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可变形蜂窝结构设计与力学分析

Structural design and mechanical analysis of morphing honeycomb structure

中文摘要英文摘要

变形蜂窝与柔性基体的复合是可变形蒙皮结构的重要发展方向。本文应用梁理论推导了可变形蜂窝结构在水平拉力作用下轴向形变量的解析表达式。根据形变量、材料弹性极限和弹性模量等要求,给出了可变形蜂窝结构的一个重要设计参数--蜂窝角的合理取值范围;并和有限元结果进行了对比分析。结果表明:蜂窝角的设计空间取决于材料弹性极限与弹性模量之间的比值,且解析解与有限元结果具有很好的吻合性。针对不同的设计要求,给出了“同样材料实现不同的形变量”、“同样蜂窝形状实现不同的形变量”和“同样材料同样蜂窝形状实现不同形变量”的结构设计方案。本文的研究成果可直接为可变形蒙皮结构设计提供必要的理论依据和技术支持。

he combination of morphing honeycomb and flexible matrix is the main research direction of morphing skin. The analytic expressions of equivalent tensile strain of the morphing honeycomb were been derivated by the use of beam theory in this paper. The design space of honeycomb angle, which is the key parameter for morphing honeycomb, is given according to the requirements such as tensile strain, elastic limit and elastic modulus. The choice of honeycomb angle is very relative with the ratio of elastic limit and elastic modulus of the material which makes of morphing honeycomb. The analytic results compare very well with the FEM results. The structures are designed for different cases such as the different elongation with the same material, the different elongation with the same geography and the different elongation with the same material and geography. This research results will provide useful technical support for morphing skin structure.

尹维龙

工程基础科学材料科学航空航天技术

变体飞行器蜂窝结构梁模型蜂窝角有限元模型

morphing aircrafthoneycomb structurebeam modelhoneycomb angleFEM

尹维龙.可变形蜂窝结构设计与力学分析[EB/OL].(2011-07-19)[2025-08-02].http://www.paper.edu.cn/releasepaper/content/201107-278.点此复制

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