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An Analysis on the Optimal Level of the Maintenance Float Using Absorbing Markov Chain  

Kim, Yong (육군 종합군수학교 개념발전/무기체계)
Yoon, Bong-Kyoo (국방대학교 운영분석과)
Publication Information
Journal of the military operations research society of Korea / v.34, no.2, 2008 , pp. 163-174 More about this Journal
Abstract
The military is an organization where reliability and availability take much more importance than in any other organization. And, in line with a recent trend of putting emphasis on 'system readiness', not only functions but also availability of a weapon system has become one of achievement targets. In this regard, the military keeps spares for important facility and equipment, which is called as Maintenance Float (M/F), in order to enhance reliability and availability in case of an unforeseen event. The military has calculated yearly M/F requirements based on the number of equipment and utilization rate. However, this method of calculation has failed to meet the intended targets of reliability and availability due to lack of consideration on the characteristics of equipment malfunctions and maintenance unit's capability. In this research, we present an analysis model that can be used to determine an optimal M/F inventory level based on queuing and absorbed Markov chain theories. And, we applied the new analysis model to come out with an optimal volume of K-1 tank M/F for the OO division, which serves as counterattack military unit. In our view, this research is valuable because, while using more tractable methodology compared to previous research, we present a new analysis model that can describe decision making process on M/F level more satisfactorily.
Keywords
Maintenance Float (M/F); Quasi Birth Death Process; Queueing; Absorbing Markov Chain;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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