中文摘要：

为了减小滚子的边缘效应和偏歪斜效应,采用Eyring非牛顿流变模型,将抛物线修形函数应用于有限长线接触热弹流润滑中,压力求解采用多重网格技术,温度求解采用逐列扫描技术。当圆柱滚子歪斜后,采用特殊的坐标变换技术求解。当圆柱滚子偏斜后,先给定无量纲载荷偏距的初始值E_w,然后求得油膜压力和油膜厚度,计算无量纲力矩M。计算力矩的相对误差Err_M,同时通过高松弛得到载荷偏距的新值。当滚子分别处于理想状态、偏斜状态、歪斜状态和偏歪斜耦合状态时,对滚子母线进行修形都可减小滚子的边缘效应,并能减小滚子的偏斜或歪斜效应;滚子处于4种状态下时,滚子母线修形存在一个最佳量。4种滚子状态对应的最佳修形量分别为9、11、14和16μm。采用给直母线滚子加上一个凸度函数进行修形的方法简单可行,为滚子修形的工程应用提供了新思路。

英文摘要：

In order to reduce the edge effect,the tilting and skew effect of the roller. Using the Eyring Non- Newtonian fluid model,the parabolic modification function is applied to a finite line contact thermal EHL model. The pressure is solved with multilevel method and the temperature is calculated with sequential column sweeping technique. A special coordinate transformation technology is used for the solving of cylindrical roller skew. For the tilting rollers,the initial value of a dimensionless load offset distance Ew is given,and then the oil film pressure,the film thickness,and the dimensionless moment M are obtained. Moreover,the relative error of torque Err M is calculated,and a new value of the load is obtained simultaneously. when the roller is at the ideal,the tilting,the skew or the tilting coupled with the skew status,the profile modification for the roller generatrix can reduce the edge effect and the tilting or the skew effect. In addition,an optimum value of the profile modification for the roller generatrix exists at the four kinds of status. The optimum value is 9,11,14 and 16 mm at the four status. The method which a profile modification function is added on the straight roller generatrix is simple and feasible. A new idea for the engineering application of the roller profile modification is provided.