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Shape memory alloy spring driven wing cellule with deformable section plane

A memory alloy spring, deformed wing technology, applied in the directions of wings, chords/stringers, aircraft parts, etc., can solve the problems of insufficient installation space, insufficient driving force, deformation of driving components, etc., to achieve reasonable structure, simple operation, Reliable effect

Inactive Publication Date: 2009-02-18
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

General driving elements are difficult to deploy in the narrow space of the wing structure, and these driving elements are either insufficient in deformation, insufficient in driving force, or insufficient in installation space

Method used

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  • Shape memory alloy spring driven wing cellule with deformable section plane
  • Shape memory alloy spring driven wing cellule with deformable section plane
  • Shape memory alloy spring driven wing cellule with deformable section plane

Examples

Experimental program
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Embodiment Construction

[0033] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0034] With reference to the drawings, this embodiment includes a front edge box 4, a rear edge box 2, a composite material skin 1, a load frame 10, a drive mechanism and a redundant structure driven by a shape memory alloy spring, and a drive mechanism and a shape memory alloy spring drive. The redundant structure is installed on the load frame 10, and the redundant structure driven by the shape memory alloy spring includes a shape memory alloy spring 14, a nylon sleeve 15, a nylon adjusting nut 16, an SMA spring fixing nut 13, an SMA spring fixing stud and nylon The push rod 17 and the shape memory alloy spring 14 are arranged in the nylon bushing 15 through the SMA spring fixing nut 13 and the SMA spring fixing stud respectively, and the nylon nut 16 fixes the nylon bushing 15 on the bearing On the frame 10, the nylon push rod 17 is connected to t...

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PUM

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Abstract

The invention provides a wing structure with a deformable section, which is powered by a shape-memory alloy spring.. The wing structure comprises, a front edge and a back edge, a composite material skin, a bearing frame, a driving mechanism and a redundancy structure of a shape-memory alloy spring driving; the driving mechanism and the redundancy structure of a shape-memory alloy spring driving are arranged on the bearing frame; the redundancy structure of a shape-memory alloy spring driving comprises a shape-memory alloy spring, a nylon casing, a nylon adjusting nut, a SMA spring fixing screw cap, a SMA spring fixing stud and a nylon push rod; the shape-memory alloy spring is arranged in the nylon casing through the SMA spring fixing screw cap and the SMA spring fixing stud; the nylon casing is fixed on the bearing frame through the matching with the nylon nut; the nylon push rod is connected with the SMA spring fixing stud. The invention has the characteristics of light quantity, miniature, reasonable structure, easy operation and high reliability, and can realize the enough driving force and driving displacement in limited space, and the like.

Description

(1) Technical field [0001] The invention relates to aircraft wing structure technology, in particular to a shape memory alloy spring driving section deformable wing structure. (2) Background technology [0002] Since NASA launched the "Smart Wing" project in 1984, the research on intelligent deformable structures of aircraft has been widely carried out by research institutions, groups and individuals all over the world. From the initial concept of hingeless bending, it has been developed to the study of large-scale deformation of aircraft. The deformation of the aircraft mainly focuses on the deformation of the wing structure. The wing or wing structure is the main component of aircraft or missiles to generate lift, and its physical properties such as shape, size, and stiffness have a great influence on aircraft moving at high speed in airflow. Several studies have shown that tiny bumps or dips in aircraft wing structures can cause aerodynamic forces to redistribute across...

Claims

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Application Information

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IPC IPC(8): B64C3/00B64C3/18B64C3/26
Inventor 张博明于东梁军戴福洪赵海涛解维华
Owner HARBIN INST OF TECH
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