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

KANG ZhaoHui;REN XingMin;WANG Zhi;YANG YongFeng

Journal of Vibration and Shock ›› 2010, Vol. 29 ›› Issue (8) : 195-197.

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PDF(1076 KB)
Journal of Vibration and Shock ›› 2010, Vol. 29 ›› Issue (8) : 195-197.
论文

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

  • KANG ZhaoHui; REN XingMin; WANG Zhi; YANG YongFeng
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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.

Key words

wall friction / squeeze film / damping mechanism / Floating-ring bearing

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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
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