Research on the Mechanism of Rolling Bearing Dynamic System Considering Lubricant Changes

When a rolling bearing operates in a high-temperature environment, the distribution of the lubricant will change, which will cause the film thickness reduction coefficient of the rolling bearing oil film thickness to change, which will in turn cause the rolling bearing dynamic model equation to change. Given the problem that the traditional dynamic model equation does not consider the influence of lubricant changes, but because the change of lubricant will cause the film thickness reduction coefficient of the rolling bearing oil film thickness to change, resulting in a difference between the dynamic simulation signal and the actual signal, this paper considers the lubricant. The influence of various factors with temperature changes is proposed to study the mechanism of rolling bearing dynamic systems considering changes in lubricant. First, the changing trend of the film thickness reduction coefficient of the rolling bearing oil film thickness with temperature is analyzed; secondly, the functional relationship obtained above is substituted into the traditional dynamic model; finally, the simulation signal of the rolling bearing dynamic model considering the change of lubricant is compared with the experiment The signals are analyzed comparatively. Compared with traditional rolling bearing dynamic system mechanism research, the mechanism study of rolling bearing dynamic systems that consider lubricant changes considers more comprehensive factors, is closer to real working conditions, and is closer to experimental signals.