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On matched active redundancy allocation for coherent systems with statistically dependent component lifetimes
Author(s) -
Fang Rui,
Li Xiaohu
Publication year - 2017
Publication title -
naval research logistics (nrl)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.665
H-Index - 68
eISSN - 1520-6750
pISSN - 0894-069X
DOI - 10.1002/nav.21774
Subject(s) - redundancy (engineering) , component (thermodynamics) , monotone polygon , computer science , context (archaeology) , mathematical optimization , biological system , mathematics , physics , quantum mechanics , geometry , paleontology , biology , operating system
This study addresses the allocation of matched active redundancy components to coherent systems with base components having statistically dependent lifetimes. We consider base component lifetimes and redundancy component lifetimes which are both stochastic arrangement monotone with respect to a pair of components given the lifetimes of the other components. In this context, allocating a more reliable redundancy component to the weaker base component is shown to incur a stochastically larger system lifetime. Numerical examples are presented as an illustration of the theoretical results.