Allocation of two redundancies in two‐component series systems

Peng Zhao, Ping Shing Chan, Long Li and Hon Keung Tony Ng

Naval Research Logistics (NRL), 2013, vol. 60, issue 7, 588-598

Abstract: The allocation of redundancies in a system to optimize the reliability of system performance is an interesting problem in reliability engineering and system security. In this article, we focus on the optimal allocation of two exponentially distributed active (standby) redundancies in a two‐component series system using the tool of stochastic ordering. For the case of active redundancy, stochastic comparisons are carried out in terms of the likelihood ratio and reversed hazard rate orders. For the case of standby redundancy, a likelihood ratio ordering result is developed. The results established here generalize and strengthen corresponding results in the recent literature. In addition, several numerical examples are used to explicate the results. © 2013 Wiley Periodicals, Inc. Naval Research Logistics, 2013

Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:wly:navres:v:60:y:2013:i:7:p:588-598

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