北京航空航天大学学报 ›› 2006, Vol. 32 ›› Issue (12): 1399-1402.

• 论文 • 上一篇    下一篇

某无人机气动估算与风洞试验

马东立, 马铁林, 刘薇薇   

  1. 北京航空航天大学 航空科学与工程学院, 北京 100083
  • 收稿日期:2005-12-05 出版日期:2006-12-31 发布日期:2010-09-21
  • 作者简介:马东立(1966-),男,山东郓城人,教授, madonglibuaa@126.com.

Calculation method of critical radar cross section of   low pulse repetition frequency PD radar

Ma Dongli, Ma Tielin, Liu Weiwei   

  1. School of Aeronautic Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
  • Received:2005-12-05 Online:2006-12-31 Published:2010-09-21

摘要: 基于气动估算和风洞试验相结合的方法,研究某型无人机的气动特性.通过不同V形尾翼纵向力矩对比试验,发现尾翼上反角对纵向力矩特性影响较大,并分析了纵向力矩曲线上翘的原因.进行飞机部件及全机气动性能对比试验,给出V形尾翼无人机气动估算方法,找出计算与试验结果产生差别的原因,通过调整尾翼安装角,优化了无人机的气动特性.同时风洞试验也证明所采用的气动估算方法是可信的,可用于此类布局无人机的气动计算.

Abstract: The aerodynamic characteristic of UAV(unmanned air vehicle) was studied based on the method of combining aerodynamic prediction with wind tunnel test. The contrast tests of longitudinal moment for different anhedral and incidence of V-tails were conducted to confirm the empennage distribution and to find out that the anhedral of V-tail affected the longitudinal moment greatly. The causes of turnup moment curves were analyzed. The components and the whole airplane aerodynamic tests were carried out, and the methods for calculating the aerodynamic characteristic of V-tail UAVs were given. Furthermore, the cause of the difference between the two methods was analyzed. The aerodynamic characteristic of a UAV was optimized by adjusting the incidence of empennage. In the wind tunnel test, the aerodynamic prediction methodology is testified reliable to be used to calculate the aerodynamic characteristic of the other airplane with the same aerodynamic configuration.

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