| 含气率对油气润滑性能的影响 |
| |
| 引用本文： | 王建文,安琦.含气率对油气润滑性能的影响[J].医学教育探索,2009(6):932-935. |
| |
| 作者姓名： | 王建文 安琦 |
| |
| 作者单位： | 华东理工大学机械与动力工程学院，承压系统安全科学教育部重点实验室;华东理工大学机械与动力工程学院，承压系统安全科学教育部重点实验室 |
| |
| 摘 要： | 根据弹性流体动压润滑理论，对油气润滑滚动轴承问题进行了数值模拟研究，详细探讨了润滑油中混入气体后对滚动轴承油膜形状、承载区压力、量纲一摩擦力、量纲一承载力等性能的影响。研究表明：在同等条件下，油气润滑能增加滚动轴承的油膜厚度、增大承载油膜范围、使量纲一摩擦力降低25.8%，量纲一承载力提高2%。揭示了油气润滑性能优于传统油润滑性的内在原因。
|
| 关 键 词： | 滚动轴承 油气润滑 润滑机理 含气率 数值模拟 |
| 收稿时间： | 9/1/2008 12:00:00 AM |
Effects of Void Fraction on Lubricating Properties of Oil-Air Lubrication |
| |
| Abstract: | The effects of void fraction of lubricating oil on lubricating properties, such as film thickness, pressure, non-dimensional fraction force and non dimensional bearing force, of oil-air lubrication are studied by numerical simulation method based on the theory of elastohydrodynamic lubrication. The results show that oil-air lubrication can increase the oil film thickness and expand film pressure area, the loading capacity is improved by 2%, and the friction force is decreased by 25.8%. Compared with traditional oil lubrication under the same operating conditions, the intrinsic reasons that oil-air-lubrication has advantages over traditional oil lubrication are revealed. |
| |
| Keywords: | rolling bearings oil-air lubrication lubricating mechanism void fraction numerical simulation |
|
| 点击此处可从《医学教育探索》浏览原始摘要信息 |
| 点击此处可从《医学教育探索》下载免费的PDF全文 |
