基于人在环实验的分布式翼身融合飞机临近失速特性研究
Journal: Engineering Technology Development DOI: 10.32629/etd.v6i5.16917
Abstract
针对分布式推进翼身融合(BWB)飞机在临近失速状态下的飞行特性,建立了非线性六自由度动力学模型,并开展了人在环仿真实验。结果表明：在临近失速条件下,分布式BWB飞机因俯仰力矩静不稳定及机身升力补偿,表现出机头上仰和速度快速下降特征,这与传统管翼式飞机的机头下沉失速现象不同,且会加剧失速发展；此外,受边界层抽吸(BLI)效应影响,其失速速度与动力状态密切相关,随推力减小而显著增大。基于上述特性,本文提出了适用于分布式BWB飞机的失速判定方法及飞行安全建议。
Keywords
分布式推进；翼身融合布局；临近失速；符合性方法；人在环仿真
Funding
国家重点研发计划资助(2022YFB4301003)。
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