Research on multi-objective optimization of BIW modal

Author

Ting-lei, Yan ; Hui, Xie ; Chao, Li

Author_Institution

State Key Lab. of Adv. Design & Manuf. for Vehicle Body, Changsha, China

fYear

2011

fDate

16-18 April 2011

Firstpage

2522

Lastpage

2525

Abstract

BIW modal optimization with traditional FEM method was inefficiency and usually with much mass increase. FEM analysis combined with Multi-objective Optimization method was used to improve the first order frequency of BIW. Mathematic model was built by response surface method to replace FEM model and NSGA-II was used to get non-dominated solutions. During the optimization plates with high relative sensitivity was used as design variables. The first natural frequency was optimized with the mass of BIW was under control. The method in this paper is useful in big complex structures when do some optimization.

Keywords

automotive components; design engineering; finite element analysis; modal analysis; optimisation; response surface methodology; sensitivity; structural engineering; BIW modal optimization; FEM analysis; design variable; multiobjective optimization method; response surface method; sensitivity; Automotive engineering; Finite element methods; Mathematical model; Optimization; Planning; Response surface methodology; Sensitivity analysis; BIW; modal optimization; multi-objective optimization; response surface method;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics, Communications and Networks (CECNet), 2011 International Conference on

Conference_Location

XianNing

Print_ISBN

978-1-61284-458-9

Type

conf

DOI

10.1109/CECNET.2011.5768836

Filename

5768836