基于 ANSYS 发动机活塞有限元的分析与优化
Based on ANSYS Finite Element Analysis of Engine Piston and Optimization
孙庆荣 1杨洋1
作者信息
- 1. 皖江职业教育中心学校，安徽 马鞍山 243000
- 折叠
摘要
对活塞在机械负荷作用下的应力和变形进行了研究。首先，利用三维制图软件UG建立了内燃机活塞的几何模型，在三维有限元分析软件中转换有限元模型。然后探讨了活塞机械载荷的确定方法。完成了活塞在机械载荷作用下的应力与变形分析，并考虑了活塞裙部侧推力的影响。结果表明：活塞的应力主要受机械载荷的影响，同时活塞变形呈轴对称分布，变形后裙部外形轮廓形状发生较大变化。因此，本文的研究结果将为活塞改进设计提供参考。
Abstract
The purpose of this thesis is to study the stress and deformation of piston under influence of the mechani -cal load.First,the piston geometry model is established by using 3D graphics software UG,which can be transformed into finite element analysis model in 3 D finite element software .Then the mechanical load of piston is determined . The stress and deformation of piston under the action of the mechanical load and the effect of mechanical are ana -lyzed,and the side thrust force of piston skirt is taking into consideration during analysis .Results show that the pis-ton mechanical stress is mainly influenced by mechanical load .The piston deformation takes the form of axial sym-metry distribution ,there is a change of piston skirt profile after deformation .The results of this research could pro-vide foundation for improving the design of piston .
关键词
活塞/有限元/机械载荷/边界条件Key words
piston/FEM/mechanical load/boundary condition引用本文复制引用
出版年
2014
NETL
NSTL
万方数据