Cost effective optimum design of n-order non-identical redundant systems

摘要

This paper discusses a cost-effective optimum design of n-order redundant systems. The components/modules in the redundant system are assumed to be non-identical and failure time follows exponential distribution. This paper suggests optimal spares in the case of triple-moduler-redundant system and particular cases viz, parallel and series systems. The results are presented for the cases: (i) components/modules fail individually, and (ii) common-cause failures (CCFs) also occur in addition to individual failures.