KR20230089660A - Ship with a bendable fin to maintain a trim state - Google Patents

Abstract

The problem to be solved by the present invention is to provide a ship including a fin that can be bent to maintain a trim state that can respond to rollover, in particular, can respond according to the strength of waves.
A ship including a fin portion that can be bent to maintain the trim state of the present invention includes a hull extending from the bow in the stern direction, and fin portions provided on both sides of the hull, the fin portion is divided into one or more, and the blue Depending on the strength of the horizontal direction or folded in multiple stages.

Description

Ship with a bendable fin to maintain a trim state}

The present invention relates to a ship including a fin that can be bent to maintain a trim state.

In general, at sea, ships perform various movements such as pitching, heaving, and rolling due to waves, and these agitation phenomena act as a factor impeding work performance and safety.

For example, in the case of a ship having a high center of gravity, such as a container ship loading containers on top of an upper deck, there is a problem in that it is highly likely to capsize due to rollover. In addition, in the case of a ship loaded with liquid cargo, such as an LNG carrier, a sloshing phenomenon of the liquid cargo occurs due to rollover, which harms the stability of the ship.

On the other hand, in order to stabilize the ship, it is necessary to develop a ship capable of responding to rolling motion.

The problem to be solved by the present invention is to provide a ship including a fin that can be bent to maintain a trim state that can respond to rollover, in particular, can respond according to the strength of waves.

The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the following description.

One aspect of the ship including a fin portion that can be bent to maintain the trim state of the present invention for achieving the above object includes a hull extending from the bow in the stern direction, and fin portions provided on both sides of the hull And, the fin part is divided into one or more, and is provided in a horizontal direction or bent in multiple stages according to the intensity of the wave.

The fin part is provided in the shape of an airfoil, is provided in a horizontal direction in the first intensity of the wave, is bent in the second intensity in which energy is formed to be large compared to the first intensity, and the fin portion in the second intensity A driving unit including a multi-joint link member connected to the pin unit to be bent in multiple stages may be further included.

The fin unit includes a first member, a second member and a third member provided in a line along the longitudinal direction of the hull, the first member is adjacent to the bow in comparison to the third member, A third member is adjacent to the stern in comparison to the first member, and at least one of the first member, the second member, and the third member is upward from the bow toward the stern, and the second member Is upward in the stern direction compared to the first member and the third member may be provided in a horizontal direction at the rear of the second member.

The fin unit includes a first member, a second member, and a third member provided in a line along an outward direction from the hull, the first member being connected to the hull, and the first member and the second member. At least one of the member and the third member may be upward in an outward direction from the hull.

The fin unit may be alternately provided with a first fin extending upward from the bow to the stern to reduce roll and a second fin extending outward from the hull to reduce pitch.

Details of other embodiments are included in the detailed description and drawings.

According to the present invention, a ship including a fin portion that can be bent to maintain a trim state has a fin portion that is provided in a horizontal direction or can be bent according to the intensity of waves, thereby maximizing the ship's operational stability.

1 is a view showing a ship including a fin that can be bent to maintain a trim state according to a first embodiment of the present invention.
FIG. 2 is a view showing a bent state of a fin portion of a ship including a fin portion capable of being bent to maintain a trim state according to a first embodiment of the present invention.
3 is a view showing a horizontal state of a fin portion of a ship including a fin portion that can be bent to maintain a trim state according to a first embodiment of the present invention.
4 is a view showing an exposed state of the inside of a fin part of a ship including a bendable fin part to maintain a trim state according to the first embodiment of the present invention.
5 is a view showing a fin part of a ship including a fin part that can be bent to maintain a trim state according to a second embodiment of the present invention.
6 is a view showing a ship including a fin that can be bent to maintain a trim state according to a third embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Advantages and features of the present invention, and methods for achieving them, will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms, only the present embodiments make the disclosure of the present invention complete, and the common knowledge in the art to which the present invention belongs It is provided to fully inform the holder of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, the same or corresponding components regardless of reference numerals are given the same reference numerals, Description will be omitted.

