Paper Title:
Simulation Study of Damage Identification Method Based on Lamb Wave Scattering in Aluminium Plate
  Abstract

The propagation of scattering Lamb wave in plate was simulated using transient dynamic analysis in ANSYS. In order to extract the characteristic information of received signal for damage identification, the short time Fourier transform based on time-frequency analysis was utilized, and then the energy distribution and envelop of received signal were obtained. Based on the displacement contour of simulation and energy distribution, the propagation of scattering wave in plate with a through hole was examined. Also, a mathematic relationship between damage location and scattering signal was developed, with the help of wave propagation path through actuator, damage and sensor. A nonlinear optimization method was applied on the mathematic relationship to obtain the damage location. The damage identification method using scattering Lamb wave was therefore established.

  Info
Periodical
Advanced Materials Research (Volumes 383-390)
Chapter
Chapter 30: Automation, Mechatronics and Robotics
Edited by
Wu Fan
Pages
7362-7368
DOI
10.4028/www.scientific.net/AMR.383-390.7362
Citation
Z. H. Tian, H. Y. Li, H. Xu, "Simulation Study of Damage Identification Method Based on Lamb Wave Scattering in Aluminium Plate", Advanced Materials Research, Vols. 383-390, pp. 7362-7368, 2012
Online since
November 2011
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Price
$32.00
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