위상 최적화; 하중경로; 차체 강성; 국부강성; Topology optimization; Load-path; Body stiffness; Local stiffness
Issue Date
2014-05
Publisher
한국자동차공학회 / The Korean Society Of Automotive Engineers
Citation
2014 KSAE 부문 종합학술대회, 2014, p.906-907
Abstract
This paper presents topology optimization problem for the load-path development of an automotive body. Conventional topology optimization problem minimizes the weighted compliance in case of a lot of load cases. Unless boundary conditions of load cases are different, conventional optimization problem cannot consider the effectiveness of load cases without discrimination. To improve this problem, the optimization problem is proposed to minimizes compliance of each load case and find the maximum density distribution. Topology optimization is performed on BIW model consist of hexahedral elements and new load-path is appeared.