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항공기 기체 가공용 5-Head Router Machine 구조물의 경량ㆍ고강성화 최적설계
최영휴(Young-Hyu Choi),차상민(Sang-Min Cha),하종식(Jong-Sick Ha),조용주(Yong-Ju Cho) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.11
In this paper, a multi-step optimization using a G.A.(Genetic Algorithm) with variable penalty function is introduced to the structural design optimization of a 5-head route machine. In the first stage of the design optimization, cross-section shapes of the structural members are optimized. The following two stages are static and dynamic design optimization stages. In the static optimization stage, the static compliance and weight of the structure are minimized simultaneously under some dimensional constraints and deflection limits. On the other hand, the dynamic compliance and the weight of the machine structure are minimized simultaneously in the dynamic design optimization stage. The proposed design optimization method was successfully applied to the 5-head router machine design optimization. As the results, static and dynamic compliances of the 5-heas router machine have decreased by 5.3% and 43.6% respectively compared with the initial design, while the weight of the structure also has decreased by 6.6%..