论文部分内容阅读
建立了考虑多沟槽润滑结构和实际工况边界条件的水润滑橡胶合金轴承弹流润滑数学模型,数值计算了有无沟槽以及沟槽半径对润滑性能的影响.计算结果表明:沟槽对水润滑橡胶合金轴承润滑性能影响显著,即在沟槽处膜厚较大,压力较低,而在承载区膜厚较小,压力较高,周向方向上压力分布不连续,并且在最小膜厚处轴向方向的入口和出口附近出现了两个压力峰值;水膜压力和最小膜厚均随沟槽半径的增大而减小;承载能力随偏心率增大而增大,随沟槽半径和过渡圆弧半径的增大而减小;摩擦系数随转速增大而略有增大,随沟槽半径的增大显著增加.
The mathematical model of Elubrication Lubrication of rubber bearing was established considering the multi-groove lubrication structure and the actual working condition boundary conditions, and the influence of the existence of groove and groove radius on the lubrication performance was calculated. The calculation results show that: The lubrication performance of water lubricated rubber alloy bearings is significant, that is, the film thickness is thicker and the pressure is lower at the groove, while the film thickness is smaller and the pressure is higher in the bearing area, the pressure distribution in the circumferential direction is not continuous, Two pressure peaks appeared near the inlet and outlet in the thick axial direction. The water film pressure and the minimum film thickness both decreased with the increase of the groove radius. The bearing capacity increased with the eccentricity increasing. Radius and the transition arc radius increases and decreases; friction coefficient increases slightly with increasing speed, with the increase of the radius of the groove increases significantly.