在对甲虫鞘翅外形曲面重构和断面微观结构特征分析的基础上,设计、制备了一种仿甲虫鞘翅轻质结构曲面夹心板
董本正
仿鞘翅轻质曲面夹心板结构的设计及其力学性能研究[EB/OL]
北京:中国科技论文在线
在此基础上,在相同结构尺寸下将仿生曲面夹心板与平板夹心结构进行力学性能比较,结果表明所设计的仿鞘翅轻质曲面夹心板具有更优越的力学性能
) Abstract: Beetles elytra is an excellent natural composite material, with thin shell, light weight, high strength and toughness, fracture resistance,damage self-healing, and hydrophobic properties
In this paper, a three-dimensional laser scanner is applied to obtain the point cloud data of beetle's elytra, and reverse engineering technology was used to reconstruct the elytra surface
Based on surface reconstruction and the microstructure of the cross-section of the beetle's elytra, a kind of bio-inspired curved lightweight sandwich structure was designed and built with a 3D printer
The mechanical properties of the bio- inspired structure was analyzed using the finite element method, and an experiment on the structure samples was carried out to verify the effectiveness of the finite element method
In addition, under the same dimension size and same core structure, the mechanical property of the curved structure was compared to that of plane structure with FEM
Results show that the bio-inspired curved lightweight sandwich structure has higher bearing capacity than the plane sandwich structure
Keywords: bio-inspired design
DONG Benzheng ( Institute of bio-inspired structure and surface engineering,Nanjing University of Areonautics and Astronautics, Nanjing 210016
董本正 ( 南京航空航天大学仿生结构与材料防护研究所,南京 210016
运动仿生学、结构动态优化设计及其计算机辅助工程等研究工作