Journal of Korean Society for Quality Management (품질경영학회지)
- Volume 24 Issue 1
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- Pages.44-49
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- 1996
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- 1229-1889(pISSN)
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- 2287-9005(eISSN)
A(Q, r) Spare-Part Inventory Model with Gamma Leadtime
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Park, Young-Taek
(Dept. of Industrial Engineering, Sungkyunkwan University) ;
- Park, Won-Jae (Dept. of Industrial Engineering, Sungkyunkwan University) ;
- Hur, Jun (Dept. of Industrial Engineering, Sungkyunkwan University)
- Published : 1996.03.31
Abstract
This paper deals with a (Q, r) spare-part inventory model with gamma leadtime. In the model, if the inventory level falls to a reorder point r, a replenishment order quantity Q is ordered. Assumming that the number of operating units is one and the lifetime of a unit follows an exponential distribution, we derive the expected cost rate and suggest a procedure to obtain the optimal pair of (Q, r) minimizing the cost rate. A numerical example is presented to explain the model.
Keywords