| 自由机翼气动特性的实验研究 |
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| 引用本文： | 周欲晓,顾蕴松,明晓.自由机翼气动特性的实验研究[J].实验流体力学,2005,19(4):61-64. |
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| 作者姓名： | 周欲晓 顾蕴松 明晓 |
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| 作者单位： | 南京航空航天大学无人机研究院,江苏,南京,210016;南京航空航天大学空气动力学系,江苏,南京,210016 |
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| 基金项目： | 航空基金资助项目（02A52001） |
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| 摘 要： | 设计了一种新型的自由机翼。与常规固定机翼和旋翼不同，自由机翼通过一根展向旋转轴固定在机身上，可在俯仰轴线上自由旋转。在飞行时，相对气流的平衡迎角保持稳定不变。即使受到如突风等外界扰动影响，自由翼也能在扰动消除后很快自动恢复到平衡迎角，避免了常规固定机翼的失速问题。通过风洞试验，对带升降副翼控制的自由翼气动特性也进行了实验研究，验证了位于自由翼后缘的升降副翼可有效地控制自由翼相对气流的平衡迎角。
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| 关 键 词： | 自由翼 平衡迎角 失速 |
| 文章编号： | 1672-9897（2005）04-0061-04 |
| 收稿时间： | 2005-05-08 |
| 修稿时间： | 2005-08-28 |
The research of aerodynamic characteristics of free wing |
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| ZHOU Yu-xiao,GU Yun-song,MING Xiao.The research of aerodynamic characteristics of free wing[J].Experiments and Measur in Fluid Mechanics,2005,19(4):61-64. |
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| Authors: | ZHOU Yu-xiao GU Yun-song MING Xiao |
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| Institution: | 1. Research Institute of Unmanned Vehicle, NUAA, Nanjing 210016, China; 2. Department of Aerodynamics, NUAA, Nanjing 210016, China |
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| Abstract: | A new free wing is designed. Unlike the traditional fixed wing or rotor, the free wing is free to pivot about spanwise shaft that pass though the fuselage. The free wing can keep constant angle of attack in flight, and automatically adjusts to follow the changes of wind. The free wing could show strong gust alleviation and be very resistant to stall. The aerodynamic characteristics of the free wing are investigated in this paper. The wind tunnel test results shows that the control of the angle of attack of the free wing can be achieved by deflecting elevons. |
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| Keywords: | free wing balanced angle of attack stall |
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