层流、紊流共存时雷利阶梯轴承静特性分析

中国机械工程 ›› 2013, Vol. 24 ›› Issue (19): 2584-2587,2591.

层流、紊流共存时雷利阶梯轴承静特性分析

王迎佳;董其伍];郭红;岑少起

郑州大学,郑州,450002

出版日期:2013-10-10 发布日期:2013-10-11
基金资助:
国家自然科学基金资助项目(51075373);河南省教育厅自然科学研究计划资助项目(2011A460011)
National Natural Science Foundation of China（No. 51075373）;
Henan Provincial Natural Science Program of Ministry of Education of China（No. 2011A460011）

Analysis on Static Characteristics of Rayleigh Step Bearing under Coexistence State of Fluid with Laminar Flow and Turbulence

Wang Yingjia;Dong Qiwu;Guo Hong;Cen Shaoqi

Zhengzhou University,Zhengzhou,450002

Online:2013-10-10 Published:2013-10-11
Supported by:

National Natural Science Foundation of China（No. 51075373）;
Henan Provincial Natural Science Program of Ministry of Education of China（No. 2011A460011）

摘要/Abstract

摘要：

以具有深浅腔的高速阶梯轴承为研究对象，在考虑油膜中同时存在层流、紊流两种流态以及轴承两端存在不同静压力的条件下,采用连续性方程推导了油膜深浅腔的压力分布，进而求出轴承上的压力分布、承载力和摩擦力等静态特性参数。研究结果表明，油腔最优结构参数随深腔紊流因子和轴承两端静压力的不同而变化。将特定条件下混合流态时油膜静态特性结果与单一层流流态时的结果进行了比较。

关键词: 雷利阶梯轴承, 层流, 紊流, 共存

Abstract:

This paper mainly discussed the high-speed step bearing with shallow
and deep cavities on the inner surface of the bearing.With considering the coexistence
state and different hydrostatic pressure between bearing endings,the pressure distribution
was calculated first using the continuity equations and the static characteristics in the
whole flow domain such as pressure distribution,load-carrying capacity,friction force and
friction coefficient were analyzed.It is shown that the optimum bearing parameters are
dependent on the turbulence factor of deep cavity and the variations of the
pressure at the boundaries.Finally,under certain conditions associated conclusions are
drawn by comparison between results under the coexistence state and under the laminar state.

Key words: Rayleigh step bearing, laminar flow, turbulence, coexist

中图分类号:

TH117
TH133

王迎佳;董其伍];郭红;岑少起. 层流、紊流共存时雷利阶梯轴承静特性分析[J]. 中国机械工程, 2013, 24(19): 2584-2587,2591.

Wang Yingjia;Dong Qiwu;Guo Hong;Cen Shaoqi. Analysis on Static Characteristics of Rayleigh Step Bearing under Coexistence State of Fluid with Laminar Flow and Turbulence[J]. China Mechanical Engineering, 2013, 24(19): 2584-2587,2591.