Motion drag reduction shell of unmanned underwater vehicle

Abstract

According to a motion drag reduction shell of anunmanned underwater vehicle, the structure is simple and light, the maneuverability is extremely high, and a good drag reduction effect can be achieved in various complex marine environments; silicone rubber has excellent cold resistance, heat resistance and aging resistance and good thermal conductivity, and can adapt to various marine working environments; a solution in the interlayer of the shell comes from external seawater, and a liquid storage container and an additional solution do not need to be additionally arranged in the shell, so that space and cost are saved; the specific heat capacity of seawater is large, it can be guaranteed that the stable temperature difference between the surface of the shell and surrounding seawater is kept for a long time after heating, and the filling solution is extremely high in cost performance; through surface drag reduction, strict size limitation is avoided, the original design appearance of a navigation body cannot be damaged through surface drag reduction, the hydrodynamic characteristic can be guaranteed, and therefore the surface drag reduction device is suitable for most unmanned underwater vehicles.

Description

technical field [0001] The invention belongs to the technical field of motion drag reduction of underwater vehicles, and in particular relates to a motion drag reduction shell of an unmanned underwater vehicle. Background technique [0002] Since the 1990s, the role of submarines in the underwater battlefield has undergone significant changes, and they are increasingly used in offshore waters to support joint operations. However, for expensive conventional submarines and nuclear submarines, the risk undoubtedly increases. In particular, submarines with large volume and tonnage are simply unable to operate in shallow waters near the sea. Even in offshore activities with a water depth of more than 100 meters, they are easily discovered and attacked by the opponent's anti-submarine forces. At the same time, the Navy needs stealthy unmanned systems to collect intelligence and attack targets in places where traditional sea power cannot reach; and to carry out non-combat naval ac...

AI Technical Summary

Problems solved by technology

However, because supercavitation has extremely strict requirements on the navigation speed, if the lower limit of cavitation cannot be met, it is very easy to lose stability during navigation, and it is difficult to achieve effective and reliable control of it.

Moreover, the supercavitation technology needs to equip the moving body with high-pressure gas storage cylinders, which is even more difficult for unmanned underwater vehicles that already have size and weight restrictions. This approach is very difficult to solve the contradiction. Difficult to work

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