航空学报 > 2007, Vol. 28 Issue (6): 1312-1317

小展弦比飞翼布局飞机稳定特性

李林,马超,王立新   

  1. 北京航空航天大学 航空科学与工程学院
  • 收稿日期:2006-04-28 修回日期:2007-09-27 出版日期:2007-12-15 发布日期:2007-12-15
  • 通讯作者: 李林

Stability Features of Low AspectRatio Flying Wings

Li Lin,Ma Chao,Wang Lixin   

  1. School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics
  • Received:2006-04-28 Revised:2007-09-27 Online:2007-12-15 Published:2007-12-15
  • Contact: Li Lin

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

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.

Key words: low , aspect-ratio,  , flying , wing,  , stability,  , short-period , mode,  , Dutch-roll , mode

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