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황상진(Sangjin Hwang),신정규(Jungkyu Shin),박경진(Gyungjin Park),황인진(Injin Hwang),이권희(Kwonhee Lee) 한국자동차공학회 2002 한국자동차공학회 Symposium Vol.2002 No.11
A lot of electric vehicles have usually adopted the ASF(Aluminum Space Frame) type rather than the monocoque<br/> or unitary construction type since the first is easier to reduce mass efficiently with the required stiffness and strength.<br/> Through the structural analysis, LSV(Low Speed Vehicle) performances such as stiffness and strength are evaluated.<br/> Based on the structural analysis, the optimization formulation of the ASF is set to decrease mass with satisfying<br/> stress and stiffness constraints. While it is assumed that sectional shapes of the members in ASF are fixed, the<br/> optimum thickness of members is determined. Through the optimization, the members that play important roles in<br/> the static stiffness improvement are found. Finally, the performances of the initial design and the optimum design are<br/> compared. The structural analysis and optimization are performed using the commercial software, FEMB/GENESIS<br/> Ver.7.0.