论文标题

在存在测量误差的情况下,使用单方面运行规则控制图表监测变异系数

Monitoring Coefficient of Variation using One-Sided Run Rules control charts in the presence of Measurement Errors

论文作者

Tran, P. H., Heuchenne, C., Nguyen, H. D.

论文摘要

我们在本文中调查了测量误差对运行规则控制图的性能的影响,监视变异系数(CV)平方。文献中先前的运行规则CV图表通过使用两个单面运行规则图表来监视简历平方,而不是使用双面图表监视简历本身。数值结果表明,这种改进在检测过程变化方面具有更好的性能。此外,我们将通过仿真显示\ textIt {precision}和\ textit {cercucy}错误确实会对所提出的运行规则图表的性能产生负面影响。我们还发现,每项进行多次测量不是减少这些负面影响的有效方法。

We investigate in this paper the effect of the measurement error on the performance of Run Rules control charts monitoring the coefficient of variation (CV) squared. The previous Run Rules CV chart in the literature is improved slightly by monitoring the CV squared using two one-sided Run Rules charts instead of monitoring the CV itself using a two-sided chart. The numerical results show that this improvement gives better performance in detecting process shifts. Moreover, we will show through simulation that the \textit{precision} and \textit{accuracy} errors do have negative effect on the performance of the proposed Run Rules charts. We also find out that taking multiple measurements per item is not an effective way to reduce these negative effects.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源