圆弧修形滚子-滚道接触变形计算的拟合方法
The Fitting Method for Calculating the Contact Deformation Between the Circular Crowned Roller and the Raceway

针对圆弧修形滚子-滚道接触变形没有合适计算公式的问题，提出了一种得到接触变形计算公式的新方法——基于数值计算结果的数据拟合方法。使用结构分析中的影响系数法进行了圆弧修形滚子-滚道接触时的接触变形量的计算，然后采用多元线性回归拟合方法得到了接触变形的拟合公式。该公式包括轴承尺寸参数、滚子修形参数及载荷参数，可用于圆弧修形滚子-滚道接触变形的快速计算，因此可以提高圆弧修形滚子轴承动力学特性分析的效率。
The new fitting method for calculating the contact deformation between the circular crowned roller and the raceway based on the numerical results is proposed in order to solve the problem that there is no suitable deformation formula for this kind of contact pair. Firstly, the affecting coefficient method for structure analysis is used to analyze the contact deformation between the circular crowned roller and the raceway, and then the multiple linear regression method is applied to obtain the fitting formula of contact deformation. The formula includes the dimensions and crowned parameters of circular crowned roller bearing together with the load parameter, and can be used for fast calculatiing the contact deformation between the circular crowned roller and the raceway. Therefore the formula is suitable to efficiently analyze the dynamics characteristics of the circular crowned roller bearings