Abstract
In order to identify the faults of rotating machinery, classification process can be divided into two stages: one is the signal preprocessing and the feature extraction; the other is the recognition process. In the preprocessing and feature extraction stage, the higher-order statistics (HOS) is used to extract features from the vibration signals. In the recognition process, two kinds of neural network classifier are used to evaluate the classification results. These two classifiers are self-organizing feature mapping (SOM) network for collecting data at the initial stage and learning vector quantization (LVQ) network at the identification stage. The experimental results obtained from HOS as preprocessor to extract the features of fault are clearer than those obtained from the power spectrum. In addition, the recognizable rate by using either SOM or LVQ as classifiers is 100%.
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Wang, CC., James Too, GP. Rotating machine fault detection based on HOS and artificial neural networks. Journal of Intelligent Manufacturing 13, 283–293 (2002). https://doi.org/10.1023/A:1016024428793
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DOI: https://doi.org/10.1023/A:1016024428793