Hypersonic flight vehicle and trajectory design thereof

Abstract

The invention relates to the improvement of a hypersonic flight vehicle in near space, and provides a hypersonic flight vehicle and trajectory design thereof. According to the hypersonic flight vehicle, the structure is exquisite, stability is good, reliability is high, the hypersonic flight vehicle can be contained in a hood with the length being 3200 mm and the diameter being 800 mm, the high lift-drag ratio can be kept, and a folding structure can keep high structure stability. The hypersonic flight vehicle comprises a conic front edge, a columnar cabin, a pair of wings and a vertical tailvane. The conic front edge is fixedly connected to the front portion of the columnar cabin. The vertical tail vane is arranged vertically and is fixedly connected to the rear portion of the top face of the columnar cabin. Each wing comprises a fixed wing, a folding wing and a tail wing, all of which are identical in thickness. As a whole, the hypersonic flight vehicle has the advantages of being exquisite in structure, good in stability and high in reliability.

Description

technical field [0001] The present invention relates to the improvement of hypersonic aircraft in adjacent space. Background technique [0002] Near space generally refers to an aircraft that is 20-100 kilometers from the ground and performs specific tasks in near space. It can provide more and more accurate information than satellites, and it can reduce the chance of being attacked by the ground than ordinary aircraft. Therefore, hypersonic speed in near space Aircraft is a research hotspot in the aerospace field. At present, in the adjacent space, the wave resistance and frictional resistance encountered by hypersonic vehicles during flight are relatively large, and in the case of limited booster thrust, matching thrust cannot be generated. Therefore, the improvement of the aerodynamic shape layout of hypersonic vehicles, Further improving the lift-to-drag ratio of a hypersonic vehicle has always been a difficult point in this field. [0003] At the same time, in order t...

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Problems solved by technology

[0004] In addition, under hypersonic flight conditions, the heat flux density of the airflow is high, which can heat the surface of the aircraft. If the traditional folding structure is adopted, the shaft of the aircraft will withstand higher temperatures; in such a traditional folding structure, the shaft of the aircraft is generally Direct contact with the incoming flow, being attacked by hot air flow, causing the shaft to bear more ablation

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