| 周期间歇卷吸条件下弹流油膜的实验 |
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| 引用本文： | 姜培刚,陈建军,耿美香,郭峰.周期间歇卷吸条件下弹流油膜的实验[J].航空动力学报,2009,24(3):690-697. |
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| 作者姓名： | 姜培刚 陈建军 耿美香 郭峰 |
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| 作者单位： | 1. 西安电子科技大学机电工程学院,西安,710071
2. 青岛理工大学机械工程学院,青岛,266033 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 应用光干涉方法对周期间歇卷吸条件下的弹流油膜进行了测量,结果显示了三种不同的局部油膜凹陷.第一种油膜凹陷产生于固体表面周期性的运动和停止,纯滚动的凹陷封油量大于纯滑动的封油量.第二种凹陷产生于启动过程的速度振荡瞬时峰值,该类局部凹陷以卷吸速度通过赫兹接触区.纯滑动条件下,界而滑移作用产生第三种凹陷,该凹陷位于入口附近,与表面速度和运动时间有关.实验中观察到的现象可由油膜的挤压效应,卷吸效应和界面滑移效应进行解释.
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| 关 键 词： | 弹性流体动力润滑 动态润滑膜 间歇卷吸 光干涉 凹陷油膜 |
| 收稿时间： | 7/3/2008 12:00:00 AM |
| 修稿时间： | 1/4/2009 12:00:00 AM |
Experimental study of elastohydrodynamic lubrication films under cyclic intermittent entrainment |
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| JIANG Pei-gang,CHEN Jian-jun,GENG Mei-xiang and GUO Feng.Experimental study of elastohydrodynamic lubrication films under cyclic intermittent entrainment[J].Journal of Aerospace Power,2009,24(3):690-697. |
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| Authors: | JIANG Pei-gang CHEN Jian-jun GENG Mei-xiang and GUO Feng |
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| Institution: | 1.School of Mechano-Electronic Engineering;Xidian University;Xi'an 710071;China;2.School of Mechanical Engineering;Qingdao Technological University;Qingdao 266033;China |
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| Abstract: | Elastohydrodynamic lubrication(EHL) films were measured by interferometry under conditions of cyclic intermittent lubricant entrainment,and three types of local film dimples were indentified.The first dimple is generated from intermittent stops of the bounding surfaces,and the pure rolling produces larger oil entrapment than pure sliding.The second film dimple is generated by the velocity oscillation in the start-up process,and the resultant crescent-shaped dimple moves through the Hertzian contact region a... |
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| Keywords: | elastohydrodynamic lubrication transient lubricating film intermittent entrainment interferometry dimple film |
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