基于刚度灵敏度分析的客车车身轻量化研究  

A Research on the Lightweighting of Bus Body Based on Stiffness Sensitivity Analysis

作　　者：张代胜[1] 张林涛[1] 谭继锦[1] 石琴[1] 

机构地区：[1]合肥工业大学机械与汽车工程学院,合肥230009

出　　处：《汽车工程》2008年第8期718-720,共3页Automotive Engineering

摘　　要：建立了某国产全承载式客车车身有限元模型,通过静动态电测试验验证模型的准确性,进而进行刚度灵敏度分析确定优化设计变量,运用有限元分析软件进行优化。在优化的基础上提出轻量化方案,达到保证在刚度变化最小及规定强度下使车身骨架质量减轻的目标。A FEM model for the unitary body of a home-made bus is established, which is proved to be accurate by static/dynamic electrometric tests. 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. Thus the goal for lightweighting of body framework is achieved while meeting the requirements on strength with minimum change in stiffness.

关 键 词：客车车身 有限元法 刚度 灵敏度分析 轻量化 

分 类 号：U463.82[机械工程—车辆工程]