Bearing fault diagnosis method and system based on Transform and data enhancement

Abstract

The invention discloses a bearing fault diagnosis method and system based on Transform and data enhancement. The method comprises the following steps: acquiring data in a bearing operation process; performing data enhancement processing on the acquired data, and dividing the enhanced data into a training data set X and a verification data set Y; constructing a feature extraction network based on a Transform; establishing a network training and verification framework, selecting data of the training data set X and the verification data set Y in batches, and sending the data into the established feature extraction network to obtain a feature extraction network output result; and analyzing an output result of the feature extraction network, obtaining a fault diagnosis type of the bearing, and completing bearing fault diagnosis. According to the method, the network performance is generalized by using a data resampling enhancement method, and meanwhile, the Transform is used as a feature extractor, so that the fault diagnosis verification accuracy of the method reaches 95%.

Description

technical field [0001] The invention belongs to the technical field of fault diagnosis, and in particular relates to a bearing fault diagnosis method and system based on Transformer and data enhancement. Background technique [0002] With the development of industry, the demand for high-precision automation equipment continues to increase. The more sophisticated and complex the equipment, the more difficult it is to monitor its operating status. Bearings are the most commonly used parts in rotating machinery, and their operating status often directly determines the quality of the equipment. The occurrence of bearing failure will lead to a series of consequences such as serious downtime, high repair cost, and even potential loss of productivity. Therefore, how to improve the fault diagnosis ability of mechanical equipment to make it work normally has become one of the directions of industrial development. [0003] At present, the mechanical fault diagnosis technology based ...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a bearing fault diagnosis method and system based on Transformer and data enhancement to solve the problem that the feature extraction in the beari...

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