DOI QR코드

DOI QR Code

Automatic Generation of Orthogonal Arrays and Its Application to a Two-Step Structural Optimization

실험에 적합한 직교 배열표의 자동 생성 및 2 단계 구조 최적화에의 적용

  • 이수범 (한국과학기술원 대학원 기계공학과) ;
  • 곽병만 (한국과학기술원 기계공학과)
  • Published : 2003.12.01

Abstract

In this paper, an approach of automatically finding and modifying the most appropriate orthogonal array (GO) is suggested and applied to a new structural optimization procedure with two steps. GO is motivated by the situation where finding a proper orthogonal array from the tables in the literature is difficult or impossible. Now the Taguchi method is made available for various numbers of variables and levels. In the two-step structural optimization, the Taguchi method equipped with GO and a shape optimization using the finite differencing method is consecutively applied. The existence or non-existence of an element can be taken as a factor level and this feature is utilized finding the best topology from a set of potential topologies suggested from the user's expertise. This greatly enhances applicability and one can expect a better result than the case in which each step is applied independently because these steps are complementary each other.

Keywords

Orthogonal Array;Taguchi Method;Finite Difference Method;Two-Step Optimization

References

  1. Douglas C. Montgomery and George C. Runger, 1999, Applied Statistics and Probability for Engineers, John Wiley & Sons, New York, pp. 410-416
  2. Ranjit K. Roy, 1990, A Primer on the Taguchi Method, Van Nostrand Reinhold, New York, pp. 182-229
  3. Soo Bum Lee and Byung Man Kwak, 2002, 'Automatic Generation of Orthogonal Arrays for the Taguchi Method and Applications to Structural Optimal Design,' Proc. The Second China-Japan-Korea Joint Symposium on Optimization of Structural and Mechanical Systems, pp. 299-305
  4. Madhav S. Phadke, 1989, Quality Engineering Using Robust Design, Prentice-Hall, Englewood Cliffs, pp. 149-174, 285-319
  5. Kwang Hyeon Hwang, Kwon Hee Lee, Gyung-Jin Park, Byeong Leul Lee, Yong Chul Cho and Seok Han Lee, 2002, 'Robust Design of the Vibratory Gyroscope with Unbalanced Inner Torsion Gimbal Using Axiomatic Design,' Transactions of the KSME, A, Vol. 26, No. 5, pp. 914-923
  6. Lin, T. Y. and Tseng, C. H., 2000, 'Optimum Design for Artificial Neural Networks: and Example in a Bicycle Derailleur System,' Engineering Applications of Artificial Intelligence, Vol. 13, pp. 3-14 https://doi.org/10.1016/S0952-1976(99)00045-7
  7. Joon-Mook Lim, Kil-Soo Kim, Bong-Jin Yum and Hark Hwang, 1996, 'Determination of an Optimal Configuration of Operating Policies for Direct-Input-Output Manufacturing Systems Using the Taguchi Method,' Computers ind. Engng, Vol. 31, No. 3/4, pp. 555-560 https://doi.org/10.1016/S0360-8352(96)00224-0
  8. Chen, R. S., Lee, H. H. and Yu, C. Y., 1997, 'Application of Taguchi's Method on the Optimal Process Design of an Injection Molded PC/PBT Automobile Bumper,' Composite Structures, Vol. 39, No. 3-4, pp. 209-214 https://doi.org/10.1016/S0263-8223(97)00110-4