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Journal Article

Citation

di Véroli JC. Oper. Res. Q. 1974; 25(1): 89-97.

Copyright

(Copyright © 1974, Operational Research Society, Publisher Pergamon Press)

DOI

unavailable

PMID

unavailable

Abstract

This paper investigates the problem of finding optimal replacement policies for equipment subject to failures with randomly distributed repair costs, the degree of reliability of the equipment being considered as a state of a Markov process. Algorithms have been devised to find optimal combined policies both for preventive replacement and for replacement in case of failure by using repair-limit strategies. First a simple procedure to obtain an optimal discrete policy is described. Then an algorithm is formulated in order to calculate an optimal continuous policy: it is shown how the optimal repair limit is the solution to an ordinary differential equation, and how the value of the repair limit determines the optimal preventive replacement policy.

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