Size ofCracks in the Multiple Cracked Beam by Spatial Wavelet BasedApproach. Journal of Sound and V ibration, 2004, 261: 715-727

Quan Wang, Xiaomin Deng. Damage Detection with Spatial Wavelets.International Journal of Solids and Structures, 1999, 36: 2 332-2 357

彭玉华. 小波变换与工程应用. 北京: 科学出版社, 1999

施引文献

资源附件(0)

访问统计