Title :
Shape optimization of car body structure based on Uniform Design method
Author_Institution :
Dept. of Mech. & Power Eng., Nanchang Inst. of Technol., Nanchang
Abstract :
A finite element model for a domestic car-body is built. Based on the stiffness criterion, the stiffness sensitivity of the whole auto-body structure parts are analyzed under torsion and bending loads. Based on the results, the design of the structure and dimension of the body parts is optimized and the stiffness and sensitivity of the whole body is proved to be more reasonable. The Uniform Design method is used to arrange tests. The test results show after appropriate optimization the weight of the vehicle automobile body reduced form 301.5 Kg to 292.6 Kg when the anti-curving and anti-torsional rigidity of the autobody maintained invariable.
Keywords :
automotive components; design engineering; finite element analysis; road vehicles; anti-curving rigidity; anti-torsional rigidity; bending loads; car body structure; domestic car-body; finite element model; shape optimization; stiffness criterion; stiffness sensitivity; torsion loads; uniform design method; vehicle automobile body; Arithmetic; Automobiles; Design methodology; Design optimization; Optimization methods; Shape; Testing; Thin wall structures; Topology; Vehicles; FEA; Uniform Design; autobody; sensitivity analysis; shape optimization;
Conference_Titel :
Vehicle Power and Propulsion Conference, 2008. VPPC '08. IEEE
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-1848-0
Electronic_ISBN :
978-1-4244-1849-7
DOI :
10.1109/VPPC.2008.4677411
