확률 구조 해석을 사용한 불확정 구조계의 이단계 최적설계 Two phase optimum design of uncertain structural system using Probabilistic Structural Analysis
pp.1429-1434
‘In structural system, a certain amount of uncertainties always persists in material properties, geometric parameters and applied loads. In this study, the structure is designed to withstand the uncertainties which are caused by either measurement inaccuracy or system complexity. Random structures are modelled by using ANSYS probabilistic design module. It can be applied easily to any structural system with random parameters. The aim of this paper is to make optimal design for the beam with random input variables due to width and height and response parameters due to displacements and stresses. The probabilistic design is also carried out with ANSYS APDL and then the optimal design is sequentially solved. As the total volume of beam, stresses and displacements at the beam are treated as random parameters, the numerical results are obtained.'
1. 서론
2. 확률설계 정식화
2.1 확률 유한요소 모형
2.2 확률변수 및 응답변수
2.3 확률 구조 최적설계 정식화
3. 불확정 구조 최적 설계 결과
3.1 몬테카를로 시뮬레이션
3.2 확률 해석 결과
3.3 불확정 구조계 최적설계 결과
4. 결론
References