A Study on Developing Fold-Over Designs with Four-Level Quantitative Factors

4-수준 계량인자가 포함된 반사계획에 관한 연구

  • Choi, Kiew-Phil (Total Productivity Team, Orion Electric Company) ;
  • Byun, Jai-Hyun (Department of Industrial and Systems Engineering, Gyeongsang National University)
  • 최규필 (오리온전기(주)) ;
  • 변재현 (경상대학교 산업시스템공학부, 항공기부품기술연구센터)
  • Published : 2002.09.30

Abstract

Two-level fractional factorial designs are widely used when many factors are considered. When two-level fractional factorial designs are used, some effects are confounded with each other. To break the confounding between effects, we can use fractional factorial designs, called fold-over designs, in which certain signs in the design generators are switched. In this paper, optimal fold-over designs with four-level quantitative and two-level factors are presented for (1) the initial designs without curvature effect and (2) those with curvature effect. Optimal fold-over design tables are provided for 8-run, 16-run, and 32-run experiments.

Keywords

References

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