| 短径向轴承的脂润滑控制方程式 |
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| 引用本文： | 闻欣荣,孔建益. 短径向轴承的脂润滑控制方程式[J]. 润滑与密封, 2006, 0(11): 111-113,156 |
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| 作者姓名： | 闻欣荣 孔建益 |
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| 作者单位： | 武汉科技大学机械自动化学院,湖北武汉,430081;武汉科技大学机械自动化学院,湖北武汉,430081 |
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| 摘 要： | 润滑油中常常包含有稠化剂等添加物，从而使润滑油表现为塑性润滑剂，因此发展脂润滑理论是需要的。为研究短径向轴承脂润滑特性，基于Ostwald模型推导了短径向轴承的脂润滑控制方程式。为了检查建立方程式的可靠性，置流变指数n=1，所得结果与牛顿流体的相应控制方程完全一致。可以用所建立的新方程分析脂膜的压强分布规律，并且能为短径向轴承脂润滑设计计算提供了理论基础。
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| 关 键 词： | 脂润滑 短径向轴承 控制方程式 Ostwald模型 |
| 文章编号： | 0254-0150（2006）11-111-3 |
| 收稿时间： | 2006-01-19 |
| 修稿时间： | 2006-01-19 |
A Governing Equation of the Short Journal Bearing in a Grease Lubricant |
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| Wen Xinrong,Kong Jianyi. A Governing Equation of the Short Journal Bearing in a Grease Lubricant[J]. Lubrication Engineering, 2006, 0(11): 111-113,156 |
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| Authors: | Wen Xinrong Kong Jianyi |
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| Affiliation: | School of Machine Automation, Wuhan University of Science and Technology, Wuhan Hubei 430081, China |
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| Abstract: | Lubrication-oils often contain additives of thickening agent to make them Denave m a plasticity lubricant,so that an extension of grease-lubrication theory is needed. To study the property of the short journal bearing in a grease lubricant, a governing equation based on the Ostwald model was derived. The reliability of equation established was checked by setting the theology index n = 1, the result shows a close agreement with the corresponding governing equation of Newtonian fluids. The new equation established can be used to analyze the pressure distribution of grease film and to provide a theoretical base of grease-lubrication design for short journal bearings. |
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| Keywords: | grease lubrication short journal bearing governing equation Ostwald model |
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