| 静压轴径轴承静态特性的数值模拟分析 |
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| 引用本文： | 孙立佳,孙淑凤,张华涛,王立. 静压轴径轴承静态特性的数值模拟分析[J]. 低温与超导, 2010, 38(1) |
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| 作者姓名： | 孙立佳 孙淑凤 张华涛 王立 |
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| 作者单位： | 北京科技大学热科学与能源工程系,北京,100083;北京科技大学热科学与能源工程系,北京,100083;北京科技大学热科学与能源工程系,北京,100083;北京科技大学热科学与能源工程系,北京,100083 |
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| 摘 要： | 气体润滑轴承具有摩擦小、寿命长、精度高等优点,已经在精密工程等许多领域有着十分广阔的应用。文中对气体润滑基本方程Reynolds方程进行了分析,利用FLUENT对透平膨胀机用静压轴径轴承模型进行了数值模拟,得到轴承表面的压力分布;并逐一研究了供气压力、偏心率和轴承结构参数等因素对静压气体轴承静态特性的影响规律。
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| 关 键 词： | 气体静压轴承 偏心率 承载力 |
Numerical analysis of externally pressurized gas bearing |
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| Sun Lijia,Sun Shufeng,Zhang Huatao,Wang Li. Numerical analysis of externally pressurized gas bearing[J]. Cryogenics and Superconductivity, 2010, 38(1) |
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| Authors: | Sun Lijia Sun Shufeng Zhang Huatao Wang Li |
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| Affiliation: | Department of Thermal Science and Energy Engineering;University of Science and Technology Beijing;Beijing 100083;China |
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| Abstract: | Gas bearings have been widely used in many engineering fields,such as precision engineering.They have specific advantages,low friction,long life,and high precision etc.Reynolds equation which is the governing equation of the gas bearing lubrication is derivation,the numerical simulation is made on the externally pressurized gas bearing for turbo-expanders by FLUENT,and the chromatic pressure distribution on bearing surface is obtained.The effects of supply pressure,and bearing's structural parameters on sta... |
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| Keywords: | Externally pressurized gas bearing Eccentricity ratio Bearing capacity |
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