长途客车车身骨架有限元模态分析  

Intercity bus body frame finite element modal analysis

作　　者：东风 

机构地区：[1]内蒙古交通职业技术学院汽车工程系,内蒙古赤峰024005

出　　处：《汽车实用技术》2013年第1期9-12,共4页Automobile Applied Technology

摘　　要：本文以某型号国产长途客车作为研究对象,利用Hyperworks软件建立了长途客车车身骨架的几何模型,充分考虑了边界条件的处理与简化,以及车身结构上不同质量及载荷的处理。结合模态分析计算的工况,对车身各围进行较全面的自由振动模态分析,获得了车身固有频率及相应的振型。针对车身骨架的分析计算结果作出相应的评估,对车身结构的改进提出合理的意见和建议。Based on a certain type of domestic intercity bus as the research object, using Hyperworks software to establish the intercity bus body frame geometry model, fully considering the boundary conditions of processing and simplify the structure of the body, as well as the different quality and load processing. Com -bined with modal analysis and calculation of the condition, for the body circumference are comprehensively free vibration modal analysis for the body natural frequencies and corresponding vibration mode. According to the analysis of the body frame calculation results make corresponding evaluation, the body structure is put forward to improve the reasonable opinions and Suggestions.

关 键 词：长途客车 车身骨架 有限元 模态分析 

分 类 号：U461.91[机械工程—车辆工程]