浮环轴承系统中浮动环涡动运动研究

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振动与冲击 ›› 2010, Vol. 29 ›› Issue (8) : 195-197.

论文

浮环轴承系统中浮动环涡动运动研究

康召辉; 任兴民 ; 王鸷; 杨永锋

作者信息 +

STUDY ON WHIRLING MOTION OF FLOATING-RING IN FLOATING-RING BEARING SYSTEM

KANG ZhaoHui; REN XingMin; WANG Zhi; YANG YongFeng

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文章历史 +

摘要

研究了浮环轴承中内、外层不平衡油膜力作用下浮动环的运动情况。从广义不可压Reynolds方程出发，推导了浮环轴承内外层油膜的瞬态控制方程，结合Hirs整体流动理论和Moody壁面摩擦系数方程，获取浮动环的运动方程，通过算例，较为深入地研究了浮环轴承系统中浮动环的涡动特性：浮动环质心稳定状况下运动轨迹呈椭圆形分布，且幅值随轴颈偏心率增大而增略呈减小趋势。

Abstract

Considering the unbalance oil pressure between the outer squeeze film and inner squeeze film., the whirling motion of the floating-ring was studied. Based on Hirs bulk flow theory , Moody friction factor equation and generalized incompressible Reynolds equation, the transient governing equations for the inner and outer squeeze film and the equation motion of floating-ring were set up. With the help a numerical example, the whirling motion characters of the floating ring were discussed. The results show that the mass center curve of the floating ring is in elliptical from distributed and the prcession radius decreases as the eccentricity of the rotor increases.

导出引用

康召辉; 任兴民; 王鸷; 杨永锋. 浮环轴承系统中浮动环涡动运动研究[J]. 振动与冲击, 2010, 29(8): 195-197

KANG ZhaoHui;REN XingMin;WANG Zhi;YANG YongFeng. STUDY ON WHIRLING MOTION OF FLOATING-RING IN FLOATING-RING BEARING SYSTEM[J]. Journal of Vibration and Shock, 2010, 29(8): 195-197