강성구속 조건을 갖는 구조물의 신뢰성기반 위상최적설계Reliability-Based Topology Optimization for Structures with Stiffness Constraints
- Other Titles
- Reliability-Based Topology Optimization for Structures with Stiffness Constraints
- Authors
- 김상락; 박재용; 이원구; 유진식; 한석영
- Issue Date
- Dec-2008
- Publisher
- 한국생산제조학회
- Keywords
- 신뢰성기반 위상최적화; 신뢰도 지수 접근법; 진화적 구조 최적화; 민감도수; 신뢰도지수; Reliability-Base Topology Optimization; Reliability Index Approach; Evolutionary Structural Optimization; Sensitivity number; Reliability Index
- Citation
- 한국생산제조학회지, v.17, no.6, pp.77 - 82
- Indexed
- KCI
- Journal Title
- 한국생산제조학회지
- Volume
- 17
- Number
- 6
- Start Page
- 77
- End Page
- 82
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/177539
- ISSN
- 2508-5093
- Abstract
- This paper presents a Reliability-Based Topology Optimization(RBTO) using the Evolutionary Structural Optimization (ESO). An actual design involves some uncertain conditions such as material property, operational load and dimensional variation. The Deterministic Topology Optimization(DTO) is obtained without considering the uncertainties related to the uncertainty parameters. However, the RBTO can consider the uncertainty variables because it has the probabilistic constraints. In order to determine whether the probabilistic constraints are satisfied or not, simulation techniques and approximation methods are developed. In this paper, the reliability index approach(RIA) is adopted to evaluate the probabilistic constraints. In order to apply the ESO method to the RBTO, sensitivity number is defined as the change in the reliability index due to the removal of the ith element. Numerical examples are presented to compare the DTO with the RBTO.
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