KR20110016734A - Dual deck vessel - Google Patents

Abstract

PURPOSE: A dual deck ship is provided to adjust the posture of an upper deck by the adjustment of the height of an auxiliary support to correspond to the pitching of a lower deck contacted with water surface. CONSTITUTION: A dual deck ship(300) comprises a lower deck(310), an upper deck(320), auxiliary supports(330), and a controller. The lower deck contacts water surface. The upper deck is connected to a support joint and is supported by the lower deck. The auxiliary supports support the upper deck on one end or both ends of the upper deck. The controller controls the horizontality of the upper deck or the vertical position of the specific spot of the upper deck by corresponding to heaving, rolling, or pitching of the lower deck.

Description

Dual deck ship {DUAL DECK VESSEL}

FIELD OF THE INVENTION The present invention relates to a ship or mobile port and, more particularly, to a dual deck divided into two parts, an upper deck and a lower deck, utilizing the concept of a zero moment point to reliably unload cargo at sea off the land. It is about a ship.

Maritime transportation using ships as a means of transporting goods in remote areas uses less energy and lower transportation costs than other transportation means, and relies on maritime transportation for much of international trade.

In recent years, in marine transportation such as container ships, large-scale ships are used to improve the efficiency of transportation, which is intended to secure the economics of transportation by increasing the transportation volume of the vessel. Accordingly, more and more ports are required to have mooring and unloading facilities for docking large vessels.

However, harbors that can berth large container ships are limited at home and abroad, and the construction of such ports is not only expensive, but also requires a large space. In addition, due to the construction of a large port has a lot of influence on the surrounding environment, such as causing a traffic jam or destruction of the coastal environment, there are many restrictions on the construction of a large port.

Accordingly, the invention relates to a mobile port (mobile harbor) capable of loading and unloading cargo without anchoring a large vessel to the inner wall of the port and anchored at sea off the land, and a method for transferring the cargo using the patent ( Registration number 10-0895604).

1 shows a schematic view of the mobile port shown in the patent, the mobile port 10 can be carried out by the crane 20, the loading operation, Figure 1 (a) is a mobile port (10) And the unloading between the large container ship 30, and FIG. 1 (b) shows the unloading between the mobile harbor 10 and the pier 40. FIG.

The mobile port 10 includes a platform having a space for loading cargo to be loaded or unloaded, a facility for loading and unloading cargo between the vessel and the platform, and a transport facility for transferring cargo on the platform. A cargo transfer device, a positioning device for acquiring information regarding the position of the platform, a buffer connecting device such that the platform remains connected without colliding with the ship during loading and unloading of the cargo, and the like. do.

Since cargo unloading is a movement of several tons or tens of tons of cargo, it is urgently required to maintain the equilibrium of a vessel serving as a mobile port, but the fluctuation of the vessel is caused by the effects of wind, blue, or tide. Indispensable, in spite of these fluctuations, there is a need for a vessel that can remain in equilibrium while working at sea.

The present invention has been made in consideration of the above problems, the present invention is to provide a dual deck ship to control the attitude of the upper deck by adjusting the height of the auxiliary support in response to the swing of the lower deck in contact with the water surface. do.

The present invention, the lower deck in contact with the water surface, the upper deck connected to the support joint at the point where the moment is zero and supported by the lower deck, and the height adjustment for supporting the upper deck at one or both ends of the upper deck Provides a dual deck vessel that includes this possible secondary support.

The support joint may be installed at a point where two or more moments of the upper deck become zero, and the auxiliary support may be provided in plural to allow the multi-degree of freedom of the upper deck. By adjusting the height of the auxiliary support may further include a control unit for controlling the attitude of the upper deck in response to the swing of the lower deck. Further, the control unit may control the horizontal position of the upper deck or the vertical position of a specific point of the upper deck in response to any one or more motions of the lower deck, hebbing, rolling or pitching.

The support joint may also be a universal joint or a spherical joint. The upper deck may be vibration-insulated and supported by a vibration insulator having a spring-damper structure.

According to the dual deck ship according to the present invention, the attitude of the upper deck can be controlled by adjusting the height of the auxiliary support in response to the swing of the lower deck in contact with the water surface. In particular, since it is possible to maintain the equilibrium without applying a large force to the hydraulic cylinder constituting the auxiliary support through the support by the support joint at the zero moment point, precise equilibrium maintenance control is possible.

Therefore, according to the present invention, by controlling the upper deck in a horizontal state in response to any one or more of the movement or rolling of the lower deck, it is possible to increase the stability of the vessel itself and to enable stable cargo unloading with other container ships do.

The vessel according to the present invention can efficiently handle the cargo transportation of container ships requiring deep water depth and can function as a mobile port, thereby contributing to strengthening future port system competitiveness.

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in the drawings. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the following description of the present invention, if it is determined that detailed descriptions of related well-known technologies or functions may obscure the gist of the present invention, the detailed description thereof will be omitted.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

DETAILED DESCRIPTION Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings, and in the following description with reference to the accompanying drawings, the same or corresponding components will be given the same reference numerals and redundant description thereof will be omitted. do.

