Design of an EWMA adaptive control chart using MDS sampling

2019 ◽  
Vol 22 (3) ◽  
pp. 535-555
Author(s):  
Nasrullah Khan ◽  
Muhammad Aslam
Keyword(s):  
Adaptive Control ◽  
Control Chart ◽  
Adaptive Control Chart

Monitoring linear profiles using an adaptive control chart

2015 ◽  
Vol 82 (5-8) ◽  
pp. 1433-1445 ◽  
Author(s):  
Maysa S. De Magalhães ◽  
Rodrigo Otávio S. Von Doellinger
Keyword(s):  
Adaptive Control ◽  
Control Chart ◽  
Linear Profiles ◽  
Adaptive Control Chart

A New EWMA Loss Control Chart with Adaptive Control Scheme

2014 ◽  
Vol 631-632 ◽  
pp. 12-17 ◽  
Author(s):  
Chung Ming Yang ◽  
Su Fen Yang ◽  
Jeng Sheng Lin
Keyword(s):  
Adaptive Control ◽  
Control Chart ◽  
Control Charts ◽  
Sampling Interval ◽  
Average Loss ◽  
The Difference ◽  
And Performance ◽  
Process Measurements ◽  
Fixed Sampling Interval ◽  
Adaptive Control Charts

A single chart, instead of and R charts or and S charts, to simultaneously monitor the process mean and variability would reduce the required time and effort. A number of studies have attempted to find such charts. Moreover, a number of studies demonstrated that the adaptive control charts may detect process shifts faster than the fixed control charts. This paper proposes the EWMA loss chart with variable sample sizes and sampling intervals (VSSI) to effectively monitor the difference of process measurements and target. An example is used to illustrate the application and performance of the proposed control chart in detecting the changes in the difference of the process measurements and target. Numerical analyses demonstrated that the VSSI EWMA loss chart outperforms the fixed sampling interval EWMA average loss chart and the Shewhart joint and S charts. Therefore, the VSSI EWMA loss chart is recommended.

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