Economic design of x¯-control charts for continuous flow process with multiple assignable causes
Economic design of x¯-control charts for continuous flow process with multiple assignable causes
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多可分配原因的连续流过程x控制图的经济设计
DOI：
10.1016/j.ijpe.2010.04.048
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发表时间：
2010
影响因子：
12
通讯作者：
W. Pearn
中科院分区：
文献类型：
--
作者：
Yit;Chia Yi Su;W. Pearn
将Koo和Case(1990)的模型推广到单一可分配原因的情况，以允许在第一次发生之后第二次发生可分配原因，并且可分配原因的概率服从指数分布，过程故障机制具有固定的危险率。我们建立了一个成本模型，并通过最小化单位时间的期望成本来确定设计参数、样本量、采样间隔和控制极限系数的最佳值。最后，给出了设计参数和损失费用与模型参数和移位量密切相关的损失费用的性能和灵敏度分析。
Extending Koo and Case’s model (1990) for the case of a single assignable cause to allow for the second occurrence of an assignable cause following the first occurrence and the probability of the assignable causes following exponential distribution, the process-failure mechanism having a fixed hazard rate. We present a cost model and determine the optimal values of the design parameters, the sample size, the sampling intervals and control limit coefficient by minimizing the expected cost per unit time with respect to exponential parameters change. Finally, suggesting the performance of the loss-cost and sensitivity analyses of the design parameters and loss-cost which depend on the model parameters and shift amounts closely are also presented.