Economic designs of constrained EWMA and combined EWMA-X¯ control schemes

被引：17

作者：

Tolley, G.O. ^{[1
]}

English, J.R. ^{[1
]}

机构：

[1] School of Engineering and Logistics, US Army Materiel Command, Texarkana, TX 75507, United States

来源：

IIE Transactions (Institute of Industrial Engineers) | 2001年 / 33卷 / 06期

关键词：

Constraint theory - Cost benefit analysis - Errors - Mathematical models - Optimization - Production control - Statistics;

D O I：

10.1023/A:1007695825509

中图分类号：

学科分类号：

摘要：

This research presents a comparison between the cost performance of the Exponentially Weighted Moving Average (EWMA) and the combined EWMA-X¯ control chart schemes. In particular, we explore the impact of constraining the in-control average run length on the optimal cost performance of both schemes. Methodologically, we incorporate traditional expected cost models and study the robustness of the two approaches. In general, there appears to be minimal motivation to combine the use of both charts within the same application. The cost model for the combined chart is not a well-behaved function, and yields varying optimal parameters when the in-control average run length is constrained.

引用

页码：429 / 436