Defect identification in rods subject to forced vibrations using the spatial wavelet transform

被引：16

作者：

Castro, E.

Garcia-Hernandez, M. T.

Gallego, A. ^{[1
]}

机构：

[1] Univ Granada, Dept Fis Aplicada, Escuela Univ Arquitectura Tecn, Granada, Spain

[2] Univ Jaen, Dept Fis, Escuela Politecn Super, Jaen, Spain

来源：

APPLIED ACOUSTICS | 2007年 / 68卷 / 06期

关键词：

forced vibrations; damage detection; structural health monitoring; network simulation method; wavelet transform; noise;

D O I：

10.1016/j.apacoust.2006.04.003

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Use of the wavelet transform (WT) to study the forced vibrations in a rod in order to detect the presence of a defect is proposed. The axial vibrations in an inhomogeneous rod, produced by the application of different forces, are simulated by the Network Simulation Method and the obtained response is analyzed with the WT. An analysis of the detection and location of defects for several applied forces and defects generated by locally changing density or stiffness of the rod is presented. A noise test was carried out to check the robustness of the technique in real situations. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：699 / 715

页数：17

共 12 条

[1] Transversal waves in beams via the network simulation method [J].