飞行器旋转重入变形超结构骨架力学特性分析
作者:
作者单位:

1.燕山大学 河北省并联机器人与机电系统实验室, 河北 秦皇岛 066009 ;2.哈尔滨工业大学 机器人技术与系统国家重点实验室, 黑龙江 哈尔滨 150001

作者简介:

杨慧(1986—),女,安徽亳州人,副教授,博士,博士生导师,E-mail:huiyang_0431@163.com

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中图分类号:

V250.1

基金项目:

国家自然科学基金资助项目 (52575036,52375028,52192631);河北省自然科学基金资助项目(E2024203052,E2024203105);河北省研究生创新基金资助项目(CXZZSS2024030)


Analysis of mechanical properties of the rotational re-entrymetastructures skeleton of the aircraft
Author:
Affiliation:

1.Parallel Robot and Mechatronic System Laboratory of Hebei Province, Yanshan University, Qinhuangdao 066009 , China ;2.State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001 , China

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    摘要:

    空天飞行器变形翼在后掠、变弯度和扭转变形时需要骨架机构实现大变形,为此提出一种具有可调弹性参数的旋转重入超结构。旋转重入超结构由内凹八边形旋转90°及外伸韧带构成,通过外伸直臂韧带的空间拓扑填充策略构建翼型截面,形成具备变形能力的骨架构型。基于莫尔理论建立旋转重入超结构沿空间三方向的弹性模量、泊松比的理论模型。用ANSYS软件构建旋转重入变形结构的有限元模型,3D打印加工5个旋转重入变形结构的样机。将理论、仿真与实验结果分别进行对比,沿x、y和z向的泊松比最大相对误差绝对值为10.22%,由此表明理论模型和仿真模型的准确性。分析几何参数对超结构弹性参数影响,发现长宽比和结构角度对泊松比力学参数影响较大,该研究可为空天飞行器变形翼骨架应用提供理论基础。

    Abstract:

    To achieve swept-back, variable camber, and torsional deformation of the aircraft′s morphing wing, a rotating re-entry superstructure with adjustable elastic parameters was proposed. The rotational re-entrant metastructure was composed of an inwardly concave octagon rotated 90° and extended ligaments. The wing section was constructed through the spatial topological filling strategy of the extended straight arm ligaments, forming a bone architecture with deformation capability. Based on the Mohrs theory, a theoretical model of the relative elastic modulus and Poissons ratio of the rotational re-entry metastructures along three directions in space was established. The finite element model of the rotational re-entry metastructures were established by ANSYS software, and five rotational re-entry metastructures prototypes were processed by 3D printer technology. The theoretical, simulation and experimental results were compared respectively. The maximum absolute relative error of Poissons ratio along the x, y and z directions is 10.22%, indicating the accuracy of the theoretical model and the simulation model. The effects of geometric parameters on the elastic parameters of metastructures were analyzed, and it is found that the aspect ratio and the structural angle have a great influence on the mechanical parameters of Poissons ratio, which can provide a theoretical basis for the application of morphing wing skeleton of aircraft.

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杨慧, 刘瀚孺, 王岩, 等. 飞行器旋转重入变形超结构骨架力学特性分析[J]. 国防科技大学学报, 2026, 48(1): 262-273.

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  • 收稿日期:2025-01-13
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  • 在线发布日期: 2026-01-30
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