KR101674807B1 - Supporting apparatus of the floating structures - Google Patents

Supporting apparatus of the floating structures Download PDF

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Publication number
KR101674807B1
KR101674807B1 KR1020150070266A KR20150070266A KR101674807B1 KR 101674807 B1 KR101674807 B1 KR 101674807B1 KR 1020150070266 A KR1020150070266 A KR 1020150070266A KR 20150070266 A KR20150070266 A KR 20150070266A KR 101674807 B1 KR101674807 B1 KR 101674807B1
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KR
South Korea
Prior art keywords
floating
damper unit
fluid
damper
flow path
Prior art date
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KR1020150070266A
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Korean (ko)
Inventor
하진웅
Original Assignee
두산중공업 주식회사
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Priority to KR1020150070266A priority Critical patent/KR101674807B1/en
Application granted granted Critical
Publication of KR101674807B1 publication Critical patent/KR101674807B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/005—Equipment to decrease ship's vibrations produced externally to the ship, e.g. wave-induced vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
    • B63B17/0081—Vibration isolation or damping elements or arrangements, e.g. elastic support of deck-houses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
    • B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
    • B63B43/04—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/448—Floating hydrocarbon production vessels, e.g. Floating Production Storage and Offloading vessels [FPSO]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/10—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by damping the waves, e.g. by pouring oil on water
    • B63B2039/105—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by damping the waves, e.g. by pouring oil on water by absorption of wave energy, e.g. by structured, wave energy absorbing hull surfaces
    • B63B2731/00—

Abstract

A support apparatus for a floating offshore structure is disclosed. The support apparatus for a floating offshore structure, according to an embodiment of the present invention, minimizes the kinetic energy of fluid flowing to a floating offshore structure. The support apparatus for a floating offshore structure comprises: multiple damper units which are arranged to be dispersed; and multiple guide members which are extended downward from the bottom surface of the damper units.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

The present invention relates to a structure for minimizing vibration applied to a structure suspended in a sea level, and more particularly, to a support apparatus for a floating ocean structure.

In general, Very Large Floating Structure is floated in the marine space to replace narrow land space due to depletion of space resources due to industrialization and urbanization. It is environmentally friendly and economically large scale In order to create a marine space, the very large floating offshore structure buoyantly holds its own weight and remains fixed through a mooring device to minimize the phenomenon of rolling or pitching caused by the waves .

The mooring structure is fixed in a state of being fixed primarily by using a fixing member having an anchor or a similar function on the sea floor, and the very large floating marine structure is fixed through a wire extending toward the outer lower surface of the super large floating marine structure maintain.

The mooring device is configured to control the tensile force of the wire and is used to minimize the impact directly applied to the super large floating structure.

In addition to the super large floating offshore structures, offshore structures such as ships and floating production storage and offloading (FPSO) can be affected by waves at all times during operation or stopping. In this case, If the amplitude of the vibration applied to the floating ocean structure or the FPSO is increased, the damage due to the breakage or overturning may occur, and a countermeasure is needed.

Korean Patent Publication No. 10-2012-0008331

Embodiments of the present invention provide a support device for a floating offshore structure that minimizes vibration applied to a floating offshore structure and thereby suppresses the occurrence of rolling or pitching.

According to an aspect of the present invention, there is provided a dam structure comprising: a plurality of damper units spaced apart from a lower portion of a floating ocean structure, And a plurality of guide members extending downward from the lower surface of the damper unit to minimize kinetic energy of the fluid moved toward the floating marine structure, Wherein a flow path is formed through which the fluid moves toward the lower surface of the offshore structure, and a fluid introduced through the flow path between the lower surface of the floating offshore structure and the damper unit opposed to the floating structure, And the fluid is moved to the outside of the floating offshore structure by the passage formed by the spaced spaces.

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And the channel is opened toward the center of the floating ocean structure.

Wherein the damper unit is formed with an inclined portion whose upper surface extends outwardly and downwardly inclined.

And a fluid guide portion provided on a lower surface of the floating oceango- tional structure at a position opposite to the flow path and guiding a moving direction of the fluid flowing through the flow path to left and right sides of the floating oceango- .

