중간매개 반응표면 모델을 이용한 5mph 차량 범퍼 단면 형상 최적설계

This paper presents a new method for the 5mph vehicle s bumper section shape optimization. The Intermediate Response Surface Modeling (IRSM) technique is newly introduced to approximate the nonlinear force-deflection curves. This can avoid the excessive 3D nonlinear FEM analysis during the optimization process. Then, the accuracy of the IRSM models is examined by comparing their results with those of the 3D nonlinear FEM. Finally it is shown that the proposed approach is effective to design the 5mph vehicle bumper section.