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Note on optimal redundant policies for reliability models

Toshio Nakagawa (Department of Marketing and Information Systems, Aichi Institute of Technology, Toyota, Japan)
Kazumi Yasui (Department of Marketing and Information Systems, Aichi Institute of Technology, Toyota, Japan)

Journal of Quality in Maintenance Engineering

ISSN: 1355-2511

Article publication date: 1 March 2005

916

Abstract

Purpose

The reliabilities of systems are generally improved as units of redundancy increase. This paper aims to summarize the authors' results.

Design/methodology/approach

A conceptual discussion and approach are taken.

Findings

Focuses on the optimal number of units and replacement times of parallel systems, two modified replacement policies and two maintenance policies where a system is replaced at Nth repair and Nth failure. Further, as some examples of redundancy, five redundant models of data transmission, checkpoint, network and copy are given, and optimal policies for each model are analytically discussed.

Originality/value

Presents the number of units and replacement times of parallel systems, and other modified replacement and preventive maintenance policies.

Keywords

Citation

Nakagawa, T. and Yasui, K. (2005), "Note on optimal redundant policies for reliability models", Journal of Quality in Maintenance Engineering, Vol. 11 No. 1, pp. 82-96. https://doi.org/10.1108/13552510510589398

Publisher

:

Emerald Group Publishing Limited

Copyright © 2005, Emerald Group Publishing Limited

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