Title: Optimisation assisted CNN framework for bearing fault diagnosis

Authors: Azim Naz M.; R. Sarath

Addresses: Department of Electronics and Communications, Noorul Islam Centre for Higher Education, Kumaracoil, Thuckalay, Tamilnadu, India ' Department of Electronics and Instrumentation, Noorul Islam Center for Higher Education, Kumaracoil, Thuckalay, Tamilnadu, India

Abstract: Nowadays, intellectual fault diagnosis mechanism with DL schemes was extensively deployed in production firms to develop the effectiveness of fault diagnosis. The rolling bearings connect the support and rotor and are considered as a critical element in rotating equipments. Nevertheless, the working state of bearing varies based on composite operation demand that may drastically corrupt the performances of the intellectual fault diagnosis technique. Thereby, this scheme develops novel fault diagnosis schemes that included the two most important stages like 'feature extraction' and 'classification'. Initially, the features namely, 'empirical wavelet transform', 'empirical mode decomposition' and 'wavelet transform' are extracted. Subsequent to this, the derived features are classified via 'optimised convolutional neural network' is employed. Further, to get better accuracy using adopted model, the weights of CNN is tuned via self-adaptive moth-flame optimisation. Eventually, the primacy of the offered scheme is proven regarding varied measures. Eventually, the proposed technique has obtained a superior value of 0.922, and it is 1.62%, 1.92%, 50.76%, and 57.34%, superior to existing MFO, FF, SVM and RF models for dataset 1.

Keywords: fault diagnosis; EWT features; EMD features; CNN; SA-MFA algorithm.

DOI: 10.1504/IJNVO.2022.124767

International Journal of Networking and Virtual Organisations, 2022 Vol.26 No.4, pp.291 - 308

Received: 20 Sep 2021
Accepted: 10 Mar 2022
Published online: 08 Aug 2022 *

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