Kniha Shift Detection and Process Adjustments Hesham Fahmy

Shift Detection and Process Adjustments

An Integrated Approach

Autor: Hesham Fahmy
Jazyk: Angličtina
Väzba: Brožovaná
Dostupnosť: U vydavateľa na objednávku
Odosielame za 17-27 dní
48.55
One of the key characteristics to be monitored is the mean of the quality characteristic of interest...

Informácie o knihe

Autor
Jazyk
Angličtina
Väzba
Kniha - Brožovaná
Vydalo
2008
Stránok
104
EAN
9783836497640
ISBN
3836497646
Enbook ID
06935619
Hmotnosť
150
Rozmery
152 x 229 x 6

Kompletný popis

One of the key characteristics to be monitored is the mean of the quality characteristic of interest. Even though methods such as design of experiments are used to determine the optimum setting of the process parameters to ensure that the mean of the quality characteristic is within the specified levels, the mean may gradually increase/decrease in linear/nonlinear fashion. This phenomenon is quite related to the change-point detection research that has been investigated by others. In this book, we develop statistical procedures to monitor and adjust such trended processes. We develop a new control chart approach for linear trend detection in the process mean. Furthermore, we introduce a procedure to detect the drift time of processes subject to linear and nonlinear trend. The procedure is effective in detecting the drift time as early as possible. Unlike the traditional statistical process control procedure where the process is investigated once the SPC chart signals that the process is out-of-control but no corrective action is determined, we develop a new adjustment procedure based on the maximum likelihood estimate of the drift time to keep the process on target. This work bridges the gap between theory and practice in process control and should be especially useful to process engineers and professionals in SPC field.

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