Sensitivity Analysis and Optimal design for the Elasto-plastic buckling of Vehicle Structures

차체구조물의 탄소성좌굴에 관한 민감도해석과 최적설계

  • 원종진 (국민대학교 기계자동차공학부) ;
  • 이종선 (대진대학교 기계설계공학부)
  • Published : 1998.10.01

Abstract

Experience and experiments show that in many cases the buckling limit is reached at a much smaller load level than is predicted by linear buckling analysis. In this paper, it is considered linear and nonlinear of plane vehicle structure and estimates design sensitivity of the cross sectional area that is composed plane vehicle structure and performs optimal design. It compares linear vehicle structure with nonlinear vehicle structure for optima design result that is selected constraint condition of buckling load.

Keywords

References

  1. International Journal for Numerical Methods in Engineering v.24 Design Sensitivity Analysis of Non-linear Structural Systems Part I: Theory Choi, K. K.;Santos, J. L. T.
  2. Journal of Stuctural Mechanics v.10 no.2 A Numerical Method for Distributed Parameter Structural Optimization Problems with Repeated Eigenvalus Choi, K. K.;Haug, E. J.;Lam, H.C.
  3. Int. J. Solids Structures v.13 Plastic Collapse of General Frames McIvor, I. K.;Wienman, A. S.;Wang, H.C.
  4. SAE Trans. v.86 no.770593 A Design-analysis Methods for the Frontal-Crush Strength of Body Structures Chang, D. C.
  5. Applied Optimal Design Haug, E. J.;Arora, J. S.
  6. ANSYS Ver 4.4 Manual Swanson
  7. Technical Report R-58 Design sensitivity analysis and optimal design of nonlinear structural systems with critical loads J. S. Park;K. K. Choi
  8. Vehicle Structural Mechanics Conference and Exposition Deproit, Michigan, SAE 860825 Generic Model of a Vehicle Structure Choon T. Chon. Homa Mohammadtrab and Mohamed EI-Essqwi.
  9. Modern Automotive Structural Analysis Collision Simulation Kamal, M. M.;Lin, K. -H.;M. M. Kamal(Ed.);J. A. Wolf.(Ed.)