Journal
IEEE TRANSACTIONS ON ENERGY CONVERSION
Volume 37, Issue 1, Pages 466-474Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TEC.2021.3085909
Keywords
Feature extraction; Fault detection; Monitoring; Rotating machines; Machine learning; Convolution; Vibrations; Bearing fault; convolution neural network; fault detection and diagnosis; variational mode decomposition; machine learning
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This paper proposes an early diagnosis approach for bearing faults based on VMD and 1D-CNN, which achieves fault detection and diagnosis through feature extraction and multi-scale feature extraction, and is evaluated using experimental dataset. The results show that this approach has great potential in bearing degradation monitoring.
The monitoring of rolling element bearing is indexed as a critical task for condition-based maintenance in various industrial applications. It allows avoiding unscheduled maintenance operations while decreasing their cost. For this purpose, various methodologies were developed to ensure accurate and efficient monitoring. In this context, this paper proposes an approach for bearing fault early diagnosis based on the variational mode decomposition (VMD), used as a notch filter for dominant mode cancellation, and a machine learning approach, namely the one-dimensional convolution neural network (1D-CNN), for detection and diagnosis purposes. Specifically, the proposed approach first performs features extraction using VMD for fault detection, and then triggers to multi-scale features extraction using CNN convolution and pooling layers for classification and diagnosis. The proposed bearing fault detection and diagnosis approach is evaluated, in terms of robustness and performances, using the well-known Case Western Reserve University experimental dataset. In addition, performances are evaluated versus well-established demodulation techniques, in terms of fault detection, and machine learning strategies, in terms of fault diagnosis. The achieved results show that the proposed VMD notch filter-based 1D-CNN approach is clearly promising for bearing degradation monitoring.
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