花键连接转子系统稳定性研究  

Stability Analysis of Spline Connected Rotor System

作　　者：高腾[1] 荆建平[1] 梅庆[2] 陈全勇[2] 

机构地区：[1]上海交通大学机械与动力工程学院振动、冲击、噪声研究所,上海200240 [2]中国航空动力机械研究所,湖南株洲412002

出　　处：《噪声与振动控制》2016年第2期40-45,共6页Noise and Vibration Control

摘　　要：花键联轴器被广泛应用于飞机上,在涡轮端和输出组件、发电机以及发动机其他配件间传递动力。为获得花键联轴器引起的花键连接转子失稳原理,将花键力模拟成等效的刚度系数和阻尼系数,采用有限元方法建立花键连接转子模型,采用特征值方法得到花键力对花键连接转子系统稳定性影响,此外,讨论摩擦系数、负载扭矩和外阻尼对系统稳定性的影响。研究结果表明,摩擦系数和负载扭矩增加会降低系统稳定性,相反,外阻尼会增加花键连接转子系统稳定性。Involute spline couplings are widely used in aircrafts to transmit power from turbine end to the output components, generators or other engine accessories. This study is to obtain the instability principle of spline connected rotor systems. The spline force was described as equivalent stiffness coefficients and damping coefficients. The model of spline connected rotor system was established with finite element method. The effect of the spline force on the stability of the rotor system was obtained with eigenvalue method. In addition, the impact of the friction coefficient, torque load and external damping on the system stability were discussed. The results show that the increase of friction coefficient and torque load can decrease the stability of the rotor system. In the contrary, the external damping can increase the stability of the spline connected rotor system.

关 键 词：振动与波 转子动力学 花键联轴器 特征值法 稳定性 

分 类 号：O422.6[理学—声学]