Abstract
The seahorse relies on the undulatory motion of the dorsal fin to generate thrust, which makes it possess quite high maneuverability and efficiency, and due to its low volume of the dorsal fin, it is conducive to the study of miniaturization of the driving mechanism. This paper carried out a study on the undulatory motion mechanism of the seahorse's dorsal fin and proposed a dynamic model of the interaction between the seahorse's dorsal fin and seawater based on the hydrodynamic properties of seawater and the theory of fluid-structure coupling. A simulation model was established using the Fluent software, and the 3D fluid dynamic mesh was used to study the undulatory motion mechanism of the seahorse's dorsal fin. The effect of the swing frequency, amplitude, and wavelength of the seahorse's dorsal fin on its propulsion performance was studied. On this basis, an optimized design method was used to design a bionic seahorse's dorsal fin undulatory motion mechanism. The paper has important guiding significance for the research and miniaturization of new underwater vehicles.
Highlights
With the increasing demand for natural resources in modern society, the speed of exploitation of terrestrial resources is difficult to meet people’s needs for material life
The seahorse relies on the undulatory motion of the dorsal fin to generate thrust, which makes it possess quite high maneuverability and efficiency, and due to its low volume of the dorsal fin, it is conducive to the study of miniaturization of the driving mechanism
This article has carried out research on the undulatory motion mechanism of the seahorse’s dorsal fin
Summary
With the increasing demand for natural resources in modern society, the speed of exploitation of terrestrial resources is difficult to meet people’s needs for material life. The ocean, which accounts for 71% of the entire surface of the earth, has become a treasure trove of resources for all countries. There are abundant fishery resources and mineral resources and sufficient energy resources, such as large oil fields and combustible ice. There are abundant fishery resources and mineral resources and sufficient energy resources, such as large oil fields and combustible ice Whether it is economic or military, the treasure of the ocean is attractive enough, and the rapid development of underwater vehicles will become inevitable. The seahorse relies on the undulatory motion of the dorsal fin to generate thrust, which makes it possess quite high maneuverability and efficiency, and due to its low volume of the dorsal fin, it is conducive to the study of miniaturization of the driving mechanism. This article has carried out research on the undulatory motion mechanism of the seahorse’s dorsal fin
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