RELIABILITY OF GENERAL SERIES-PARALLEL AND SEQUENTIAL SERIES-PARALLEL SYSTEMS AND THEIR OPTIMIZATION

摘要

In this paper we derive the explicit formula for system reliability of sequential series-parallel structure by using recursive method and we also obtain the optimal number of redundant components of the system of general series- parallel system and seqeuenting series-parallel system under the consideration of cost minimization. Each component failure follows Poisson probability distribution and inter-failure time distibution follows exponential distibution.The comparative study of both types of reliability configuration is carried out from the cost point of view. To show the applicabibility of the reliability models under study the numerical illustrations have also been obtained.