A two-machine repair model with variable repair rate

A two-machine repair model with variable repair rate

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Article ID: iaor19932134
Country: United States
Volume: 40
Issue: 4
Start Page Number: 495
End Page Number: 523
Publication Date: Jun 1993
Journal: Naval Research Logistics
Authors: ,
Abstract:

A two-unit cold standby production system with one repairman is considered. After inspection of a failed unit the repairman chooses either a slow or a fast repair rate to carry out the corresponding amount of work. At system breakdown the repairman has an additional opportunity to switch to the fast rate. If there are no fixed costs associated with system breakdowns, then the policy which minimizes long-run average costs is shown to be a two-dimensional control limit rule. If fixed costs are incurred every time the system breaks down, then the optimal policy is not necessarily of control limit type. This is illustrated by a counterexample. Furthermore, the authors present several performance measures for this maintenance system controlled by a two-dimensional control limit rule.

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