WO2011016608A1

WO2011016608A1 - Stabilizer for a floating structure

Info

Publication number: WO2011016608A1
Application number: PCT/KR2009/007986
Authority: WO
Inventors: 곽병만; 박경진
Original assignee: 한국과학기술원
Priority date: 2009-08-07
Filing date: 2009-12-30
Publication date: 2011-02-10
Also published as: KR101102347B1; KR20110015277A

Abstract

A stabilizer for a floating structure according to the present invention includes: a floating shell surrounding the periphery or the bottom surface of a floating structure at a distance from the floating structure; and a sliding line having an end fixed to any one of the floating shell and the floating structure and the other end fixed to the other one of the floating shell and the floating structure via a roller mounted thereto. Alternatively, a stabilizer for a floating structure according to the present invention includes: a floating shell surrounding the periphery or the bottom surface of a floating structure at a distance from the floating structure; and a position controller for controlling the position of the floating structure by applying force between the bottom surface of the floating shell and the bottom surface of the floating structure in the opposite direction of fluctuation direction of the floating structure. The stabilizer for a floating structure according to the present invention is to secure the stability of the floating structure and work safety by keeping the floating structure in balance. For example, stability is secured with respect to the precision equipment of a ship or the vibrations of cabins, or sea operations are carried out stably and efficiently. Furthermore, the vertical absolute position of the floating structure is readily maintained or controlled with respect to the fluctuation of the fluid surface regarding the floating structure, so that an equilibrium state may be actively maintained, thereby guaranteeing the safety of the people on the floating structure.

Description

Float Stabilizer

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stabilizer for stabilizing floating floats. More specifically, stabilization of floating floats is inevitable. It is about a float stabilizer.

There are many cases in which the safety of the suspended solids in the fluid must be secured in various industrial fields. For example, when a precision device is provided in a ship, a stabilization of a cabin is required, or a ship or a mobile port itself. It may be required even if the stability of

As a means of moving goods remotely, maritime transportation by ship uses less energy than other means of transportation and the transportation cost is low, so much of international trade relies on maritime transportation.

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

However, harbors that can be docked by large container ships are limited at home and abroad, and the construction of such a port 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 traffic jams, destruction of the coastal environment or increased risk factors, construction of a large port has a lot of restrictions.

Accordingly, the concept of a floating body for loading and unloading cargo while anchoring a large vessel on a seashore away from the land without docking a large vessel in a harbor is becoming visible.

In such a float, the float may swing in a suspended state. For example, the float may continuously swing while the float is working at sea due to the influence of blue or algae. Adversely affect the stability and efficiency of the fluid. Therefore, there is a need for a device for minimizing the effects of waves or algae, and the float stabilizer according to the present invention provides a stabilizer that makes it possible to keep the equilibrium of the float stable and to minimize fluctuations. The purpose.

The stabilizer of the floating body according to the present invention is a floating shell spaced apart from the floating floating body surrounding the periphery and the bottom, and one end is fixed to the floating shell, the other end is fixed to the floating shell via a roller formed on the floating body It comprises a sliding line.

Here, four or more sliding lines may be formed between the floating body and the floating shell, the floating shell is U-shaped, the bottom surface of the floating shell may be formed in a curved shape.

In addition, between the bottom of the floating shell and the bottom of the floating body may further include a posture control unit for controlling the attitude of the floating body, which can apply a force in a direction opposite to the swinging direction of the floating body.

Here, the posture control unit may include a hydraulic cylinder connected to the floating body and supported by the bottom of the floating shell, a cylinder driving unit driving the hydraulic cylinder, and an attitude sensor for detecting the posture of the floating body and the floating shell.

Furthermore, the pump may further include a pump coupled to the floating body to introduce the internal fluid of the floating shell into the floating body or to discharge the floating internal fluid into the floating shell.

In addition, the floating body and the floating shell may further include a flow resistor that resists the flow of the fluid in the spaced apart portion, the flow resistor is attached to the floating shell, it may be formed of a flexible material.

