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Bearing Fault Detection Using Artificial Neural Networks and Genetic Algorithm

Abstract

A study is presented to compare the performance of bearing fault detection using three types of artificial neural networks (ANNs), namely, multilayer perceptron (MLP), radial basis function (RBF) network, and probabilistic neural network (PNN). The time domain vibration signals of a rotating machine with normal and defective bearings are processed for feature extraction. The extracted features from original and preprocessed signals are used as inputs to all three ANN classifiers: MLP, RBF, and PNN for two-class (normal or fault) recognition. The characteristic parameters like number of nodes in the hidden layer of MLP and the width of RBF, in case of RBF and PNN along with the selection of input features, are optimized using genetic algorithms (GA). For each trial, the ANNs are trained with a subset of the experimental data for known machine conditions. The ANNs are tested using the remaining set of data. The procedure is illustrated using the experimental vibration data of a rotating machine with and without bearing faults. The results show the relative effectiveness of three classifiers in detection of the bearing condition.

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Correspondence to B Samanta.

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Samanta, B., Al-Balushi, K.R. & Al-Araimi, S.A. Bearing Fault Detection Using Artificial Neural Networks and Genetic Algorithm. EURASIP J. Adv. Signal Process. 2004, 785672 (2004). https://doi.org/10.1155/S1110865704310085

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  • DOI: https://doi.org/10.1155/S1110865704310085

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