Ship drag reducing device, manufacturing unit and manufacturing method for manufacturing the drag reducing device

Abstract

Disclosed are a resistance reducing apparatus for a ship, a unit for manufacturing the same and a manufacturing method thereof. The resistance reducing apparatus for a ship according to an embodiment of the present invention includes: frame parts arranged on the deck of the ship's bow; and a plurality of panels covering spaces between the frame parts so as to reduce the resistance exerted by fluid on the shipped cargoes.

Description

technical field [0001] The invention relates to a ship drag reducing device, a manufacturing unit and a manufacturing method for manufacturing the drag reducing device. Background technique [0002] Usually, when a ship is sailing, it is subjected to the resistance of water and waves to the hull, as well as the resistance of air and wind to the hull. In fact, air resistance is an important reason for the high fuel consumption of the ship, the decrease of the maximum speed of the ship, and the decrease of the maneuverability of the ship. In particular, the shape of the main hull and the cargo loaded on the water part of ships such as ultra-large container ships and cargo transport ships is similar to a cuboid, such as ships with a high exposed height on the water and a large wind pressure area. The resistance caused by the collision with the water surface caused by the green water rushing to the bow of the ship is very large, so the bow part is subject to great resistance. ...

AI Technical Summary

Problems solved by technology

However, unlike existing manufacturing methods such as the integral molding method using a metal model such as the automobile drag reducing device, or the heating and pressurizing molding method such as the aircraft manufacturing technology, the ship drag reduction made of composite materials is manufactured by integral molding. installation is very difficult

[0007] In addition, composite materials are relatively weak to welding heat, so it is difficult to manufacture drag reduction devices through welding operations or install drag reduction devices on the hull

In addition, the drag reducing device is manufactured by the normal temperature pressure molding method similar to the manufacturing of the blades of the wind power generator, which is not practical enough in terms of the cost compared with the effect.

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