In addition, both sides of the inner or outer floating body is provided with a tank, and further includes a two-way pump connected to the tank, the two-way pump can supply fluid to the tank in the opposite direction to the swinging of the floating body.

In addition, the float stabilizer according to the present invention is a floating shell which is spaced apart from the floating float and surrounds the periphery and the bottom of the floating shell, and between the bottom of the floating shell and the bottom of the floating body in a direction opposite to the swinging direction of the floating body. It may include a posture control unit for controlling the posture of the floating body, which can apply a force.

Here, one end is fixed to any one of the floating shell or floating body, and may include a sliding line the other end is fixed to any one of the floating shell or floating body via a roller formed on the other of the floating shell or floating body. have.

In addition, the floating shell is spaced apart from the floating body and surrounds the periphery and the bottom surface, and may be provided between the floating body and the floating shell, it may include a cushioning material for preventing the collision of the floating body and the floating shell.

Float stabilizer according to the present invention is to ensure the stability of the float and the stability of the work by maintaining the equilibrium state of the floating float, for example to ensure the stability of the precision equipment of the vessel or the fluctuations of the cabin or the maritime There is an effect to make the work in the stable and efficient.

In addition, it is possible to easily maintain or adjust the vertical absolute position with respect to the fluid surface of the float with respect to the rising and falling of the fluid surface relative to the float to actively maintain the equilibrium state.

In addition, it is possible to maintain more stable and efficient at sea, such as by the floating body, it is possible to ensure the stability of the floating body and to ensure the safety of people on the floating body.

1 is a side view of a float stabilizer according to a first embodiment of the present invention,

2 is a front view of the float stabilizer according to the second embodiment of the present invention,

3 is a side view of the float stabilizer according to the second embodiment of the present invention,

4 is a front view of the float stabilizer according to the second embodiment of the present invention,

5 is a plan view of the float stabilizer according to the first or second embodiment of the present invention;

6 is a plan view of a float stabilizer according to a third embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the float stabilizer according to an embodiment of the present invention. The following specific examples are merely illustrative of the float stabilizer according to the present invention, and are not intended to limit the scope of the present invention.

The float stabilizer according to the embodiment of the present invention may be applied to all the objects suspended in the fluid. In the following embodiments will be described in detail with respect to the case of floating on the sea.

1 or 2 will be described in detail the float stabilizer according to the first embodiment of the present invention.

1 is a side view of a float stabilizer according to a first embodiment of the present invention, and FIG. 2 is a front view of a float stabilizer according to a first embodiment of the present invention.

The float stabilizer according to the first embodiment of the present invention includes a float shell 10 spaced apart from the float 1 and surrounding the bottom and bottom of the float 1, and a sliding line 20.

First, the floating body 1 refers to an object suspended in a fluid and supported by a fluid. For example, the floating body 1 is a floating body that floats on the sea and enables a sea operation, and is a mobile harbor or floating storage regasification (FSRU). It means all possible floats that float on the sea and make work possible. In addition, the floating body 1 includes a local unit such as a precision work device, a cabin, etc., which must be stabilized on the ship, and in this case, the local unit is formed of a structure such as a peripheral wall and the like so as to minimize the separation of the position by a rope or a spring. A certain distance may be maintained. This floating body (1) is suspended in the fluid, for example, because it is floating on the sea in order to enable the operation at sea, it is continuously affected by the cause of fluctuation, for example, blue or algae, The impact causes constant fluctuations.

In order to stabilize the swinging of the floating body 1, the floating body 1 is shaken (when the floating body 1 and the fluid inside the floating shell 10 are shaken by the floating shell 10). It also includes a floating shell 10 surrounding the periphery and the bottom of the floating body 1, for example to cut off the blue to algae and the like.

Here, the floating shell 10 may include a side surface 10s, a front surface 10f, a rear surface 10r, and a bottom surface 10b to surround the floating body 1. The floating shell 10 may be any shape as long as the floating shell 10 does not directly affect the floating body 1 due to the surroundings of the floating body 1, for example, blue to algae, and the like. Or U-shaped cross section may be used.

