Thickness Optimization of a Vehicle BIW Considering Structural Stiffness
Researches on structural design of a vehicle for weight reduction have been steadily conducted to reduce manufacturing cost and enhance fuel efficiency.In this research, structural optimization for the body in white (BIW) of a vehicle is conducted to reduce weight.Thicknesses of all members of the BIW are taken as design variables of the problem.The BIW in this research is composed of 196 members.If we use all of the members of the BIW as design variables, it will take unreasonable time to obtain an optimum solution because of large number of design variables.Therefore, we linked the 196 number of members to 64 groups according to the expert’s opinion and used 64 groups of the members as design variables.Since the number of design variables of 64 is still too many, we applied a metamodel-based design approach in this research.The metamodel-based design approach generates metamodels which can replace a numerically expensive real experiments or simulations and uses them for design optimization.The results of this research demonstrated the metamodel-based design optimization approach to be effective for a large scale design problem
Thickness Optimization Vehicle BIW Metamodel-based Optimization
Gabseong Lee Dohyun Park Dong-Hoon Choi Dae Seung Kim
Graduate School of Mechanical Engineering,Hanyang University,Seoul,Republic of Korea Dept.of Mechanical Engineering,Hanyang University,Seoul,Republic of Korea R&D Division,Hyundai Motors Group,Hwaseong-si,Gyeonggi-do,Republic of Korea
国际会议
黄山
英文
1-2
2012-06-18（万方平台首次上网日期，不代表论文的发表时间）