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Journal of Korean Society for Quality Management > Volume 39(4); 2011 > Article
Journal of Korean Society for Quality Management 2011;39(4): 480-.
수리가능한 품목의 예방교체를 위한 주문정책
임성욱1, 박영택2
1대진대학교 산업경영공학과
2성균관대학교 시스템경영영공학과
A Spare Ordering Policy for Preventive Replacement with Repair
Sung-Uk Lim1, Young-Taek Park2
1Daejin University
2Sungkyunkwan University
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.
Key Words: Ordering Policy;Preventive Replacement;Minimal Repair;
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