Quantitative analysis of the morphing wing mechanism of raptors: Analysis methods, folding motions, and bionic design of Falco Peregrinus  

作　　者：Di Tang Xipeng Huang Jinqi Che Weijie Jin Yahui Cui Yangjun Chen Yuxiao Yuan Zhongyong Fan Weiwei Lu Siyu Wang Yin Yang Dawei Liu 

机构地区：[1]College of Mechanical Engineering,Zhejiang University of Technology,Hangzhou 310014,China [2]Affiliated HangZhou XiXi hospital,Zhejiang University School of Medicine,Hangzhou 310023,China [3]Zhejiang Museum of Natural History,Hangzhou 310014,China [4]High Speed Aerodynamic Institute,China Aerodynamics Research and Development Center,Mianyang 621000,China

出　　处：《Fundamental Research》2024年第2期344-352,共9页自然科学基础研究（英文版）

基　　金：supported by National Natural Science Foundation of China(52175279,51705459);Natural Science Foundation of Zhejiang Province(LY20E050022).

摘　　要：Raptors can change the shape and area of their wings to an exceptional degree in a fast and efficient manner,surpassing other birds,insects,or bats.Some researchers have focused on the functional properties of muscle skeletons,mechanics,and flapping robot design.However,the wing motion of the birds of prey has not been measured quantitatively,and synthetic bionic wings with morphing abilities similar to raptors are far from reality.Therefore,in the current study,a 3D suspension system for holding bird carcasses was designed and fabricated to fasten the wings of Falco Peregrinus with a series of morphing postures.Subsequently,the wing skeleton of the falcon was scanned during extending motions using the computed tomography(CT)approach to obtain three consecutive poses.Subsequently,the skeleton was reconstructed to identify the contribution of the forelimb bones to the extending/folding motions.Inspired by these findings,we propose a simple mechanical model with four bones to form a wing-morphing mechanism using the proposed pose optimisation method.Finally,a bionic wing mechanism was implemented to imitate the motion of the falcon wing—divided into inner and outer wings with folding and twisting motions.The results show that the proposed four-bar mechanism can track bone motion paths with high fidelity.

关 键 词：Falco Peregrinus RAPTOR Suspension system CT scan Bionic wings Four-bar mechanism 

分 类 号：V21[航空宇航科学与技术—航空宇航推进理论与工程]