Abstract
Control charts are widely used for the detection of shifts in process parameters. In this study, we propose some enhanced Shewhart-type control charts using improved estimators based on auxiliary characteristics. A general control charting structure is developed that can be used with different location estimators. Performance of the proposed charts is compared using average run length (ARL), extra quadratic loss (EQL), and relative average run length (RARL) as performance measures. Comparisons are made among different proposals and the existing counterparts. It is observed that the proposed charts offer improved detection abilities depending upon the correlation structures among different variables under consideration. An illustrative example is also included to highlight the applications in practical situations.
| Original language | English |
|---|---|
| Pages (from-to) | 342-354 |
| Number of pages | 13 |
| Journal | Journal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an |
| Volume | 38 |
| Issue number | 3 |
| DOIs | |
| State | Published - 3 Apr 2015 |
Bibliographical note
Publisher Copyright:© 2014 The Chinese Institute of Engineers.
Keywords
- ARL
- EQL
- RARL
- location charts
- normality
- t distribution
ASJC Scopus subject areas
- General Engineering