Damage detection of cracked beams based on wavelet transform

被引：30

作者：

Li, Z ^{[1
]}

Xia, SM ^{[1
]}

Wang, J ^{[1
]}

Su, XY ^{[1
]}

机构：

[1] Peking Univ, Dept Engn Sci & Mech, Beijing 100871, Peoples R China

来源：

INTERNATIONAL JOURNAL OF IMPACT ENGINEERING | 2006年 / 32卷 / 07期

基金：

中国国家自然科学基金;

关键词：

continuous wavelet transform; damage detection; flexural wave;

D O I：

10.1016/j.ijimpeng.2004.09.012

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this paper, a damage detection method based on a continuous wavelet transform is proposed and applied to analyze flexural wave in a cracked beam. For flexural waves obtained from FEM or experiments, some useful characters of the incident, reflected and transmitted waves at a certain frequency can be extracted by the Gabor wavelet to exactly identify the damage location and its extent. The orientation of an inclined crack is also discussed in the paper. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：1190 / 1200

页数：11

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