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신뢰성응용연구 = Journal of the applied reliability   v.18 no.2, 2018년, pp.143 - 152   KCI
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정비대체장비(M/F) 소요산출 방법비교 및 검증방안 연구
Comparison and Validation Plan for the Calculation Method of Required Maintenance Float (M/F)

이학재   (LIG넥스원  ); 김재황   (LIG넥스원  ); 정재우   (LIG넥스원  ); 서무경   (LIG넥스원  ); 권기상   (LIG넥스원  );
  • 초록

    Purpose: In this paper, we propose calculation methods of Maintenance Float (M/F). Results of each method are compared and verified by using commercial tool (OPUS Suite). As modern weapon systems become more expensive, we need to find the most economical and efficient method to achieve the target operational availability (Ao). Methods: Three kinds of methods (Considering the number of CSP, Applying the Poisson distribution, and Applying M&S Tool) are used to find the number of M/F. Three methods (Considering the number of CSP, Applying the Poisson distribution, and Applying M&S Tool) were used to estimate the required number of M/F. The analysis results were verified by SIMLOX. The cost of equipment calculated by each analysis method was compared and the cause of the difference was analyzed. Conclusion: Ao and cost must be considered to find the optimal number of M/F. In general, it costs more to increase availability. But the cost is not necessarily proportional to Ao. Therefore, it is better to compare the calculation method and determine the final MF quantity.


  • 주제어

    Maintenance Float(M/F)  . Poisson distribution  . Concurrent Spare Parts(CSP)  . OPUS Suite  .

  • 참고문헌 (7)

    1. Lee, S. J. and Kim, S. W. (2007). "The Optimal Inventory Level of the Maintenance Float to Achieve a Target Operational Availability of Korean-Made Helicopter". Korean Management Science Review, Vol. 24, No. 2, pp. 81-93. 
    2. Security Management Institute (2014). "Efficient management plan of M/F". Seoul: Security Management Institute. 
    3. ROK Army Headquarters (2006). "Army Regulation 017 Army acquisition management regulation (Wartime.Peacetime)". ROK Army Headquarters, p. 319. 
    4. ROK Army Headquarters (2006). "Army Regulation 432 Equipment supplies maintenance regulation (Wartime.Peacetime)". Daejeon: ROK Army Headquarters p. 40. 
    5. Korean Operations Research And Mangement Society (2007). "The Optimal Inventory Level of the Maintenance Float to Achieve a Target Operational Availability of Korean-Made Helicopter". 
    6. Korean Operations Research And Mangement Society (2014). "The Impact of Aircraft Spare Engine and Module Inventory Level on Warfare Operational Availability". 
    7. Blanchard, B. S. (2004). "Logistics engineering and management". Prentice Hall, pp. 104-106. 

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