新型零泊松比类蜂窝结构面内变形性能研究  

Study on In-Plane Deformation Performance of a Novel Zero Poisson’s Ratio Quasi-Honeycomb Structure

作　　者：廖学知 王洪波 李宝玉[1] 赵晓宁[1] LIAO Xue-zhi;WANG Hong-bo;LI Bao-yu;ZHAO Xiao-ning(China Academy of Launch Vehicle Technology,Beijing 100076,China;China Aerospace Science and Technology Corporation,Beijing 100048,China)

机构地区：[1]中国运载火箭技术研究院,北京100076 [2]中国航天科技集团有限公司,北京100048

出　　处：《强度与环境》2022年第3期1-7,共7页Structure & Environment Engineering

基　　金：国家自然科学基金(U20B200071)。

摘　　要：飞行器实现智能变形的物质基础是结构具有出色的面内变形性能。本文基于零泊松比蜂窝结构的面内力学特性,结合波纹结构出色的变形能力,提出了以波纹结构替代蜂窝壁的新型零泊松比类蜂窝结构形式,并结合理论建模与仿真分析的方法对其面内变形性能进行分析。结果表明该结构面内变形性能相对于六边形蜂窝结构具有有效提升;采用较小的蜂窝角、壁厚比以及较大的波纹度有利于获得具有更小等效刚度和更大应变放大系数的结构。该结果可为一维伸缩变形结构的设计与优化提供相应参考。The structure with excellent in-plane deformation performance is the material base for smart morphing aircraft.Based on the zero Poisson’s ratio honeycomb structure and the corrugated structure,a new zero Poisson’s ratio structure is proposed in this paper,and its in-plane deformation performance is analyzed by theoretical and finite element modeling.The results show that the in-plane deformation performance of the structure is improved effectively compared with the traditional honeycomb structure.Smaller cell angle,wall thickness ratio and larger corrugation ratios are beneficial to obtain structures with smaller equivalent stiffness and larger strain amplification coefficient.The results provide a useful theoretical basis and technical support for the design and optimization of morphing structure.

关 键 词：零泊松比 蜂窝结构 波纹结构 力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程] V417.4[航空宇航科学与技术—航空宇航推进理论与工程]