飞行角度及弯曲折叠对仿鸟扑翼飞行器影响分析

doi:10.16182/j.issn1004731x.joss.201805020

系统仿真学报 ›› 2018, Vol. 30 ›› Issue (5): 1781-1786.doi: 10.16182/j.issn1004731x.joss.201805020

飞行角度及弯曲折叠对仿鸟扑翼飞行器影响分析

杨永刚, 苏汉平, 顾新冬, 陈燕青

中国民航大学航空工程学院,天津 300300

收稿日期:2016-06-14 修回日期:2016-07-29 出版日期:2018-05-08 发布日期:2019-01-03
作者简介:杨永刚(1978-),男,吉林四平,博士,副教授,研究方向为仿生扑翼机器人技术;苏汉平(1989-),男,湖北黄冈,硕士生,研究方向为扑翼飞行器设计与气动特性分析。
基金资助:
中央高校基本科研业务费(3122013c010)

Numerical Simulation Analysis of the Effects of Flight Angle and Bend-fold on Bird-like Flapping-wing Air Vehicle

Yang Yonggang, Su Hanping, Gu Xindong, Chen Yanqing

School of Aeronautics Engineering, Civil Aviation University of China, Tianjin 300300, China

Received:2016-06-14 Revised:2016-07-29 Online:2018-05-08 Published:2019-01-03

摘要/Abstract

摘要： 针对鸟类扑翼飞行运动多参数耦合影响,参照鸟外形尺寸构建仿鸟扑翼飞行器的三维模型,建立扑翼“挥拍-扭转-弯曲折叠”多自由度运动模型,以计算流体力学仿真软件XFlow为平台,分别对机身飞行角度和扑翼弯曲折叠角两方面进行仿真分析。结果表明：机身在不同飞行角度的情况下,产生的升力系数和阻力系数的峰值不同;飞行角度0°时平均阻力系数最小,平均升阻比系数最大,更有利于扑翼飞行器平飞飞行;扑翼在弯曲折叠作用下,外扑翼上表面形成剧烈涡流和负压,有利于提高升力系数,对阻力系数影响较小。

关键词: 仿鸟扑翼飞行器, 飞行角度, 扑翼弯曲折叠, XFlow, 气动特性分析

Abstract: Aiming at the multi-parameter coupling problems of flapping-wing flight of birds, a 3D model of bird-like flapping-wing air vehicle (FAV) is established based on overall dimensions of bird. A multi-degree-of-freedom motion model of “swing-torsion-bending and folding” is built. The XFlow is used to analyze the effects of flight angle and flapping-wing bending-folding. Research results show that peak values of lift coefficient and drag coefficient change with different flight angles; at the zero flight angle, minimum mean drag coefficient and maximum lift-drag ratio will be achieved and avail to level flight. Caused by the bending-folding effect, violent vortex and negative pressure are produced on the upper surface of outer wings, which will improve lift-drag ratio and impact drag coefficient less.

Key words: bird-like flapping-wing air vehicle, flight angle, bending-folding, XFlow, aerodynamic characteristics analysis

中图分类号:

V224

杨永刚, 苏汉平, 顾新冬, 陈燕青. 飞行角度及弯曲折叠对仿鸟扑翼飞行器影响分析[J]. 系统仿真学报, 2018, 30(5): 1781-1786.

Yang Yonggang, Su Hanping, Gu Xindong, Chen Yanqing. Numerical Simulation Analysis of the Effects of Flight Angle and Bend-fold on Bird-like Flapping-wing Air Vehicle[J]. Journal of System Simulation, 2018, 30(5): 1781-1786.

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飞行角度及弯曲折叠对仿鸟扑翼飞行器影响分析

Numerical Simulation Analysis of the Effects of Flight Angle and Bend-fold on Bird-like Flapping-wing Air Vehicle

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