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小展弦比飞翼布局飞机稳定特性
引用本文:李林,马超,王立新.小展弦比飞翼布局飞机稳定特性[J].航空学报,2007,28(6):1312-1317.
作者姓名:李林  马超  王立新
作者单位:北京航空航天大学,航空科学与工程学院,北京,100083
基金项目:国家重点基础研究发展计划(973计划) , 教育部跨世纪优秀人才培养计划
摘    要: 飞翼布局飞机为改善隐身特性,取消了平尾和垂尾,构型的改变导致其稳定特性与常规飞机有很多不同。针对小展弦比飞翼布局飞机,分别研究其在几种典型飞行状态下的纵向和横航向的静、动稳定特性,通过与常规布局飞机进行对比,着重揭示了飞翼构型参数、飞行状态与其稳定性间的量化规律,并详细分析了这一布局纵向短周期模态及横航向荷兰滚模态发散的具体成因。

关 键 词:小展弦比  飞翼  稳定性  短周期模态  荷兰滚模态  
文章编号:1000-6893(2007)06-1312-06
修稿时间:2006年4月28日

Stability Features of Low Aspect-Ratio Flying Wings
Li Lin,Ma Chao,Wang Lixin.Stability Features of Low Aspect-Ratio Flying Wings[J].Acta Aeronautica et Astronautica Sinica,2007,28(6):1312-1317.
Authors:Li Lin  Ma Chao  Wang Lixin
Institution:School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics
Abstract:Flying wings get rid of horzontal tail and vertical tail in order to reduce RCS, but the changes of configuration lead to lots of new characteristics. The longitudinal and lateral-directional stability of the low aspect-ratio flying wing in several typical conditions was researched, including static stability and dynamic stability. And effects of configuration and flight conditions on the stability features of flying wings were especially analyzed, comparing with conventional-configuration aircrafts. Also the exact reasons of the unstable short-period mode and Dutch-roll mode were specially presented.
Keywords:low aspect-ratio  flying wing  stability  short-period mode  Dutch-roll mode
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