摘要
为了揭示交叉耦合效应对转子/定子碰摩响应的影响,解析推导了考虑定子质量、碰摩面刚度及交叉耦合阻尼和刚度项的转子/定子模型的同频全周碰摩解,并分析了该解的稳定性.结果表明:碰摩时转子的交叉耦合刚度和定子的交叉耦合阻尼可以减少摩擦力向转子横向振动的能量输入,从而减小碰摩力和转子碰摩响应的幅值.依据此特性,本文提出了通过产生交叉耦合效应来主动抑制转子碰摩破坏的控制思想,并通过仿真计算说明了相应控制方法的有效性.
This paper investigated the control strategies for the active suppression of rotor/stator rubbing. First,the synchronous full annular rubbing solutions of a rotor/stator model,which took into account the dynamics of the rotor,the stator and the contact stiffness,were solved analytically. The stability of the solutions was then analyzed. Secondly,the stability characteristics of the model with cross-coupling damping or stiffness were studied,and their relations with the rubbing friction were revealed. Based ...
出处
《动力学与控制学报》
2008年第4期337-342,共6页
Journal of Dynamics and Control
基金
国家自然科学基金项目(10472086)~~
关键词
转子/定子碰摩
干摩擦
交叉耦合效应
主动抑制碰摩
rotor/stator rubbing
dry friction
cross-coupling effects
active rubbing suppression
