Multi-body dynamics modelling on a self-propelled pufferfish with its application in AUV

Li, Ruoxin and Xiao, Qing and Li, Lijun and Liu, Hao (2016) Multi-body dynamics modelling on a self-propelled pufferfish with its application in AUV. In: The 10th Symposium on High-Performance Marine Vehicles HIPER’ 16 (2016), 2016-10-17 - 2016-10-19.

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    Abstract

    We developed a Computational Fluid Dynamics (CFD) based tool coupled with a Multi-Body Dynamics (MBD) technique to investigate a self-propelled pufferfish motion within a still water environment. The 3D pufferfish model consists of body, caudal, dorsal and anal fins. The locomotion of fish is entirely determined by the computation and fully induced by the oscillation motion of fish fins. The influence of the phase angle difference on the fish swimming behaviour is examined by varying the angle difference between the caudal, dorsal, and anal fins. The swimming displacement, hydrodynamic force and the wake pattern are analysed.