文章摘要
肖乾,黄碧坤,徐红霞,杨文斌.考虑弹性变形和黏压黏温效应的推力滑动轴承润滑性能有限元分析[J].润滑与密封,2014,39(1):73-79
考虑弹性变形和黏压黏温效应的推力滑动轴承润滑性能有限元分析
  
DOI:10.3969/j.issn.0254-0150.2014.01.016
中文关键词: 推力滑动轴承  弹性变形  倾斜角  油膜压力
英文关键词: thrust sliding bearing  elastic deformation  incline angle  oil film pressure
基金项目:
作者单位E-mail
肖乾 华东交通大学载运工具与装备教育部重点实验室 xqyjs@foxmail.com 
黄碧坤 华东交通大学载运工具与装备教育部重点实验室  
徐红霞 华东交通大学载运工具与装备教育部重点实验室  
杨文斌 华东交通大学载运工具与装备教育部重点实验室  
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中文摘要:
      应用COMSOLMultiphysics对考虑弹性变形和黏压黏温效应的推力滑动轴承建立有限元模型,并进行数值仿真模拟。结果表明:初始入油温度的增大使润滑油黏度迅速下降,但对油膜压力影响很小;载荷的增大使油膜压力增大明显,油膜压力峰值向出口区移动,在轴瓦上产生较大变形;转动速度的增大使油膜厚度增加,有利于产生流体动压,但摩擦功率损失很大;存在使油膜压力峰值最小,且压力分布均匀的最佳倾斜角。
英文摘要:
      Considering the elastic deformation and the viscosity and density changing with pressure and temperature,a finite element model for sliding thrust bearing was established by COMSOL Multiphysics.The numerical simulation results show that the increase of initial oil’s temperature results the rapid decrease of viscosity,but it has little impact on the oil film pressure.The increase of load makes the oil film pressure increase obviously and pressure peak value move towards the export zones,and large deformation is formed in the export zones.With the increase of rotation speed,the oil film thickness is increased,which is helpful to produce the hydrodynamic pressure,but the friction power loss is increased.There is an optimum incline angle which can make the oil film pressure peak the least and the oil film pressure distribution more uniform.
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