The fluid guide portion is formed in a cylindrical shape or a triangular shape.

And the guide member extends in a conical shape whose diameter decreases from the damper unit toward the lower side.

And the lower side of the plurality of guide members is relatively widely spaced from the upper side.

In accordance with another aspect of the present invention, there is provided an apparatus for supporting a floating offshore structure, comprising: a plurality of damper units spaced apart from a lower portion of a floating offshore structure, And a plurality of guide members extending downward from the lower surface of the damper unit to minimize kinetic energy of the fluid moved toward the floating marine structure, Wherein a flow path is formed between the floating structure and the damper unit so that a fluid flowing through the flow path is formed between the floating structure and the damper unit, And the fluid is moved to the outside of the floating ocean structure by the passage formed in the floating structure.

And the weight is disposed on the entire inner bottom surface of the damper unit with a first thickness t1.

And the weight body is disposed with a first thickness t1 along an inner edge of the damper unit.

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Embodiments of the present invention can be installed in a floating offshore structure or floating oil production storage and unloading facility to minimize the occurrence of vibrations and shocks caused by waves, thereby preventing shaking and breakage due to vibration, thereby maintaining stable use.

Embodiments of the present invention can minimize the vibration generated in the floating ocean structure and the vibration amplified at a specific position by supporting and dispersing the longitudinal kinetic energy in the kinetic energy due to the waves.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a view of a floating offshore structure according to one embodiment of the present invention.
2 is a view showing a damper unit according to another embodiment of the present invention.
3 is a view of a floating offshore structure according to another embodiment of the present invention.
4 is a view showing a weight installed in a damper unit according to another embodiment of the present invention.

A floating ocean structure according to an embodiment of the present invention will be described with reference to the drawings. 1 is a view showing a floating offshore structure according to an embodiment of the present invention, and FIG. 2 is a view showing a damper unit according to another embodiment of the present invention.

Referring to FIG. 1, a supporting apparatus 1 of a floating type ocean structure according to an embodiment of the present invention is a Very Large Floating Structure, which is a very large floating structure, (10) is applicable to floating production storage and offloading (FPSO), and it is limited to a very large floating type offshore structure. I never do that.

A plurality of damper units 100 are disposed in a lower portion of a floating offshore structure 10 and a guide member 200 is provided on a lower surface of the damper unit 100. The damper unit 100 includes a floating ocean structure Are spaced apart from the lower part of the body 10 and are distributed independently of each other, and the number is not limited to the number shown in the drawings and can be changed.

The damper unit 100 has a structure in which a fluid is filled in the damper unit 100 so as to minimize an impact applied by a wave and vibration is reduced or a structure (not shown) for damping with the fluid is formed inside the damper unit 100 Lt; / RTI >

Preferably, the damper unit 100 is made of a material that does not cause corrosion because it is kept in contact with seawater, and is preferably made of a material that does not cause damage due to an external force due to waves. Even when used, it can be used without breakage. For example, the damper unit 100 may be made of rubber or a mixture of plastic and fiber, but is not limited thereto.

The damper unit 100 is formed in a rectangular parallelepiped shape having a predetermined thickness when viewed from the upper surface and a flow path 20 is formed between the plurality of damper units 100 so as to move the fluid toward the lower surface of the floating offshore structure 10. [ . A plurality of damper units 100 are disposed on the lower surface of the floating structure 10 for the inflow of waves and the position of the flow passage 20 is defined by the lower surface of the floating structure 10, And is opened toward the center.

The reason for forming the channel 20 at the above position is that after a wave flows through the channel 20, it is moved to the left and right through the channel 30 to be described later via the center of the floating offshore structure 10 So as to minimize the occurrence of vibration due to an impact applied to the floating offshore structure (10).

For example, when the flow passage 20 is located at any one of the right and left ends of the floating offshore structure 10, when kinetic energy due to the waves is directly transmitted to the floating offshore structure 10, It is most preferable that the flow path 20 is formed at a position shown in the drawing, since pitching may occur in the floating structure 10 and thus the occurrence of vibration of the floating ocean structure 10 may be increased.

