Zhao Jing, Li Jia-lin, Xiong Rui, et al. A Structure Safety Analysis and Lightweight Design for Coach Chassis[J]. 2018, 35(6): 31-36.DOI: 10.12052/gdutxb.180086.
A Structure Safety Analysis and Lightweight Design for Coach Chassis
The traditional vehicle design and optimization relies on the expert knowledge which leads to long development cycle
mass consumption of human resources and materials. In addition
this kind of method also determines that it cannot meet the market demand. The development of the finite element method provides a solution for vehicle structure design and optimization. Aiming at improving the handling stability and the structure safety
this research focuses on the lightweight design of a coach chassis. Firstly
a finite element model and its simplified model are constructed based on the finite element method. In this connection
the loading mode and working condition are defined. By combining the practical engineering situation
the chassis structure is modified and the objective function
cost function and variables are defined
and the proposed scheme for lightweight design of the coach chassis is proposed. The modal analysis
stress analysis and deformation analysis of the proposed scheme under bending condition
braking condition and steering condition are verified. The results show that the proposed lightweight design scheme effectively solves the lightweight optimization of the coach chassis based on the dynamic performance of the vehicle
as well as improving the handling stability and the structure safety.
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references
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