Follow-Up Designs to Resolve Confounding in Split-Plot Experiments

• Autores: Ashraf A. Almimi, Murat Kulahci, Douglas C. Montgomery
• Localización: Journal of quality technology: A quarterly journal of methods applications and related topics, ISSN 0022-4065, Vol. 40, Nº. 2, 2008, págs. 154-166
• Idioma: inglés
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• Resumen

  • Split-plot designs are used effectively in industry, but some of the results of fractional-factorial split-plot experiments can be ambiguous and require follow-up experiments to separate effects of potential interest by breaking their alias links with others. In order to avoid the expense and difficulties associated with whole-plot factors, this study uses the foldover technique on only one or more subplot factors in order to de-alias certain effects. Six rules are provided to develop foldovers for minimum aberration resolution III and resolution IV fractional factorial split-plot designs.