基于等边Bennett机构的变形翼机构设计与分析  

Design and analysis of morphing wing mechanism based on equilateral Bennett mechanism

作　　者：田大可 张珺威 金路[2] 刘荣强[3] 雷宏强 崔锡赫 TIAN Dake;ZHANG Junwei;JIN Lu;LIU Rongqiang;LEI Hongqiang;CUI Xihe(School of Mechanical Engineering,Shenyang Jianzhu University,Shenyang 110168,China;School of Civil Engineering,Shenyang Jianzhu University,Shenyang 110168,China;National Key Laboratory of Aerospace Mechanism,Harbin Institute of Technology,Harbin 150001,China)

机构地区：[1]沈阳建筑大学机械工程学院,沈阳110168 [2]沈阳建筑大学土木工程学院,沈阳110168 [3]哈尔滨工业大学宇航空间机构全国重点实验室,哈尔滨150001

出　　处：《北京航空航天大学学报》2025年第3期742-752,共11页Journal of Beijing University of Aeronautics and Astronautics

基　　金：国家自然科学基金联合基金(U2341237);宇航空间机构全国重点实验室开放课题;辽宁省教育厅基本科研项目(LJ222410153096,JYTMS20231592)。

摘　　要：变体飞行器是一种通过变形机构改变自身气动外形,以适应多种飞行环境与任务要求的新概念飞行器,在航空航天、军事侦察等领域具有重要的应用价值,是未来飞行器研究的前沿与热点。针对变体飞行器广空域、宽速域等新的发展需求,基于等边Bennett机构提出一种具有空间多回路闭链特征的展向弯曲变形翼机构。研究等边Bennett机构的几何特性,提出基于等边Bennett机构的多回路闭环变形翼机构设计方案;采用约束螺旋求解法对变形翼机构自由度进行求解,基于D-H坐标变换法建立运动学模型;建立机构三维模型及虚拟样机,并进行运动学仿真验证,制作样机并进行实验。研究结果表明:所提的变形翼机构仅需一个动力源即可驱动机构运动,结构简单、模块化率高;能够实现各零部件间的准确连接及预期的展向弯曲变形动作。研究成果为新型变体飞行器变形翼的基础研究及工程应用提供了借鉴与参考。Morphing aircraft is a new concept vehicle that changes its aerodynamic shape by a morphing mechanism to adapt to various flight environments and mission requirements,which has important application value in aerospace,military reconnoitre,and other fields and is the frontier and hot spot of future vehicle research.In response to the new development needs of wide airspace and wide speed domain of the morphing aircraft,a spanwise bending morphing wing mechanism with a multi-closed-loop space mechanism based on the equilateral Bennett mechanism was proposed.Firstly,the geometric characteristics of the equilateral Bennett mechanism were studied,and the design scheme of the multi-closed-loop morphing wing mechanism based on the equilateral Bennett mechanism was proposed.Secondly,the constrained spiral solution method was used to solve the degrees of freedom of the morphing wing mechanism,and the kinematic model was established based on the D-H coordinate transformation method.Then,the 3D model and virtual prototype of the mechanism were established,and the kinematic simulation was carried out to verify the above model.The prototype was made,and the experiment was carried out.The research results show that the proposed morphing wing mechanism needs only one power source to drive the mechanism movement,with a simple structure and high modularity rate,and the proposed morphing wing mechanism can realize the accurate connection between the parts and the expected spanwise bending action.The research results provide a reference for the basic research and engineering application of morphing wings for new types of morphing aircraft.

关 键 词：变体飞行器 变形翼 模块化结构 空间过约束机构 运动学分析 

分 类 号：V224[航空宇航科学与技术—飞行器设计]