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A deformable plate structure driven by a pressure-filled variable-stiffness arc tube

A technology of deforming structure and changing stiffness, which is applied in directions such as wing adjustment to achieve the effects of low energy consumption, stable deformation characteristics, and adjustable deformation shape.

Active Publication Date: 2021-10-15
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, a comprehensive analysis of the current research status of variable-wing aircraft shows that the existing variable-body aircraft based on intelligent structures and materials is still in the conceptual research stage, and there is still a long way from engineering practicality. Variable body structure with strong bearing capacity, multiple deformations and high deformation control accuracy

Method used

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  • A deformable plate structure driven by a pressure-filled variable-stiffness arc tube
  • A deformable plate structure driven by a pressure-filled variable-stiffness arc tube
  • A deformable plate structure driven by a pressure-filled variable-stiffness arc tube

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Experimental program
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Effect test

Embodiment 1

[0043] Such as Figure 6Shown is a three-dimensional schematic diagram of a deformable plate structure driven by a pressure-filled variable-stiffness arc tube with uniform thickness. The variable body structure in the figure mainly includes a deformable plate 1, a pressure-filled variable-stiffness arc tube 2, and a pressure-filled common rail tube 3; The rail tubes 3 are connected and the inner cavities are connected, the sealed end of the pressure-filled variable stiffness arc tube 2 is connected to the inner wall of the end of the deformed plate 1, and the pressure-filled common rail tube 3 is connected to the inner wall of the other end of the deformed plate 1. Appropriately improve the deformability of the deformable plate; after the pressure-inflating and variable-stiffness arc tube 2 is charged with a proper pressure through the pressure-charging common rail tube 3 inside the deformable plate, the deformable plate 1 will follow the pressure-varying stiffness arc. The d...

Embodiment 2

[0045] Such as Figure 7 Shown is a three-dimensional schematic diagram of a deformable plate structure driven by a pressure-filled variable stiffness arc tube after further optimizing the section. On the basis of the original deformable plate structure driven by pressure-filled variable stiffness arc tubes, the thickness of the deformable plate and the weakening groove are optimized, and the deformable plate structure is properly improved under the premise of ensuring that the deformable plate structure has a certain bearing capacity. The deformability of the plate; after the pressure-inflating and variable-stiffness arc tube 2 is charged with an appropriate pressure through the pressure-charging common rail tube 3 inside the deformable plate, the deformable plate 1 will follow the pressure-variable-stiffness arc-shaped tube 2 Deformed and arched, it will be realized as Figure 7 deformation shown.

[0046] Such as Figure 8 As shown, it is a comparison diagram of the rela...

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Abstract

The invention provides a deformable plate structure driven by a pressure-filled variable-stiffness arc tube, which is characterized in that it comprises: Sealed plate-shaped structure; pressure-filled arc-shaped tube with variable stiffness has a pen-tube-shaped cylindrical tube with one end as a sealed end and the other end as an open end; The inner wall of one end of the deformed plate is fixed; the pressure common rail pipe is fixed on the inner wall of the other end of the deformed plate, and is connected with the opening end of the pressure-filled variable stiffness arc pipe, and the pressure-filled common rail pipe The inner cavity communicates with the inner cavity of the pressure-filled variable stiffness arc tube. The invention is a purely mechanical structure, the rigidity and deformation of the structure can be adjusted by changing the charging pressure, it is not disturbed by the electromagnetic field environment, and has the advantages of adjustable deformation shape, stable deformation characteristics, low energy consumption and the like.

Description

technical field [0001] The invention belongs to the field of intelligent materials and structures, and in particular relates to a deformable plate structure driven by a pressure-filled variable-rigidity arc tube. Background technique [0002] As we all know, the geometric shape of a conventional fixed wing is designed according to the specific flight mission, altitude, Mach number and aircraft weight of the aircraft, which is usually optimized for only one design point, while other design points are compromised. In a complete flight process, the flight parameters corresponding to different flight stages are constantly changing, and the geometry of the fixed wing cannot be optimal in most cases. For example, aircraft requires wings with high lift coefficient and large wing area when taking off and landing; high lift-to-drag ratio and large wing area when cruising; low aspect ratio and small wing area when flying at high speed. If the aerodynamic shape of the wing can be chan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64C3/38
CPCB64C3/38
Inventor 赵剑房启飞高仁璟王玮
Owner DALIAN UNIV OF TECH