Dr Md Junayed Hasan j.hasan@rgu.ac.uk
Research Fellow A
A fault diagnosis framework for centrifugal pumps by scalogram-based imaging and deep learning.
Hasan, Md. Junayed; Rai, Akhand; Ahmad, Zahoor; Kim, Jong-Myon
Authors
Akhand Rai
Zahoor Ahmad
Jong-Myon Kim
Abstract
Centrifugal pumps are the most vital part of any process industry. A fault in centrifugal pump can affect imperative industrial processes. To ensure reliable operation of the centrifugal pump, this paper proposes a novel automated health state diagnosis framework for centrifugal pump that combines a signal to time-frequency imaging technique and an Adaptive Deep Convolution Neural Network model (ADCNN). First, the vibration signals corresponding to different health conditions of the centrifugal pump are acquired. Vibration signals obtained from the centrifugal pump carry a great deal of information and generally, statistical features are extracted from the vibration signals to retain meaningful fault information. However, these features are either insensitive to weak incipient faults or unsuitable for tracking severe faults, thus, decreasing the fault classification accuracy. To tackle this problem, a signal to time-frequency imaging technique is applied to the pump vibration signals. For this purpose, Continuous Wavelet Transform (CWT) is applied to decompose the vibration signals over different time-frequency scales and extract the pump fault information in both the time and frequency domains. The CWT scales form two-dimensional time-frequency images commonly referred to as scalograms. The CWT scalograms are then converted into grayscale images (SGI). Over the past few decades, CNN models have been established as an effective practice to process images for classification and pattern recognition. Consequently, the extracted CWTSGIs are finally provided as inputs to the proposed ADCNN architecture to achieve feature extraction and classification for centrifugal pump faults. The performance of the proposed diagnostic framework (CWTSGI + ADCNN) is validated with a vibration dataset collected from a testbed specifically designed for centrifugal pump diagnosis. The experimental results suggest that the proposed technique based on CWTSGI and ADCNN outperformed existing methods with an average performance improvement of 4.7 - 15.6%.
Citation
HASAN, M.J., RAI, A., AHMAD, Z. and KIM, J.-Y. 2021. A fault diagnosis framework for centrifugal pumps by scalogram-based imaging and deep learning. IEEE access [online], 9, pages 58052-58066. Available from: https://doi.org/10.1109/ACCESS.2021.3072854
Journal Article Type | Article |
---|---|
Acceptance Date | Apr 9, 2021 |
Online Publication Date | Apr 13, 2022 |
Publication Date | Dec 31, 2021 |
Deposit Date | May 13, 2022 |
Publicly Available Date | May 30, 2022 |
Journal | IEEE Access |
Electronic ISSN | 2169-3536 |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Peer Reviewed | Peer Reviewed |
Volume | 9 |
Pages | 58052-58066 |
DOI | https://doi.org/10.1109/ACCESS.2021.3072854 |
Keywords | Centrifugal pump; Continuous wavelet transformations; Scalogram; Gray images; Convolutional neural |
Public URL | https://rgu-repository.worktribe.com/output/1664555 |
Files
HASSAN 2021 A fault diagnosis
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Publisher Licence URL
https://creativecommons.org/licenses/by/4.0/
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