English

应用科学学报 ›› 1987, Vol. 5 ›› Issue (4): 317-322.

• 论文 • 上一篇    下一篇

柔性旋转系统油膜失稳转速下界值估计的数学论证

张文   

  1. 复旦大学
  • 收稿日期:1984-07-12 修回日期:1984-11-03 出版日期:1987-12-31 发布日期:1987-12-31
  • 基金资助:
    中国科学院科学基金资助课题

THE MATHEMATICAL DISCUSSION ON THE ESTIMATION OF THE STABILITY THRESHOLD SPEED OF FLEXIBLE ROTOR SYSTEMS IN FLUID-FILM BEARINGS

ZHANG WEN   

  1. Fudan University
  • Received:1984-07-12 Revised:1984-11-03 Online:1987-12-31 Published:1987-12-31

PDF

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摘要： 本文对由油膜轴承支撑的柔性转子系统的油膜振荡失稳门槛转速值的估计作了研究,从理论上证明了如下事实:一般的转子系统的失稳门槛速度必大于对应的等价单转盘转子的失稳门槛速度.这一结论提供了一个用以估计实际转子系统失稳转速的简单工程计算方法.

Abstract: The paper is devoted to the discussion of the stability threshold speed of flexible rotor sys tems in fluid-film bearings. It is proved theoretically that the stability threshold speed of a general rotor system is always higher than the threshold speed of the corresponding equivalent single disk rotor. The conclusion offers us a simple approach to estimate the threshold speed of an actural rotor system and provide a theoretical foundation for the approach.