齿轮联轴器不对中转子系统的稳态振动特征分析  

ANALYSIS ON THE STEADY STATE VIBRATION PROPERTIES OF ROTOR SYSTEMS CONNECTED WITH MISALIGNED GEAR COUPLING

作　　者：李明[1] 

机构地区：[1]西安科技学院基础部,西安710054

出　　处：《机械强度》2002年第1期52-55,65,共5页Journal of Mechanical Strength

基　　金：陕西省教委专项科研基金项目 (0 0JK2 0 4 )。~~

摘　　要：对不对中齿轮联轴器连接的轴承—转子系统进行了动力学分析 ,讨论了齿轮联轴器不对中力的组成。理论分析表明 ,齿轮联轴器的不对中而产生的作用力是联轴器内齿套的惯性力和联轴器内阻尼共同作用的结果 ,转子系统的稳态响应振幅与齿轮联轴器的不对中量、内阻尼、转子的转速和齿轮联轴器的结构参数有关。数值模拟结果显示在弯曲振动中转子系统会产生工频的 2 ,4,6,8,…等偶数倍频分量 ,而在扭转振动中会产生工频的 1,3 ,5 ,7,…等奇数倍频分量 。In the rotor system connected with a gear coupling, misalignment is a commonly mechanical fault that can cause excessive vibration. In this work, the dynamics of bearing rotor system connected with a misaligned gear coupling and the dynamic forces generated by the coupling due to the misalignment are analyzed. The theoretical analysis shows the misalignment forces are from the inertia force of the sleeve and the internal damping between the teeth. The amplitudes of the steady state vibration of the system are related to the misalignment, internal damping, the rotating speed, and the structural parameters of the coupling. Numerical analysis reveals that the even integer multiples of lateral vibration and the odd integer multiples of torsional vibration are occurred in the misaligned system, and the integer multiples of vibration are apparent around the gear coupling.

关 键 词：转子系统 齿轮联轴器 不对中 振动特征 动力学 

分 类 号：TH133.4[机械工程—机械制造及自动化] TH113