Impact of joint on car body stiffness at concept design stage

Author

Chi, Ruifeng ; Wang, Jinwu

Author_Institution

Sch. of Mechatron. Eng., Changchun Univ. of Technol., Changchun, China

fYear

2011

fDate

16-18 April 2011

Firstpage

406

Lastpage

409

Abstract

The impact of joints on car body stiffness was considered in order to forecast the performance of car body structure more accurately in the car body concept design stage. The five main joints were simulated by torsion spring element and rigid elements in concept car body model. Vector direction and stiffness of torsion spring were obtained by solution of stiffness equations of detailed joint model. Each kind of joint was applied for the concept car body model respectively and the impact of each joint on bending stiffness and torsion stiffness were calculated. The impacting factor was introduced in order to compare the impact of different joint on stiffness of car body. At last, the two cases were simulated and the result showed that design precision of car body structure was improved due to consideration of concept joints.

Keywords

automotive engineering; design engineering; elasticity; impact (mechanical); shear modulus; springs (mechanical); torsion; car body stiffness; car body structure; concept design; impact of joints; rigid elements; torsion spring; vector direction; Analytical models; Finite element methods; Joints; Load modeling; Loading; Mathematical model; Springs; Bending stiffness; Concept design; Concept joint; Torsion stiffness;

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.2011.5768898

Filename

5768898