Non-Newtonian effects on porous elastic journal bearings

被引：15
|
作者：
Sakim, Anas [1 ]
Nabhani, Mohamed [1 ]
El Khlifi, Mohamed [1 ]
机构：
[1] Univ Hassan II Casablanca, Fac Sci & Tech, POB 146, Mohammadia 20650, Morocco
来源：
TRIBOLOGY INTERNATIONAL | 2018年 / 120卷
关键词：
Non-Newtonian lubricants; Finite journal bearings; Beavers-Joseph velocity conditions; Porous elastic bearings; MICROCONTINUUM FLUID-MECHANICS; EXTENDED DARCY MODEL; COUPLE STRESS FLUID; HYDRODYNAMIC LUBRICATION; PERFORMANCE; ROUGHNESS; SURFACE; SLIP;
D O I：
10.1016/j.triboint.2017.12.018
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This work investigates numerically couple stresses influence on finite porous elastic journal bearings performance. Using the micro-continuum theory of Stokes, the Reynolds equation, considering bearing elastic deformation and Beaver-Joseph velocity conditions at the film-porous interface, is derived. The porous flow is modeled using Darcy's law. The resulting equations are sequentially resolved by fixed-point iteration method. The numerical results of this work demonstrated particularly that couple stresses increase load capacity and decrease friction factor, while the bearing permeability and deformation result in the reverse trends.
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页码：23 / 33
页数：11
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