纵向静稳定度可调的鸭式气动布局设计与分析  

Design and Analysis of Canard Configurations with Adjustable Longitudinal Static Stability Margin

作　　者：刘荣健[1] 白鹏[1] LIU Rong-jian;BAI Peng(China Academy of Aerospace Aerodynamics,Beijing 100074,China)

机构地区：[1]中国航天空气动力技术研究院,北京100074

出　　处：《气体物理》2022年第3期82-86,共5页Physics of Gases

摘　　要：焦点与质心的位置关系,即静稳定度是飞行器研制和使用中的重要参数.为实现在飞行过程中实时调节合理的静稳定度,提出了3种可变形鸭翼形式,即可变后掠鸭翼、伸缩鸭翼、滑动鸭翼.通过计算流体力学仿真的手段研究了3种可变形鸭翼方案在宽速域范围内的焦点位置调节能力.结果表明3种方案均具有有效的焦点位置调节能力,在所研究的参数范围内,可变后掠鸭翼在亚声速段具有最强的焦点调节能力;伸缩鸭翼在跨声速和超声速段焦点调节能力相对较强;在高超声速段滑动鸭翼的焦点调节能力最强.分析认为3种方案中可变后掠鸭翼最具工程实现价值.The position relationship between aerodynamic center and center of mass,i.e.the static stability margin,is an important parameter in the development and use of aircraft.In order to realize real-time adjustment of reasonable static stability margin during flight,three forms of morphing canard were proposed,namely variable sweep canard,stretch canard and slide canard.The aerodynamic center position adjustment ability of three morphing canard forms in a wide speed range was studied by computational fluid dynamics simulation.The results show that the three forms have effective aerodynamic center position adjustment ability.Within the range of studied parameters,the variable sweep canard has the strongest aerodynamic center adjustment ability in the subsonic region.The stretch canard has a relatively strong ability to adjust the aerodynamic center position in transonic and supersonic regions.The slide canard has the strongest aerodynamic center position adjustment ability in the hypersonic region.The analysis shows that the variable sweep canard has the most engineering value among the three forms.

关 键 词：静稳定度 焦点 可变形飞行器 气动布局 鸭翼 

分 类 号：V211.41[航空宇航科学与技术—航空宇航推进理论与工程]