Initial Provisioning with the Dyna-Metric Inventory Model.
Abstract
Initial provisioning provides for the major portion of recoverable spare parts used over the lifetime of a weapon system. Like war reserves provisioning, initial provisioning should establish the requirements for reparable assets based on the capability that this inventory provides to accomplish the mission. Current initial provisioning methods, using variations on the MOD-METRIC model, compute requirements based on minimizing backorders subject to an investment constraint. These steady-state methods do not consider the relationship between backorders of Line Replaceable Units (LRU) and weapon system readiness because each LRU is treated as equally critical. The Dyna-METRIC model, on the other hand, can not only represent the dynamic nature of the acquisition process, but it can also discern which spare parts may be more critical than others. This thesis is a comparison in terms of aircraft availability and inventory investment between the use of MOD-METRIC and Dyna-METRIC models on a set of sixty-four F-16 LRUs. Results indicate that, during initial provisioning, the Dyna-METRIC model could have recommended a set of spare part stock levels that would have resulted in higher theoretical aircraft availability than did the the MOD-METRIC model for the same inventory investment. Also, the research suggests that the Dyna-METRIC model would have recommended stock levels with lower inventory investment than did the MOD-METRIC model for the same level of theoretical availability.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1985
- Accession Number
- ADA161449
Entities
People
- Michael G. Mills
Organizations
- Air Force Institute of Technology