The damper unit 100 is connected to the floating marine structure 10 via a connection portion (not shown). The damper unit 100 is elastically connected to the damper unit 100 by a predetermined length And a damping portion (not shown) that is compressively deformed is provided, so that the shock can be reliably reduced in the up, down, left, and right directions due to waves.

A fluid introduced through the flow path 20 is introduced into a space formed between the floating ocean structure 10 and the damper unit 100 between the lower surface of the floating ocean structure 10 and the damper unit 100 facing the lower surface of the floating ocean structure 10. [ (30) moves the fluid to the outside of the floating offshore structure (10).

Since the passage 30 is formed between the floating ocean structure 10 and the damper unit 100, the impact caused by the waves is dispersed and supported through the initial guide member 200, And flows into the passage 30 as well. Part of the kinetic energy of the waves is transmitted to the lower surface of the floating ocean structure 10 while the remaining part of the kinetic energy of the waves is transmitted to the damper unit 100 while being moved along the passage 30.

The damper unit 100 is moved in the vertical direction to generate vibration while the kinetic energy due to the waves moves along the passage 30. The damper unit 100 damps the vibration generated by the damper unit 100, Minimizing the vibration transmitted to the structure (10). Accordingly, the vibrations transmitted to the floating offshore structure 10 and the impact due thereto can be attenuated differently according to the intensity of the waves.

The passage 30 can provide a space in which a wave having kinetic energy can be moved so that the kinetic energy of the wave is reduced while moving along the passage 30. [

The flow path 20 is not particularly limited numerically, but is formed between a plurality of damper units 100 spaced apart from each other, so that the flow path 20 can be changed without being limited to the intervals shown in the drawings. In addition, the passage 30 may be varied depending on the presence or absence of a wave or the movement of the damper unit 100, but is numerically calculated in consideration of an area corresponding to a lower surface of the floating ocean structure 10 The spacing distance from the damper unit 100 is adjusted. Also, although the interval of the passages 30 is shown as being fixed in the figure, the passages 30 are changed to increase the amount of fluid flowing through the passage 20 and decrease to a variable form when the amount of the fluid decreases It is possible to do that.

The bottom of the floating offshore structure 10 is provided at a position facing the channel 20 and the direction of the fluid flowing through the channel 20 is shifted to the left and right sides of the floating ocean structure 10 A fluid guiding part 300 for guiding the fluid is provided. The fluid guiding part 300 is formed in a cylindrical shape or a triangular shape.

The fluid guide part 300 is formed in a cylindrical shape or a triangular shape, and is formed in a triangular shape in the present embodiment, but it can be changed into another shape.

The fluid guide part 300 guides the movement direction of the wave introduced through the flow path 20 to the left and right sides of the passage 30 to generate a phenomenon in which the waves are intensively collided with a specific area of the floating offshore structure 10 It is possible to prevent the occurrence of vibration due to the collision and to minimize the impact caused by the collision.

When the fluid guiding part 300 is formed in a triangular shape, the mating surfaces facing the left and right sides of the fluid guide part 300 are rounded toward the inside with a specific curvature, so that when the wave moves from position a to positions b and c, Are moved along the rounded inner circumferential surface of the fluid guide portion 300 as shown by the arrows, and then stably discharged toward the left and right respectively along the passage 30. [

Therefore, regardless of the intensity of the waves, the direction of movement of the waves can be guided by the fluid guide part 300 to the passages 30, so that even if the waves occur at a place where the floating structure 10 is located for a long time, It is possible to minimize the impact transmitted to the offshore structure 10 and the occurrence of vibration due to the impact.

A plurality of guide members 200 extend downward from the lower surface of the damper unit 100 to minimize the kinetic energy of the fluid moved toward the floating ocean structure 10.

The guide member 200 extends in a conical shape whose diameter decreases from the damper unit 100 toward the lower side and is fixed to the lower surface of the damper unit 100 through a separate bracket The present invention is not limited to the lengths shown in the drawings.

When a wave is generated and moved toward the damper unit 100, the wave is primarily moved toward the damper unit 100 as shown by arrows along the outer circumferential surface of the guide member 200, A part of kinetic energy is reduced due to friction and collision with the outer circumferential surface of the member 200 or is transmitted to the damper unit 100 in which the guide member 200 is installed and is partially attenuated.

