基于主动润滑可倾瓦轴承转子系统的振动主动控制  

Vibration active control of tilting pad journal bearing rotor system based on the active lubrication

作　　者：刘宏 宫晓春[2] 王晋麟[3] 

机构地区：[1]海军驻航天一院军事代表室,北京100076 [2]北京强度环境研究所,北京100076 [3]北京航天自动控制研究所,北京100854

出　　处：《强度与环境》2011年第5期8-17,共10页Structure & Environment Engineering

摘　　要：研究一类可倾瓦支承的单盘非对称转子系统的振动主动控制问题。首先建立了系统的非线性动力学方程,针对主动润滑控制系统设计了BP神经网络PID控制器对转子系统进行振动主动控制。通过计算分析可知,采用基于BP-PID的主动润滑系统能够很好的抑制系统的振幅,使系统在很高的转速时才发生油膜失稳,拓宽转子系统稳定运转的转速范围,在转子系统发生油膜失稳时系统的振幅也能够得到极大程度的控制。The vibration active control of an unsymmetrical rotor supported by two tilting pad journal bearings is investigated in this paper. Firstly, the nonlinear governing equation of the rotor system is formulated. Then the BP neural network PID controller is designed with regard to the active lubricated control system is applied to suppress the vibration of the concerning rotor system. After calculation and analysis the persuasive results are obtained. The vibration amplitude of the rotor system is greatly reduced by means of the active lubricated control system through the BP neural network PID controller. The whip instability of the controlled system occurs at a very high rotational speed and the stable operation range is greatly broadened. The vibration amplitude can be significantly suppressed by the active lubricated control system when the rotor runs up against the whip instability.

关 键 词：主动控制 转子系统 可倾瓦轴承 BP神经网络PID 

分 类 号：V524.3[航空宇航科学与技术—人机与环境工程]