角接触球轴承热性能随机性分析

Here, taking the angular contact ball bearing 25TAC62B as the research object, the heat generation of the bearing is calculated using the SKF method. The outer surface of the bearing housing is divided into five surfaces. Based on the stochastic finite element method, the finite element model of the assembly of the bearing housing and the bearing is simulated and analyzed. The variation law of the discreteness degree of the temperatures of the inner and outer rings and the rolling elements of the bearing is studied, as well as the sensitivity of the convection coefficients of the five outer surfaces of the bearing housing, and the radial thermal deformation of the inner surface of the bearing housing and the outer surface of the outer ring of the bearing is analyzed. The research results have certain engineering practical value and lay a foundation for further research on the bearing temperature control and the stochastic characteristics of the thermal-structural coupling of the bearing components.

这里以角接触球轴承25TAC62B为研究对象,采用SKF法计算轴承的发热量,将轴承座外表面分为五个面,基于随机有限元方法对轴承座与轴承的装配体有限元模型进行仿真分析,研究轴承内外圈及滚动体温度的离散程度变化规律,以及对轴承座五个外表面对流系数的敏感性,并分析轴承座内表面与轴承外圈外表面的径向热变形情况。研究结果具有一定的工程实用价值,为进一步研究轴承温度控制和轴承部件热结构耦合随机特性奠定基础。