품질경영학회지 (Journal of Korean Society for Quality Management)

  • 제39권4호
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  • Pages.480-485
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  • 2011
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  • 1229-1889(pISSN)
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  • 2287-9005(eISSN)
한국품질경영학회 (Korean Society for Quality Management)
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수리가능한 품목의 예방교체를 위한 주문정책

A Spare Ordering Policy for Preventive Replacement with Repair

  • 임성욱 (대진대학교 산업경영공학과) ;
  • 박영택 (성균관대학교 시스템경영영공학과)
  • 투고 : 2011.09.16
  • 심사 : 2011.11.17
  • 발행 : 2011.12.31
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초록

This paper presents a spare ordering policy for preventive replacement with minimal repair. To analyze the ordering policy, the failure process is modeled by a non-homogeneous Poisson process. Introducing the ordering, repair, downtime, replacement costs and salvage value, we derive the expected cost effectiveness as a criterion of optimality when the lifetime and lead times for the regular and expedited orders are generally distributed random variables. It is shown that, under certain conditions, there exists a finite and unique optimum ordering time which maximizes the expected cost effectiveness. A numerical example is also included to explain the proposed model.

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참고문헌

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