一种新型涵道飞行器的设计与气动特性研究

doi:10.3969/j.issn.1000-1093.2012.07.017

摘要/Abstract

摘要： 涵道飞行器可以悬停、垂直起降和前飞，且安全性高、结构紧凑、噪声低。针对涵道飞行器一般只能以直升机模式低速前飞，设计了一种能以飞机模式快速前飞的新型可倾转有翼微型涵道飞行器。该涵道飞行器设计固定机翼，且涵道外形设计综合考虑了低速飞行和快速飞行的性能要求。然后采用数值模拟和风洞实验的方法研究了它在不同飞行模式下的气动特性。研究结果表明：该新型微型涵道飞行器不仅可以悬停、垂直起降和以直升机模式低速前飞，而且能以飞机模式快速前飞涵道飞行器可以悬停、垂直起降和前飞，且安全性高、结构紧凑、噪声低。针对涵道飞行器一般只能以直升机模式低速前飞，设计了一种能以飞机模式快速前飞的新型可倾转有翼微型涵道飞行器。该涵道飞行器设计固定机翼，且涵道外形设计综合考虑了低速飞行和快速飞行的性能要求。然后采用数值模拟和风洞实验的方法研究了它在不同飞行模式下的气动特性。研究结果表明：该新型微型涵道飞行器不仅可以悬停、垂直起降和以直升机模式低速前飞，而且能以飞机模式快速前飞并在整个飞行包线中具有良好的气动特性。

关键词: 流体力学, 飞行器, 设计, 倾转, 动量源, 气动特性

Abstract: Ducted fan aircraft can hover, take off and land vertically, and fly forward, which has high safety, compact structure and low noise. However, they generally can only fly forward slowly in helicopter mode. A new tilt-body ducted fan micro air vehicle (MAV) with wings which is capable of high-speed forward flight in wing-borne mode was designed. Pairs of wings were designed, and the geometry design reflects a compromise between low and high speed performance requirements. Numerical simulation and wind tunnel testing were used to study the aerodynamic characteristics of ducted fan MAV in various modes. The results indicate that the novel ducted fan MAV can hover, take off and land vertically, fly slowly in helicopter mode, and fly rapidly in wing-borne mode, and shows the good aerodynamic performances throughout the whole flight envelope.

中图分类号:

V211

蔡红明，昂海松，段文博. 一种新型涵道飞行器的设计与气动特性研究[J]. 兵工学报, 2012, 33(7): 857-863.

CAI Hong-ming, ANG Hai-song, DUAN Wen-bo. Design of a New Ducted Fan Aircraft and Its Aerodynamic Characteristic Research[J]. Acta Armamentarii, 2012, 33(7): 857-863.

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