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Title: Three-stage Hybrid Fault Diagnosis for Rolling Bearings with Compressively-sampled data and Subspace Learning Techniques
Authors: Nandi, AK
Ahmed, HOA
Keywords: Machine Condition Monitoring;Bearing Fault Classification;Compressive Sampling;Principal Component Analysis;Linear Discriminant Analysis;Canonical Correlation Analysis
Issue Date: 2018
Publisher: Institute of Electrical and Electronics Engineers
Citation: IEEE Transactions on Industrial Electronics
Abstract: To avoid the burden of much storage requirements and processing time, this paper proposes a three-stage hybrid method, Compressive Sampling with Correlated Principal and Discriminant Components (CSCPDC), for bearing faults diagnosis based on compressed measurements. In the first stage, Compressive Sampling (CS) is utilised to obtain compressively-sampled signals from raw vibration data. In the second stage, an effective multi-step feature learning algorithm obtains fewer features from correlated principal and discriminant attributes from the compressively-sampled signals, which are then concatenated to increase the performance. In the third stage, with these concatenated features, Multi-class Support Vector Machine (SVM) is used to train, validate, and classify bearing faults. Results show that the proposed method, CS-CPDC, offers high classification accuracies, reduced computation time, and storage requirement, with fewer measurements.
ISSN: 1557-9948
Appears in Collections:Dept of Electronic and Computer Engineering Embargoed Research Papers

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