为获得某新型推力轴承在某船用轴流压气机中的工作特性并进行试验验证，基于ARMDBearings软件及自编程序对推力轴承特性进行了模拟计算，在全尺寸高速大推力滑动轴承试验台上进行了轴承特性试验研究，并在实机台架试验中对轴瓦温度进行了监测。计算分析了15种工作条件下油膜的压力、厚度、温度、刚度、阻尼及能量损失与推力和转速关系。轴承特性试验主要包括9种稳定工况下的性能试验，以及轴承超载、超速试验中每块轴瓦表面温度及油膜压力的测量。结果表明：模拟计算结果及试验测试得到的油膜温度、压力随推力及转速变化规律基本一致；轴瓦表面最大油膜压力位于支承块背部附近，与推力基本呈线性关系；转子转速越低、推力越大，则油膜厚度越小、油膜刚度及阻尼越大；转子转速越高、推力越大，则油膜温度越高、能量损失越大；在设计点轴承运行参数均有一定安全裕度，该推力轴承可以满足机组使用要求。

In order to obtain a newlydesigned thrust bearing operating characteristics in a marine axial compressor and conduct test verification, thrust bearing characteristics simulation calculation was carried out based on ARMDBearings software and selfdeveloped program. Bearing performance tests were conducted on the fullscale high speed and high thrust sliding bearing test bed. Further more, the bearing pad temperatures were monitored in the real gas turbine bench test. The relationships among the thrust load, rotating speed and the characters of oil film pressure, thickness, temperature, stiffness, damping and power loss were analyzed under 15 working conditions. In the bearing performance experiments, performance experiment was conducted under 9 kinds of stable working conditions and each pad surface temperature and oil film pressure were measured under overload and overspeed conditions. The results show that the variation law of the oil film temperature and pressure versus thrust and rotating speed obtained by experimental test are identical with the simulation calculation results; the biggest oil film pressure on the bearing pad surface is around the support block back and linear with the thrust; the lower the rotating speed and the bigger the thrust, the thinner the oil film thickness and the bigger the oil film stiffness and damping; the higher the rotating speed and the bigger the thrust, the higher the oil film temperature and power loss; there is a margin of safety of the thrust bearing operating parameters at the design point. The thrust bearing can meet the engine running requirements.

TK221

中船集团自立科技项目（202109Z）；黑龙江省自然科学基金（TD2021E001）