Numerical study of the thermo-hydrodynamic lubrication phenomena in porous journal bearings

被引：32

作者：

Boubendir, S. ^{[1
,2
]}

Larbi, S. ^{[1
]}

Bennacer, R. ^{[2
]}

机构：

[1] Polytech Natl Sch Algiers, Dept Mech Engn, LGMD, Algiers, Algeria

[2] ENS Cachan, LMT, F-94235 Cachan, France

来源：

TRIBOLOGY INTERNATIONAL | 2011年 / 44卷 / 01期

关键词：

Numerical simulation; Thermo hydrodynamic lubrication; Self lubricating journal bearing; STEADY-STATE; BRINKMAN MODEL; PERFORMANCE; CONVECTION; PRESSURE; GROOVE;

D O I：

10.1016/j.triboint.2010.09.008

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this work a numerical simulation is presented for the thermo-hydrodynamic self-lubrication aspect analysis of porous circular journal beanng of finite length with sealed ends It consists in analyzing the thermal effects on the behavior of circular porous journal bearings The Reynolds equation of thin viscous films is used taking into account the oil leakage into the porous matrix by applying Darcy s law to determine the fluid flow in the porous media The presented results are in good agreement with those cited in the literature The effects of dimensionless permeability parameter and eccentricity ratio on performance parameters are presented and discussed The results showed that the temperature influence on the journal bearings performance is important in some operating cases and that a progressive reduction in the pressure distribution in the load capacity and attitude angle is a consequence of the increasing permeability (C) 2010 Elsevier Ltd All rights reserved

引用

页码：1 / 8

页数：8

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