Ankara : Department of Industrial Engineering and the Institute of Engineering and Sciences of Bilkent University, 1997.Thesis (Master's) -- Bilkent University, 1997.Includes bibliographical references leaves 97-102.The Marginal Cost Analysis (MCA) of maintenance policies is a concept
gaining interest in the recent years. This approach, due to Berg, has been
categorized as an Economics Oriented Approach, as different from the classical
probability centered approach. The MCA has been successfully applied to the
Age Replacement and the Block Replacement policies, and was shown to be
flexible enough to permit extensions and generalizations.
In this thesis, we apply the MCA approach to a more complex model. We
consider a two-unit cold standby system. Upon failure of the working unit in
the time interval [0,T) the unit is replaced by the standby unit if available.
If the standby unit is in repair, the system is down, and a downtime cost is
incurred. The item inspected at time T is in one of two states: “good” , or
“critical” . The good unit continues operation, whereas a unit in critical state
is sent to repair. The switchover is immediate. We derive and compare the
marginal cost function as well as the long-run cost per unit time function.Hamdaoui, ChokriM.S
