ISSN : 2005-0461(Print)
ISSN : 2287-7975(Online)
ISSN : 2287-7975(Online)
감마분포 공정을 위한 변동계수 관리도의 통계적 설계
The Statistical Design of CV Control Charts for the Gamma Distribution Processes
Abstract
Recently, the control chart is developed for monitoring processes with normal short production runs by the coefficient of variation(CV) characteristic for a normal distribution. This control chart does not work well in non-normal short production runs. And most of industrial processes are known to follow the non-normal distribution. Therefore, the control chart is required to be developed for monitoring the processes with non-normal short production runs by the CV characteristics for a non-normal distribution. In this paper, we suggest the control chart for monitoring the processes with a gamma short runs by the CV characteristics for a gamma distribution. This control chart is denoted by the gamma CV control chart. Futhermore evaluated the performance of the gamma CV control chart by average run length(ARL).
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