Since the waves are moved along the outer circumferential surface of the guide member 200, then collided with the lower surface of the damper unit 100 and then moved downward again, the kinetic energy of the waves is minimized through the damper unit 100 The impact and vibration transmitted to the floating offshore structure 10 are transmitted in a minimized state.

Since a plurality of guide members 200 are provided on the undersurface of the damper unit 100, vibrations and shocks applied to the damper unit 100 due to waves are dispersed evenly without being concentrated at specific positions, It is possible to attenuate the impact due to the waves.

Accordingly, since the damper unit 100 is damped in a form in which the impact due to the wave is not concentrated at a specific position and is uniformly dispersed in the entire region, the damage and deformation of the damper unit 100 is minimized.

Since the lower portion of the guide members 200 is relatively widely spaced from the upper portion of the guide member 200, the guide member 200 stably flows when the wave flows into the upper space from the lower side, and a large amount of fluid can flow in and out through the spaced guide members 200 .

Referring to FIG. 2, the damper unit 100 is formed with an inclined portion 102 whose upper surface extends downwardly inclined downward. The inclined portion 102 is formed on the left side of the flow path 20, When the fluid flows into the passage 30, the movement is stably performed toward the left and right ends without staying in the space in which the passage 30 is formed.

Therefore, even when a large amount of fluid flows through the passage 30, the drainage and movement can be easily performed.

A supporting apparatus for a floating offshore structure according to another embodiment of the present invention will be described with reference to the drawings. In this embodiment, unlike the above-described embodiment, the weight is located inside the damper unit, so that the swinging due to the waves can be minimized.

3 to 4, a supporting device 1a of a floating marine structure according to another embodiment of the present invention is separated from a lower part of a floating marine structure 10 so as to be dispersed and disposed independently of each other, A plurality of damper units 1000 in which the weight 1100 is placed; And a plurality of guide members 2000 extending downward from the lower surface of the damper unit 1000 to minimize kinetic energy of the fluid moved toward the floating offshore structure 10.

A plurality of damper units 1000 are disposed in a lower portion of the floating offshore structure 10 and a guide unit is provided on a lower surface of the damper unit 1000. The damper unit 1000 includes a floating offshore structure 10, and are independently distributed from each other, and the number is not limited to the number shown in the drawings, and can be changed.

The damper unit 1000 has a structure in which a fluid is filled in the damper unit 1000 so as to minimize the impact applied by the waves and vibration is reduced or a structure (not shown) for damping together with the fluid is provided inside the damper unit 1000 Lt; / RTI >

Preferably, the damper unit 1000 is made of a material that does not cause corrosion since the damper unit 1000 is kept in contact with sea water, and is made of a material that does not cause damage due to external forces due to waves. In addition, it is preferable that a stable strength is maintained. For example, it may be composed of a material mixed with rubber or plastic and fibers, but it is not necessarily limited to the above-mentioned materials.

The weight 1100 may be disposed on the entire inner bottom surface of the damper unit 1000 with a first thickness t1 or may have a first thickness t1 along the inner edge of the damper unit 1000 (See FIG. 4). The weight 1100 may be disadvantageous for damping the impact caused by the wave when the thickness is increased beyond a certain thickness, so that it is formed to a specific thickness through simulation.

The weight 1100 may be made of a material that does not contain iron so as not to cause corrosion when it is directly or indirectly contacted with seawater, and may be made of a material that generates less corrosion, A coating treatment for preventing corrosion can be carried out.

When the damper unit 1000 is swung in the up-and-down direction or in the unspecific direction by the waves, the weight 1100 maintains the center of gravity in the downward direction to minimize the repetitive holding time due to the swelling, The stable operation of the battery 1000 can be achieved.

Particularly, the damper unit 1000 may have an increased displacement in the up and down direction depending on the intensity of the waves. By the weight 1100, a stable impact reduction can be performed within a specific range for damping, so that the impact applied to the floating offshore structure 10 can be minimized.

