One-Sided Shewhart-type Charts for Monitoring the Coefficient of Variation in Short Production Runs

被引：54

作者：

Castagliola, Philippe ^{[1
,2
]}

Amdouni, Asma ^{[3
]}

Taleb, Hassen ^{[4
]}

Celano, Giovanni ^{[5
]}

机构：

[1] Univ Nantes, LUNAM Univ, Nantes, France

[2] IRCCyN, UMR CNRS 6597, Nantes, France

[3] Univ Tunis, Inst Super Gest, Tunis, Tunisia

[4] Univ Gafsa, Higher Inst Business Adm Gafsa, Gafsa Sud, Tunisia

[5] Univ Catania, Catania, Italy

来源：

QUALITY TECHNOLOGY AND QUANTITATIVE MANAGEMENT | 2015年 / 12卷 / 01期

关键词：

Coefficient of variation; shewhart-type chart; short production runs; truncated run length; CONFIDENCE-INTERVALS; PERCENTAGE POINTS; TESTS;

D O I：

10.1080/16843703.2015.11673366

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Monitoring the coefficient of variation is an effective approach to Statistical Process Control when the process mean and standard deviation are not constant but their ratio is constant. Until now, research has not investigated the monitoring of the coefficient of variation for short production runs. Viewed under this perspective, this paper proposes a new method to monitor the coefficient of variation for a finite horizon production by means of one-sided Shewhart-type charts. Tables are provided for the statistical properties of the proposed charts when the shift size is deterministic. Two illustrative examples are given in order to illustrate the use of these charts on real data.

引用

页码：53 / 67

页数：15

共 30 条

[1] BAYESIAN PROCESS-CONTROL FOR ATTRIBUTES [J].