Optimal Foldovers and Semifolding for Minimum Aberration Even Fractional Factorial Designs

• Autores: Robert W. Mee, Jihua Xiao
• Localización: Journal of quality technology: A quarterly journal of methods applications and related topics, ISSN 0022-4065, Vol. 40, Nº. 4, 2008, págs. 448-460
• Idioma: inglés
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• Resumen

  • When conducting a single fractional factorial experiment with many factors, results may not be conclusive and the addition of another fraction is often recommended. In this study, another fraction is added to a resolution IV design containing close to the maximum number of factors. General results are offered for identifying the best foldover for resolution IV designs. Semifolding is also considered because follow-up designs occur that also permit estimation of effects of interest. The methodology is illustrated for a 15-factor ceramic fiber composite experiment.