ATLAST Deployment Push Pack Spares Optimization Module

摘要

ATLAST (Aircraft Total Life-Cycle Assessment Software Tool) was developed to support life-cycle logistics impact forecasting for new and aging weapon-system fleets. ATLAST simulates airframe operations, using tail numbers and operation profiles, to predict unscheduled and scheduled removal events according to location and age of components over time. It then administers a capacity-constrained maintenance and logistic support process that returns assets back to serviceable conditions. The latest version of ATLAST consists of a "Deployment & Push Pack Spares" optimization module. The module utilizes a hybrid analytical-simulation optimization approach to rank spare parts by their effectiveness in increasing availability. Decision makers can use ATLAST to determine the optimal level of spares for the deployment of aircraft at a specific location. Detailed mathematical formulation and three numerical examples are presented in this paper.