SFD-转子系统动力响应分析

建立了SFD-滑动轴承-刚性转子系统和柔性转子系统2种耦合动力模型,采用Runge-Kutta法对上述2种系统的动力学问题进行求解,进而对系统的稳定性和分叉行为进行了研究。研究表明:刚性转子系统能够在一定范围内保持稳定的单周期运动,随后进入准周期;而柔性转子系统则从单周期运动进入准周期、倍周期等运动形态;在此基础上分析了2种系统的不平衡响应曲线。

Research on Dynamic Response of SFD-sliding Bearing Rotor-system

This paper established two mechanics models: SFD-sliding bearing rigid rotor system and flexible rotor system,adopting runge-kutta method to solve dynamic question of the above systems,and then researched stability and bifurcation behavior of the systems.The study has shown: rigid rotor system can keep stable periodic motion in a certain scope,following quasi-periodicity bifurcation.Otherwise,the flexible rotor system came to motion state of quasi-periodicity bifurcation,doubling bifurcation,and so on,from periodic motion.On the basis,the paper analyzed unbalanced response curve of the system.