Abstract
This paper presents a framework for constructing regression metamodels for maintenance float systems (MFSs) with an Erlang-2 failure distribution. The metamodel is used in predicting the average equipment utilization (EU) of a maintenance float system for any given combination of repairpersons and standby units. It is shown that the regression metamodel from a 25 – 1 factorial experiment yields close approximations to simulation results. The EU metamodel is further applied in a cost structure to determine the optimum number ofstandby units, and the number of repairpersons. Furthermore, sensitivity analysis on EU can be conducted with the metamodel presented in this paper.
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