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- W3213719013 abstract "This paper proposes a new feature extraction method using time–frequency image data for fault diagnosis of variable-speed rotating machinery. Time-frequency representation (TFR) is widely used to analyze time-varying behaviors of rotating machinery. Recently, methods have been developed to extract fault-related features from TFR image data. However, these methods can be only applied to in-phase TFR image data, or have limited sensitivity because they cannot utilize the characteristics of faults in rotating machinery. Therefore, the research outlined in this paper proposes a new fault feature for rotating machinery under variable-speed conditions. The proposed feature enhances sensitivity by exploiting faulty behaviors in the TFR image data. Two experimental case studies are presented to demonstrate the performance of the proposed method: a planetary gearbox and a spur gearbox. From the results, we conclude that the proposed method shows higher fault sensitivity than the previous image-based features, while showing consistent behavior under different phases of TFR image data." @default.
- W3213719013 created "2021-11-22" @default.
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- W3213719013 date "2022-03-01" @default.
- W3213719013 modified "2023-10-16" @default.
- W3213719013 title "An image-based feature extraction method for fault diagnosis of variable-speed rotating machinery" @default.
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- W3213719013 doi "https://doi.org/10.1016/j.ymssp.2021.108524" @default.
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