Integrating on-line process control and imperfect corrective maintenance: An economical design

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• 作者：Linda Lee Ho^a ; ^{lindalee@usp.br} ; Roberto C. Quinino^b ; ^{roberto@est.ufmg.br}
• 关键词：Applied probability ; Markov process ; Imperfect corrective maintenance ; On-line process control by variables ; Economical models ; Variable sampling interval
• 刊名：European Journal of Operational Research
• 出版年：2012
• 期刊代码：58_03772217
• 类别：et
• 出版时间：16 October, 2012
• 卷：222
• 期：2
• 页码：253-262
• 文件大小：461 K

摘要

Existing studies of on-line process control are concerned with economic aspects, and the parameters of the processes are optimized with respect to the average cost per item produced. However, an equally important dimension is the adoption of an efficient maintenance policy. In most cases, only the frequency of the corrective adjustment is evaluated because it is assumed that the equipment becomes 鈥渁s good as new鈥?after corrective maintenance. For this condition to be met, a sophisticated and detailed corrective adjustment system needs to be employed. The aim of this paper is to propose an integrated economic model incorporating the following two dimensions: on-line process control and a corrective maintenance program. Both performances are objects of an average cost per item minimization. Adjustments are based on the location of the measurement of a quality characteristic of interest in a three decision zone. Numerical examples are illustrated in the proposal.