Simulation Analysis of Motion of Biomimetic Robotic Fish Driving Components
This article provides a detailed ADAMS motion simulation analysis of the motion states of the pectoral and caudal fins of bionic robotic fish.The article conducted simulation verification on the effects of different caudal fin joint swing angles and frequencies,pectoral fin swing angles,and pectoral fin linear extension motion on travel speed,as well as the effects of pectoral and caudal fin motion states on the motion state of released robotic fish.From the simulation results analysis,it can be concluded that a longer tail fin,higher swing frequency,and greater swing angle are more conducive to the speed of the robotic fish.However,the impact of swing frequency is non-linear,with a preferred swing frequency of 2.5Hz;The up and down swing angle of the pectoral fins has little effect on the walking speed;The linear extension motion of the pectoral fins will cause a backward motion state for the robotic fish.Combined with the movement of the tail fins,the forward and backward motion of the robotic fish can be achieved.At the same time,the greater the linear extension of the pectoral fins,the faster the frequency of internal and external expansion,and the faster the backward speed of the robotic fish.
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