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황의상(Eysang Hwang),민승재(Seungjae Min) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
Weight reduction while maintain structural performance is one of the most challenging topics in automotive industry. Recent advances in manufacturing technology enable the automotive body structure to be built with multimaterial. In this paper, multiphase level set model is introduced to represent multi-material boundaries and the optimization problem for minimizing the strain energy is formulated. The proposed method is applied to the design of two-dimensional underbody structure and the usefulness is confirmed.
이겨레(Gyeorye Lee),황의상(Eysang Hwang),민승재(Seungjae Min) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
This paper presents the procedure to design a space frame car with lightweight and high performance based on the restrictions imposed by the KSAE Baja rules. The initial concept design is performed to identify the location of space frames by means of topology optimization considering stiffness, strength and natural frequencies. Detail designs of different number of frames with the same total weight are proposed and the performances are compared to evaluate the effectiveness.