Design and Simulation Analysis of Bionic Devil Fish

Abstract

On the basis of bionics, a kind of robot fish driven by shape memory alloy is designed. The movement of devil fish is analyzed, and then the body structure is designed after the simplification of the body structure. Then the performance of SMA is analyzed, and the internal driving structure is designed. The model of devil's fish is built by CATIA, and then it is simulated by CFD-FLUENT. The 3D motion of pectoral fin is controlled by the dynamic grid technology of the software and the UDF program. Finally, according to the simulation results, the best parameters are determined by comparing the influence of each parameter on the swimming performance of devil fish.