Wavelet-based sensitivity analysis of the impulse response function for damage detection

被引：30

作者：

Law, S. S. ^{[1
]}

Li, X. Y. ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Dept Civil & Struct Engn, Kowloon, Hong Kong, Peoples R China

来源：

JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME | 2007年 / 74卷 / 02期

关键词：

D O I：

10.1115/1.2189875

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

This paper discusses the extraction of the wavelet-based impulse response function from the acceleration response using the discrete wavelet transform (DWT). The analytical formulation of the sensitivity of the DWT coefficient of the impulse response function with respect to a system parameter is then presented for structural damage detection. A numerical example with a 31-bar plane truss structure is used to verify the proposed method with different damage scenarios with or without model error and noise effect.

引用

页码：375 / 377

页数：3

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