摘要
串列翼飞行器在气动性能上具有其特有的优势,非常适合轻质飞行器等应用领域。基于美国气动力工程估算程序DATCOM(Data Compendium)对串列翼布局飞行器进行了总体特性研究,分析了不同速度及迎角下,其性能变化特点,同时对部分关键几何参数如机身直径、机翼展长以及安装角进行了参数化研究。结果显示:在不同迎角及马赫数下,串列翼布局飞行器气动稳定性均较好,总体性能无明显波动,随着飞行速度的增加,飞行器的稳定性提升;增加机身直径对升力性能影响不大,主要导致了阻力系数增加;若机翼面积不变,适当缩小前机翼展长有助于提高串列翼飞行器的气动性能;增加前翼安装角有利于提高升力性能,增加后翼安装角有利于提高纵向静稳定性。
The aircraft with tandem wing layout has its unique advantages in aerodynamic performance,and is very suitable for light weight aircraft and other applications.Based on the American aerodynamic engineering estimation program DATCOM,the overall aerodynamic performance of the tandem wing configuration aircraft was studied.The characteristics of the performance changes at different Mach number and AOA(Angle of Attack)was analyzed,some key geometric parameters,such as fuselage diameter,wing span and installation angle were also studied.Results revealed that at different AOA and Mach number,the aerodynamic stability of the tandem wing configuration was good,and the overall performance had no obvious fluctuation.Increasing the diameter of fuselage had little effect on the lift performance,which mainly lead to the increase of drag coefficient.Increasing the front wing installation angle might improve the lift performance and increasing the rear wing installation angle could improve the longitudinal static stability.
作者
李大鹏
左松宸
顾瑞
LI Dapeng;ZUO Songchen;GU Rui(FAW-VW Co.,Ltd.,Changchun 130011,China;Academy of Military Sciences,Beijing 100071,China;PLA 94710 Unit,Wuxi 214141,China)
出处
《飞机设计》
2024年第1期14-19,29,共7页
Aircraft Design
关键词
串列翼布局
气动性能
升力
阻力
纵向静稳定性
tandem wing layout
aerodynamic characteristics
lift
drag
longitudinal static stability
