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This paper models a complex system to analyse its reliability characteristics. The system has two possible modes-normal and failed with two types of repair facilities-major and minor. The system can fail due to failure of any units which can fail in n-mutually exclusive ways or common cause failure. Each component of the system has a constant failure rate.(More)
This paper develops a new mathematical model of a system with a novel approach, which consists of two independent repairable subsystems. The model is analyzed under " Head-of-Line " repair policy considering two types of repair between two successive transitions at a stage contrast to the normal practice of assuming single type of transition in all states.(More)
We present a novel method for cost analysis of an engineering system, which consists of two subsystems, viz. subsystem-1 and subsystem-2 with controllers. Subsystem-1 works under the k-out-of- n: good policy. Subsystem-2 consists of three identical units in parallel configuration. Both of these subsystems are connected in series. The controllers control(More)
In this paper we propose a new coverage model which shows improvement in the availability of the system and the reduction in the cost which are important measures for reliability. The present study discusses the effect of coverage factor on the reliability characteristics of a parallel redundant complex system. The system is analysed under Preemptive(More)