Journal
INTERNATIONAL JOURNAL OF PRODUCTION ECONOMICS
Volume 99, Issue 1-2, Pages 131-143Publisher
ELSEVIER
DOI: 10.1016/j.ijpe.2004.12.012
Keywords
preventive maintenance; reliability; availability; inventory; buffer stock; optimization
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In this paper, we consider a repairable production unit subject to random failures, which supplies input to a subsequent assembly line. The production unit is submitted to a maintenance action as soon as it reaches a certain age 'T' or at failure whichever occurs first. A buffer stock W is built up in order to guarantee a continuous supply of the assembly line at a constant rate during repair and preventive maintenance actions whose respective durations are random. This production unit operating strategy is investigated taking into account a minimum required stationary availability level 'A'. We find the optimal operating characteristics (h* and P) which minimize the total average cost per time unit and satisfy the availability constraint. (c) 2005 Elsevier B.V. All rights reserved.
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