Space extensible aircraft transformable nose cone provided with nested segmented housings

Abstract

The invention discloses a space extensible aircraft transformable nose cone provided with nested segmented housings. The space extensible aircraft transformable nose cone is composed of the nested segmented nose cone housings, cross bars and a transmission mechanism of the cross bars, a parallel guide rail rotating mechanism, and a motor screw rod and nut driving device; in whole body deflection and stretching motion process, the mutual nesting of segments of the nested segmented housings can be maintained, the line contact of adjacent nose cone housings is ensured, and the special shape characteristic of the nested segmented housings is capable of improving the nose cone sealing performance greatly, and the reliability of the transformable nose cone is improved. A space extensible structure with a motion freedom of 2 is formed by the nested segmented housings, the cross bar mechanism, and the parallel guide rail rotating mechanism on the side surface; the adoption of the transmissionmechanism is capable of realizing integral body linkage of the segmented housings. The space extensible aircraft transformable nose cone is flexible in transformation, lower in driving, small in nosecone occupied space, and stable in transformation.

Description

technical field [0001] The invention relates to the technical field of aircraft, in particular to a space-expandable aircraft deformable nose cone with a nestable segmented shell. Background technique [0002] Compared with ordinary aircraft, aerospace vehicles often experience complex environments such as flying in the atmosphere and space and re-entering the atmosphere. The requirements for the aerodynamic shape of aerospace vehicles are quite different in each flight stage. It is the future development direction of the aerospace vehicle structure to design the aerospace morphing vehicle so that it can realize the variable aerodynamic configuration autonomously. To realize the variable structure of the aerospace vehicle, it can be carried out from the nose cone, wing leading edge, swept wing and other parts. If the nose cone has a variable body structure function, the bluntness of the nose cone in the ascent section and re-entry section can be changed to improve heating, ...

AI Technical Summary

Problems solved by technology

At present, only the Chinese patent CN105346702A is available for the deformed nose cone of aircraft. Most of the deformed nose cones of aircraft have large gaps between the segmented nose cone shells, resulting in poor load-bearing performance and space sealing performance. The development of the fuselage deformable skin technology is not enough to make up for the shortcomings in performance and sealing performance caused by the shell gap

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