扰动情况下双油槽圆形轴瓦滑动轴承性能分析

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (5) : 46-49,5.

论文

扰动情况下双油槽圆形轴瓦滑动轴承性能分析

于桂昌1，刘淑莲2，郑水英1

作者信息 +

Ananlysis of double oil grooved round slide bearing performance with disturbance

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

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文章历史 +

摘要

采用FLUENT软件及其提供的气穴模型，计算了双油槽圆形轴瓦滑动轴承的油膜压力分布及气穴存在区域大小和位置，并同其他边界条件进行了对比；讨论了进油压力对轴承的流场和承载能力的影响；利用自行改进的动网格技术对轴颈扰动速度对流场和油膜力的影响进行了非稳态计算。计算结果表明，进油压力对油膜力的影响较大，油膜压力受轴颈扰动速度的影响很大，油膜力与轴颈扰动速度明显呈非线性关系，利用改进的动网格技术可以很好地对轴承的动特性进行分析。论文为今后大扰动条件下转子-轴承系统的非线性动特性分析打下了基础，为滑动轴承的设计提供了一种理论参考依据

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.

导出引用

于桂昌;刘淑莲;郑水英. 扰动情况下双油槽圆形轴瓦滑动轴承性能分析[J]. 振动与冲击, 2012, 31(5): 46-49,5

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