摘要
利用UG软件对车辆运输半挂车车架进行CAD建模,将三维模型导入Hypermesh中抽取中性面,并根据实际情况,将物理模型离散成由杆单元、梁单元、弹性单元和实体单元组成的有限元模型,并根据不同的载荷工况施加不同的边界条件,最后在ANSYS中进行求解。通过分析可以知道车架的刚度和强度的分布情况,了解到车架纵梁存在较大的优化空间。最后利用ANSYS的Design Opt模块对纵梁优化,为纵梁轻量化提供依据。
The CAD model of a transport vehicle trailer was set up by use of UG, and the model was imported into Hypermesh for extraction of neutral face. On the basis of the actual situation, the physical model was dispersed to link elements, beam elements, elastic elements and solid elements. Then, different loads were put on the frame according to different boundary conditions, and the model was solved in ANSYS. Finally, the Design Opt module in ANSYS was used to optimize the longitudinal beam, which wowld provide the basis for the lightweight design of longitudinal beam.
出处
《机械工程与自动化》
2012年第4期20-22,共3页
Mechanical Engineering & Automation
关键词
车架
有限元分析
优化
vehicle frame
finite element analysis
optimization
