Degradation modeling and RUL prediction using Wiener process subject to multiple change points and unit heterogeneity
Reliability Engineering & System Safety(2018)
摘要
• A multiple change-point Wiener process based prognostic framework is proposed.• To consider unit-to-unit heterogeneity, a fully Bayesian approach is developed.• An empirical two-stage process is proposed for model estimation.• Online individual model updating is achieved through an exact recursive algorithm.• The effectiveness is demonstrated through simulation and real case studies.
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关键词
Wiener process,Multiple change-point model,Degradation modeling,Remaining useful life prediction
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