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Journal of Korean Society for Quality Management 1996;24(1): 44-. |
| A(Q, r) Spare-Part Inventory Model with Gamma Leadtime |
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| ABSTRACT |
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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. |
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