The application of Shuffled Frog Leaping Algorithm to Wavelet Neural Networks for acoustic emission source location - 08/04/14
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Abstract |
When using acoustic emission to locate the friction fault source of rotating machinery, the effects of strong noise and waveform distortion make accurate locating difficult. Applying neural network for acoustic emission source location could be helpful. In the BP Wavelet Neural Network, BP is a local search algorithm, which falls into local minimum easily. The probability of successful search is low. We used Shuffled Frog Leaping Algorithm (SFLA) to optimize the parameters of the Wavelet Neural Network, and the optimized Wavelet Neural Network to locate the source. After having performed the experiments of friction acoustic emission's source location on the rotor friction test machine, the results show that the calculation of SFLA is simple and effective, and that locating is accurate with proper structure of the network and input parameters.
Le texte complet de cet article est disponible en PDF.Keywords : Acoustic emission, Location, Wavelet Neural Network, Shuffled Frog Leaping Algorithm
Plan
Vol 342 - N° 4
P. 229-233 - avril 2014 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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