文档介绍：润滑与密封
2012 年 10 月 Oct. 2012
第 37 卷第 10 期 LUBRICATION ENGINEERING Vol. 37 No. 10

DOI 10. 3969 /j. issn. 0254 - 0150. 2012. 10. 011
动压滑动轴承油膜不同流态时的油膜力场研究
胡灿薛俊谢斌

广西大学机械工程学院广西南宁 530004
檿
檿,
摘要为了研究高转速滑动轴承的油膜压力场利用计算流体动力学软件 FLUENT 建立动压滑动轴承的油膜流场
檿
檿模型,计算油膜处于层流和湍流状态时的油膜压力分布,比较相同转速条件下轴颈随油膜涡动时的轴承承载能力变化
。檿
檿, , ,
结果表明在相同参数条件下油膜处于湍流状态下的承载能力大于层流状态模拟结果与前人理论研究一致证明檿
檿
对动压滑动轴承油膜压力分布模拟有效轴颈随油膜涡动时,轴承承载能力降低,轴承端部泄油量减小,转轴檿
檿 FLUENT
涡动是影响轴承稳定性的主要原因檿
檿。
檿
檿关键词滑动轴承油膜力承载能力

中图分类号 TH133. 2 文献标识码 A 文章编号 0254 - 0150 2012 10 - 050 - 4
Research on Film Force of Hydrodynamic Bearing in
Different Oil-film Flow State
Hu Can Xue Jun Xie Bin
, , ,
College of Mechanical Engineering Guangxi University Nanning Guangxi 530004 China
,
Abstract To study the oil-film pressure field of high speed bearing oil-film flow field model of hydrodynamic bearings
was established by CFD software FLUENT. The pressure distribution of oil-film in laminar flow and turbulent flow state was
calculated. The carrying capacity pared when journal whirling with oil - film at the same speed. The results show
,
that the carrying capacity of oil-film in turbulence state is bigger than that in laminar flow state at the same condition this
,
simulated result is consistent with previous theoretical studies which proves to be effective to simulate oil-film pressure
field