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为了考察热效应对动载轴承润滑性能的影响，建立了动载轴承热流体动力润滑分析的数学模型，联立求解了广义雷诺方程、能量方程、固体热传导方程以及载荷平衡方程，得出了动载轴承的油膜压力分布、油膜温度场分布、轴心轨迹、流量和功耗。在求解过程中针对油膜和轴瓦温度场的时变性的不同，提出对它们分别进行非稳态和准稳态数值求解的方法。另外还采用了不同的温度边界条件进行计算。结果表明：在动载荷作用下，轴承的油膜压力、温度场、轴心轨迹、流量和功耗也随时间作相应的变化，不同的温度边界条件对计算结果有着显著的影响
In order to investigate the effect of thermal effect on the lubrication performance of dynamic bearing, a mathematical model of thermo-hydrodynamic lubrication analysis of dynamic bearing was set up. The generalized Reynolds equation, energy equation, solid heat conduction equation and load balance equation were solved. Oil film bearing pressure distribution, oil film temperature field distribution, axis trajectory, flow and power consumption. In view of the difference of the time variability of the temperature field of the oil film and the bearing bush in the process of solving, a method to solve the unsteady and quasi-steady state numerically is proposed respectively. In addition, different temperature boundary conditions are used for calculation. The results show that under the action of dynamic load, the oil film pressure, temperature field, axial trajectory, flow rate and power consumption of bearings also change with time. Different temperature boundary conditions have a significant effect on the calculation results