| EMP径向滑动轴承三维热弹流有限元分析与研究 |
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| 引用本文： | 石晓祥,张颖,张国贤. EMP径向滑动轴承三维热弹流有限元分析与研究[J]. 机械设计, 2000, 17(10): 27-29 |
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| 作者姓名： | 石晓祥 张颖 张国贤 |
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| 作者单位： | 1. 上海交通大学,塑性成形工程系,上海,200030
2. 上海大学,机械自动化学院 |
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| 基金项目： | 国家自然科学基金!资助项目 (597750 37) |
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| 摘 要： | ＥＭＰ径向滑动轴承的热弹变形对轴承的润滑性能影响较大。当采用Ｗｉｎｋｌｅｒ假设将其简化为梁来计算时与实际结果相比误差较大。为此采用了一种轴承热弹流有限元分析的计算模型，按照三维有限元的方法对其进行了全面的热弹变形分析，同时结合广义雷诺方程、能量方程等进行耦合计算和分析。计算表明：三维有限元方法同Ｗｉｎｋｌｅｒ假设相比，更能反映油膜和轴瓦的温度分布，有助于揭示轴承的润滑特性。
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| 关 键 词： | 热弹流 有限元 六面体单元 EMP径向滑动轴承 |
Three dimensional TEHD finite element analysis and research of EMP radial slidin g bearing |
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| SHI Xiao xiang et al. Three dimensional TEHD finite element analysis and research of EMP radial slidin g bearing[J]. Journal of Machine Design, 2000, 17(10): 27-29 |
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| Authors: | SHI Xiao xiang et al |
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| Abstract: | The thermal-elastic deformation of EMP radial sliding bearing makes rather big influence on lubrication properties of bearing.The result claculated from taking winkler hypothesis to let the deformation be simplified as a beam shows a rather big error compared with practical result.This paper adopted a kind of calculation model of finite element analysis on thermo-elastic-hydrodynamics and carried out an overall analysis on thermal-elastic deformation according to 3-D finite element method.In the meantime the coupled calculation and analysis are carried out by combining with generalized Regnolds equation and energy equation.The calculation shows that the 3-D finite element method can reflect temperature distribution of oil film and bush more better when compared with winkler hypothesis,and is helpfue to reveal the lubrication property of bearings. |
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| Keywords: | TEHD(Thermo-elastic-hydrodynamic) Finite element Hexahedral unit EMP radial sliding bearing |
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