However, the floating shell 10 should surround the floating body 1 and be spaced a predetermined distance apart.

Here, the distance that the floating shell 10 is spaced while surrounding the floating body 1 may be different in the side, front, back, and bottom of the floating body 1, but may be the same. Here, the floating shell 10 is spaced apart from the bottom of the floating body 1 and has a shape surrounding the floating body 1, and the bottom surface 10b of the floating shell 10 is smaller than the bottom of the floating body 1. It is located on the lower side. In addition, the bottom surface of the floating shell 10 is formed in a curved shape so that the bottom 10b of the floating shell 10 may have the same or similar distances from the bottom throughout the bottom of the floating body 1. It may be formed to have the same curved surface as the bottom of the fluid (1).

In addition, the distance to be separated may be set differently according to the environment around the floating body 1 and the floating shell 10, for example, spatial conditions or each marine environment, and cause fluctuations, for example, the height and specificity of general digging. Can be determined taking into account the intensity of waves or algae in the marine environment. For example, it may be formed so that the distance is two to three times the swing height.

Herein, the inner fluid and the outer fluid of the floating shell 10 are separated from each other, and the floating body 1 is suspended in the inner fluid. Here, the inner fluid surface SI may be lower than the outer fluid surface SO. This is due to the weight of the floating shell 10 itself, because the floating shell 10 is generally formed of a material having a specific gravity higher than the specific gravity of the fluid. Here, the height of the floating shell 10 may be formed higher than the outer fluid surface SO, thereby preventing the external fluid from flowing into the inside of the floating shell 10.

However, the height of the floating shell 10 is formed to be lower than the outer fluid surface (SO) can be formed so that the floating shell 10 is submerged in the fluid. In this case, the inner fluid and the outer fluid are separated from each other only for the portion where the floating shell 10 is present.

One end of the sliding line 20 is fixed to the side surface 10s of the floating shell 10, and the other end is again connected to the side surface 10s of the floating shell 10 via the roller 23 formed on the floating body 1. Can be fixed. In this case, one end and the other end of the sliding line 20 may be fixed to the floating shell 10 spaced apart from each other. 1 and 2, but the separation is shown to be in the depth direction, of course, may be spaced apart in the length or width direction of the floating shell (10).

In addition, although not shown in the drawings, the fixed end of the sliding line 20 may be located in the floating body 1, and the roller 23 may be formed in the floating shell 10.

In addition, a plurality of sliding lines 20 may be formed between the floating shell 10 and the floating body 1, which may be determined in consideration of the size of the floating body 1 and the surrounding environment, for example, the marine environment. have. For example, a sliding line 20 may be provided at four portions of the floating shell 10 facing the side front part and the rear part of the floating body 1, and the left side of the rear surface or the front surface of the floating body 1. And it may be provided in the four parts of the floating shell 10 facing the right side, of course. In addition, as shown in FIG. 5, the sliding line 20 may be provided to be fixed to the boundary between the front portion 10f and the rear portion 10r of the floating shell 10.

Of course, the sliding line 20 may be fixed to the front portion 10f or the rear portion 10r of the floating shell 10, one end is fixed to the side surface (10s) of the floating shell 10 and the other end is a front portion It may be fixed to 10f or the rear part 10r.

In addition, although not shown in the drawings, a pump for introducing the internal fluid of the floating shell 10 into the floating body 1, or for discharging the internal fluid of the floating body 1 to the inside of the floating shell 10 ( Not shown) may be provided coupled to the floating body 1 or the floating shell (10). The pump may be provided in one or a plurality, it may be provided to be coupled to the float (1) in the float (1). Such a pump can be used a general pump that can pump the fluid, of course, can be waterproof.

