KR101089651B1 - Floating structure balanced conditions holding apparatus - Google Patents

Abstract

The present invention relates to a floating structure equilibrium maintaining apparatus, the floating structure equilibrium maintaining apparatus according to the present invention is connected to the floating structure, the drag generated by the weight and surface area of the fluid contained therein when moved by the external force in the fluid To maintain the equilibrium of the floating structure.

According to the present invention, when a floating phenomenon occurs due to external forces such as a sudden shandong or wave and wind by connecting a large number of floating structures floating in the water while being mounted separately from the anchor, the weight of the fluid contained in the body and It is possible to maintain the equilibrium state of the floating structure by suppressing the movement of the floating structure by using the drag generated during the movement by the external force.

Floating structure, external force, equilibrium, maintenance, underwater, drag

Description

Floating structure equilibrium maintaining device {FLOATING STRUCTURE BALANCED CONDITIONS HOLDING APPARATUS}

The present invention relates to an apparatus for maintaining an equilibrium state of a floating structure, and more particularly, when the floating water is suddenly moved or moved due to waves or external forces while being mounted separately from an anchor, it is suppressed to equilibrate with respect to the position of the floating structure. A floating structure equilibrium maintaining apparatus for maintaining a state.

In general, aquatic floats such as ships are suddenly moved up, down, left and right due to external forces such as waves or wind, and thus, facilities are damaged or damage to life is often caused.

Anchors like conventional anchors are tools for fixing the anchoring position of aquatic floats. They are heavy, complicated to install and dismantle, and are limited in preventing the shaking of floats caused by tides, waves and winds. And when there is a strong external force, such as wind, there was a problem that the connection rope or chain connecting the anchor occurs.

The present invention has been made in order to solve the above problems, the purpose of the floating structure is connected to a large number of floating structures floating in the state while floating in the water while being mounted separately from the anchor movement of the floating structure due to external forces such as Shanghaidong or waves and wind When the phenomenon occurs, by providing a floating structure equilibrium maintaining device that can maintain the equilibrium state of the floating structure by suppressing the movement of the floating structure by using the weight of the fluid contained in the body and the drag generated during the movement by the external force. have.

In order to achieve the above object, the present invention is characterized by maintaining the equilibrium state of the floating structure by the drag generated by the weight and surface area of the fluid contained therein when moving by the external force in the fluid in a state connected to the floating structure. .

In addition, in the present invention, at least one is connected to the floating structure, the upper body is opened so that the fluid is received therein; A weight provided at the bottom center of the body; And a floating structure connecting member which is fixed upright in the center of the weight and connected to the floating structure.

In addition, the body in the present invention is characterized in that it is formed in an inverted cone shape.

In addition, the body of the present invention is characterized in that the extension wall is formed at the edge protruding and a plurality of holes are formed in the extension wall to generate pressure drag and surface drag during fluid movement.

In addition, the extension wall in the present invention is characterized in that the radial fixing portion for supporting the inner wall is provided.

In addition, the outer wall of the body and the extension wall in the present invention is characterized in that the lifting member is further provided for lifting.

In addition, the extension wall in the present invention is characterized in that the gradient is formed.

When the floating structure equilibrium maintaining apparatus of the present invention is mounted separately from the anchor and connected to the floating structure in a floating state while floating, the movement of the floating structure occurs due to a sudden shandong or wave and wind external force, It is possible to maintain the equilibrium state of the floating structure by suppressing the movement of the floating structure by using the drag generated during the movement of the weight and the external force of the fluid contained in the body.

That is, theoretically, the total drag acting on an object is the sum of friction and pressure drag. The extension wall of the present invention has the effect of increasing the frictional drag.

Downstream from the delamination point, the flow is characterized by irregular turbulent vortices consisting of a boundary layer that is entrained in countercurrent. Generally this condition extends downstream until the vortex is consumed by viscous friction. The fully disturbed area is called the turbulent wake of the object. (Reference figure 1)

(Reference figure 1) With the wake behind the plate standing perpendicular to the flow

Since vortices cannot reduce their rotational kinetic energy to increase in pressure, the pressure in the wake remains close to the pressure at the point of separation, as the ideal fluid theory explains. Since this is always less than the pressure at the forward stagnation point, there is a net pressure difference that tries to move the object in the flow direction, which is the pressure drag.

As a result, the present invention maximizes the generation of wakes occurring behind the cross section and vortices (wakes) generated through a plurality of holes in the extension wall, thereby increasing the pressure drag to move the floating structure connected to the floating structure equilibrium maintaining device of the present invention. By suppressing the effect of maintaining the equilibrium state of the floating structure.

