품질경영학회지 (Journal of Korean Society for Quality Management)

  • 제41권3호
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  • Pages.413-421
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  • 2013
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  • 1229-1889(pISSN)
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  • 2287-9005(eISSN)
한국품질경영학회 (Korean Society for Quality Management)
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목표가용도를 고려한 다계층 시스템의 최적 중복 설계

Optimization of Redundancy Allocation in Multi Level System under Target Availability

  • 정일한 (국방기술품질원 창원센터)
  • Chung, Il-Han (Changwon Center, Defence Agency for Technology and Quality)
  • 투고 : 2013.07.26
  • 심사 : 2013.08.25
  • 발행 : 2013.09.30
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초록

Purpose: System availability and life cycle cost are often used to evaluate the system performance and is influenced by the operation and maintenance characteristic. In this paper, we propose the method to improve life cycle cost and satisfy the target availability through redundancy allocation. Methods: We consider the redundancy is available at all items in multi level system. Thus, we assume that sub-assembly, module, components can be duplicated. Simulation and genetic algorithm are employed to optimize redundancy allocation. Results: Target availability is higher, the life cycle cost is increased. In addition, the items for redundancy are selected at higher level in multi level system if target availability is higher. Conclusion: We could know that target availability affects the duplication number of items and the selection of redundancy items. For further study, we will consider new optimization algorithms to compare with the proposed GA algorithm and improve optimization performance.

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참고문헌

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