Experimental Study on the Effect of Increased Downstroke Duration for an FWAV with Morphing-coupled Wing Flapping Configuration  

作　　者：Ang Chen Bifeng Song ZhiheWang Kang Liu Dong Xue Xiaojun Yang 

机构地区：[1]School of Aeronautics,Northwestern Polytechnical University,Xi'an 710072,China [2]Harbin Institute of Technology,Shenzhen 518055,China

出　　处：《Journal of Bionic Engineering》2024年第1期192-208,共17页仿生工程学报（英文版）

基　　金：supported by National Natural Science Foundation of China under Grants No.52175277 and 12272318,and ND Basic Research Funds under Grants G2022WD;was supported in part by the Basic Research Program of Shenzhen under GrantJCYJ20190806142816524.

摘　　要：This paper is based on a previously developed bio-inspired Flapping Wing Aerial Vehicle(FWAV),RoboFalcon,which can fly with a morphing-coupled flapping pattern.In this paper,a simple flapping stroke control system based on Hall effect sensors is designed and applied,which is capable of assigning different up-and down-stroke speeds for the RoboFalcon platform to achieve an adjustable downstroke ratio.The aerodynamic and power characteristics of the morphing-coupled flapping pattern and the conventional flapping pattern with varying downstroke ratios are measured through a wind tunnel experiment,and the corresponding aerodynamic models are developed and analyzed by the nonlinear least squares method.The relatively low power consumption of the slow-downstroke mode of this vehicle is verified through outdoor flight tests.The results of wind tunnel experiments and flight tests indicate that increased downstroke duration can improve aerodynamic and power performance for the RoboFalcon platform.

关 键 词：Flapping wing aerial vehicle(FWAV) Downstroke ratio Bio-inspired design Morphing-coupled flapping 

分 类 号：V276[航空宇航科学与技术—飞行器设计]