Such a pump can actively maintain the vertical absolute position of the float 1. That is, when the weight of the floating body 1 is increased, for example, when the floating body 1 is lowered due to the case that cargo or the like is shipped to the floating body 1, the fluid inside the floating body 1 The discharge shell may be discharged into the inside of the floating shell 10, and in the opposite case, when the floating body 1 rises, the fluid inside the floating shell 10 may be introduced into the floating body 1. Thereby, the vertical absolute position of the floating body 1 can be adjusted or maintained with respect to the rising and falling of the fluid surface with respect to the floating body 1.

For example, in the case of performing the hebbing control of the floating body 1 floating in the sea by such a pump, the fluid is pumped more than in the case of the draft line control of the floating body 1 by the conventional ballast tank. The amount can be greatly reduced.

That is, in the conventional floating body having a cross-sectional area A, when the height of the floating body rises in the fluid surface is h, the fluid corresponding to the volume Ah must be introduced into the tank of the floating body so that the floating body can maintain the vertical absolute position. However, as shown in FIG. 5, in the case of including the float stabilizer according to the embodiment of the present invention, the area of the cross section of the float 1 on the fluid surface inside the float shell 10 is called A, and the float shell If the area of the internal fluid surface of (10) except for the area of the cross section of the floating body 1 is B, only the fluid corresponding to the volume ABh / (A + B) is required to maintain the absolute position of the floating body. The inside of the floating shell 10 may be introduced into the floating body 10.

For example, when the cross section of the float 1 is 60m × 30m, when A = 1800m2 and the height of the ship which can be lifted to the cargo unloading is h, as much as 1800h in the case of a conventional float It is possible to maintain the original height to flow into the ballast tank, but in the case of including a float stabilizer according to an embodiment of the present invention, the area of the inner surface minus the cross-sectional area of the float (1) from the cross-sectional area inside the float shell (10) If B = 180 m 2 [the distance between the floating shell 1 and the floating shell 1 is about 1 m], only 164 h of fluid should be introduced into the floating body 1, so that the conventional floating body is used. In comparison with the fluid corresponding to 1/11, that is, only 9.1% of the fluid, the absolute height of the floating body 1 can be adjusted or maintained. Similarly, when the height of the fluid surface is increased by h due to algae or waves, in order to maintain the vertical absolute position of the float, the fluid corresponding to 1/11 is floated from the inside of the float shell 10 as compared with the conventional art. It is good to flow into the inside of (1).

As a result, the vertical absolute position of the float 1 can be maintained or adjusted efficiently with respect to the rise of the fluid surface relative to the float 1 or the weight change of the float.

In addition, as shown in Figure 1 or 2, in order to limit the flow of blue or algae that can be delivered to the fluid inside the floating shell 10, the fluid inside the floating shell 10 is provided with a flow resistor 40 Can be. Since the flow resistor 40 is immersed in the internal fluid between the floating body 1 and the floating shell 10, the flow resistance 40 serves as a resistance to the shaking of the inner fluid to achieve the effect of reducing the shaking. Here, the flow resistor 40 is formed in a flexible net structure or a partition wall of a predetermined height may be attached to the floating body 1 and / or floating shell 10, the range does not collide with the floating body (1) Come within.

As the flow resistor 40 serves as a resistance to the flow itself, the flow of the fluid inside the floating shell 10 to the flow of the floating body 1 or the floating shell 10 itself may be reduced.

In addition, although not shown in the drawings, a fluid tank (not shown) may be provided on both the inside or the outside of the floating body 1 and further include a bidirectional pump connected to each fluid tank. Such a bidirectional pump can further eliminate or reduce the fluctuations of the float 1 that may be present. That is, when the floating body 1 is inclined to the left side, the fluid is supplied to the fluid tank provided on the right side of the floating body 1, and when the floating body 1 is inclined to the right side, By supplying a fluid to the fluid tank provided on the left side, it is possible to further eliminate or reduce the tilt fluctuation.

Hereinafter, the floating stabilizer according to the first embodiment of the present invention will be briefly described for the direct action on the effect of blue or algae.

