OPTIMAL (T, S)-POLICIES IN A DISCRETE-TIME OPPORTUNITY-BASED AGE REPLACEMENT: AN EMPIRICAL STUDY

In this paper we consider the optimal (T, S)-policies in a discrete-time opportunity-based age replacement (DOAR), where S is a restricted duration of opportunities and T (≥ S + 1) is a preventive age replacement time. Based on the expected cost per unit time in the steady-state as a criterion of op...

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Bibliographic Details
Published inAdvanced Reliability Modeling II pp. 219 - 226
Main Authors DOHI, T., KAIO, N., OSAKI, S.
Format Book Chapter
LanguageEnglish
Japanese
Published WORLD SCIENTIFIC 01.07.2006
Subjects
III. MAINTENANCE
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ISBN9814478121
9789812773760
9812567585
9789814478120
9812773762
9789812567581
DOI10.1142/9789812773760_0026

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Summary:In this paper we consider the optimal (T, S)-policies in a discrete-time opportunity-based age replacement (DOAR), where S is a restricted duration of opportunities and T (≥ S + 1) is a preventive age replacement time. Based on the expected cost per unit time in the steady-state as a criterion of optimality, we formulate totally 6 DOAR models and derive numerically the optimal (T, S)-policies minimizing the respective expected costs per unit time. A numerical example with real failure time data investigates the dependence of the optimal DOAR policies and their associated minimum expected costs on parameters of the discrete Weibull failure time distribution.
ISBN:9814478121
9789812773760
9812567585
9789814478120
9812773762
9789812567581
DOI:10.1142/9789812773760_0026