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Topology Optimization of a Vehicle's Hood Considering Static Stiffness  

Han, Seog-Young (한양대학교 기계공학부)
Choi, Sang-Hyuk (한양대학교 대학원 기계공학과)
Park, Jae-Yong (한양대학교 대학원 기계공학과)
Hwang, Joon-Seong (한양대학교 대학원 기계공학과)
Kim, Min-Sue (한양대학교 대학원 기계공학과)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.16, no.1, 2007 , pp. 69-74 More about this Journal
Abstract
Topology optimization of the inner reinforcement for a vehicle's hood has been performed by evolutionary structural optimization(ESO) using a smoothing scheme. The purpose of this study is to obtain optimal topology of the inner reinforcement for a vehicle's hood considering the static stiffness of bending and torsion simultaneously. To do this, the multiobjective optimization technique was implemented. Optimal topologies were obtained by the ESO method. From several combinations of weighting factors, a Pareto-optimal solution was obtained. Also, a smoothing scheme was implemented to suppress the checkerboard pattern in the procedure of topology optimization. It is concluded that ESO method with a smoothing scheme is effectively applied to topology optimization of the inner reinforcement of a vehicle's hood considering the static stiffness of bending and torsion.
Keywords
Topology optimization; Checkerboard patteren; Multiobjective optimization; Inner reinforcement of a vehicle's hood; ESO;
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