摘要
飞翼构型作战飞机采用无尾翼身融合布局,由于取消了平尾,使其稳定性及阻尼特性下降,需要操纵面具有良好的舵面特性才能保证其获得满意的飞行品质。采用3种不同的短周期飞行品质评定方法,评定小展弦比飞翼构型飞机在不同舵面特性组合情况下的飞行品质,并总结了舵面特性与短周期飞行品质等级间的关系,给出了依据操纵导数和舵面偏转速率大小所划分的品质优劣边界。结果表明,舵面特性变差将导致飞翼构型飞机的短周期飞行品质恶化。研究方法及结果可用于指导此类新布局飞机的初步设计和飞行品质的评定。
Flying wing combat aircraft adopts a tailless blended-wing-body configuration,which leads to the decline of stability and damping. Therefore the control surface must possess good characteristics to ensure good flying quality in the short period mode. Three flying quality criteria are adopted to assess the flight quality of a low-aspect-ratio flying wing aircraft with different control surface characteristics, and the relationship between control surface characteristics and short period flying quality grade is summarized. The short period flying quality boundary assessed by the control derivative values and deflexion rate is introduced. The result indicates that the flight quality of the flying wing aircraft tends to become worse if the control surface exhibits poor performance characteristics. The research method and results can be used to guide the preliminary design and flying quality evaluation of new configuration aircraft.
出处
《航空学报》
EI
CAS
CSCD
北大核心
2009年第11期2059-2065,共7页
Acta Aeronautica et Astronautica Sinica
基金
国家级科研项目
教育部"新世纪优秀人才支持计划"(NCET-05-0191)
关键词
飞行动力学
飞行品质
短周期
舵面特性
作战飞机
飞翼
偏转速率
flight dynamics
flight quality
short period
control surface characteristic
fighter aircraft
flying wing
deflexion rate
作者简介
通讯作者：李淼E-mail：buaalimiao@126．com 李淼（1982-）男，硕士研究生。主要研究方向：飞机设计、飞行品质与飞行性能。Tel：010—82338821 Email：buaalimiao@126．com
王立新（1965-）男，博士，教授，博士生导师。主要研究方向：飞机设计、飞行动力学与飞行控制等。Tel：010-82338821 E—mail：bhuwlx@tom．com
黄成涛（1984-）男，硕士研究生。主要研究方向：飞行动力学与控制、飞行安全。Tel：010-82338821 E—mail：hctll3a@yahoo．com．cn
