本文用解析法讨论了具有外伸重量双轴承机械的临界转速和角进动,考虑了陀螺力矩(当转动时)、转动惯量(当不转动时)和剪切变形(在各种情况下),分析和研究了所有型式的转子进动和不转动轴的固有频率。 In this paper, the critical speed and angular precession of a double-bearing machine with overhanging weight are discussed in terms of analytical methods. The gyroscopic moment (when rotating), the moment of inertia (when not rotating) and the shear deformation (under various conditions) , Analyzes and studies the natural frequencies of all types of rotor precession and non-rotation axes.