| 供油量对点接触表面微织构润滑性能的影响 |
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| 引用本文： | 李珊珊,王文中,孔凌嘉.供油量对点接触表面微织构润滑性能的影响[J].摩擦学学报,2012,32(5):444-451. |
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| 作者姓名： | 李珊珊 王文中 孔凌嘉 |
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| 作者单位： | 北京理工大学机械与车辆学院,北京,100081 |
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| 基金项目： | The project was supported by the National Natural Science Foundation of China (50975029) and the National Key Basic Research Program of China (973) (2011CB706602) and Program for New Century Excellent Talents in University. 国家自然科学基金(50975029)、国家重点基础研究发展规划项目(973) (2011CB706602)和新世纪优秀人才支持计划资助. |
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| 摘 要： | 采用球盘接触模型,以入口油层厚度为输入变量,基于统一Reynolds方程法建立润滑分析模型,研究了供油量对点接触表面微织构润滑性能的影响.数值计算结果显示:供油量显著影响接触区油膜厚度;微织构能改善摩擦副的润滑摩擦性能;严重乏油时接触区内微坑会产生气穴现象;瞬态下,微织构在乏油时较充分供油时改善润滑的效果明显.
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| 关 键 词： | 供油量 点接触 微织构 润滑性能 乏油 |
Effects of Oil Feeding on Lubrication Performance in Point Contacts of Micro-textured Surfaces |
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| LI Shan-shan,WANG Wen-zhong and KONG Ling-jia.Effects of Oil Feeding on Lubrication Performance in Point Contacts of Micro-textured Surfaces[J].Tribology,2012,32(5):444-451. |
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| Authors: | LI Shan-shan WANG Wen-zhong and KONG Ling-jia |
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| Institution: | School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing 100081, China;School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing 100081, China;School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | Based on ball-disc contact model, taking the thickness of the inlet oil-supply layer as an input parameter, the influences of quantity of the supplied oil on lubrication performance in point contacts of micro-textured surfaces are investigated based on the unified Reynolds equation approach. The simulation results show that quantity of the supplied oil has a great effect on the film thickness in the contact area. Micro-texture could improve lubrication performance of tribo-pairs. Local cavitation occurs in the pits when the degree of the starvation is very serious. In transition state, the effect of the micro-textures on improving lubrication is more obvious in starved condition than in fully-flooded condition. |
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| Keywords: | oil feeding point contacts micro texture lubrication performance starvation |
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