- 확률 유한요소 이차섭동법을 사용한 구조물 최적설계
- Structural Optimization Using Stochastic Finite Element Second-Order Perturbation Method
- ㆍ 저자명
- 임오강,이병우
- ㆍ 간행물명
- 大韓機械學會論文集
- ㆍ 권/호정보
- 1995년|19권 8호|pp.1822-1831 (10 pages)
- ㆍ 발행정보
- 대한기계학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
A general formulation of the design optimization problem with the random parameters is presented here. The formulation is based on the stochastic finite element second-order perturbation method ; it takes into full account of the stress and displacement constraints together with the rates of change of the random variables. A method of direct differentiation for calculating the sensitivity coefficients in regard to the governing equation and the second-order perturbed equation is derived. A gradient-based nonlinear programming technique is used to solve the problem. The numerical results are specifically noted, where the stiffness parameter and external load are treated as random variables.