| 直升机用小型高压离心式风机的设计 |
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| 引用本文： | 李琳,余建祖,谢永奇.直升机用小型高压离心式风机的设计[J].北京航空航天大学学报,2003,29(3):244-247. |
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| 作者姓名： | 李琳 余建祖 谢永奇 |
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| 作者单位： | 北京航空航天大学 飞行器设计与应用力学系 |
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| 摘 要： | 针对直升机用离心式风机高压力、高转速和小尺寸的特点,进行了基本结构参数的分析与计算;利用 "可控涡"设计理论分析了气体在离心风机叶轮内的流动规律,讨论了气体涡分布对回转流面的影响,提出了气体涡选择的约束条件,详细设计了叶片的子午流面和回转流面型线,同时进行了通用性设计.实例表明,通过合理确定气体涡分布规律来设计叶片型线,可有效提高风机的效率.
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| 关 键 词： | 离心式通风机 叶型 通用性 气体涡 |
| 文章编号： | 1001-5965(2003)03-0244-04 |
| 收稿时间： | 2001-10-10 |
| 修稿时间： | 2001年10月10日 |
Design of Small-Size and High-Pressure Centrifugal Fans Used in Helicopters |
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| Li Lin,Yu Jianzu,Xie Yongqi.Design of Small-Size and High-Pressure Centrifugal Fans Used in Helicopters[J].Journal of Beijing University of Aeronautics and Astronautics,2003,29(3):244-247. |
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| Authors: | Li Lin Yu Jianzu Xie Yongqi |
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| Institution: | Dept. of Flight Vehicle Design and Applied Mechanics, Beijing University of Aeronautics and Astronautics |
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| Abstract: | Based on the characters of high pressure, high speed and small size of centrifugal fans used in helicopters, the basal structure parameters of the fans were analyzed and calculated. Efforts were made to analyze the flowing rules of the gas in the impeller. Influence of distribution of the gas vortex on the across section was discussed. Restriction requirements of selecting the gas vortex was put forward. The shape of the meridian section and the across section was designed. It was proved that the efficiency of the centrifugal fans can be evidently improved by reasonably determining the distribution of the gas vortex. |
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| Keywords: | centrifugal fans blade profile generality gas vortex |
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