다분야 제약 조건을 고려한 알루미늄 스페이스 프레임 차체의 최적 설계

An ASF (Aluminum Space Frame) B.I.W is optimized for reducing the weight while satisfying static stiffness, vibration, low and high-speed crash constraints simultaneously. In order to solve this multidisciplinary constraints design problem for the ASF B.I.W, DOE, RSM and numerical optimization techniques are systematically used. The proposed optimization method used only 20 analyses to solve the 11-design variable design problem. Then, the optimal design can reduce the 15% of total weight while satisfying all of the design constraints.