Design of Variable Thickness Wing Based on Two-way Shape Memory Alloy Drive

2021 2nd International Conference on Intelligent Design (ICID) Pub Date : 2021-10-01 DOI:10.1109/ICID54526.2021.00026

Zijing Liu, Ning Dai, Hongtao Wang, Liming Wu

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引用次数: 1

Abstract

As military reconnaissance, environmental monitoring, medical rescue and other fields have increasingly higher requirements for aircraft, traditional fixed-wing aircraft can no longer meet these high requirements. To solve this problem, a variable thickness wing with simple structure and rapid deformation is proposed. Based on the requirements of variable thickness wing drive, a self-resetting flexible actuator composed of cylindrical helical compression spring and two-way shape memory alloy spring is designed. The deformation of the wing is predicted by finite element simulation, and the size of shape memory alloy in flexible actuator is designed under the guidance of the corresponding net output force. After the design of variant wing and the construction of experimental platform, the thickness deformation experiment of wing is carried out. The experimental results show that the relative thickness of the wing is increased by about 2.0%, which effectively improves the flight performance of the aircraft, and the wing can be stably restored to its original state.

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基于双向形状记忆合金驱动的变厚度机翼设计

随着军事侦察、环境监测、医疗救援等领域对飞机的要求越来越高，传统的固定翼飞机已经不能满足这些高要求。为了解决这一问题，提出了一种结构简单、变形快的变厚度机翼。根据变厚机翼驱动的要求，设计了一种由圆柱螺旋压缩弹簧和双向形状记忆合金弹簧组成的自复位柔性驱动器。通过有限元仿真对机翼变形进行预测，并在相应的净输出力指导下对柔性执行器中形状记忆合金的尺寸进行设计。在完成变翼设计和实验平台搭建后，进行了变翼厚度变形实验。实验结果表明，机翼的相对厚度增加了约2.0%，有效地提高了飞机的飞行性能，并且机翼可以稳定地恢复到原始状态。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2021 2nd International Conference on Intelligent Design (ICID)

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