摘要
本文讨论了具有内外阻尼的高速充液转子的动力稳定性。首先通过对旋转流体的平面流场的求解，导出充液转子作简谐运动时流体对转子的动压力，由此导出转子的运动方程；讨论了充液转子的动力稳定性，给出了稳定性解析判据和稳定性边界。结果表明，存在转速门槛值，低于该转速时，充液转子可存在稳定区；当高于该转速时，系统永远失稳，这一结论复盖了已有文献的结果。
The dynamic stability of a high-spinning liquidfilled rotor is investigated in this paper with bothinner and outer damping effects involved in. First, in the case of the rotor subjected to a harmonicmotion,the dynamic pressure of the liquid acting on the rotor is extracted through a planar flow anal-ysis of the rotating liquid.Then the equation of whirl motion for the liquidfilled rotor is derived.Theanalytical criterion for stability as well as the stability boundary are given.A threshold value of rotat-ing speed is obtained. If the rotating speed is lower than the threshold value,the system is stable,oth-erwise it will be unstable.The results can be regarded as the generalization of previous conclusions.
出处
《应用力学学报》
CAS
CSCD
北大核心
1995年第2期1-8,共8页
Chinese Journal of Applied Mechanics
基金
振兴中华教育基金
关键词
充液转子
阻尼
稳定性
工程流体力学
转子
liquid-filled rotor,inner damping,outer damping,dynamic stability.