1 is a view showing a ship including a fin that can be bent to maintain a trim state according to a first embodiment of the present invention, and FIG. 2 is a view showing a ship that is bent to maintain a trim state according to a first embodiment of the present invention It is a view showing a state in which the fin portion of a ship including a possible fin portion is bent, and FIG. 3 is a horizontal state of a fin portion of a ship including a fin portion capable of being bent to maintain a trim state according to a first embodiment of the present invention. 4 is a view showing an exposed state of the inside of a fin portion of a ship including a fin portion capable of being bent to maintain a trim state according to the first embodiment of the present invention.

1 to 4, a ship 100 including a fin portion that can be bent to maintain a trim state according to an embodiment of the present invention includes a hull 110, a fin portion 120, and a driving portion 125 can do. And the ship 100 of this embodiment may be a container ship, an LNG carrier, a drill ship, a floating production storage offloading (FPSO) and a floating storage and regasification unit (FSRU), but this is only an example, and may be various other ships. .

The hull 110 may extend from the bow to the stern. Illustratively, the hull 110 may include a bow part (not shown), a central part (not shown) and a stern part (not shown). Those (not shown) may be installed, etc. The propulsion device may include a propeller and/or a pod thruster, etc. Illustratively, the propulsion device rotates around a central axis of rotation extending vertically in the stern portion. Possibly installed, it can provide thrust in all directions.The skeg can improve the maneuverability or motion performance of the hull 110, and can be modified in various configurations. However, the ship 100 In the process of navigating by thrust, rollover caused by waves may occur.

The fin unit 120 is configured to reduce rolling and the like, and may form a bilge keel and/or a stabilizer provided on both sides of the hull 110 in the longitudinal direction of the hull 110.

For example, the rolling motion of the ship may have a large response angle to waves because the damping coefficient is small compared to other motion directions. Problems such as overturning of the ship 100 and/or sloshing of liquid cargo may occur due to rollover, and to prevent this, the fin unit 120 is provided on the hull 110.

Here, the bilge keel has a protruding structure in the form of a flat plate to suppress rolling, and the stabilizer can obtain a stabilizing moment against rolling motion by using the lifting force acting on the pin. However, the fin part 120 of this embodiment can achieve a general bilge kill and / or stabilizer function, but its shape and function are not limited to the known technology, and the reduction of rollover can be maximized, and a modification of the embodiment Depending on this, follow-up may be prevented, which will be described later.

For example, the fin unit 120 may be provided in the shape of an airfoil in which a hollow is formed. The airfoil structure may have a pressure surface and a suction surface by connecting a leading edge and a trailing edge, and a lifting force to prevent rolling may be formed by this structure.

In addition, the fin unit 120 of this embodiment may be bent in multiple stages to correspond to the intensity of the blue. Illustratively, the fin unit 120 may be provided in the horizontal direction at the first intensity of the blue wave (which may be the first speed of the ship 100) where the intensity of the wave is small. In addition, the fin part 120 may be upward from the bow to the stern at the second intensity (which may be a second speed slower than the first speed of the ship 100) in which energy is formed large compared to the first intensity. .

This is because the roll prevention of the fin 120 provided in the horizontal direction can be reduced in the forward speed of the ship 100 or in rough waves. That is, it may be bent in multiple stages to form a structure in which at least a part of the fin unit 120 is raised upward so that the rolling motion reduction function of the fin unit 120 is not reduced even when the forward speed of the vessel 100 decreases or in rough waves.

Specifically, the pin unit 120 may include a first member 121A, a second member 121B, and a third member 121C provided in a line along the longitudinal direction of the hull 110 .

The first member 121A may be adjacent to the player in contrast to the third member 121C. The second member 121B may be provided between the first member 121A and the third member 121C. The third member 121C may be adjacent to the stern in contrast to the first member 121A.

