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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.
In this paper, the estimation of the rotational speed threshold value of the oil film oscillation instability of a flexible rotor system supported by oil film bearings is studied. It is theoretically proved that the threshold speed of instability of the general rotor system must be greater than that of the corresponding equivalent single-disc rotor This conclusion provides a simple engineering calculation method to estimate the rotational speed of the actual rotor system.