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流体动压滑动轴承广泛地应用在各种机器中,一些高速旋转机械转子的振动问题至今还未完全解决.诸如转子的临界转速、不稳定涡动和不平衡响应等振动现象和支撑轴承的刚度、阻尼有很大的关系.因此,研究轴承油膜的刚度、阻尼有重大现实意义. 虽然国外已经有一些关于油膜刚度、阻尼系数的试验研究,其中有一部分还取得了较好的结果.但是这些研究工作尚存在如下问题: 1.没有具体分析惯性力、轴的挠度对试验结果的影响,但又忽略了这些影响.
Hydrodynamic plain sliding bearings are widely used in a variety of machines, and the vibration problems of some high-speed rotating machinery rotors have not yet been fully resolved so far. Vibration phenomena such as the critical speed of the rotor, unstable eddy and unbalance responses, and the stiffness of the supporting bearings , Damping has a great relationship.Therefore, the study of bearing stiffness, damping has great practical significance.Although there are some foreign countries on the film stiffness, damping coefficient of the experimental study, some of them also achieved good results.However, these The following problems still exist in the research work: 1. The effects of the inertia force and shaft deflection on the test results are not analyzed specifically, but these effects are ignored.