Model for NARF (Naval Air Rework Facility) Supply Support which Includes both On-Site Spares and Scheduled Delivery

摘要

Supply support of a Naval Air Rework Facility (NARF) should consider both on-site inventories of spare repair parts as well as back-up resupply from the local Naval Supply Center (NSC). This thesis presents a model for such a system for a limited time horizon. The decision variables are the number of units of an item to stock on-site and the length of time between deliveries once the on-site inventory is depleted. The determination of the optimal values of these variables required evaluation of the total expected variable costs for each given set of parameters. After identification of optimal values of both decision variables, a comparison between the minimum total expected costs of this model and an earlier model without on-site spares was conducted. The results suggest that the on-site spares model is preferable to one without spares. However, because the outcome of such a comparison is strongly dependent on the cost values assumed, additional analyses are needed before a general statement can be made.