Hereinafter, with reference to the accompanying drawings, the floating structure balance maintaining device of the present invention will be described with reference to an embodiment as follows.

Floating structure equilibrium maintaining device 100 according to an embodiment of the present invention is a fluid (water) in a state in which at least one is connected to the floating structure 10 by a rope or chain, as shown in Figures 1 to 4 When moving by the external force inside the body 110 maintains the equilibrium state of the floating structure by the drag generated by the weight of the fluid contained within the body 110 and the surface area of the body 110.

At this time, the floating structure equilibrium maintaining device 100 includes a body 110, a weight 120, a floating structure connecting member 122, the lifting connection member 124 and the fixing member 130, this embodiment In the example illustrated as connecting to the four points of the floating structure, it is possible to increase or decrease the number of installation.

Body 110 is formed of a metal or non-metallic or synthetic resin material to sink in water, but is formed in an inverted cone shape so that the upper end is opened to form a receiving space therein, the gradient at the top edge (expansion toward the top) The extended extension wall 112 is formed to protrude. In particular, the body 110 has a small cross-sectional area to facilitate movement during vertical movement.

Here, the reason for forming the lower end of the body 110 in an inverted cone shape is to minimize the drag so that it can be easily moved when the body 110 is vertically lowered. On the other hand, the upper end of the body 110 is flat, so that the resistance of the water when raised.

And the extension wall 112 is a wall for increasing the fluid resistance (vortex resistance) during the vertical movement of the body 110 while confining a certain amount of water inside the body 110, a plurality of water passing through to generate the fluid resistance The hole 114 is formed through. In particular, the holes 114 may be formed in a plurality of rows while the arrangement is formed regularly or irregularly, in this embodiment is illustrated as being arranged in a regular row and two rows.

At this time, the extension wall 112 has a plurality of holes 114 are formed to increase the generation of drag (harmonic drag, form drag, pressure drag) due to the cross-sectional area of the extension wall (112). That is, when an external force such as waves and wind acts on the extension wall 112, shock waves of high pressure and high pressure are formed on the surface of the body 110 on which the external force is applied, and expansion waves having low pressure and low pressure are formed on the surface opposite thereto. Because it is formed, it acts as a sowing drag, form drag and pressure drag.

Weight 120 is provided to adjust the weight balance (Weight balance) in the center bottom cone portion of the body 110, while maintaining the equilibrium state of the floating structure 100 while smoothing the movement during the vertical downward and upward movement of the body 110 Will be anchored given that it is in the water.

The floating structure connecting member 122 is fixed upright to the upper center of the weight 120 is provided with a ring at the end to connect to the floating structure 10 can be interconnected by a rope or chain to the ring.

The lifting connection member 124 is provided at one end of the outer wall of the body 110 and the extension wall 112 in a direction orthogonal to the installation direction of the floating structure connecting member 122, and a ring is provided at the end thereof, such as a rope or a chain in the ring. It can be connected to the floating structure 10 to be lifted. Furthermore, the installation position of the lifting connection member 124 is not limited to this and can be changed.

On the other hand, the floating structure connecting member 122 and the lifting connection member 124 is a rope having a small surface area in order to minimize the resistance of the water to the floating structure equilibrium maintaining device 100 during anchoring or lifting of the floating structure (10) Connect with a chain or the like.

The fixing member 130 supports the inner wall to the extension wall 112 at least two points in a radial shape to prevent the shaking of the floating structure connecting member 122 and to generate the vortex and the inner wall of the extension wall 112 and the floating structure. The connecting member 122 is connected and fixed.

" 또는 "*" 등으로 형성되며 형상의 변경이 가능하다.At this time, the fixing member 130 is "1" or "┼" or "×" or "

It is formed of "or" * "and the like and can be changed in shape.

Eventually, drag in the fluid is proportional to velocity and area. In the case of adopting a planar structure with a large area, the device may move irregularly in all directions during Shanghai movement, and occupy too large an area, causing overlapping or collision between the devices. Therefore, this problem is made of a lighter material to take advantage of the weight and drag of the water, while reducing the cross-sectional area, the frictional drag acting on the extension wall 112 of the body 110 and a plurality of holes formed in the extension wall 112 By using the pressure drag acting on the 114 and the weight of the water contained in the body 110 to maintain the equilibrium against the movement of the floating structure (10).

In hydrodynamics, drag is the force that resists this movement as the object moves through the fluid. Drag is divided into friction and pressure. Friction forces act in a direction parallel to the surface of the object, and pressure acts in a direction perpendicular to the surface of the object.

