表面凹痕织构动压承载性能的CFD分析  

CFD Analysis on Hydrodynamic Bearing Capacity of Surface Groove Texture

作　　者：张文谦[1] 朱华[1] 马晨波[2] 周元凯[1] 唐玮[1] 

机构地区：[1]中国矿业大学机电工程学院江苏徐州221116 [2]南京林业大学机械电子工程学院江苏南京210037

出　　处：《润滑与密封》2011年第9期59-62,67,共5页Lubrication Engineering

基　　金：国家自然科学基金项目(50975276);国家“973计划”课题(2007CB607605);高等学校博士学科点专项科研基金项目(200802900513);中国矿业大学青年科技基金项目(2010QNA24)

摘　　要：为研究表面凹痕织构的动压承载性能,在建立其几何模型的基础上,采用基于N-S方程的CFD方法研究不同参数下表面凹痕织构的平均承载力变化规律,并考察雷诺数、织构宽度和深度对动压承载性能的影响。结果表明:雷诺数的增加能够大幅提升表面凹痕织构的平均承载力;随着织构宽度的增加,表面凹痕织构的动压承载性能趋于优良;当量纲一织构深度处于0.5～1时,表面凹痕织构具有最佳的动压承载性能。The geometrical model of surface groove texture was developed and the hydrodynamic bearing capacity of surface groove texture with different parameters was studied by the way of CFD based on N-S equation. The influence of Reynolds number,the width and depth of surface groove texture on hydrodynamic bearing capacity was analyzed. The results show that the hydrodynamic bearing capacity of surface groove texture enhances greatly as the increase of Reynolds num- ber;the hydrodynamic bearing capacity of surface groove texture gets better as the increase of width;there is a optimum depth range between 0. 5 to 1 where the hydrodynamic bearing capacity is the best.

关 键 词：表面凹痕织构 动压承载性能 CFD 平均承载力 

分 类 号：TH117.1[机械工程—机械设计及理论]