Improvement in dynamic characteristics of circular journal bearings by means of longitudinal microgrooves

被引：12

作者：

Kato, T ^{[1
]}

Obara, S ^{[1
]}

机构：

[1] NATL AEROSP LAB,TOKYO 182,JAPAN

来源：

TRIBOLOGY TRANSACTIONS | 1996年 / 39卷 / 02期

关键词：

hydrodynamic bearings; surface roughness;

D O I：

10.1080/10402009608983553

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Longitudinal microgrooves were assumed on the circular journal bearings and static and dynamic characteristics were Investigated by solving the modified Reynolds equation for a rough bearing surface. It was found that the dynamic characteristics of the journal bearings were improved by longitudinal microgrooves or truncated microgrooves on the bearing surface while the static characteristics, such as load-carrying capacity and friction coefficients, were not changed by the microgrooves. Calculations regarding the linear stability of a symmetrical rotor supported by two journal bearings were also carried out and it was found that the stable region was expanded on the stability chart by microgrooves.

引用

页码：462 / 468

页数：7

共 15 条

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