Ananlysis of double oil grooved round slide bearing performance with disturbance

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Journal of Vibration and Shock ›› 2012, Vol. 31 ›› Issue (5) : 46-49,5.

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Ananlysis of double oil grooved round slide bearing performance with disturbance

YU Gui-chang1,LIU Shu-lian2,ZHENG Shui-ying1

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Abstract

The pressure distribution of oil film and the scale and position of cavitation zone were obtained exactly with FLUENT cavitation model,and compared with results of other boundary conditions; effects of oil inlet pressure were discussed; the influence of journal moving velocity on flow patterns and oil film pressure were carried out an unsteady calculation with improved dynamic mesh. The results show that: the fluence of oil inlet pressure is larger; the pressure of oil film changes greatly because of the influence of journal moving velocity; the force of oil film varies nonlinearly with journal moving velocity; the dynamic performance of bearing could be analyzed better with dynamic mesh. It provides the basis to analyse the nonlinear property of rotor-bearing with the big disturbance and the theoretical basis for the design of sliding bearing.

Key words

Cavitation / FLUENT / double oil grooved round bearing / dynamic mesh / oil inlet pressure / journal moving velocity

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YU Gui-chang;LIU Shu-lian;ZHENG Shui-ying. Ananlysis of double oil grooved round slide bearing performance with disturbance[J]. Journal of Vibration and Shock, 2012, 31(5): 46-49,5