| 剪切稀化对空间液体润滑剂弹流油膜厚度影响的研究 |
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| 引用本文： | 刘剑平,张新义,于春战.剪切稀化对空间液体润滑剂弹流油膜厚度影响的研究[J].润滑与密封,2011,36(10). |
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| 作者姓名： | 刘剑平 张新义 于春战 |
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| 作者单位： | 1. 北京邮电大学,北京,100876;山东理工大学,山东,淄博,255049
2. 山东理工大学,山东,淄博,255049 |
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| 摘 要： | 基于Carreau剪切稀化流变模型,对空间用液体润滑剂的弹流润滑油膜厚度进行理论分析,将计算结果与牛顿模型、Ree-Eyring流变模型和实测数据进行对比,结果表明:在相同工况下不同种类的空间液体润滑剂剪切稀化流变特性不同,给出判断润滑剂发生剪切稀化条件;Carreau剪切稀化流变模V比Ree-Eyring剪切稀化流变模型更能反映实际工况;基于Carreau剪切稀化流变模型,得到空间用剪切稀化润滑剂的弹流油膜厚度修正系数公式.
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| 关 键 词： | 空间液体润滑剂 Carreau剪切稀化流变掉型 弹流油膜厚度 膜厚修正系数公式 |
Effect of Shear-thinning on Elastohydrodynamic Film Thickness for Space Lubricants |
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| Liu Jianping,Zhang Xinyi,Yu Chunzhan.Effect of Shear-thinning on Elastohydrodynamic Film Thickness for Space Lubricants[J].Lubrication Engineering,2011,36(10). |
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| Authors: | Liu Jianping Zhang Xinyi Yu Chunzhan |
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| Affiliation: | Liu Jianping1,2 Zhang Xinyi2 Yu Chunzhan1,2 (1.Beijing University of Posts and Telecommunications,Beijing 100876,China,2.Shandong University of Technology,Zibo Shandong 255049,China) |
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| Abstract: | Based on Carreau rheological model,theoretical analysis of EHL film thickness was conducted for space lubricants.The calculated results were compared with those of Newton's model,Ree-Eyring rheological model and the measured data.The results show that different types of space liquid lubricants show different rheological properties of shear thinning under the same condition.The condition of shear thinning for space lubricants was given.Carreau rheological model reflects the actual working conditions well.Cor... |
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| Keywords: | space liquid lubricants Carreau rheological model EHL film thickness correction factor formula |
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