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- W3124300350 abstract "The localized faults of rolling bearings can be diagnosed by its vibration impulsive signals. However, it is always a challenge to extract the impulsive feature under background noise and non-stationary conditions. This paper investigates impulsive signals detection of a single-point defect rolling bearing and presents a novel data-driven detection approach based on dictionary learning. To overcome the effects harmonic and noise components, we propose an autoregressive-minimum entropy deconvolution model to separate harmonic and deconvolve the effect of the transmission path. To address the shortcomings of conventional sparse representation under the changeable operation environment, we propose an approach that combines K-clustering with singular value decomposition (K-SVD) and split-Bregman to extract impulsive components precisely. Via experiments on synthetic signals and real run-to-failure signals, the excellent performance for different impulsive signals detection verifies the effectiveness and robustness of the proposed approach. Meanwhile, a comparison with the state-of-the-art methods is illustrated, which shows that the proposed approach can provide more accurate detected impulsive signals." @default.
- W3124300350 created "2021-02-01" @default.
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- W3124300350 date "2021-06-01" @default.
- W3124300350 modified "2023-10-18" @default.
- W3124300350 title "A Novel Rolling Bearing Vibration Impulsive Signals Detection Approach Based on Dictionary Learning" @default.
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- W3124300350 doi "https://doi.org/10.1109/jas.2020.1003438" @default.
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