Recent advances in optimal reliability allocation

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Original languageEnglish
Pages (from-to)143-156
Journal / PublicationIEEE Transactions on Systems, Man, and Cybernetics Part A:Systems and Humans
Issue number2
Online published20 Feb 2007
Publication statusPublished - Mar 2007
Externally publishedYes


Reliability has become a greater concern in recent years, because high-tech industrial processes with ever increasing levels of sophistication comprise most engineering systems today. To keep pace with this rapidly developing field, this paper provides a broad overview of recent research on reliability optimization problems and their solution methodologies. In particular, we address issues related to: 1) universal generating-function-based optimal multistate system design; 2) percentile life employed as a system performance measure; 3) multiobjective optimization of reliability systems, especially with uncertain component-reliability estimations; and 4) innovation and improvement in traditional reliability optimization problems, such as fault-tolerance mechanism and cold-standby redundancy-involved system design. New developments in optimization techniques are also emphasized in this paper, especially the methods of ant colony optimization and hybrid optimization. We believe that the interesting problems that are reviewed here are deserving of more attention in the literature. To that end, this paper concludes with a discussion of future challenges related to reliability optimization. © 2007 IEEE.

Research Area(s)

  • Ant colony optimization (ACO), Exact method, Genetic algorithm (GA), Metaheuristic algorithm, Multiobjective optimization, Multistate system (MSS), Percentile life, Reliability optimization, Reliability redundancy allocation