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최적 공간 배치 설계를 위한 개선된 유전 알고리즘에 관한 연구
한성남,이규열,노명일 한국경영과학회 2001 한국경영과학회 학술대회논문집 Vol.- No.1(2)
In this study, an improved genetic algorithm (GA) approach to get a solution for a facility layout problem with inner structure walls and passages is proposed. In the proposed algorithm, a layout of facilities is modeled in a four-segmented chromosome including positions of the passages. A relationship between the facilities and passages is represented in an adjacency graph, and the shortest path and its distance between two facilities are calculated using the Dijkstra's algorithm. Numerical testing shows that the proposed algorithm performs better than other existing algorithm for the optimal facility layout design. Finally, the proposed algorithm is applied to a compartment layout problem of a naval ship and the computational results are compared with the actual compartment layout of the naval ship.
함형길,한성남,김경남,이성행,Hahm, Hyung-Gil,Han, Sung-Nam,Kim, Kyoung-Nam,Lee, Seong-Haeng 한국공간구조학회 2007 한국공간구조학회지 Vol.7 No.5
최근, 구조물의 건설에서 경제적으로 개선된 구조시스템을 개발하는데 많은 역량이 집중되고 있다. 이에 따라, 구조물을 단순화시키고 시공기간을 단축시키고자 고성능강의 사용이 증가되고 있다. 구조물에 가해지는 단면적을 효과적으로 분배시키고, 자중감소와 용접개소를 줄일 수 있는 이점 등으로 인하여, 구조요소로서 LP강판에 대한 관심이 늘고 있다. 이러한 LP강판은 유럽에서 개발되어, 한국에서도 강구조물에 급속도로 사용이 증가되고 있으나, 이에 대한 구조적인 적용검토에 대한 연구는 아직 미흡한 상태이다. 본 연구에서는 유한요소해석의 고체요소을 이용하여 여러 단면형상에 대한 단면력과 처짐을 검토하여, 국내 생산 가능한 LP강판 제품에 대한 작업성, 효율성 및 경제성을 확인하였다. Recently, the trend of construction has been concentrated on the development of structural systems improved economically. As a result, the usage of High Performance Steel which simplifies the girder structures and shortens the construction time is increasing. Also the interest in Longitudinally Profiled(LP) plate as a structural element for girders has been increased. The LP can distribute efficiently the sectional force applied to the structure, and also reduce the self-weight and the number of welding points. The LP plate was developed in Europe originally and its application has been increased rapidly on steel structures in Korea. Though it is used widely and internationally, the study for the LP plate application is rarely performed. In this paper, sectional stress and deflections were analyzed in the different section types by solid element in the finite element method; finally the workability, as well as economical efficiency of the LP plate produced in Korea was evaluated.