流体的流动状态将直接影响轴承的润滑特性，轴承的润滑特性主要由润滑剂的粘度决定。工作中润滑剂的粘度变化影响其运动速度的变化，从而影响润滑剂的温升及内剪切稀化的程度等。尤其在薄膜润滑中，润滑膜的厚度极小，润滑剂流体粒子间的相对运动速度增大，其润滑剂特性的变化更为突出。以连续变化的粘度修正模型来研究在微小间隙内润滑剂的速度特性，得出间隙内速度的分布规律，为研究薄膜流体温度场和剪切稀化问题提供计算数据。

The lubrication effect is directly affected by flowing characteristic of fluid. The viscosity distribution of lubricant is the key point to the bearing. The viscosity variation will directly influence flowing velocity of the lubricants. Apart from temperature rise, the speed change will result in rare faction of the cut in the fluid. In case thin film lubrication, the thickness of fluid film is tiny, relative moving velocity of interparticles is larger in the lubricant, therefore, the variation of lubricant properties will be more prominent. The velocity characteristics of lubricant in micro-clearance are researched with the continuous correcting model of viscosity. The distribution laws of velocity are obtained in the micro-clearance. The data are provided for the study of temperature field and rare faction of the cut under the thin film lubrication.