In addition, the second member 121B is bent based on the first member 121A, and the third member 121C can be bent based on the second member 121B, so that the first member 121A is the hull 110 It is fixed to, and the second member 121B and the third member 121C can be bent by the drive unit 125 in the hollow to be described later.

In addition, the second member (121B) in the second strength of the wave (or the second speed of the ship 100) may be upward in the stern direction in contrast to the first member (121A). However, unlike the second member 121B, the first member 121A and the third member 121C can maintain a horizontal state, so the third member 121C moves horizontally from the rear of the second member 121B. can be provided. Accordingly, in the fin unit 120 of the present embodiment, the overall shape of the fin unit 120 is not upward from one end to the other end, and the first member 121A and the third member 121C constituting the front and rear are kept horizontal, while the pin unit ( The second member 121B forming the center of 120) may form an upward structure. Therefore, it is possible to reduce rollover against rough waves (waves of the second intensity) while minimizing a decrease in the forward speed of the ship 100.

Meanwhile, in this embodiment, one pin unit 120 is illustrated, but may be provided in plurality. This will be described later with reference to FIG. 6 .

This pin part 120 may be broken in multiple stages by waves without power, but after being bent by the drive unit 125, the bent state may be maintained.

The driving unit 125 may be connected to the pin unit 120 to bend the pin unit 120 in multiple stages, and may include a link member (not shown) and a hydraulic jack (not shown).

The link member may have a multi-joint structure in which a plurality of bars are connected by hinges. The link member may be provided on each of the second member 121B and the third member 121C. The hydraulic jack is connected to the link member and can push or pull the link member. The driving unit 125 may operate the second member 121B and the third member 121C individually or simultaneously.

However, the link member and the hydraulic jack of the driving unit 125 are merely examples, and the multi-stage bending of the pin unit 120 is possible and various other configuration changes are possible as long as they do not conflict with the present embodiment.

In addition, the fin part 120 of this embodiment has been illustrated as being upward from the stern to the bow direction. However, it is not limited thereto, and the fin unit 120 may be upward from the hull 110 in an outward direction, which will be described with reference to FIG. 5 . In addition, redundant descriptions of the same components performing the same functions will be omitted.

5 is a view showing a fin part of a ship including a fin part that can be bent to maintain a trim state according to a second embodiment of the present invention. Referring to FIG. 5, the description will focus on differences from those described with reference to FIGS. 1 to 4.

Referring to FIG. 5 , the vessel 100 may include a hull 110, a fin unit 120, and a driving unit 125. On the other hand, the fin portion 120 of this embodiment may be upward from the center of the hull 110 in an outward direction.

The pin unit 120 may include a first member 121A, a second member 121B, and a third member 121C that are provided in a line from the hull 110 in an outward direction.

The first member 121A may be provided closest to the hull 110, so even if the first member 121A is connected to the hull 110, the third member 121C is at the most end of the fin portion 120. may be provided, and the second member 121B may be provided between the first member 121A and the third member 121C.

In this fin part 120, in the second intensity of the wave, the second member 121B is upward in the outward direction of the hull 110 in contrast to the first member 121A, and the third member 121C is the second member. (121B) may be provided in a horizontal direction on one side.

Unlike the fin part 120 upward in the direction from the bow to the stern in the first embodiment, it may be upward in the outward direction from the hull 110, and in particular, the first member 121A and the third member 121C are horizontal While the second member (121B) is upward, it is possible to maximize the reduction of pitching.

Meanwhile, in this embodiment, one pin unit 120 is illustrated, but a plurality of pin units 120 may be provided. This will be described with reference to FIG. 6 . In addition, redundant descriptions of the same components performing the same functions will be omitted.

6 is a view showing a ship including a fin that can be bent to maintain a trim state according to a third embodiment of the present invention. Hereinafter, description will be made with reference to FIG. 6, but since this embodiment can be made of a combination of the first embodiment and the second embodiment, it can be described with reference to the previously described drawings.

