Effect of maintenance on the economic design of {x−}-control chart

Effect of maintenance on the economic design of {x−}-control chart

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Article ID: iaor200189
Country: Netherlands
Volume: 120
Issue: 1
Start Page Number: 131
End Page Number: 143
Publication Date: Jan 2000
Journal: European Journal of Operational Research
Authors: ,
Keywords: control charts
Abstract:

An integrated model for the joint optimization of the maintenance level and the economic design of {x}-control chart is presented. This is done for a deteriorating process where the in-control period follows a general probability distribution with an increasing hazard rate. In the proposed model, preventive maintenance reduces the shift rate to an out-of-control state by an amount proportional to the preventive maintenance level. An example of a Weibull shock model with increasing hazard rate is used to illustrate the effect of the maintenance level on quality control costs. A comparison between uniform and non-uniform schemes is made both with and without preventive maintenance. Effect of distribution parameters has also been investigated.

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