Thermo-hydrodynamic analysis of herringbone grooved journal bearings

被引：25

作者：

Sahu, M. ^{[1
]}

Sarangi, M. ^{[1
]}

Majumdar, B. C. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Mech Engn, Kharagpur 721302, W Bengal, India

来源：

TRIBOLOGY INTERNATIONAL | 2006年 / 39卷 / 11期

关键词：

herringbone grooved journal bearing; stability analysis; thermal effect;

D O I：

10.1016/j.triboint.2005.11.022

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Steady-state and stability characteristics of herringbone grooved journal bearings (HGJBs) are found considering thermal effect. The temperature of the fluid film rises significantly due to the frictional heat, thereby the viscosity of the fluid and the load carrying capacity decrease. A thermodynamic analysis requires the simultaneous solution of Reynolds equation along with energy equation of the fluid and heat conduction equations in the bush and the shaft. The linearized first-order perturbation technique is employed for the prediction of stiffness and damping coefficients of the oil film. Thereafter mass parameter and whirl ratio are found from the stability analysis. It is difficult to obtain the solution due to the numerical instability when the bearing is operated at high eccentricity ratios. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1395 / 1404

页数：10