转子动力学研究中的若干问题

本文分析了当前转子动力学研究的状况及趋势,提出了对一些课题的展望。所讨论的问题为:滚动轴承引起的几种特殊的转子振动现象;篦齿式封严装置(气封)的气弹力;失调叶片盘的振动机理,挤压油膜轴承的工作机理,转轴裂纹的振动监视,螺桨盘的颤振涡动。

SOME PROBLEMS IN RESEARCH OF ROTOR DYNAMICS

This paper elaborates the state-of-arts of studies on some problems in rotor dynamics, which are as follows, l.some special vibration behaviours caused by the rolling bearings; 2.aero-elastic forces produced in the labyrinth seals; 3. vibrationmechanisms of the mistuned bladed disk; 4.mechanisms of the SFD; 5.vibration monitoring of the cracked shafts; 6.flutter whirling of the propeller rotor system.Some opinions of the author about these problems are stated, such as improving the model of a mistuned bladed disk may be one of the most important measures to gain the confident results of research on this subject, some aspects must be taken seriously in research of monitoring the cracked shafts,etc.