摘要
以南京IVECO某车型为例,根据白车身总成及零件的装配关系建立了白车身三维实体模型。基于CATIA的三维实体模型在有限元分析软件中经过曲面和曲线的修改、曲面重构、结构的合理简化,建立了车身详细有限元模型。对模型进行静态扭转和模态分析,寻找整车应力分布规律,并把应力集中的危险点位置与跑车试验结果进行对比,对车身设计具有一定的参考作用。
The Nanjing IVECO bus is given as an example for finite element modeling in this paper. The three-dimensional CAD model of the body in-white is created on connection property between assembly and parts. Based on the CAD model, the detailed body in-white model is built in ANSYS by modifying the curve and surface and the geometrical reconstruction of the structures. Through the static torsion analysis and modal analysis on the whole body in-white, its stress distribution is plotted, and compared the location of dangerous stress points on the model with that of the real body measured by the road test. It will be useful for the bus body design.
出处
《机械制造与自动化》
2006年第6期11-13,共3页
Machine Building & Automation
关键词
白车身
有限元
刚度
模态
body in-white
finite element
stiffness
modal analysis
