Abstract:
The present invention relates to a dynamic positioning system having a drift ice weight prediction apparatus capable of reducing damage and sinking possibility of a ship by predicting the weight of drift ice for breaking the ice or evading the drift ice, and minimizing a down time at sea; and a method for predicting the drift ice weight of the same. According to an embodiment of the present invention, the dynamic positioning system includes: a dynamic position (DP) measuring unit having a plurality of sensors for measuring ship information including the position of the ship; a propulsion unit for controlling the position of the ship; a DP control unit for outputting a control signal to the propulsion unit based on the measured value inputted from the DP measuring unit; and the drift ice weight prediction apparatus for predicting the weight of the drift ice by measuring the drift ice.
Abstract:
Disclosed is a resistance reduction system of a maritime structure. The resistance reduction system of a maritime structure has a housing space formed on the inside wall of a hull inside a moon pool and has an angle adjusting structure installed inside the housing space and capable of being drawn toward the moon pool. The side wall of the hull has a rotation angle adjusting unit of the angle adjusting structure, to adjust the angle of the angle adjusting structure around a central axis. Inside the hull, a drawing instrument for drawing the angle adjusting structure from the housing space, and an insertion instrument for inserting the angle adjusting structure back into the housing space, are installed.
Abstract:
A rubber fender having a layer damage preventing structure of a ship is provided to prevent damage to the layer of an outer plate of the ship by reducing the contact area of the rubber fender installed on a side of an inner wall. A rubber fender is installed on a side of an inner wall or a quay to safely moor a ship. The upper and lower corner sections(11) of a rubber fender body(10) to which an outer plate of the ship is attached are rounded. A contact section of the rubber fender is formed in a concave dome shape associated with the rounded corner section. As the area making contact with an outer plate of the ship is remarkably reduced, the layer of the outer plate of the ship is prevented from being damaged even when a movement of the ship is generated.
Abstract:
Disclosed is an ice-resistant structure of a ship and a maritime structure for a cold region. The ice-resistant structure of a ship and a maritime structure for a cold region has a spiral supporting side formed on the main body surface of the ship or the maritime structure, and thus a spiral supporting structure is formed as a surface for supporting floating ice and a gradual inclination angle of the structure is maintained. Thereby, an impactive load, in a situation of a collision with floating ices, can be drastically reduced.
Abstract:
The present invention relates to a vessel speed reducer in a parachute shape. The purpose of the present invention is to provide the vessel speed reducer in a parachute shape, which can reduce the sailing speed of a vessel through fluid resistance by accommodating fluid resisting equipment at the stern during the sailing of the vessel and by unfolding the fluid resisting equipment through rapid drop during an emergency. In order to achieve the above purpose, the vessel speed reducer in a parachute shape comprises: a launching unit which is installed at a fixed position at the stern in a vessel in order to provide propulsion so that a reducer can be positioned under the surface of water; a parachute shaped expanding unit which includes a buoy for floating the reducer on the water, and a mass center weight for maintaining a consistent position of the reducer, at the front end and the back end respectively; a canopy which forms a supporting surface of the expanding unit; and a cylindrical accommodating unit which accommodates the expanding unit, the canopy, the buoy, and the mass center weight.
Abstract:
Disclosed is a device for reducing sloshing of an LNG storage tank. The device for reducing sloshing of an LNG storage tank according to the present invention is arranged on a membrane type LNG storage tank to reduce sloshing; comprises a sloshing reducing plate stuck by LNG stored in the LNG storage tank when the LNG is rolling, and a support part for supporting the sloshing reducing plate and for fixing the sloshing reducing plate to the LNG storage tank. The support part passes through the inner wall of the LNG storage tank.
Abstract:
Disclosed is a device for reducing sloshing of an LNG storage tank. The device for reducing sloshing of an LNG storage tank according to the present invention is arranged on an LNG storage tank to reduce sloshing; comprises a sloshing reducing plate for floating on the free surface of LNG stored in the LNG storage tank, and a support part for connecting the inner wall of the LNG storage tank to the sloshing reducing plate.
Abstract:
The present invention relates to an apparatus for reducing the speed of a vessel (10), including: a braking instrument (30) which is installed on the stern of the vessel (10), and which is prepared with a parachute (36) dropped underwater; and a deployment instrument (40) prepared with a mass body (42) and a buoyant body (44), in order to induce a swift underwater deployment of the parachute (36). Accordingly, the stopping distance of the vessel can be reduced, in order to minimize damages caused by a crash accident, and the simplification of the structure contributes to a high reliability of the apparatus while facilitating commercialization.
Abstract:
PURPOSE: A system for transferring fluid is provided to maximize a function for absorbing strain energy by consecutively connecting a second transferring pipe while forming into a c-shape. CONSTITUTION: A system for transferring fluid(100) comprises a first transferring pipe(110), a crane(120), and a second transferring pipe(130). The first transferring pipe is connected to a first position(1). The crane is installed in the first position, and extends the first transferring pipe to a second position(2). One end of the second transferring pipe is connected to one end of the first transferring pipe and the other end thereof is connected at the second position. The second transferring pipe absorbs strain energy dye to a relative motion between the first position and the second position and thermal stress by the fluid.
Abstract:
본 고안은 유체이송장치에 관한 것으로, 보다 상세하게는 서로에 대해 상대운동하는 제1 및 제2 위치의 각 저장탱크들 사이에서 유체를 안정적으로 이송시킬 수 있는 자체추력형 부이를 이용한 유체이송장치에 관한 것이다. 본 고안에 의한 유체이송장치는 상기 제1위치의 저장탱크에서 연장된 제1이송라인; 상기 제1이송라인이 연결되고, 추진기를 가지며, 상기 추진기의 추력에 의해 위치제어되는 자체추력형 부이(self-propelled bouy); 및 상기 자체추력형 부이와 상기 제2위치의 저장탱크 사이에 연결되는 제2이송라인;을 포함하고, 상기 제1이송라인 및 제2이송라인은 상기 자체추력형 부이을 통해 상호 소통가능하게 연결되는 것을 특징으로 한다.