基于有限元的塑料瓦推力轴承油膜特性分析  

Characteristic Analysis of Oil Film in Thrust Bearing with Plastic Pad Based on Finite Element Method

作　　者：何锫 陈铁华[1] 赵冉 邹颜泽 HE Pei(School of Energy&:Power Engineering,Changchun Institute of Technology,Changchun 130012,China)

机构地区：[1]长春工程学院能源动力工程学院,长春130012 [2]河北丰宁抽水蓄能有限公司,河北承德068350 [3]辽宁清原抽水蓄能有限公司,辽宁抚顺113399

出　　处：《长春工程学院学报（自然科学版）》2021年第4期57-61,共5页Journal of Changchun Institute of Technology：Natural Sciences Edition

摘　　要：应用COMSOL Multiphysics对塑料瓦推力轴承建立有限元三维模型,在塑料瓦表面求解雷诺方程,得到塑料瓦表面的压力分布,以确定其弹性变形量,用于塑料瓦推力轴承油膜的特性分析。分析结果表明,载荷增大时油膜压力明显增大,并且油膜压力最大值向推力瓦出油区一侧移动,在推力瓦上产生较大变形;转速增加有利于形成流体动压润滑;倾斜角度在一定范围内增大时,油膜压力先减小后显著增大,存在一个最佳倾斜角,可以使油膜压力分布均匀。By COMSOL Multiphysicsa three-dimensional finite element model of thrust bearing with plastic pad is established.The Reynolds equation is solved on the surface of the plastic padand the pressure distribution on the surface of the plastic pad is obtained to determine its elastic deformationwhich is used to analyze the oil film characteristics in thrust bearing with plastic pad.The analysis results showed that the oil film pressure obviously increased with the increase of the loadand the maximum oil film pressure moved towards the oil output region of the thrust padresulting in a large deformation on the thrust pad.The increase of rotational speed is beneficial to the formation of hydrodynamic lubrication.When the tilt angle increases within a certain rangethe oil film pressure decreases first and then increases significantly.And there is an optimal inclination Angle which allows the oil film pressure to be evenly distributed.

关 键 词：塑料瓦推力轴承 弹性变形 油膜压力 油膜厚度 有限元分析 

分 类 号：TK72[动力工程及工程热物理—流体机械及工程]