A study on shape optimization of bus body structure based on stiffness sensitivity analysis

Author

Xingwang, Zhang ; Zhen, Tao

Author_Institution

Nanchang Inst. of Technol., Nanchang, China

fYear

2009

fDate

26-29 Nov. 2009

Firstpage

1225

Lastpage

1229

Abstract

The research of autobody lightweight technology is an important mainstream in the autobody design. In this paper A FEM model for the unitary body of a home-made bus is established .Then optimization design variables are determined through stiffness sensitivity analysis and by using finite element analysis software, an optimization is conducted, based on which a lightweighting scheme is put forward. The experiment indicated that after appropriate optimization the mass of the whole car body decrease 19.35 Kg and the stiffness of the autobody maintained invariable.

Keywords

automotive components; design engineering; elastic constants; finite element analysis; lightweight structures; optimisation; sensitivity analysis; shapes (structures); FEM; autobody design; autobody lightweight technology; bus body structure; car body; finite element method; shape optimization; stiffness sensitivity analysis; Arithmetic; Design optimization; Finite element methods; Optimization methods; Quadratic programming; Sensitivity analysis; Shape; Testing; Thin wall structures; Topology; Bus Body; Finite Element Method; Lightweighting; Sensitivity Analysis; Stiffness;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer-Aided Industrial Design & Conceptual Design, 2009. CAID & CD 2009. IEEE 10th International Conference on

Conference_Location

Wenzhou

Print_ISBN

978-1-4244-5266-8

Electronic_ISBN

978-1-4244-5268-2

Type

conf

DOI

10.1109/CAIDCD.2009.5375216

Filename

5375216