Intelligent Compound Fault Diagnosis of Roller Bearings Based on Deep Graph Convolutional Network.

Sensors (Basel)

School of Mechanical Engineering, Xinjiang University, Urumqi 830047, China.

Published: October 2023

The high correlation between rolling bearing composite faults and single fault samples is prone to misclassification. Therefore, this paper proposes a rolling bearing composite fault diagnosis method based on a deep graph convolutional network. First, the acquired raw vibration signals are pre-processed and divided into sub-samples. Secondly, a number of sub-samples in different health states are constructed as graph-structured data, divided into a training set and a test set. Finally, the training set is used as input to a deep graph convolutional neural network (DGCN) model, which is trained to determine the optimal structure and parameters of the network. A test set verifies the feasibility and effectiveness of the network. The experimental result shows that the DGCN can effectively identify compound faults in rolling bearings, which provides a new approach for the identification of compound faults in bearings.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10611344PMC
http://dx.doi.org/10.3390/s23208489DOI Listing

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