The damper unit 1000 is formed in a rectangular parallelepiped shape having a predetermined thickness when viewed from the upper surface and a flow path 20 is formed between the plurality of damper units 1000 so as to move the fluid toward the lower surface of the floating offshore structure 10. [ . A plurality of damper units 100 are disposed on the lower surface of the floating structure 10 for the inflow of waves and the position of the flow passage 20 is defined by the lower surface of the floating structure 10, And is opened toward the center.

The reason for forming the channel 20 at the above position is that after a wave flows through the channel 20, it is moved to the left and right through the channel 30 to be described later via the center of the floating offshore structure 10 So as to minimize the occurrence of vibration due to an impact applied to the floating offshore structure (10).

For example, when the flow passage 20 is located at any one of the right and left ends of the floating offshore structure 10, when kinetic energy due to the waves is directly transmitted to the floating offshore structure 10, It is most preferable that the flow path 20 is formed at a position shown in the drawing, since pitching may occur in the floating structure 10 and thus the occurrence of vibration of the floating ocean structure 10 may be increased.

A fluid introduced through the flow path 20 is introduced into a space formed between the floating ocean structure 10 and the damper unit 1000 between the lower surface of the floating ocean structure 10 and the damper unit 1000 facing the lower surface of the floating ocean structure 10. [ (30) moves the fluid to the outside of the floating offshore structure (10).

Since the passage 30 is formed between the floating ocean structure 10 and the damper unit 1000, the impact due to waves is dispersed and supported through the first guide member 2000, And flows into the passage 30 as well. A part of the kinetic energy of the waves is transmitted to the lower surface of the floating ocean structure 10 and the remaining part of the kinetic energy is transmitted to the damper unit 1000. [

In this case, the overall weight of the damper unit 1000 can be minimized by the weight 1100 described above, and the amount of impact transmitted to the floating ocean structure 10 can be minimized as long as no significant impact is applied to the damper unit 1000. [ Is transmitted in a relatively reduced state, so that the long-term floating floating structure 10 can be stably used.

The damper unit 1000 is moved in the vertical direction to generate vibration, while the kinetic energy due to the waves moves along the passage 30, but the vibration generated by the damper unit 1000 is damped, Minimizing the vibration transmitted to the structure (10). Accordingly, the vibrations transmitted to the floating offshore structure 10 and the impact due thereto can be attenuated differently according to the intensity of the waves.

The passage 30 can provide a space in which a wave having kinetic energy can be moved so that the kinetic energy of the wave is reduced while moving along the passage 30. [

The flow path 20 is not particularly limited numerically, but is formed between a plurality of damper units 1000 spaced apart from each other, so that the interval is not limited to the interval shown in the drawing. In addition, the passage 30 may be varied depending on the presence or absence of a wave or the movement of the damper unit 1000, but is numerically calculated in consideration of the area corresponding to the lower surface of the floating ocean structure 10 The spacing distance from the damper unit 1000 is adjusted.

Also, although the interval of the passages 30 is shown as being fixed in the figure, the passages 30 are changed to increase the amount of fluid flowing through the passage 20 and decrease to a variable form when the amount of the fluid decreases It is possible to do that.

The bottom of the floating offshore structure 10 is provided at a position facing the channel 20 and the direction of the fluid flowing through the channel 20 is shifted to the left and right sides of the floating ocean structure 10 A fluid guide part 3000 for guiding fluid is provided, and the fluid guide part 3000 is formed in a cylindrical shape or a triangular shape.

The fluid guide part 3000 is formed in a cylindrical shape or a triangular shape. In the present embodiment, the fluid guide part 3000 is formed as a triangular shape, but it can be changed to another shape.

The fluid guide part 3000 guides the movement direction of the waves introduced through the flow path 20 to the left and right sides of the passage 30 so that the waves are intensively collided with a specific area of the floating ocean structure 10 It is possible to prevent the occurrence of vibration due to the collision and to minimize the impact caused by the collision.

A plurality of guide members 2000 extend downward from the lower surface of the damper unit 1000 to minimize the kinetic energy of the fluid moved toward the floating ocean structure 10.

