基于ANSYS Workbench对圆柱面过盈配合接触应力的研究

Research on contact stress of cylinder interference fit based on the ANSYS Workbench

利用有限元分析软件ANSYS Workbench,模拟空心轴与包容件的过盈配合过程,通过改变单一因素的实验方法,分析圆柱面过盈配合中接触应力分布情况和各个因素的关系.本文分析了过盈量、包容件外径、接触宽度、轴向拉力和压力的影响因素.对实验结果进行分析得出如下结论:轴和包容件的接触区域的最高等效应力区,受到边缘效应的影响,最高应力集中区出现在端部边缘处.包容件在靠近边缘的中间部位出现低应力区域.空心轴表面的应力值呈现出从一端到另端逐渐增加的现象.

Using finite element analysis software ANSYS Workbench,the simulation of the hollow shaft and containing a process, by changing the single factor experiment method, analysis of interference fit of cylinder is contact stress distribution and the relationship between the factors. The interference are analyzed in this paper, the quantity, inclusive a diameter, contact width, the influence factors of axial tension and stress. Analysis of experimental results the following conclusions ： shaft and tolerance of contact area of the maximum equivalent stress area, under the influence of edge effect, high stress, high in the end edge. Containing a appears near the edge of the middle low stress area. On the surface of the hollow shaft stress value present a growing phenomenon from one end to the other end.