This work focuses on the rotor dynamic analysis of the vertical hydro-hybrid bearing-rotor system of a two-circuit main loop liquid Sodium pump system. A new modelling method for the vertical hydro-hybrid bearing-rotor system is put forward. Lubrication parameters are compared with the reference, which verifies correctness of the model. Contours pressure of the bearing are presented. Modal analysis of the rotor system is performed. The first four modes of the system are extracted. Harmonic responses of the system are simulated. Time histories of the displacements, their Fast Fourier transforms (FFT) and axis orbits at different positions of the plain journal bearing, the impeller and the rolling element bearing under different operating conditions are analyzed. Resonance of the rotor system will not be induced under rated operation conditions. Research results are of significance for such vertical hydro-hybrid bearing rotor systems.

这项工作的重点是两回路主回路液钠泵系统的垂直混合液压轴承-转子系统的转子动力学分析。提出了一种新型的垂直混合液压轴承－转子系统建模方法。将润滑参数与参考值进行比较，从而验证模型的正确性。介绍了轴承的轮廓压力。进行转子系统的模态分析。提取系统的前四个模式。模拟了系统的谐波响应。分析了滑动轴颈轴承，叶轮和滚动元件轴承在不同工况下不同位置的位移，它们的快速傅里叶变换（FFT）和轴轨道的时间历史。在额定运行条件下，不会引起转子系统的共振。