2 is a schematic diagram showing the concept of equilibrium maintenance using zero moment points.

Referring to FIG. 2A, an upper body 70 is installed on the lower body 60, where the upper body 70 is supported at a point where the weight is balanced and the moment becomes zero. A pivotable body joint 65 connects the lower body 60 and the upper body 70, and both ends of the upper body 70 are assisted by a body support 75, such as a hydraulic cylinder. Here, the body support 75 does not necessarily need to be at both ends, but in the case of support at both ends, more stable balance can be maintained. In addition, a spring and a damper (not shown) may be attached in parallel with the body support 75 to help balance the upper body 70.

 As shown in FIG. 2B, a body support 75 such as a hydraulic cylinder may be installed in another direction to maintain the equilibrium of the upper body 70 in three dimensions. At this time, the body joint 65 will be composed of a joint capable of turning in two directions, such as a universal joint.

In addition, by adding a vibration insulator 68 including a spring or an air cushion between the upper body 70 and the lower body 60, by vibrating the upper body 70 from vibrations of high frequency, the control is more easily controlled. You may. In addition, by installing a spring-damper structure (not shown) in parallel with the body support 75, the control force of the body support 75 may be reduced. The spring-damper structure can be provided using various methods such as a rigid spring or an air cushion or rubber.

Although the upper body 70 is shown in the form of an inverted triangle or an inverted pyramid for the sake of simplicity of the drawing, the upper body 70 may be applied regardless of its shape as long as it is supported at a point where the moment becomes zero.

Since the upper body 70 is supported by most of the weight through the body joint 65 and less force at both ends, it becomes possible to control the movement of the upper body 70 without applying a large force to the hydraulic cylinder. Therefore, despite the fluctuation of the lower body 60, the upper body 70 is able to maintain a precise level.

The concept of the zero moment point was proposed to implement the gait of the robot around 1984, and there have been many studies since. This relates to a dynamic system and has been used as a concept to define the relationship to the static ground, which is different from the upper body control in the situation where the lower body is moving as in the present invention. Therefore, although it is named as a zero moment point concept for convenience, it is actually a central support concept and should be regarded as an application different from the robot application concept so far. For example, the lower body 60 of FIG. 2 is a vessel such as a warship, and the upper body 70 may be applied when the system is to be motionless, such as a precision device such as a radar or projectile, the application target of which is If the invention uses the principles presented, all of them can be applied.

The present invention intends to apply this zero moment point concept (or center support concept) to a dual deck vessel that is divided into two parts, an upper deck and a lower deck. At this time, the lower deck swinging at sea can be seen as the lower body 60, the lower deck is the upper body 70.

3 is a perspective view showing the structure of a dual deck ship according to an embodiment of the present invention. Figure 4a is a front view showing the structure of a dual deck ship according to an embodiment of the present invention, Figure 4b is a side view showing the structure of a dual deck ship according to an embodiment of the present invention. Here, the coordinates are defined as the longitudinal direction of the ship and the transverse direction of the ship's width direction.

3 and 4, the dual deck ship 300 according to an embodiment of the present invention is connected to the lower deck 310 in contact with the water surface and the support joint 340 at the point where the moment is zero, the bottom The upper deck 320 is supported by the deck 310, and the height adjustable secondary support 330 for supporting the upper deck 320 at one end or both ends of the upper deck (320).

The support joint 340 may be installed at a point where the transverse moment of the upper deck 320 becomes zero. The auxiliary support 330 may be installed in plural so as to enable stable support of the upper deck 320 at one end or both ends of the upper deck 320 in the lateral direction. According to the embodiment of Figure 4, it is one point support in two dimensions, but in fact one line support in three dimensions, the support joint 340 may be installed long along the longitudinal direction.

Figure 5a is a front view showing the structure of a dual deck ship according to another embodiment of the present invention, Figure 5b is a side view showing the structure of a dual deck ship according to another embodiment of the present invention.

3 and 5, the dual deck ship 300 according to another embodiment of the present invention, the lower deck 310 in contact with the water surface, and the bottom is connected to the support joint 340 at the point where the moment is zero The upper deck 320 is supported by the deck 310, and the height adjustable secondary support 330 for supporting the upper deck 320 at one end or both ends of the upper deck (320).

The support joint 340 is installed at a point where the transverse and longitudinal moments of the upper deck 320 become zero head, and the auxiliary support 330 is a vessel 300 to enable the multiple degree of freedom of the upper deck 320. It may be provided in plurality in one or both ends of the transverse and longitudinal direction of the. Auxiliary support 330 may be installed in plurality to enable stable support of the upper deck (320). According to the embodiment of Fig. 5, there is also one point support in three dimensions.

Dual deck ship 300 according to an embodiment of the present invention, the control unit (not shown) for controlling the attitude of the upper deck 320 in response to the swing of the lower deck 310 by adjusting the height of the auxiliary support (330) It may include. Furthermore, the controller (not shown) controls the horizontal position of the upper deck 320 or the vertical position of a specific point of the upper deck 320 in response to any one or more motions of the lower deck 310, such as hebbing, rolling or pitching. can do. Here, the specific point will be a point where stable work is required, for example, a point where a crane is installed.

