Paper Title:
Application of the Higher Modes to Crack Identification in a Cantilever Beam
  Abstract

Damage detection by the wavelet transform of the fundamental vibration mode receives much attention recently. However, the higher vibration modes were hardly discussed in past literatures. As we know they are more sensitive to the crack comparing with the fundamental mode, which bring abundant damage information. The objective of this study is to show that the first four modes are available using wavelet transform for crack parameter identification. Specially, using the higher mode could result in an excellent quality of crack identification when the mode data was contaminated by noise. But too higher modes have possibly adverse effects on the quality of crack detection.

  Info
Periodical
Edited by
L. Garibaldi, C. Surace, K. Holford and W.M. Ostachowicz
Pages
595-600
DOI
10.4028/www.scientific.net/KEM.347.595
Citation
Y. X. Liu, W. W. Zhang, H. W. Ma, "Application of the Higher Modes to Crack Identification in a Cantilever Beam", Key Engineering Materials, Vol. 347, pp. 595-600, 2007
Online since
September 2007
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