Flight vehicle deformable nose cone with parallel mechanism

Abstract

The invention discloses a flight vehicle deformable nose cone with a parallel mechanism. The deformable nose cone comprises N annular body segments and N-1 deformable driving mechanism. Each deformable driving mechanism comprises a first driving rod assembly and a second driving rod assembly, wherein one end of the first driving rod assembly is connected with the annular body segment behind the first driving rod assembly and can move horizontally in the axial direction of the first driving rod assembly, and the other end of the first driving rod assembly is connected with the annular body segment in front of the first driving rod assembly in a pivoted mode; and one end of the second driving rod assembly is connected with the annular body segment behind the second driving rod assembly, can move horizontally in the axial direction of the second driving rod assembly, and can pivot around the pivoting axis perpendicular to the axial direction of the annular body segment, and the other end of the second driving rod assembly is connected with the annular body segment in front of the second driving rod assembly in a pivoted mode. Stretching out, drawing back and bending of the deformable nose cone are achieved through the annular body segments with matching of translation of the first driving rod assemblies, translation of the second driving rod assemblies and pivoting of the second driving rod assemblies. The deformable nose cone is capable of achieving elongation and bending deformation, large in deformation amount and flexible in deformation posture.

Description

technical field [0001] The invention relates to the field of aerospace technology, in particular to an aircraft deformation nose cone with a parallel mechanism. Background technique [0002] An aerospace vehicle is a new type of aircraft that has both the functions of an aircraft and a spacecraft. During the flight, the aerospace vehicle needs to experience the environmental changes of flying in the atmosphere and space, and re-entering the atmosphere. At each stage, there are different requirements for the aerodynamic layout of its structure. 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, it is possible to improve the heating an...

AI Technical Summary

Problems solved by technology

At present, only the Chinese patent CN105346702A is available for the deformed nose cone device of the aircraft, which adopts the hydraulically driven connecting rod bending mechanism and the motor driven folding rod telescopic mechanism to respectively realize the stretching and bending deformation of the nose cone, which is characterized in that the mechanism is installed on the adjacent ring body Between the inner wall and the outer wall of the segment, the annular body segment has a larger diameter decrease and a sharper nose cone, so the deformation is small and the deformation is not flexible

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