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이산형 변수를 이용한 뼈대구조물의 다단계 최적설계

Title
이산형 변수를 이용한 뼈대구조물의 다단계 최적설계
Other Titles
Multi-Level Optimization for Steel Frames using Discrete Variables
Author
조효남
Keywords
다단계 최적화; 이산화 변수; 표준단면제원; multi-level optimization; discrete-variables; standard steel profile
Issue Date
2002-09
Publisher
한국전산구조공학회
Citation
한국전산구조공학회논문집, v. 15, no. 3, page. 453-462
Abstract
건설공사의 셜계와 시공에서 표준화된 이산형 강재단면을 이용하고 있으나, 대부분의 최적화 기법에서는 표준강재단면을 사용하기 위해 별도의 이산화 과정을 가지게 되므로 설계결고의 최적성을 보장할 수 없다. 따라서, 본 논문에서는 제안된 알고르즘의 효율성을 높이기 위해 전체구조계와 구조요소계로 나누는 다단계 알고리즘을 적용하였다. 수치해석 과정의 효율성과 최적해의 정확성을 예제를 통하여 비교.검토하였다. Discrete-sizing or standardized steel profiles are used in steel design and construction practice. However, most of numerical optimization methods follow additional step(round-up discrete-sizing routine) to use the standardized steel section profiles, and accordingly the optimality of the resulting design may be doubtful. Thus, in this paper, an efficient multi-level optimization algorithm is proposed to improve the shortcoming of the conventional optimization methods using the round-up discrete-sizing routine. Also, multi-level optimization technique with a decomposition method that separates both system-level and element-level is incorporated in the algorithm to enhance the performance of the proposed algorithms. The proposed algorithm is expected to achieve considerable improvement on both the efficiency of the numerical process and the accuracy of the global optimum.
URI
https://www.kci.go.kr/kciportal/ci/sereArticleSearch/ciSereArtiView.kci?sereArticleSearchBean.artiId=ART000937300https://repository.hanyang.ac.kr/handle/20.500.11754/157402
ISSN
1229-3059
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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