热边界条件对径向轴承的热流体动力润滑分析的影响  

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

作　　者：张振山[1] 杨玉敏[2] 戴旭东[1] 谢友柏[1] 

机构地区：[1]上海交通大学,上海200240 [2]河北工程大学,邯郸056021

出　　处：《中国机械工程》2014年第11期1427-1432,共6页China Mechanical Engineering

基　　金：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)

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。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 con- siderable 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.

关 键 词：径向轴承 热边界条件 热流体动力润滑 JFO边界 

分 类 号：TH11[机械工程—机械设计及理论]