| 不同微细造型几何形貌对润滑性能影响的数值模拟 |
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| 引用本文： | 王霄,张广海,陈卫,刘会霞,符永宏,蔡兰.不同微细造型几何形貌对润滑性能影响的数值模拟[J].润滑与密封,2007,32(8):66-68,73. |
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| 作者姓名： | 王霄 张广海 陈卫 刘会霞 符永宏 蔡兰 |
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| 作者单位： | 江苏大学机械工程学院,江苏镇江,212013 |
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| 基金项目： | 国家自然科学基金;江苏省科技攻关计划;江苏省高校自然科学基金 |
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| 摘 要： | 建立了圆柱形、球冠形、锥形、六角形截面、三角形截面、正方形截面等表面微细造型几何形貌的数学模型,结合微细形貌润滑理论模型,采用多重网格法,分析了这些不同几何形貌对两滑动表面摩擦润滑性能的影响。分析结果表明:球冠造型形成油压的区域要明显大于圆柱和圆锥造型形成的油压区域;在相同表面占有率和微细造型深度下,正三角形造型有效油膜压力的区域较大,在相对滑动的表面中形成的间隙大,摩擦因数小。
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| 关 键 词： | 表面微细形貌 动压润滑 多重网格法 |
| 文章编号： | 0254-0150（2007）8-066-3 |
| 修稿时间： | 2007-03-13 |
Numerical Study of Different Microasperities on Hydrodynamic Lubication |
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| Wang Xiao,Zhang Guanghai,Chen Wei,Liu Huixia,Fu Yonghong,Cai Lan.Numerical Study of Different Microasperities on Hydrodynamic Lubication[J].Lubrication Engineering,2007,32(8):66-68,73. |
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| Authors: | Wang Xiao Zhang Guanghai Chen Wei Liu Huixia Fu Yonghong Cai Lan |
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| Affiliation: | School of Mechanical Engineering, Jiangsu University, Zhenjiang Jiangsu 212013, China |
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| Abstract: | A mathematical model was developed for different shapes of micro-textures on sliding surface lubrication,combined with the lubricated theoretical model.The effect of cylinder,crown,cone,hexagon,triangle,square shaped micro-asperities on hydrodynamic lubrication was analyzed by multi-grid method.The results show that the area of the pressure formed by the crown shaped micro-texturing asperities is larger than that of cylinder shaped or cone shaped;with the same area density and micro-asperity depth,the regular triangle shaped asperities form the largest area of the pressure,the largest clearance of the two sliding surfaces and the lowest friction coefficient. |
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| Keywords: | micro-texturing asperities hydrodynamic lubrication multi-grid method |
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