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

  • E. Castro /
  • M. T. García-Hernández /
  • A. Gallego
Journal ar
Applied Acoustics
  • Volumen: 68
  • Número: 6
  • Fecha: 01 June 2007
  • Páginas: 699-715
  • ISSN: 0003682X
  • Source Type: Journal
  • DOI: 10.1016/j.apacoust.2006.04.003
  • Document Type: Article
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. © 2006 Elsevier Ltd. All rights reserved.

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