| 径向可倾瓦轴承的热弹流润滑分析 |
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| 引用本文： | 常秋英,孟永钢,温诗铸,杨沛然.径向可倾瓦轴承的热弹流润滑分析[J].机械工程学报,2002,38(9):77-82. |
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| 作者姓名： | 常秋英 孟永钢 温诗铸 杨沛然 |
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| 作者单位： | 1. 清华大学摩擦学国家重点实验室,北京,100084
2. 青岛建筑工程学院 |
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| 基金项目： | 国家自然科学基金资助项目（59375206） |
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| 摘 要： | 用Newton-Raphson法一次性求出了所有瓦块的压力分布和轴心的位置,用步进扫描法对轴承进行了三维温度场分析,用20节点有限元法构造了瓦块的压力变形矩阵和热变形矩阵。
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| 关 键 词： | 径向可倾瓦轴承 热弹性流体动力润滑 Newton-Raphson法 |
| 修稿时间： | 2001年8月4日 |
TEHL ANALYSIS OF TILTING-PAD JOURNAL BEARINGS WITH NEWTON-RAPHSON METHOD |
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| Chang Qiuying,Meng Yonggang,Wen Shizhu.TEHL ANALYSIS OF TILTING-PAD JOURNAL BEARINGS WITH NEWTON-RAPHSON METHOD[J].Chinese Journal of Mechanical Engineering,2002,38(9):77-82. |
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| Authors: | Chang Qiuying Meng Yonggang Wen Shizhu |
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| Affiliation: | Chang Qiuying Meng Yonggang Wen Shizhu (Tsinghua University)Yang Peiran (Qingdao Institute of Architecture and Engineering) |
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| Abstract: | Thermoelastohydrodynamic lubrication (TEHL) analysis is presented to investigate the static performance of tilting-pad journal bearings. Completely numerical solution is obtained. The Newton-Raphson method is employed to predict the bearing characteristics of the hydrodynamic pressure, the eccentricity and the pad attitude angles simultaneously. For the temperature calculation 3-D energy equations for the fluid under each pad and 3-D heat transfer equations for the pads are solved using a sequential sweeping method. The elastic deformation and thermal expansion of each pad are calculated with the 20-node iso-parameter finite element method. The results show that the elastic deformation is not so important as the thermal expansion. |
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| Keywords: | Tilting-pad journal bearing Thennoelastohydrodynamic Newton-Raphson method |
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