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弹箭与制导学报 >

2015 , Vol. 35 >Issue 2: 121 - 125

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2015.02.031

弹道与气动力技术

悬停状态桨尖形状对中小型旋翼的影响

  • 秦洁 ,
  • 何敏桃 ,
  • 邵伟平 ,
  • 石玉洁 ,
  • 韩宇
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  • 1 沈阳理工大学, 沈阳 110159
    2 海军驻沈阳弹药专业军事代表室, 沈阳 110100

秦洁(1963-)女,湖南人,教授,研究方向:弹箭技术与模拟仿真。

收稿日期: 2014-04-28

  网络出版日期: 2025-05-26

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Impact of Blade Tip Shape on Small and Medium Rotor in Hovering

  • QIN Jie ,
  • HE Mintao ,
  • SHAO Weiping ,
  • SHI Yujie ,
  • HAN Yu
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  • 1 Shenyang Ligong University, Shenyang 110159, China
    2 Military Representative Office of Navy Ammunition in Shenyang Area, Shenyang 110100, China

Received date: 2014-04-28

  Online published: 2025-05-26

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摘要

针对悬停状态中小型飞行器气动性能,考虑桨尖涡对飞行器桨叶桨尖的影响,分析了不同形状桨尖桨叶气动特性及其变化规律。尖削桨尖旋翼可有效削弱桨尖涡,从而降低旋翼的阻力距。桨尖涡导致桨尖处下洗速度减小,使桨尖处桨叶截面翼型的实际迎角增大。随着转速的提高,桨尖雷诺数的增大,尖削桨尖的优势才逐渐体现。

关键词： 悬停; 桨尖涡; 尖削; 后掠; 下反

本文引用格式

秦洁 , 何敏桃 , 邵伟平 , 石玉洁 , 韩宇 . 悬停状态桨尖形状对中小型旋翼的影响[J]. 弹箭与制导学报, 2015 , 35(2) : 121 -125 . DOI: 10.15892/j.cnki.djzdxb.2015.02.031

Abstract

To improve aerodynamic performance of small and medium rotor in hover, considering the influence of paddle blade turbulence, the aerodynamic performance and change ruler of different paddle blade tip shape were analyzed. The paddle blade turbulence can be reduced by sharpening paddle blade and the resisting moment of rotor in hovering. The turbulence reduces downwash speed in the blade tip and enlarges angle of attack of paddle blade section. Along with increase of rotation speed and Reynolds number, the superiority of sharpened paddle blade is clear.

Key words： hover; blade tip vortex; taper; sweep back; cathedrals

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