Auxiliary support 330 may be configured to include a hydraulic cylinder. The support joint 340 is formed in a pivotable structure such that the upper deck 320 can be inclined in the longitudinal or transverse direction. For example, the support joint 340 may be configured as a universal joint or a spherical joint. The upper deck 320 may be vibration-insulated and supported by the vibration insulation unit 350 having a spring-damper structure. The spring-damper structure can be manufactured using materials such as springs, air cushions, and rubbers with high rigidity, and mainly serves to isolate high frequency vibrations.

Although the upper deck 320 is shown in the form of an inverted triangle or an inverted pyramid for the sake of simplicity of the drawing, the upper deck 320 may be applied regardless of its shape as long as the moment is supported at a point where the moment becomes zero.

FIG. 6 is a view showing a state in which a dual deck ship according to an embodiment of the present invention performs an unloading operation between other container ships.

As shown, the side of the dual deck ship 300 and the side of the container ship (S) is docked, the crane 360 installed in the ship 300 extends in the direction of the container ship (S) long unloading of cargo (C) Do the work. The ship 300 is rocked due to the effects of wind, blue, or algae in the sea. The swing may include a hebbing, rolling, or pitching, and in spite of the swing, the crane 360 may unload the cargo C stably and smoothly, and the cargo C loaded on the ship 300 may also be used. Stored safely.

According to the dual deck ship 300 according to an embodiment of the present invention, the attitude of the upper deck 320 is controlled by adjusting the height of the auxiliary support 330 in response to the swing of the lower deck 310 in contact with the water surface You can do that. In particular, since it is possible to maintain the equilibrium without applying a large force to the hydraulic cylinder constituting the auxiliary support 330 through the support by the support joint 340 at the zero moment point, precise equilibrium maintenance control is possible.

Therefore, according to an embodiment of the present invention, the horizontal state of the upper deck 320 or the vertical direction of the specific point of the upper deck 320 in response to any one or more of the motion of the lower deck 310, heaving, rolling or pitching By allowing the position to be controlled, the stability of the vessel 300 itself can be increased and also stable cargo unloading with other container ships is possible. The vessel according to the present invention can efficiently handle the cargo transportation of container ships requiring deep water depth and can function as a mobile port, thereby contributing to strengthening future port system competitiveness.

As mentioned above, although specific embodiment of this invention was described, this is only an illustration and this invention is not limited to this, It should be interpreted that it has the broadest range based on the basic idea disclosed in this specification. Those skilled in the art can change the material, size, etc. of each component according to the application field, it is possible to implement a pattern of the shape not shown by combining or replacing the disclosed embodiments, but this is also not departing from the scope of the present invention. In addition, those skilled in the art can easily change or modify the disclosed embodiments based on the present specification, it is apparent that such changes or modifications are included in the scope of the present invention.

1 is a view showing a schematic view of a mobile port shown in the prior patent.

2 is a schematic diagram showing the concept of equilibrium maintenance using zero moment points.

3 is a perspective view showing the structure of a dual deck ship according to an embodiment of the present invention.

Figure 4a is a front view showing the structure of a dual deck ship according to an embodiment of the present invention, Figure 4b is a side view showing the structure of a dual deck ship according to an embodiment of the present invention.

Figure 5a is a front view showing the structure of a dual deck ship according to another embodiment of the present invention, Figure 5b is a side view showing the structure of a dual deck ship according to another embodiment of the present invention.

FIG. 6 is a view showing a state in which a dual deck ship according to an embodiment of the present invention performs an unloading operation between other ships.

<Description of main parts of drawing>

60: lower body 65: body joint

68: vibration insulation 70: upper body

75: body support

300: dual deck ship 310: lower deck

320: upper deck 330: auxiliary support

340: support joint 350: vibration insulation

360: crane

C: Cargo S: Container Ship

Claims (6)

Lower deck facing the water surface, An upper deck connected to the support joint at the point where the moment becomes zero and supported by the lower deck, A height adjustable auxiliary support for supporting the upper deck at one or both ends of the upper deck Dual deck ships included. The method of claim 1, The support joint is installed at a point where the moment in two or more directions of the upper deck becomes zero, The auxiliary support is a dual deck ship is installed in plurality in order to enable the multi-degree of freedom movement of the upper deck. The method of claim 1, And a control unit for controlling the attitude of the upper deck in response to the swing of the lower deck by adjusting the height of the auxiliary support. The method of claim 3, The control unit, Dual deck ship to control the horizontal position of the upper deck or the vertical position of a specific point of the upper deck in response to any one or more of the motion of the lower deck, hebbing, rolling or pitching. The method according to any one of claims 1 to 4, Wherein said support joint is a universal joint or a spherical joint. The method according to any one of claims 1 to 4, The upper deck is a dual deck ship is supported and vibration-insulated by a vibration insulator having a spring-damper structure.

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