可倾瓦轴承的油膜力模型及其特性分析  

Oil Film Force Model of Tilting Pad Bearing and Its Characteristic Analysis

作　　者：刘兴星[1] 孟再强[1] 李明[1] 李鸿光[1] 孟光[1] 

机构地区：[1]上海交通大学机械系统与振动国家重点实验室,上海200240

出　　处：《噪声与振动控制》2013年第4期59-63,共5页Noise and Vibration Control

基　　金：国家重点基础研究发展973计划项目(2011CB706502)

摘　　要：提出一种可倾瓦径向滑动轴承的油膜力模型以及可倾瓦瓦块的摆动方程,并使用该模型分析可倾瓦轴承的预载荷,包角,瓦块摆角等对油膜力的影响;分析可倾瓦轴承油膜力和普通轴承油膜力的区别。运用Runge-Kutta等方法将可倾瓦轴承油膜力模型应用于Jeffcott转子,分析轴承瓦块摆角的特性。分析结果表明模型的高效性和可倾瓦轴承的特性。A method to model the oil film force of tilting pad bearing and the torque of the pads was proposed.Influence of the pre-load,the covering angle and the swinging angle of the pad on the oil film force was analyzed with this model.The difference between the oil film forces of the ordinary sliding bearing and the tilting pad bearing was analyzed.Finally,the vibration characteristic of the tilting pad was studied by applying the model to the Jeffcott rotor with the use of the Runge– Kutta method.The result shows that this model is effective for analyzing the characteristic of the tilting pad bearing.

关 键 词：TB53 振动与波 可倾瓦轴承 油膜力 REYNOLDS方程 

分 类 号：TB53[理学—物理] TK263.6[理学—声学]