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| Author: | Chen, Y.-S. Yang, Y.-M. |
| Title: | An extension of Banerjee and Rahim's model for economic design of moving average control chart for a continuous flow process |
| Journal: | European Journal of Operational Research
2002 : DEC, VOL. 143:3, p. 600-610 |
| Index terms: | ECONOMICS CONTROL MODELS FLOW PROCESS CHARTS |
| Language: | eng |
| Abstract: | In this paper, the authors propose a model of a moving average control chart (MA control chart) with a Weibull failure mechanism from an economic viewpoint. When the process-failure mechanism follows a Weibull model or other models having increasing hazard rates, it is desirable to have the decreasing sampling interval with the age of the system. The MA control chart is used to monitor quality characteristics of raw material or products in a continuous process. A cost model utilizing a variable scheme instead of fixed sampling lengths in a continuous flow process is studied in this research. The variable sampling scheme is used to maintain a constant integrated hazard rate over each sampling interval. |
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