Discrete degradation modeling using generalized mixed effect model
سال انتشار: 1400
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 193
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شناسه ملی سند علمی:
JR_JSMTA-2-1_003
تاریخ نمایه سازی: 19 اردیبهشت 1401
چکیده مقاله:
Degradation modeling is an effective approach for reliability assessment and predicting of remaining useful life in order to investigate the relation between failure time and degradation of a system or unit. The possibility of an association between degradation of the unit during the time and the effects of covariates on degradation processes should be taken into account in the model to improve the explanatory capabilities of degradation models. Sometimes, the exact amount of degradation could not be observed because of time, cost, and measurement tools limitations. Therefore, approximate degradation values can be compared with a critical threshold. In this paper, the degradation processes modeled with a generalized linear mixed-effect model in order to take into account the correlation between times. Also, maximum likelihood estimation and Bayesian estimate of parameters are derived.
کلیدواژه ها:
Generalized linear mixed effect models ، Degradation critical threshold ، Degradation true path ، Degradation Bayesian modeling
نویسندگان
Fatemeh Hassantabar Darzi
Department of Statistics, University of Tehran, Tehran, Iran
Hasan Misaii
Department of Statistics, University of Tehran, Tehran, Iran
Zahra Rezaei Ghahroodi
Department of Statistics, University of Tehran, Tehran, Iran
Firoozeh Haghighi
Department of Statistics, University of Tehran, Tehran, Iran