Journal of Korean Institute of Industrial Engineers (대한산업공학회지)

Korean Institute of Industrial Engineers (대한산업공학회)
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Optimal Reliability Strategy for k-out-of-n System Considering Redundancy and Maintenance

중복설계 및 예방정비를 고려한 수리가능 k-out-of-n 시스템 신뢰도 최적화 전략

  • Lee, Youn-Ho (ILS(Integrated Logistics Support) R&D Lab, LIG Nex1) ;
  • Jung, Kwang-Kyun (ILS(Integrated Logistics Support) R&D Lab, LIG Nex1) ;
  • Yoon, Tae-Dong (ILS(Integrated Logistics Support) R&D Lab, LIG Nex1) ;
  • Kwon, Ki-Sang (ILS(Integrated Logistics Support) R&D Lab, LIG Nex1)
  • Received : 2013.07.04
  • Accepted : 2013.09.26
  • Published : 2014.02.15
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Abstract

The configuration such as series, parallel and k-out-of-n of a repairable system directly affects its reliability. The maintenance strategy can also affect the overall performance of the system. The objective of this work is to investigate the possible trade-off between the configuration of a repairable k-out-of-n system and its maintenance strategy. The redundancy is considered to be the design decision variables, whereas the preventive maintenance period is considered to be the maintenance decision variables. The optimization model is used to minimize the overall life cycle cost associated with the system, considering constraint on reliability. Finally, genetic algorithm is used to find the optimal values for the decision variables. The result is compared with optimal values for considering redundancy and maintenance respectively.

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References

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