Optimization Design and Analysis of Bionic Flapping Wing Driving Mechanism Based on Space RRRRRR Mechanism
In order to improve the flight performance of the bionic flapping wing aircraft by outputting the same spatial"8"trajectory as that of the biological flying,so as to improve the flight performance of the bionic flapping wing aircraft,a new flapping wing driving mechanism based on the space RRRRRR mechanism was designed based on the flight motion characteristics of insects.Firstly,through the kinematic analysis,the kinematic analysis model of the space RRRRRR flapping wing drive mechanism of the flapping wing aircraft was established.Then,according to the characteristics of the movement of the biological flight wing,a mechanism optimization model was established to optimize the design of the driving mechanism,and the mechanism parameters that were conducive to the flapping wing flight of the aircraft were obtained.Finally,according to the optimized size parameters,a three-dimensional model of the insect-like miniature flapping wing aircraft was established,and the output motion of the driving mechanism was obtained in the ADAMS software,which verified the correctness of the theoretical analysis.The results show that the flapping wing drive mechanism obtained by the optimized design can realize the flutter-torsional motion,and the output upper flutter angle of the flapping wing drive mechanism is 34.80° and the lower flutter angle is-29.16°.The output torsion angle ranges from-14.88°~15.04°;the output spatial"figure 8"trajectory is the same as the wingtip trajectory of insect flight.