Articles with "sparse envelope" as a keyword



Multi-Channel Data-Driven Broken Rotor Bar Fault Diagnosis Using Sparse Envelope Spectral Analysis

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Published in 2025 at "IEEE Transactions on Energy Conversion"

DOI: 10.1109/tec.2025.3531688

Abstract: Precise and prompt diagnosis of broken rotor bar (BRB) faults is essential for upholding the reliability of induction motors. Spectral analysis of motor current is the primary technology for diagnosing BRB faults, but its effectiveness… read more here.

Keywords: multi channel; envelope spectral; spectral analysis; sparse envelope ... See more keywords

Sparse Envelope Spectra for Feature Extraction of Bearing Faults Based on NMF

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Published in 2019 at "Applied Sciences"

DOI: 10.3390/app9040755

Abstract: Periodic impulses and the oscillation response signal are the vital feature indicators of rolling bearing faults. However, finding the suitable feature frequency band is usually difficult due to the interferences of other components and multiple… read more here.

Keywords: feature extraction; sparse envelope; envelope; frequency ... See more keywords