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Journal of Korean Society for Quality Management > Volume 19(2); 1991 > Article
Journal of Korean Society for Quality Management 1991;19(2): 78-.
Optimum Inspection and Replacement Policy in Redundant System
In this paper, an inspection and replacement policy in a redundant system is considered. It is assumed that the state of the redundant system is known by inspection. When the system is inspected, it is preventively replaced only if the number of failed units exceeds the predetermined limit. Otherwise, the system is inspected after a inspection interval which depends on the number of failed units. We obtain the optimal number of redundant units, inspection intervals and replacement limit minimizing the expected cost rate.
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