Floor Frame Structure Conceptual Design of Car Body by Multi-level Optimization Method
To optimize the floor structure of car body in conceptual design phase,a discrete topo optimization method is implemented.First of all,by several body beam section parameters are collected and simplified as rectangular beam cross section.The parameterized simulation model of concept car body structure is modeled with simplified beams.The floor general structure is determined and redefined the discrete topology domain of car body floor,solves the coupling relations between two kinds of design variables which are topology of the floor beam and connection position of floor beam,through the construct platform and conversion of optimization goals and design constraints between different levels,the multi-island genetic algorithm(MIGA)algorithm was used to seek the optimal solution and fully verifies its accuracy by examples.
Body-in-white Conceptual design Floor structure Topology optimization Multi-level optimization
Huan-quan YUAN Hong-yu WANG Wen-bin HOU Yong-hong ZHAO
GAC Automotive Research & Development Center,Guangzhou 511434,P.R.China School of Automotive Engineering,Dalian University of Technology,Dalian 116024,P.R.China
国际会议
长沙
英文
76-82
2019-08-30（万方平台首次上网日期，不代表论文的发表时间）