In the floating body stabilizer according to the first embodiment of the present invention, when there is an external impact factor due to blue or algae, the floating shell 10 encounters such an external impact factor, but the external impact factor is suspended. Only the shell 10 is rocked, but the float 1 is not rocked. At this time, when the floating shell 10 is oscillated, the sliding line 20 is to be tuned via the roller 23 of the floating body (1). For example, as shown in FIG. 2, when the floating shell 10 encounters the wave W of blue or algae, the floating shell 10 is oscillated in accordance with the wave W of the algae. At this time, the sliding line 20 has a different length of the sliding line 20 around the roller 23 with respect to this fluctuation, while allowing the relative movement between the floating body 1 and the floating shell 10 while the floating body (1) does not collide with the floating shell (10).

Reference numeral 3, which is not described in Figures 1 and 2, is a crane to enable the loading and unloading of the cargo (C).

Referring to Figure 3 or 4 will be described in detail a float stabilizer according to a second embodiment of the present invention. Detailed description of the same reference numerals will be omitted in comparison with the case of the first embodiment of the present invention.

3 is a side view of the float stabilizer according to the second embodiment of the present invention, and FIG. 4 is a front view of the float stabilizer according to the second embodiment of the present invention.

The float stabilizer according to the second embodiment of the present invention is connected to the floating shell 10 which is spaced apart from the floating body 1 and surrounds the periphery and the bottom of the floating body 1, and the bottom of the floating body 1. It includes a posture control unit 30 for actively controlling the posture of the floating body (1) supported by the floating shell (10). It may also include a sliding line 20.

Here, the configuration in which the attitude controller 30 is connected to the bottom of the float 1 does not necessarily mean a configuration in which the attitude controller 30 is coupled to the bottom of the float 1. That is, when it is necessary to actively control the attitude of the floating body 1, it is a concept including the case where the attitude | position of the floating body 1 is actively controlled by contacting the bottom face of the floating body 1. In addition, the configuration in which the attitude control unit 30 is supported by the floating shell 10 is a concept including not only being directly supported by the floating shell 10 but also being indirectly supported through other members.

In addition, as shown in FIG. 3 or 4, in order to limit the flow of fluctuations, for example, blue or algae, which may be transmitted to the fluid inside the floating shell 10, the fluid inside the floating shell 10 includes a flow resistor ( 40 may be provided. Since the flow resistor 40 is immersed in the inner fluid between the floating body 1 and the floating shell 10, the flow resistance 40 serves as a resistance to the shaking of the inner fluid and reduces the shaking of the inner fluid. Here, the flow resistor 40 may be attached to the floating shell 10, may be provided on the side portion (10s), the front portion (10f), and / or the rear portion (10r) of the floating shell (10). It is provided in the range which does not collide with the floating body 1.

The attitude control unit 30 actively controls the attitude of the floating body 1 to reduce the swinging of the floating body 1 in accordance with the swinging of the floating body 1, and the direction opposite to the swinging direction of the floating body 1. To exert a force on the float (1).

The posture control unit 30 exerts a force on the floating body 1 because the posture control unit 30 is coupled to only one side of the bottom surface of the floating body 1, so that the floating body 1 is moved in the opposite direction to the swinging direction of the floating body 1. 1) It can be achieved by pulling or pushing one side of the bottom. Alternatively, the posture control unit 30 is connected to both sides of the bottom surface of the floating body 1, and the posture control unit 30 existing in the swinging direction of the floating body 1 pushes the floating body 1 in the opposite direction to the swinging direction. This can be done by applying force.

Here, one side or both sides of the bottom surface of the floating body 1 means only one side when the floating body 1 is viewed from the front or side, and does not mean only one side in the three-dimensional floating body 1 as a whole. . In addition, the meaning of the connection between the posture control unit 30 and the floating body 1 includes the concept of contacting the floating body 1 only when the posture control unit 30 needs to exert a force on the floating body 1. .

