Analysis of Repairable Spare Parts Stockage Policies for the Space Shuttle
Abstract
In determining policies for the acquisition and management of repairable spares for the Space Shuttle, two objectives are paramount. First is the optimization of some measure of system performance such as the expected number of shuttles launched on time per year. Second, since the cost of a spares mix can run into the hundreds of millions of dollars, we would like to minimize the cost of achieving a certain performance level. Both requirements suggest a need for mathematical models of the supply system. The high cost, low demand rate items found on the shuttle are usually controlled via an (s-l,s) inventory system. An (s-l,s) policy involves sending an item to a repair depot immediately upon failure. Using an assumed (s-l,s) repair policy, this thesis will examine ways of choosing a spares mix according to three different mathematical models of system performance.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1982
- Accession Number
- ADA116746
Entities
People
- Kathleen Marie Conley
Organizations
- Air Force Institute of Technology