Morphing nose cone of aircraft based on multi-ring closed-chain space-deployable mechanism

Abstract

The invention provides a morphing nose cone of an aircraft based on a multi-ring closed-chain space-deployable mechanism. The morphing nose cone comprises a plurality of conical body segments, a driving part and a conical head, wherein the first conical body segment and the last conical body segment are respectively provided with a group of hold-down groove and sliding groove, and the rest conicalbody segments are respectively provided with two groups of hold-down groove and sliding groove; a secondary scissors type mechanism with both telescoping and bending functions is arranged between twoadjacent body segments; one end of each secondary scissors type mechanism is cooperated with the hold-down groove or the sliding groove on one body segment, and the other end of each secondary scissors type mechanism is connected with a next-stage scissors type mechanism through a telescoping rod equipped with a spherical hinge; the driving part is composed of a push rod, a cross bar, connectingrods and connection shafts in parallel connection and carries out distributed driving; and the conical head is located at the forefront of the plurality of conical body segments. The morphing nose cone of the invention can realize complex morphing and has the advantages of flexible movement, great morphing amount, strong controllability, etc.

Description

technical field [0001] The invention relates to the technical field of aerospace vehicles, in particular to an aircraft variant nose cone based on a multi-loop closed-chain space expandable mechanism. Background technique [0002] The flight performance of the aircraft can be improved by proper deformation of the aircraft in different flight environments. The structural variation of the variant aircraft in the related art is mainly the deformation of the wing, but the deformation of the wing will complicate the aerodynamic characteristics of the aircraft. The nose cone is an important part of the design of the variant aircraft. Different flight environments need to choose different The shape of the nose cone, so the deformable nose cone is of great significance for the optimization of the aerodynamic shape of the aircraft. Contents of the invention [0003] In order to overcome the deficiencies of the above-mentioned prior art, the purpose of the present invention is to p...

AI Technical Summary

Problems solved by technology

The structural variation of the variant aircraft in the related art is mainly the deformation of the wing, but the deformation of the wing will complicate the aerodynamic characteristics of the aircraft. The nose cone is an important part of the design of the variant aircraft. Different flight environments need to choose different The shape of the nose cone, so the deformable nose cone is of great significance for the optimization of the aerodynamic shape of the aircraft

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