双层滚珠轴承的载荷分布研究

金超武; 余旭东; 朱益利; 徐龙祥; 李攀登

双层滚珠轴承的载荷分布研究

1.
南京航空航天大学机电学院, 南京 210016

基金项目:

国家自然科学基金项目(51205186)、中国博士后科学基金项目(2012M511264)、高等学校博士学科点专项科研基金项目(20123218120024)资助.

详细信息

作者简介:
金超武(1980-),讲师,博士,研究方向为磁悬浮技术和保护轴承,jinchaowu@nuaa.edu.cn

计量
- 文章访问数: 151
- HTML全文浏览量: 20
- PDF下载量: 5
- 被引次数: 0
出版历程
- 收稿日期: 2012-10-23
- 刊出日期: 2015-06-10

Research on the Load Distribution of a Double-decker Ball Bearing

1.
College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016

摘要

摘要: 针对双层滚珠轴承载荷分布问题进行了研究。由于传统理论计算方法中关于刚性套圈的假设和Hertz接触理论半无限空间的边界条件并不完全符合实际情况, 因此计算结果与实际情况有一定的误差。基于有限元分析方法, 提出了对滚珠进行映射网格划分以及对接触区域网格进行局部加密的方法, 分析了在一定载荷作用下滚珠与套圈沟道的接触应力以及弹性变形, 并将有限元法分析结果与Hertz理论求解结果进行了比较, 最后对计算结果进行了实验验证。
- 双层滚珠轴承 /
- 载荷分布 /
- 有限元法 /
- ANSYS接触分析
Abstract: The load distribution of double-decker ball bearing is analyzed in this paper. The traditional methods to analyze the bearing load distribution are always based on the assumption of rigid races and half infinite space boundary conditions utilizing Hertz contact theory.. As the traditional results are not entirely realistic, the finite element method (FEM) is put forward with mapped meshing on ball sphere and increasing the mesh density of the contact area. This method is adopted to analyze the contact stress and deformation at the contact points under different load conditions. And the results based on FEM analysis are compared with the theoretical results using Hertz contact theory. Finally, the calculated results of FEM are also verified by relevant experiments.
- ball bearings /
- boundary conditions /
- calculations /
- computer software

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参考文献(8)

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