期刊
INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE
卷 43, 期 10, 页码 1870-1882出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/00207721.2011.555009
关键词
inventory; machine breakdown; deteriorating items; stochastic; corrective and preventive maintenance
In recent years, many researches on economic production quantity (EPQ) models with machine breakdown and preventive maintenance have been developed, but few of them have developed integrated models for deteriorating items. In this study, we develop EPQ models for deteriorating items with preventive maintenance, random machine breakdown and immediate corrective action. Corrective and preventive maintenance times are assumed to be stochastic and the unfulfilled demands are lost sales. Two EPQ models of uniform distribution and exponential distribution of corrective and maintenance times are developed. An example and sensitivity analysis is given to illustrate the models. For the exponential distribution model, it is shown that the corrective time parameter is one of the most sensitive parameters to the optimal total cost.
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