Structure Design And Experimental Research Of Biomimetic Rays(Academic)

Due to the reality of the increasing depletion of land resources and the expandingneeds of human activity space, human began to turn to develop and explore the ocean,which will greatly promote the development of underwater propulsion. The pectoralfin-propelled fish, representative by rays, are characterized by extraordinary superiorityin concealment and maneuverability and bionics research on batoid can not match thepractical needs of reality. This article will choose batoid as the bionic object and designa bionic pectoral fin-propelled propulsion system to verify the feasibility and superiorityof fin-propelled propulsion by experiment.This paper will design a bionic-batoid experimental device on the basis of existingbionic research on batoid which contains the existing physical model, kinematic modeland dynamic model, focused on solving the key issues of structural design, waterproofseal, the calculation of gravity and buoyancy. The experimental propulsion system canmaintain a proper position in the water and realize the bionic movement of batoid.This paper, on the basis of existing results of hydrodynamic simulation on batoid,design experiments to analyze the effect of the key parameters such as frequency offluctuation, wave number and amplitude of fluctuation on performance of the bionicbatoid and investigate the influence of key parameters on key performance indicatorssuch as the speed of propulsion, the propulsion of system, the turning radius and theaverage velocity of turning angular. The research in this paper verify the correctness ofthe simulation results and prove the feasibility and superiority of fin-propelledpropulsion.