零泊松比十字形混合蜂窝设计分析及其在柔性蒙皮中的应用

doi:10.7527/S1000-6893.2014.0090

材料工程与机械制造

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零泊松比十字形混合蜂窝设计分析及其在柔性蒙皮中的应用

程文杰¹, 周丽¹, 张平¹, 邱涛²

1. 南京航空航天大学机械结构力学及控制国家重点实验室, 南京 210016;
2. 沈阳飞机设计研究所, 沈阳 110035

收稿日期:2014-03-25 修回日期:2014-05-01 出版日期:2015-02-15 发布日期:2014-05-13
通讯作者: 周丽 Tel.: 025-84891722 E-mail: lzhou@nuaa.edu.cn E-mail:lzhou@nuaa.edu.cn
作者简介:程文杰男,硕士研究生。主要研究方向:变体飞机设计。Tel:025-84891722 E-mail:wjcheng@nuaa.edu.cn;周丽女,博士,教授,博士生导师。主要研究方向:结构健康监测、复合材料力学。Tel:025-84891722 E-mail:lzhou@nuaa.edu.cn;张平男,博士研究生。主要研究方向:智能材料结构、复合材料力学。Tel:025-84891722 E-mail:zhangping@nuaa.edu.cn;邱涛男,博士,研究员。主要研究方向:智能材料结构、气动弹性力学。Tel:024-26784201 E-mail:qt601@126.com
基金资助:
国家自然科学基金(11172128,51475228);江苏高校优势学科建设工程资助项目

Design and analysis of a zero Poisson's ratio mixed cruciform honeycomb and its application in flexible skin

CHENG Wenjie¹, ZHOU Li¹, ZHANG Ping¹, QIU Tao²

1. State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. Shenyang Aircraft Design and Research Institute, Shenyang 110035, China

Received:2014-03-25 Revised:2014-05-01 Online:2015-02-15 Published:2014-05-13
Supported by:
National Natural Science Foundation of China (11172128, 51475228); Priority Academic Program Development of Jiangsu Higher Education Institutions

摘要/Abstract

摘要：

柔性机翼变弯度/展/弦长方案需要蒙皮在面内具有一维大变形能力,并且在垂直平面方向能够提供足够的抗压和抗弯刚度。设计了一种零泊松比十字形混合蜂窝,支撑弹性胶膜构成柔性蒙皮结构。研究了十字形混合蜂窝的面内变形机理、蜂窝力学特性与单元形状参数的关系,针对蜂窝的面内单向变形能力进行了参数优化;将蜂窝结构等效为正交各向异性材料,研究了十字形混合蜂窝的面外抗弯能力及其影响因素;根据后缘变弯度机翼柔性蒙皮设计要求,研究了十字形混合蜂窝结构参数的适用性。结果表明这种蜂窝能够满足柔性蒙皮的使用要求,且质量轻、易驱动。

关键词: 柔性蒙皮, 蜂窝结构, 零泊松比, 面外抗弯刚度, 等效弹性模量

Abstract:

Variable camber/span/chord scheme for morphing flexible skin requires the skin to have the capacity of in-plane large deformation in one dimension and the ability to provide adequate out-of-plane bending and compressive rigidity. A zero Poisson's ratio mixed cruciform honeycomb is proposed and used as flexible skin design by covering silicone panel on its surface. The in-plane deformation mechanism of the honeycomb is theoretically analyzed, as well as the effect of the cell shape parameters on mechanical properties. Targeting the in-plane one-dimensional morphing capacity, the parameters of the honeycomb are optimized. The honeycomb structure is equivalent to an orthotropic material, and the resistance to bending out-of-plane and its influencing factors of the mixed cruciform honeycomb are studied. According to the design requirements of the variable camber trailing edge wing flexible skin, the applicability of the mixed cruciform honeycomb's structure parameter is studied. The results show that the designed honeycombs not only meet the operational requirement of the flexible skin but also have a light quality and small driving force.

Key words: flexible skin, honeycomb structures, zero Poisson's ratio, out-of-plane bending rigidity, equivalent elastic modulus

中图分类号:

程文杰, 周丽, 张平, 邱涛. 零泊松比十字形混合蜂窝设计分析及其在柔性蒙皮中的应用[J]. 航空学报, 2015, 36(2): 680-690.

CHENG Wenjie, ZHOU Li, ZHANG Ping, QIU Tao. Design and analysis of a zero Poisson's ratio mixed cruciform honeycomb and its application in flexible skin[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2015, 36(2): 680-690.

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E-mail：hkxb@buaa.edu.cn

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零泊松比十字形混合蜂窝设计分析及其在柔性蒙皮中的应用

Design and analysis of a zero Poisson's ratio mixed cruciform honeycomb and its application in flexible skin

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