微扑翼飞行器的尺度律研究与仿生设计  被引量:10

Bionic Design and Scaling Laws for Flapping-wing MAVs

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作  者:刘岚[1] 方宗德[1] 侯宇[1] 吴立言[1] 

机构地区:[1]西北工业大学,西安710072

出  处:《中国机械工程》2005年第18期1613-1617,共5页China Mechanical Engineering

基  金:国防基础科研项目(K1800060109);西北工业大学博士创新基金资助项目(M016103)

摘  要:通过分析飞行动物扑翼飞行中的各种物理参量对飞行特性的影响,得出了能为微扑翼飞行器设计所利用的规律。根据几何相似原理,利用基于量纲的尺度分析从本质上揭示了扑翼飞行中各种物理参量之间的相互联系。分析发现,几何尺度对微扑翼飞行器在翼展、翼面积、翼载荷、展弦比和扑翼频率等总体设计参数的影响趋势和对飞行动物相应物理量的影响趋势一致,但在具体量值上有所差异。根据扑翼飞行动物统计分析得到的尺度律设计并制作出了实际可飞的微扑翼飞行器。Some valuable principles for the configuration of flapping-wing Micro Air Vehicles (MAVs) were presented by assessing the effects of different parameters, such as wing area and wing span aspect ratio, on the flight characteristics of flapping flight animals. Based on the assumption of geometric similarity among birds, the relations between different physical quantities such as wing span, wing area, wing loading, aspect ratio and wing beat frequency, were summarized via the dimensional arguments. Then the scaling laws for the MAVs with flapping wings were induced. In the foundation of the scaling laws, a bionic design method for flapping-wing MAVs was studied. Finally a lightweight flapping wing MAV was build and has been demonstrated successfully free flights with flight duration ranges from 10s to 21s. The modeling and analysis method, as well as the conclusions are suitable for design and analysis of flapping-wing MAVs.

关 键 词:微型飞行器 扑翼 仿生设计 尺度律 几何相似 

分 类 号:TB17[生物学—生物工程]

 

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