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油膜轴承的性能主要由轴承的动压、静压混合效应决定,以雷诺方程为基础,建立油膜轴承压力特性和油膜间隙函数的数学模型,构造流体连续性方程,采用数值解法求解油膜轴承动静压混合效应,运用MATLAB软件实现油膜轴承压力场的三维仿真。结果表明:合理选择轴承半径、偏心率、转速、油腔半角、油膜间隙、供油压力能获得较理想的动静压油膜混合效应,仿真结果与实测结果接近。
The performance of the oil film bearing is mainly decided by the dynamic pressure and the static pressure mixing effect of the bearing. Based on the Reynolds equation, a mathematical model of the oil film bearing pressure characteristic and the oil film gap function is established. The fluid continuity equation is constructed. Mixed effects, the use of MATLAB software oil film bearing pressure field of three-dimensional simulation. The results show that the mixing effect of dynamic and static pressure oil film can be obtained by reasonably selecting the bearing radius, eccentricity, rotation speed, oil chamber half angle, oil film gap and oil supply pressure. The simulation results are close to the measured ones.