中文摘要：

建立水润滑塑料合金轴承的数学模型，对水润滑条件下塑料合金轴承的弹流润滑问题进行数值模拟，讨论转速和载荷对水润滑膜压力和膜厚的影响。结果表明：在水润滑条件下，转速对水润滑膜的压力影响不明显，而膜厚及最小膜厚随转速的增大而明显增大；随载荷的增大，压力峰值有明显增大，而在入口区压力随载荷增大而减小，膜厚及最小膜厚随载荷增大而减小。

英文摘要：

The mathematical model of water lubricated plastic alloy bearings was established. The numerical simulation of elastohydrodynamic lubrication（EHL）for water-lubricated plastic alloy bearings was carried out and the effects of the speed and the load on the pressure and the film thickness were discussed. The results show that under water-lubricated conditions, the speed has very little effect on the pressure, but the film thickness and minimum film thickness are increased greatly with the increase of speed. The pressure peak is increased greatly and the pressure is decreased at inlet region with the increase of load, the film thickness and the minimum film thickness are decreased greatly with the increase of load.