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- W2374499097 abstract "Bearings are important units in a rotary machinery, their performance degradation assessment is more effective than fault pattern recognition for proactive maintenance to realize near-zero downtime. Wavelet package decomposition (WPD) can describe signals finely, statistical learning theory (SLT) based support vector data description (SVDD) is one kind of classification method holding excellent computing ability. Here, a bearing performance degradation assessment method based on them was proposed. This method used node energy of WPD to form feature vectors, and needed normal data to build knowledge database with SVDD, then quantitative degradation of test data could be realized. Application results for a bearing with different defect sizes and its whole life time from accelerated life test verified this method’s feasibility and validity." @default.
- W2374499097 created "2016-06-24" @default.
- W2374499097 creator A5087924017 @default.
- W2374499097 date "2009-01-01" @default.
- W2374499097 modified "2023-09-25" @default.
- W2374499097 title "Wavelet package-support vector data description applied in bearing performance degradation assessment" @default.
- W2374499097 hasPublicationYear "2009" @default.
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