摘要
采用Lagrange乘数优化方法,约束升力系数和机翼翼根弯矩,通过修改机翼+翼梢小翼组合体的结构外形,减小机翼的诱导阻力和形状阻力,提高机翼的展向效率和升阻比的大小。成功的实例设计结果表明,本文方法对民用飞机机翼-翼梢小翼的设计具有应用价值。
The Lagrange multipliers optimization method is presented for wing ＋ winglet configuration with constraint for lifting coefficient and wing root bending moment. By shaping the wing with winglet, decrease the sum of induced drag and profile drag, increase span efficiency and lift-drag ratio. The results of practical design showed that this method can be used in the design of winglet.
出处
《空气动力学学报》
EI
CSCD
北大核心
2006年第3期367-370,共4页
Acta Aerodynamica Sinica
关键词
翼梢小翼
优化设计
诱导阻力
形状阻力
翼根弯矩
winglet
optimal design
induced drag
profile drag
wing root bending moment
