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Aircraft wing compositely driven by shape memory alloy and motor

A memory alloy and wing technology, applied in the field of aircraft wings, can solve problems such as unpublished documents, and achieve the effects of light weight, weight reduction and efficiency improvement

Inactive Publication Date: 2019-04-05
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no public literature on the composite driving mode that combines SMA drivers with other types of driving methods.

Method used

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  • Aircraft wing compositely driven by shape memory alloy and motor
  • Aircraft wing compositely driven by shape memory alloy and motor
  • Aircraft wing compositely driven by shape memory alloy and motor

Examples

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with accompanying drawing.

[0019] Such as Figure 1 to Figure 4 As shown, the present invention includes a fixed wing section 1, a deflecting wing section 2, a deflecting shaft axis 3, a rotary joint 4, a wing pitch axis 5, a corrugated skin 6, an SMA wire 7, a connecting terminal 8, a wing rib 9, and a bearing seat 10. Worm gear 11, stepper motor 12, common skin 13, pulley component 14, wiring board 15, worm 16, bushing 17 and coupling 18, wherein, the fixed wing section 1 is fixed on the wing pitch axis 5 by bolts Above, the deflecting wing segment 2 is connected to the fixed wing segment 1 through two rotating joints 4, the two rotating joints 4 are respectively located on both sides of the wing pitch axis 5, and the axes of the two rotating joints 4 are on the same deflection axis axis 3 Above, the deflection shaft axis 3 is parallel to the fuselage axis. The outside of the connection between t...

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Abstract

The invention discloses an aircraft wing compositely driven by a shape memory alloy and a motor. The aircraft wing compositely driven by the shape memory alloy and the motor comprises a fixed wing section and a tilt wing section; the fixed wing section is fixed on a wing pitching shaft; the tilt wing section is connected with the fixed wing section through a rotating joint; a skin covers the exterior of the connecting part of the fixed wing section and the tilt wing section; multiple SMA wires are arranged on one side of the rotating joint; one ends of the SMA wires are fixed on a wiring boardthrough SMA wire wiring terminals; the other ends of the SMA wires are fixed on a pulley in a wing rib at the top end of the tilt wing section; the wiring board is fixed at the tail end of the wing pitching shaft; and a transmission mechanism is connected to the wing pitching shaft. According to the aircraft wing compositely driven by the shape memory alloy and the motor, by using a shape memoryeffect of the SMA, up-and-down tilting of a tail fin is realized by using a differential driving mode; and meanwhile, by using a motor and a worm and gear system, the changing of an attack angle of the whole tail fin is realized; a driving structure has the advantages of small volume, light weight, large efficiency ratio and high transmission efficiency; and meanwhile, the weight of a driving mechanism is reduced.

Description

technical field [0001] The invention relates to an aircraft wing, in particular to an aircraft wing compound-driven by a shape memory alloy and a motor. Background technique [0002] Shape memory alloys were discovered in 1932 It was found that the concept of "shape memory" was first described by Vernon in 1941, but it was not until 1962 that William Buehler and Frederick Wang of the US Naval Ordnance Laboratory revealed the shape memory effect in nickel-titanium (NiTi) alloys. The importance is gradually becoming known. With its unique shape memory effect, superelastic effect, small weight, high heat conversion efficiency, excellent physical and chemical properties and biocompatibility, NiTi-based shape memory alloy has made great achievements in the fields of engineering, control, machinery, medical treatment and energy. more and more widely used. [0003] As a smart material, shape memory alloys are used as sensors and actuators, which mainly utilize the shape memory ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C3/38B64C5/10
CPCB64C3/38B64C5/10
Inventor 徐志伟
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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