The posture control unit 30 is connected to the bottom surface of the floating body 1 and is supported by the floating shell 10, a cylinder driving unit 33 for driving the hydraulic cylinder 31, and a posture detector 35. ) May be included. Here, the posture detector 35 may be any configuration as long as it can sense the relative to absolute fluctuations of the floating body 1 such as a sensor and the floating cell 10, and may be provided inside the posture control unit 30 or the posture control unit. It may be provided outside the 30. By the sensing action of the posture detector 35, the posture of the floating body 1 according to the length or the force of the hydraulic cylinder 31 is controlled.

Hereinafter, as shown in FIG. 3 or 4, when the posture control unit 30 is provided at the vertex of the floating body 1 between the bottom surface of the floating body 1 and the bottom surface of the floating shell 10. Only explain it.

The posture control unit 30 includes a hydraulic cylinder 31 connected to the bottom surface of the floating shell 10 and a cylinder driving unit 33 for driving the hydraulic cylinder 31, so that the hydraulic cylinder in the swinging direction of the floating body 1 is provided. As the 31 extends, a force is applied to the floating body 1. By the force applied in this way, the floating body 1 can return to the direction opposite to the swinging direction, thereby maintaining the equilibrium state of the floating body 1.

Here, four hydraulic cylinders 31 may be provided at the bottom vertex of the floating shell 10, but the number of the posture control units 30 is not limited thereto, and the floating body 1 and the floating shell 10 may be provided. Depending on size and design conditions.

In addition, although not specifically described, in the stabilizer of the float according to the second embodiment of the present invention, a tank is provided on both sides of the float 1 inside or outside, as in the case of the first embodiment of the present invention. By further comprising a two-way pump connected with, it may also include a structure for supplying a fluid to the tank in the opposite direction to the swing of the float. Furthermore, as in the case of the first embodiment of the present invention, the internal fluid of the floating shell 10 flows into the inside of the floating body 1 or vice versa. A pump for discharging may be provided to enable maintenance or adjustment of the vertical absolute position of the float 1 according to the rise or fall of the fluid surface or the loading or unloading of the cargo.

Thereby, the floating body 1 can be stabilized, specifically, the fluctuations of the various precision equipment or cabin which floats can be reduced, or the fluctuation | variation of the ship or port which floats in the sea and works.

Hereinafter, the operation of the float stabilizer according to the second embodiment of the present invention will be briefly described.

In the float stabilizer according to the second embodiment of the present invention, when there is an external shock factor due to external fluctuation causes, for example, blue or algae, the floating shell 10 encounters such an external shock factor. This external shock causes only the oscillation of the floating shell 10 and does not cause the floating body 1 to oscillate. The sliding line 20 passes through the floating body 1 so that the floating shell 10 does not oscillate against the oscillation. The fluid 1 is tuned so as not to collide with the floating shell 10. At this time, rocking may occur in the fluid inside the floating shell 10 due to rocking of the floating shell 10, and the shaking of the inner fluid may be transmitted to the floating body 1, in this case, the posture control unit ( The cylinder driving unit 33 of 30 controls the posture of the floating body 1 so that the floating body 1 does not swing by driving the hydraulic cylinder 31.

In addition, as shown in Figure 6, it will be described in detail with respect to the floating stabilizer according to the third embodiment of the present invention. In describing the third embodiment of the present invention, a detailed description of the same configuration as that of the first or second embodiment will be omitted.

Floating body stabilizer according to a third embodiment of the present invention is a cushioning material 50 that can prevent the collision of the floating body and the floating shell instead of the sliding line 20 provided in the first and second embodiments It includes.

The cushioning material 50 may be a spring or a cushion, and the floating shell 10 directly receives the fluctuations of the fluid and prevents the fluctuations from being transmitted to the float 1, while the float is in the swing of the float shell 10. It is provided to prevent direct collision with (1).

The buffer member 50 is provided between the floating body 1 or the floating shell 10. In FIG. 6, the shock absorbing material 50 is attached to the outer edge of the floating body 1, but is attached to the inside of the floating shell 10 or to both the outside of the floating body 1 and the inside of the floating shell 10. They may be connected, or may be provided in the outer part of the floating body 1 and the inside of the floating shell 10.

