| 不同镜板转速对推力轴承油膜流场的影响 |
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| 引用本文： | 郅刚锁 陈志澜 等. 不同镜板转速对推力轴承油膜流场的影响[J]. 机械科学与技术, 2001, 20(2): 187-188 |
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| 作者姓名： | 郅刚锁 陈志澜 等 |
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| 作者单位： | 西安交通大学!西安710049 |
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| 基金项目： | 国家自然科学基金资助! (5 93 75 2 0 5 ) |
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| 摘 要： | 以推力轴承中的油膜层作为控制体系 ,建立了油膜层的非等温三维流场偏微分方程组数学模型 ,通过采用有限差分方法对其所构成的偏微分方程组进行数值求解。在数值计算的基础上 ,详细分析了镜板不同转速对推力轴承油膜层速度场分布的影响、油膜层速度矢量分布和油膜层与层之间速度分布规律。研究结果表明 :油膜层中的速度矢量分布主要由周向速度和径向速度所组成 ,其速度矢量分布是构成油膜层对流换热的主要因素。
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| 关 键 词： | 推力轴承 三维热弹流 流场分析 |
| 文章编号： | 1003-8728(2001)02-0187-02 |
| 修稿时间： | 1999-09-20 |
Influence of Different Rotor Speed to Fluid Field in Oil Film of Thrust Bearing |
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| ZHI Gang-suo,CHEN Zhi-lan,ZHU Jun. Influence of Different Rotor Speed to Fluid Field in Oil Film of Thrust Bearing[J]. Mechanical Science and Technology for Aerospace Engineering, 2001, 20(2): 187-188 |
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| Authors: | ZHI Gang-suo CHEN Zhi-lan ZHU Jun |
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| Abstract: | With the object of study in oil film stratum of thrust bearing, the non-isothermal three-dimensional mathematical model of oil film stratum is formulated and the finite difference method is deduced in this paper. Based on numerical calculation, the influences on the fluid field distribution in oil film of thrust bearing caused by different rotor speed, the velocity vector distribution and the rule of velocity between oil film layers are analyzed in detail. It is thought that the velocity vector distribution in oil film stratum is composed of radial velocity and circumferential velocity and is the dominant factor influencing the heat convection. |
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| Keywords: | Thrust bearing Three-dimensional thermohydrodynamic Fluid field Oil film stratum |
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