Design and analysis of morphing wing skeleton based on tetrahedral element

被引：0
|
作者：
Xiao H. [1 ]
Guo H. [1 ]
Zhang D. [1 ]
Yang G. [1 ]
Liu R. [1 ]
Lou Y. [2 ]
Li B. [2 ]
机构：
[1] State Key Laboratory of Robotics and Systems, Harbin Institute of Technology, Harbin
[2] Department of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen, ShenZhen
来源：
Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica | 2022年 / 43卷 / 07期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
deformation mechanism; kinematic analysis; mechanical analysis; morphing wing skeleton; tetrahedron element;
D O I：
10.7527/S1000-6893.2021.25391
中图分类号：
学科分类号：
摘要：
Variable configuration aircraft are of strategic significance in both military and civil fields. This study designs a morphing wing mechanism with characteristics of multi degree of freedom and distributed drive based on the tetrahedral element. Through comparative analysis of multiple schemes, the basic elements of the morphing wing mechanism are determined, a spherical joint which can realize the connection and rotation of adjacent tetrahedrons is designed, and the parametric analysis of the component and spherical joint is carried out. Kinematic analysis of the morphing wing mechanism is conducted based on the motion influence coefficient method, the mechanical properties of the deformation mechanism analyzed based on the finite element method and theoretical analysis, the driving parameter model including out-of-plane loads and skeleton gravity established, and the static loads of different actuators analyzed. Finally, a prototype is developed, and the multi degree of freedom deformation functions, such as variable sweep, bending and torsion, are verified by experiments. © 2022 AAAS Press of Chinese Society of Aeronautics and Astronautics. All rights reserved.
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