中国机械工程 ›› 2014, Vol. 25 ›› Issue (11): 1427-1432.

• 机械基础工程 • 上一篇    下一篇

热边界条件对径向轴承的热流体动力润滑分析的影响

张振山1;杨玉敏2;戴旭东1;谢友柏1   

  1. 1.上海交通大学,上海,200240
    2.河北工程大学,邯郸,056021
  • 出版日期:2014-06-10 发布日期:2014-06-23
  • 基金资助:
    国家自然科学基金资助项目(50935004,50705055);国家重点基础研究发展计划(973计划)资助项目(2009CB724302);机械系统与振动国家重点实验室资助项目(MSVZD201104)

Effects of Thermal Boundary Conditions on Thermohydrodynamic Lubrication Analysis of Plain Journal Bearing

Zhang Zhenshan1;Yang Yumin2;Dai Xudong1;Xie Youbai1   

  1. 1.Shanghai Jiaotong University,Shanghai,200240
    2.Hebei University of Engineering,Handan,Hebei,056021
  • Online:2014-06-10 Published:2014-06-23
  • Supported by:
    National Natural Science Foundation of China(No. 50935004,50705055);National Program on Key Basic Research Project (973 Program)(No. 2009CB724302)

摘要:

建立了径向轴承的三维热流体动力润滑模型,该模型涉及质量守恒广义Reynolds方程、三维能量方程和固体热传导方程的联立求解。在此基础上,对几个重要热边界条件的处理方式进行了深入的研究。结果表明,热边界条件的处理对径向轴承热流体动力润滑分析的结果有较大的影响,为了获得可靠的计算结果,应根据实际的操作工况合理地确定热边界条件。

关键词: 径向轴承, 热边界条件, 热流体动力润滑, JFO边界

Abstract:

A THD model of plain journal bearings was proposed herein. This model involved the synthetic solution of the generalized Reynolds equation, three-dimensional energy equation, and heat conduction equations of the solids. On the basis of that, series of results were provided to examine the effects of thermal boundary conditions. The results show the thermal boundary conditions have considerable effects on the THD analysis of plain journal bearings. Therefore, it is necessary to choose the thermal boundary conditions according to the actual operating conditions, so as to obtain reliable calculating results.

Key words: plain journal bearing, thermal boundary condition, thermohydrodynamic(THD) lubrication, Jakobsson Floberg Olsson(JFO) boundary

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