| 摘要: |
| 跨介质航行器是一种可在空中与水中两栖巡航并能自由穿越水气界面的新概念海空两栖无人运动平台，需要具备良好的入水和出水性能及较小的水下流体阻力。采用两种生物组合仿生的设计思想，利用全自动三维影像扫描仪获取具有优良入水性能的翠鸟头部和龙虱身体的形体特征点云数据，应用傅立叶级数拟合方法拟合特征曲线，设计了一种跨介质航行器流体动力外形，为减小航行器入水冲击载荷、降低水下航行阻力提供了设计方案。 |
| 关键词: 组合仿生 跨介质航行器 流体动力外形 翠鸟 龙虱 |
| DOI： |
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| 基金项目:国家自然科学基金（51575227；51875243） |
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| Biomimetic Design of Fluid Dynamic Shape for Cross-Media Vehicle |
| WU Zhengyang,ZHANG Chengchun,HE Yongsheng,BAO Yangchun,ZHENG Yihua |
| (Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, China) |
| Abstract: |
| Cross-media vehicle is a new concept of amphibious unmanned vehicle, which can cruise in the air and water, and can freely cross the water-air interface.The vehicle needs good water-entry and water-exit performance and less fluid resistance.Based on the idea of combination bionics design of two biological creatures, the body feature point cloud data of kingfisher head and diving beetle body which both with excellent water entry performance are obtained by using full-automatic 3D image scanner.By using the Fourier series fitting method to fit the characteristic curve, the hydrodynamic shape of the cross-media vehicle is designed.In this paper, a design scheme is provided to reduce the water entry impact load and the underwater navigation resistance of the vehicle. |
| Key words: Combinatorial biomimetic Cross-media vehicle Fluid dynamic shape Kingfisher Diving beetle |