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A summary of discrete replacement policies

1984; Elsevier BV; Volume: 17; Issue: 3 Linguagem: Inglês

10.1016/0377-2217(84)90134-6

1872-6860

Toshio Nakagawa,

Statistical Distribution Estimation and Applications

This paper summarizes replacement models with discrete variables: (i) Three standard age, block and periodic replacement policies are rewritten as discrete time models. (ii) Four models are considered where the unit is replaced after a specified number of failures, shocks, repairs and preventive maintenances have occurred. Optimal policies to minimize the expected cost rates are also discussed. (iii) Two discrete problems of a parallel redundant system which determine the total number of failed units and the number of all units are considered. Finally, extended models with two variables are introduced.