DYNA-SIM: A Nonstationary Queuing Simulation with Application to the Automated Test Equipment Problem.
Abstract
This note describes the Dyna-Sim model, which provides a capability for exploring the implications of maintenance repair queing and requirements for spare parts. Several useful conclusions emerge from the study of the Automated Test Equipment (ATE) queing problem using Dyna-Sim, which are summarized as follows: The ample server assumption (more than enough ATE available to serve any repair demands) is a very poor approximation when queues become saturated in high aircraft sortie rate scenarios; and if repair times follow the exponential distribution, certain approximation techniques become available (because the queuing system satisfies requirements of a Markov process). But real-world repair times are rarely exponential. The authors used Dyna-Sim to show that in a constrained server problem, the choice of the repair time distribution is not important. Thus, analytical approximations for queuing in capability assessment models are traceable.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1984
- Accession Number
- ADA146384
Entities
People
- G. B. Crawford
- L. W. Miller
- R. E. Stanton
Organizations
- RAND Corporation