Queueing Models for Spares Provisioning.
Abstract
A population of items which break down at random times and require repair are studied (the classic 'machine repair problem'). It is desired to determine the number of repairmen and spares required over a multi-year planning horizon to provide for a service criterion of 90% availability. When an item fails, it is transported to the repair depot, repaired, and then transported to the spares pool (which is constrained to be empty not more than 10% of the time). The first model considered treats transportation and repair as one service operation. The second model is a series queue which allows for the separate treatment of transportation and repair. Breakdowns are assumed Poisson and repair times, exponential.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 1975
- Accession Number
- ADA021261
Entities
People
- Donald Gross
- Henry D. Kahn
- Joseph D. Marsh
Organizations
- George Washington University