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滚动轴承在径向载荷作用下,滚动体的受力(接触力)问题是弹性体的接触问题。在这类问题中,载荷与变形、载荷与应力之间的关系是非线性的。对这类问题进行理论分析或实验都比较困难。处理这类问题时,工程上传统地应用由刚性假定做出的结果。本文阐述了如何应用平面光弹性方法根据相似理论来设计模型和模拟加载。作者在试验中使用圆盘作测力计,比较精确地测出各接触滚子的接触力,克服了滚子接触力难以测量的困难,比用传统方法较为符合实际地解决了轴承滚动体负荷的分布问题,得出滚动体接触力分布的新规律。文中列出了有限元计算结果,与光弹试验结果相比,二者十分相近,接触力分布的峰值位置是一致的。本文所得结论,为滚动轴承的理论分析提供了新的依据。
Rolling bearing under radial load, the rolling force (contact force) problem is the elastomer contact problem. In such problems, the relationship between load and deformation, load and stress is nonlinear. Theoretical analysis or experiments on such issues are more difficult. When dealing with this type of problem, the engineering is traditionally applied to the result of a rigid assumption. This article describes how to apply the planar photoelastic method to model and simulate loads based on similarity theory. In the experiment, the disc was used as a dynamometer to measure the contact force of each contact roller more accurately and overcome the difficulty of measuring the contact force of the roller. Compared with the traditional method, it is more practical to solve the problem that the bearing rolling body load The distribution of rolling contact was derived new rules of contact force distribution. The results of finite element calculation are listed in the paper. Compared with the results of photoelastic test, the two are very similar and the peak position of contact force distribution is consistent. The conclusions obtained in this paper provide a new basis for the theoretical analysis of the rolling bearing.