Strategic Study of CAE >> 2001, Volume 3, Issue 10
Correcting Model of Viscosity with Exponential Function Derived and Its Application
Shandong Institute of Technology, Zibo, Shandong 255012, China
Next Previous
Abstract
Based on adsorbent theory and the law of energy change, the degree of interaction on the surface is determined. The adsorbent layer is defined. Analysis calculation formula on the thickness of adsorbent layer is obtained. The thickness of adsorbent layer is the most critical factor for thin film lubrication research, and is a critical point to the difference between thin film and thick film analyzed. According to the theory of interaction of molecules and basic definition of hydromechanics, correcting model of viscosity with exponential function is derived. It can be used to determine the law of change of fluid viscosity in micro-clearance, and thus the rationale is provided for theoretic model of thin film lubrication established.
Keywords
adsorbent layer ; viscosity ; thin film lubrication ; bearing
References
[ 1 ] 孙大成.润滑力学讲义[M ].北京:中国友谊出版公司, 1991 link1
[ 2 ] BairS , WinerWO .Thehighshearstressrheologyofliquidlubricantsatpressuresof2to200Mpa[J].ASMEJTrib, 1990, 112 (2) :246
[ 3 ] HussainA .Anewviscosity temperaturerelationshipforliquidlubricant[J].TribTrans, 1992, 156 (1) :1~18
[ 4 ] 曲庆文, 朱均.粘度修正雷诺方程的全域解模拟计算[J].机械工程学报, 1997, 33 (4) :26~30 link1
[ 5 ] 曲庆文, 朱均.薄膜润滑的等效粘度模拟计算[J].机械科学与技术, 1996, 15:883~886 link1
[ 6 ] 曲庆文, 李小江, 朱均.粘度修正雷诺方程模拟计算超薄膜润滑径向轴承[J].润滑与密封, 1997, 3:18~20 link1
[ 7 ] TichyJA .Asurfacelayermodeforthinfilmlubrication[J].TriboTrans, 1995, 33 (3) :577~582
[ 8 ] 曲庆文, 胡亚红, 朱均.薄膜润滑分层模型[J].机械工程学报, 1998, 34 (6) :5~10 link1
[ 9 ] QuQingwen, HuYahong, ZhuJun.Anadsorbentlay ermodelforthinfilmlubrication[J].Wear, 1998, 221:9~14
[10] TichyJA .Modelingofthinfilmlubrication[J].ASMEJTribo, 1995, 38:108~111
[11] 曲庆文, 朱均.流体吸附层厚度及位能界面的划分[J].机械科学与技术, 1998, 17 (6) :895~897 link1
[12] 曲庆文, 朱均.薄膜润滑状态下流体的流动特性分析[J].机械科学与技术, 1998, 17 (2) :203~205 link1