The fault diagnosis method of rolling bearing under variable working conditions based on deep transfer learning

The vibration signals of rolling bearing obtained under variable working conditions do not obey the same independent distribution so that the traditional method of bearing fault diagnosis has low accuracy, a fault diagnosis method about rolling bearing based on sparse denoising autoencoder (SDAE) fo...

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Bibliographic Details
Published in:Journal of the Brazilian Society of Mechanical Sciences and Engineering Vol. 42; no. 11
Main Authors: Dong, Shaojiang, He, Kun, Tang, Baoping
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.11.2020
Springer Nature B.V
Subjects:
Algorithms
Engineering
Fault diagnosis
Feature extraction
Fourier transforms
Learning
Mechanical Engineering
Noise reduction
Roller bearings
Statistical methods
Technical Paper
Vibration
Working conditions
Fault diagnosis
Variable working conditions
Transfer learning
Rolling bearing
Sparse denoising autoencoder
ISSN:1678-5878, 1806-3691
Online Access:Get full text
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Summary:The vibration signals of rolling bearing obtained under variable working conditions do not obey the same independent distribution so that the traditional method of bearing fault diagnosis has low accuracy, a fault diagnosis method about rolling bearing based on sparse denoising autoencoder (SDAE) for deep feature extraction combining transfer learning is proposed. First, the bearing vibration signal in the time domain is transformed for frequency domain signal via Fourier transform, which is input into the SDAE for adaptive deep feature extraction. Then, the joint geometrical and statistical alignment is introduced to deal with the deep feature samples for reducing the domain discrepancy both statistically and geometrically. Finally, the k-nearest neighbor classification algorithm is used for completing the fault diagnosis of rolling bearing under variable working conditions. The experimental results show that the method presented in the paper improves the accuracy rate of fault diagnosis about rolling bearing under variable working conditions, verifies its feasibility and effectiveness.
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ISSN:1678-5878
1806-3691
DOI:10.1007/s40430-020-02661-3