Optimization of Pin-hole Location to Minimize Stress Concentration around Hole in Rotating Disc under Centrifugal Force

원심력을 받는 회전원판내 원공주위 응력집중 최소화를 위한 핀홀위치 최적화

  • 한동섭 (동아대학교 대학원 기계공학과) ;
  • 한근조 (동아대학교 기계공학) ;
  • 김태형 (경남정보대학 기계자동차산업학) ;
  • 심재준 (동아대학교 대학원 기계공학과)
  • Published : 2004.06.01

Abstract

The objective of this paper is to decide optimal location of a pin-hole to minimize stress concentration around the hole in a rotating disc. The focus of this investigation is to evaluate the effect of pin-hole on stress distribution around the hole using optimum design technique and finite element analysis. Design variables are the radial and the angular location of pin-hole from center of the hole and objective function is the maximum stress around hole in a rotating disc. Using first order method of optimization technique, we found that the maximum equivalent stress around the hole with optimized pin-hole could be reduced by 15.1% compared to that without pin-hole.

Keywords

References

  1. Yukawa, S., Timo, D.P. snf Rubio,A.,'Fracture Design Practices for Rotating Equipment,' Fracture, Vol. 5, Academic Press, 1969
  2. Han, S.B., Lee, J.H. and Kim, Y.J., 'Finite Element Analysis of a Rotating Disc with a Corner Crack Originating at the Bolt Holes,' J. of KSME , Vol. 17, No. 12, pp. 3055-3062, 1993
  3. Timoshenko, S.P. and Goodier, J.N., 'Theory of Elasticity,' McGraw-Hill, pp. 80-83, 1982
  4. Oh, S. W., Kim, J. Y. and Park, Y. C., 'The Effect of Two Circular Holes Arrangement on the Stress Concentration Factor in a Semi-infinite Plate,' J. of KSOE, Vol. 4, No. 1, pp. 110-119, 1990
  5. Kim, J., Ahn, K., Kim, S. and Kwak, Y., 'Optimal Design of a Variable-Speed Cam for Power Circuit Breaker,' J. of KSPE, Vol. 18, No. 12, pp. 47-53, 2001
  6. Belegundu, A.D., 'Optimization Concepts and Applicatons in Engineering,' Prentice Hall, New Jersey, pp. 385-419, 2000