Age Based Preventive Replacement Policy for Discrete Time Coherent Systems With Independent and Identical Components

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2023

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Elsevier Sci Ltd

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Abstract

The paper is concerned with an age based preventive replacement policy for an arbitrary coherent system that consists of components that are independent and have common discrete lifetime distribution. The system having an arbitrary structure is replaced preventively after a specific number of cycles or correctively at its failure time. The necessary conditions for the unique and finite replacement cycle that minimize the expected cost per unit of time are obtained. The policy is studied for some particular system models including the well-known k-out-of -n structure. The findings of the paper extend the results in the literature from single unit and parallel systems to an arbitrary coherent system. Numerical results are presented for particular discrete component lifetime distributions.

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Eryilmaz, Serkan/0000-0002-2108-1781

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Age replacement, Coherent system, Discrete distribution

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4

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240

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