The guide member 2000 extends in a conical shape whose diameter decreases from the damper unit 1000 toward the lower side and is fixed to the lower surface of the damper unit 1000 through a separate bracket The present invention is not limited to the lengths shown in the drawings.

When a wave is generated and is moved toward the damper unit 1000, the wave is primarily moved toward the damper unit 1000 as indicated by an arrow along the outer circumferential surface of the guide member 2000, A part of kinetic energy is reduced due to friction and collision with the outer circumferential surface of the member 2000 or is transmitted to the damper unit 1000 in which the guide member 2000 is installed and is partially attenuated.

Since the waves are moved along the outer circumferential surface of the guide member 2000, then collided with the lower surface of the damper unit 1000 and then moved downward again, the kinetic energy of the waves is minimized through the damper unit 1000 The impact and vibration transmitted to the floating offshore structure 10 are transmitted in a minimized state.

Since a plurality of guide members 200 are provided on the lower surface of the damper unit 1000, vibrations and shocks applied to the damper unit 1000 due to waves are dispersed evenly without being concentrated at specific positions, It is possible to attenuate the impact due to the waves.

Accordingly, since the damper unit 1000 is damped in a form in which the impact due to the wave is not concentrated at a specific position and is uniformly dispersed in the entire area, the damage and deformation of the damper unit 1000 is minimized.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention as set forth in the appended claims. The present invention can be variously modified and changed by those skilled in the art, and it is also within the scope of the present invention.

10: Offshore structures
20: Euro
30: passage
100, 1000: Damper unit
102:
200, 2000: guide member
300: fluid guide portion

Claims (12)

A plurality of damper units spaced apart from a lower portion of the floating offshore structure and distributed independently of each other; And
And a plurality of guide members extending downward from the lower surface of the damper unit to minimize kinetic energy of the fluid moved toward the floating offshore structure,
Wherein a flow path is formed between the plurality of damper units so as to allow the fluid to move toward the lower surface of the floating offshore structure,
The fluid introduced through the flow path is formed between the lower surface of the floating marine structure and the damper unit facing the outside of the floating marine structure by a passage formed by the spaced space between the floating marine structure and the damper unit Characterized in that the movement of the fluid is effected. delete The method according to claim 1,
The flow path includes:
Wherein the support structure is open toward the center of the floating structure. The method according to claim 1,
In the damper unit,
And an inclined portion extending upwardly and downwardly toward the outside of the upper surface. The method according to claim 1,
And a fluid guide portion provided on a lower surface of the floating marine structure and disposed to face the flow path and guiding a moving direction of the fluid flowing through the flow path to left and right sides of the floating marine structure, Support device for floating floating structures. 6. The method of claim 5,
The fluid guide portion
Wherein the support structure is formed in a cylindrical shape or a triangular shape. The method according to claim 1,
The guide member
Wherein the damper unit extends in a conical shape having a reduced diameter toward the lower side of the damper unit. The method according to claim 1,
Wherein the plurality of guide members are spaced apart from each other at a lower side relative to the upper side. A plurality of damper units spaced apart from a lower portion of the floating offshore structure and distributed independently of each other and in which a weight is disposed; And
And a plurality of guide members extending downward from the lower surface of the damper unit to minimize kinetic energy of the fluid moved toward the floating offshore structure,
Wherein a flow path is formed between the plurality of damper units so as to allow the fluid to move toward the bottom center of the floating ocean structure,
The fluid flowing through the flow path is moved between the damper unit and the lower surface of the floating ocean structure by the passage formed between the floating structure and the damper unit to move the fluid to the outside of the floating structure Wherein the support structure is supported by the support structure. 10. The method of claim 9,
The weight may be,
Wherein the damper unit has a first thickness t1 disposed on the entire inner bottom surface of the damper unit. 10. The method of claim 9,
The weight may be,
Wherein the damper unit is disposed with a first thickness (t1) along an inner edge of the damper unit. delete
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101851933B1 (en) 2017-03-31 2018-04-25 주식회사 엠마리나 Concrete floating body
CN115162262A (en) * 2022-06-30 2022-10-11 中国交通建设股份有限公司 Offshore oil storage device and offshore oil storage system

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