在水润滑条件下,对改性聚醚醚酮复合材料齿轮副啮合时的非稳态热弹流润滑机理进行了数值模拟研究,并将计算结果与等温时变解的啮合点压力、膜厚等进行了对比。结果表明,水润滑条件下,复合材料齿轮的啮合点处存在弹流润滑;在考虑温度场的情况下,水膜压力受温度的影响不大,而轮齿啮入点一侧的膜厚要比等温解的膜厚小,而在啮出点一侧则正好相反。 In the condition of water lubrication, the unsteady thermo-elastohydrodynamic lubrication mechanism of the gear pair meshing with modified polyetheretherketone composite was numerically simulated. The calculation results were compared with those of the isothermal time-varying meshing point pressure, film thickness And so on were compared. The results show that there exists elastic fluid lubrication at the meshing point of the gear under the condition of water lubrication. Under the condition of temperature field, the water film pressure is not affected by the temperature, and the film thickness on the side of the meshing point Than the isothermal solution of the film thickness is small, but in the point out of the side is exactly the opposite.