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Design and analysis of "figure-8" trajectory flapping wing mechanism based on crank rocker

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DOI: 10.23977/jemm.2022.070207 | Downloads: 7 | Views: 112


Shan Tang 1


1 College of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China

Corresponding Author

Shan Tang


In order to improve the flight performance of flapping-wing aircraft, a new type of flapping-wing mechanism based on a crank-rocker mechanism was designed by the flight motion characteristics of small and medium-sized birds. Firstly, the kinematics model of the flapping-wing aircraft drive mechanism is established through kinematics analysis. Then, the simulation analysis model of the flapping-wing mechanism is established in the ADAMS simulation software to verify the theoretical analysis. The results show that the designed driving mechanism can realize flapping and twisting movements through a single degree of freedom drive. The upper maximum flapping angle is 28.07°, the lower maximum flapping angle is 25.02°, and the maximum torsion angle is 2.40°. The output "8" shape trajectory is the same as the wingtip trajectory when the creature is flying, and has good aerodynamic performance; the kinematic parameters obtained from the simulation are consistent with the theoretical calculation, which verifies the correctness of the theoretical calculation. 


crank rocker, flapping wing mechanism, figure-8 trajectory


Shan Tang, Design and analysis of "figure-8" trajectory flapping wing mechanism based on crank rocker. Journal of Engineering Mechanics and Machinery (2022) Vol. 7: 48-58. DOI:


[1] Pornsin-Sirirak T N, Tai Y C, Ho C M, et al. Microbat: A Palm-Sized Electrically Powered Ornithopter [J]. proceedings of the nasa/jpl workshop on biomorphic robotics, 2001.
[2] XU Y C, ZONG G H, BI S S, et al. Design and analysis of a spatial crank-rocker flapping-wing mechanism [J]. Journal of Aerospace Power, 2009,24(2): 204-208.
[3] Sitti M, PZT actuated four-bar mechanism with two flexible links for micromechanical flying insect thorax [C]. IEEE International Conference on Robotics & Automation. IEEE, 2003. 
[4] RUAN L H. Structure Design and Kinematic Research of Bionic Flapping-wing Flying Robot [D]. Wuhan University of Science and Technology,2016.
[5] ZHOU Q S. Design and Aerodynamic Analysis of A Bioinspired Flapping Wing Air Vehicle [D]. Harbin Institute of Technology,2013.
[6] ZHANG H M, YANG W Q. Investigation of "0"-Figure and "8"-Figures Wingtip Path Effect on Aerodynamic Performance of Micro Flapping-wing [J]. Advances in Aeronautical Science and Engineering, 2016,7(01):44-50.
[7] ZHU B L, ANG H S, GUO L. Design and Analysis of New3D Insect-Like Flapping-Wing Mechanism [J]. Journal of Nanjing University of Areonautics and Astronautics, 2007(04):457-460.
[8] JIANG S, HAO Y P, LI L, et al. Design of Flapping Machine for the "8" Zigzag Movement Based on Spatial Linkage Mechanism [J]. Machine Tool and Hydraulics, 2019,47(13):76-80.
[9] JIANG J Q, XIE J, CHEN Y. On the design of gerared five- bar mechanism to produce curves of figure eight type [J]. Mechanical Design and Manufacturing, 2008(07):115-116.
[10] ZHANG R K, HE W, WANG X S, et al. Optimal Design of RSSR Quick-return Bionic Flapping-wing Mechanism in Offset Space [J/OL] . Mechanical Science and Technology for Aerospace Engineering, 2022,41(4):653-658.

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