Paper Title:
Linear Location of Acoustic Emission Source Based on LS-SVR and NGA
  Abstract

To solve the fatigue damage location problem of helicopter moving component, a new approach for linear location of acoustic emission (AE) source based on least squares support vector machine for regression (LS-SVR) and niche genetic algorithm (NGA) was proposed. Several time domain parameters of AE signal were taken as the inputs, and the linear coordinates of the breakpoints as the output. The sharing function based niche genetic algorithm is used to select the LS-SVR parameters automatically. The results of pencil lead break location experiment on specimen of carbon fiber materials indicate that the proposed approach can implement linear location of AE source effectively, and has better performance on convergence rate and location accuracy than RBF and BP neural network.

  Info
Periodical
Chapter
Chapter 2: Inorganic Nonmetallic Materials
Edited by
Linli Xu, Wenya Tian and Elwin Mao
Pages
302-306
DOI
10.4028/www.scientific.net/AMM.80-81.302
Citation
J. T. Yu, M. L. Ding, Q. Wang, "Linear Location of Acoustic Emission Source Based on LS-SVR and NGA", Applied Mechanics and Materials, Vols. 80-81, pp. 302-306, 2011
Online since
July 2011
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Price
$32.00
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