Referring to FIG. 6 , the vessel 100 may include a hull 110, a fin unit 120, and a driving unit 125. Meanwhile, the pin unit 120 of the present embodiment is provided in plurality, and the pin unit 120 of the first embodiment and the pin unit 120 of the second embodiment may be alternately provided. Hereinafter, for convenience of explanation and understanding, the pin unit 120 of the first embodiment will be described as a first fin 120A, and the pin unit 120 of the second embodiment will be described as a second fin 120B.

As the first fin 120A is provided in a row along the longitudinal direction of the hull 110, as shown in FIGS. 1 to 4, the central portion (which may be the second member 121B) is upward, and both ends ( The first member 121A and the third member 121C) may be provided horizontally.

As shown in FIG. 5, the second fin 120B includes a first member 121A, a second member 121B, and a third member 121C provided in a line along an outward direction from the hull 110. can do. And since this structure has been described in the first and second embodiments, overlapping descriptions will be omitted.

As such, a plurality of first fins 120A and second fins 120B may be alternately provided. Such a fin unit 120 can maximize the reduction of rolling motion by a structure that is upward in the stern direction of the hull 110, like the first fin 120A, and like the second fin 120B, of the hull 110 It is possible to maintain the trim state of the vessel 100 by maximizing the reduction of pitching by using a structure that is upward in the outward direction.

Meanwhile, in the present embodiment, when a plurality of fin units 120 are provided, it is illustrated that the first fins 120A and the second fins 120B are alternately arranged in a line. Unlike this, a plurality of first fins 120A and second fins 120B may be provided in a vertical direction, or may be provided in a plurality of staggered directions along the vertical direction and the longitudinal direction of the hull 110. As such, various modifications are possible do.

In the ship 100 including a fin that can be bent to maintain a trim state according to such an embodiment, the fin portion 120 is provided in a horizontal direction or can be bent according to the intensity of waves, thereby maximizing the operation stability of the ship. can do.

Although the embodiments of the present invention have been described with reference to the above and accompanying drawings, those skilled in the art to which the present invention pertains can implement the present invention in other specific forms without changing the technical spirit or essential features. You will understand that there is Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting.

100: ship 110: hull
120: pin part 125: driving part

Claims (5)

A hull extending from the bow to the stern; and
Including fins provided on both sides of the hull,
The fin portion is divided into one or more, and the ship includes a fin portion that can be bent to maintain a trim state, provided in a horizontal direction or folded in multiple stages according to the intensity of waves. According to claim 1,
The fin part is provided in the shape of an airfoil, is provided in a horizontal direction in the first intensity of the wave, and is bent in a second intensity in which energy is formed to be large compared to the first intensity,
A ship including a pin part that is bendable to maintain a trim state, further comprising a drive unit including an articulated link member connected to the pin part so as to bend the pin part in multiple stages at the second strength. According to claim 1,
The fin unit includes a first member, a second member, and a third member provided in a line along the longitudinal direction of the hull,
The first member is adjacent to the bow relative to the third member, and the third member is adjacent to the stern relative to the first member;
At least one of the first member, the second member, and the third member is upward from the bow in the stern direction, so that the second member is upward in the stern direction compared to the first member, and the third member is upward in the stern direction compared to the first member. The member includes a pin portion provided in a horizontal direction at the rear of the second member and capable of being bent to maintain a trim state. According to claim 1,
The fin unit includes a first member, a second member, and a third member provided in a line along an outward direction from the hull,
The first member is connected to the hull,
At least one of the first member, the second member, and the third member includes a fin portion that is bent upward to maintain a trim state in an outward direction from the hull. According to claim 1,
The fin unit is alternately provided with a first fin extending upward from the bow to the stern to reduce rolling motion and a second fin extending outward from the hull to reduce pitching, to maintain a trim state Ships with bendable fins.

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