半承载式客车车身骨架有限元建模和分析  

Finite element modeling and analysis of the semi-integral bus body frame

作　　者：高玉华[1] 李华香[1] 张代胜[1] 

机构地区：[1]合肥工业大学机械与汽车工程学院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2007年第4期493-497,共5页Journal of Hefei University of Technology：Natural Science

基　　金：安徽省十一五重点资助项目(06012082B)

摘　　要：文章在建立半承载式车身骨架板梁有限元模型的基础上,对车身骨架的强度、动态(模态)性能进行分析及静动态强度试验,建模中采用变截面梁,以便真实地模拟车身受力情况;结果表明有限元模型精度较高,骨架强度满足要求,存在优化空间,为轻量化提供参考依据。The finite element（FM） models of the beams and plates and the FM model of the whole vehicle are established. Strength and modal analysis of the frame is carried out based on experiments and calculations. The static strength test results prove that the FE model has good analytical precision. The strength of the frame meets the requirements, and the bus body structure can be lightened further.

关 键 词：半承载式车身 有限元方法 强度分析 模态分析 强度试验 

分 类 号：U462.2[机械工程—车辆工程]