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• W4281749487 abstract "Reliability is of great significance in ensuring the safe operation of modern industry, which mainly relies on data analysis and life tests. However, as the life of mechanical systems becomes increasingly longer with the rapid development of the manufacturing industry, the collection of historical failure data becomes progressively more time-consuming. In this paper, a few-shot reliability assessment approach is proposed in order to overcome the dependence on historical data. Firstly, the vibration response of a bearing was illustrated. Then, based on a vibration response analysis, a morphological component analysis (MCA) method based on sparse representation theory was used to decompose vibration signals and extract impulse signals. After the impulse components’ reconstruction, their statistical indexes were utilized as the input observation vector of a Mixture of Gaussians Hidden Markov Model (MoG-HMM) for a reliability estimation. Finally, the experimental dataset of an aerospace bearing was analyzed via the proposed method. The comparison results illustrate the effectiveness of the proposed method of a few-shot reliability assessment." @default.
• W4281749487 created "2022-06-13" @default.
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• W4281749487 date "2022-06-01" @default.
• W4281749487 modified "2023-09-30" @default.
• W4281749487 title "Morphological Component Analysis-Based Hidden Markov Model for Few-Shot Reliability Assessment of Bearing" @default.
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• W4281749487 doi "https://doi.org/10.3390/machines10060435" @default.
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