The shock absorbing material 50 is configured to prevent a collision between the floating body 1 and the floating shell 10, and when one side of the floating shell 10 approaches one side of the floating body 1, a predetermined interval is provided. In the floating body (1) and the floating shell (10) so as not to collide with itself to absorb the shock.

Here, the cushioning material 50 is formed of a material in which the floating shell 10 does not transmit an impact to the floating body 1, and also has sufficient strength in accordance with the surrounding environment such as the scale of the floating shell 10 and the magnitude of the swing. It is formed of a material having.

Although the specific embodiments of the balancing device of the mobile harbor according to the embodiments of the present invention have been described, this is only an example, and may be used when stabilizing local units such as specific precision equipment installed in a large ship such as a warship. As such, the present invention is not limited to the above embodiments and should be construed as having the broadest scope in accordance with the basic idea disclosed herein. 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 a timeless shape by combining / replacing the disclosed embodiments, this also does not depart 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.

Claims

A floating shell spaced apart from the floating floating body and surrounding the bottom and the bottom of the floating body,

A sliding line having one end fixed to either the floating shell or the floating body and the other end fixed to the floating shell or the one of the floating bodies via a roller formed on the other of the floating shell or the floating body. Containing

Float Stabilizer.
The method of claim 1,

Four or more sliding lines are formed between the floating body and the floating shell.

Float Stabilizer.
The method of claim 1,

The floating shell is U-shaped,

The bottom surface of the floating shell is formed in a curved shape

Float Stabilizer.
The method of claim 1,

Between the bottom of the floating shell and the bottom of the floating body further includes a posture control unit for controlling the posture of the floating body capable of applying a force in a direction opposite to the swinging direction of the floating body.

Float Stabilizer.
The method of claim 4, wherein

The posture control unit,

A hydraulic cylinder connected to the floating body and supported by the bottom of the floating shell;

A cylinder driving unit for driving the hydraulic cylinder;

It includes a posture detector for detecting the posture of the float and the floating shell

Float Stabilizer.
The method according to claim 1 or 5,

A pump coupled to the floating body and configured to introduce an internal fluid of the floating shell into the floating body or to discharge the floating internal fluid into the floating shell;

Float Stabilizer.
The method according to claim 1 or 5,

The floating body and the floating shell is further separated from the flow resistance further includes a flow resistance to the flow of the fluid

Float Stabilizer.
The method of claim 7, wherein

The flow resistor is attached to the floating body or the floating shell, it is formed of a flexible material

Float Stabilizer.
The method according to claim 1 or 5,

Tanks are provided on both sides of the inner or outer side of the floating body,

Further comprising a bidirectional pump connected to the tank,

The bidirectional pump supplies fluid to the tank opposite to the swing of the float.

Float Stabilizer.
A floating shell spaced apart from the floating floating body and surrounding the bottom and the bottom of the floating body,

And a posture control unit configured to control a posture of the floating body, which may apply a force in a direction opposite to the swinging direction of the floating body between the bottom surface of the floating shell and the bottom surface of the floating body.

Float Stabilizer.
The method of claim 10,

A sliding line having one end fixed to either the floating shell or the floating body and the other end fixed to the floating shell or the one of the floating bodies via a roller formed on the other of the floating shell or the floating body. Containing

Float Stabilizer.
The method of claim 10 or 11,

The posture control unit,

A hydraulic cylinder connected to the floating body and supported by the bottom of the floating shell;

A cylinder driving unit for driving the hydraulic cylinder;

It includes a posture detector for detecting the posture of the float and the floating shell

Float Stabilizer.
A floating shell spaced apart from the floating floating body and surrounding the bottom and the bottom of the floating body,

It is provided between the floating body and the floating shell, comprising a cushioning material for preventing a collision of the floating body and the floating shell.

Float Stabilizer.