Structural damage detection using the combination method of EMD and wavelet analysis

被引：90

作者：

Li, Helong ^{[1
]}

Deng, Xiaoyan

Dai, Hongliang

机构：

[1] S China Univ Technol, Sch Elect Business, Guangzhou 510006, Peoples R China

[2] Huazhong Agr Univ, Coll Basic Sci, Wuhan 430070, Peoples R China

[3] Guangdong Univ Business Studies, Dept Math & Computat Sci, Guangzhou 510320, Peoples R China

来源：

MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2007年 / 21卷 / 01期

关键词：

empirical mode decomposition; wavelet transform; damage detection;

D O I：

10.1016/j.ymssp.2006.05.001

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The use of the combination method of empirical mode decomposition(EMD) and wavelet analysis is explored for the detection of changes in the structural response data. Firstly, we adopt the EMD technique to decompose the response signal of structure vibration into several mono-component signals which become analytic signal by means of Hilbert transform. Then each mono-component signal is analysed via wavelet transform to detect the exact location and severity of damage. The results demonstrate that the combination method of EMD and continuous wavelet transform can be used to identify the time more sharply and effectively at which structural damage occurs than by using the wavelet transform method alone. The numerical simulation and the analysis of the response signal data from the shear building show that this method is effective. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：298 / 306

页数：9

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