The drag equation is a formula for calculating the drag applied when an object moves in a fluid.

here,

는 항력

Drag

ρ is the density of the fluid

v is the relative velocity of the object to the fluid

A is the reference area

Cd is the drag coefficient

는 속도의 방향을 나타내는 단위 벡터이다 (앞에 붙은 음수 기호는 항력이 이 속도 벡터의 반대 방향으로 작용함을 나타낸다).

Is a unit vector representing the direction of velocity (the negative sign in front indicates that the drag acts in the opposite direction of the velocity vector).

The reference area A is related to the area in which the object is projected on a plane perpendicular to the direction of motion of the object.

Therefore, the floating structure equilibrium maintaining device 100 according to the present invention is connected by lifting the connection member 124 for lifting when the floating structure 10 is moved to the floating structure 10 by a rope or chain.

Subsequently, when anchoring of the floating structure 10 is required, the anchor is lowered and then the floating structure connecting member 122 of the floating structure equilibrium maintaining device 100 is connected to four points of the floating structure 10 by a rope or a chain. Will be connected.

At this time, the fluid is generated in the left and right forms of vibration near the bottom and the top and bottom forms of vibration near the surface of the water, the floating structure equilibrium maintaining device 100 is placed in the water and applied to the vibration of the left and right forms. .

On the other hand, the water is stored in the interior of the body 110 is located in the water to sink in the water due to the material characteristics of the weight 120 and the body 110 provided in the inner center and the bottom of the body 110 is provided in an inverted cone shape Smooth movement during the vertical descent of the body (110).

That is, when the floating structure 10 is shaken up, down, left, and right by an external force such as waves or wind, the vertical movement is smoothly made by the bottom of the body 110 having an inverted cone, but the body 110 is moved up and down. The top of the is provided with a flat to receive a resistance when the vertical rise of the body 110 delays the upward movement by this resistance.

When the floating structure 10 shakes from side to side, the weight of a certain amount of water trapped inside the body 110 by the extension wall 112 formed at the upper edge of the body 110 and the fluid resistance during the vertical movement of the body 110 (eddy current resistance). The additional drag (pressure drag) generated by the plurality of holes 114 formed to increase) delays the lateral movement of the floating structure equilibrium maintaining device 100.

At this time, the extension wall 112 has a plurality of holes 114 are formed to increase the occurrence of drag (harmonic drag, form drag, pressure drag) due to the surface area of the extension wall 112, the fixing member 130 In order to prevent shaking of the floating structure connecting member 122 and to generate a vortex phenomenon, the inner wall of the extension wall 112 and the floating structure connecting member 122 are connected to each other.

That is, the vortex drag is primarily increased by the fixing member 130 and the surface drag and the pressure drag are increased secondly when the water contained in the body 110 and the extension wall 112 exits through the hole 114. Let's do it. As a result, vortices are generated through the holes 114 formed in the fixing member 130 and the extension wall 112, and the drag is generated by the vortices, so that external forces caused by wind and waves and the drag generated in the body 110 are almost eliminated. In the same manner, the floating structure 10 which minimizes shaking is placed in an equilibrium state.

In the detailed description of the present invention described above with reference to the preferred embodiment of the present invention, the scope of protection of the present invention is not limited to the above embodiment, and those skilled in the art of the present invention It will be understood that various modifications and changes can be made in the present invention without departing from the spirit and scope of the invention.

1 is a plan view showing a state in which the floating structure equilibrium maintaining apparatus according to the present invention is connected to the floating structure.

2 is a perspective view of the floating structure equilibrium maintaining apparatus.

3 is a side cross-sectional view of the floating structure equilibrium maintaining apparatus.

4 is a plan view of the floating structure equilibrium maintaining apparatus.

<Description of Symbols for Main Parts of Drawings>

10: floating structure 100: floating structure equilibrium device

110: body 112: extension wall

114: hole 120: weight

122: floating structure connecting member 124: lifting member

130: fixing member

Claims (7)

In the floating structure equilibrium maintaining device, When connected to the floating structure by the external force in the fluid to maintain the equilibrium state of the floating structure by the drag generated by the weight and surface area of the fluid contained therein, At least one is connected to the floating structure, A body whose top is opened to accommodate fluid therein; A weight provided at the bottom center of the body; And And a floating structure connecting member connected to the floating structure by being fixed upright at the center of the weight. The body has an extension wall protruding to the edge, Floating structure equilibrium maintaining device, characterized in that the extension wall is provided with a radial fixing member for supporting the inner wall. delete The method of claim 1, Floating structure equilibrium maintaining apparatus, characterized in that the body is formed in an inverted cone shape. The method of claim 1, The body is a floating structure equilibrium maintaining apparatus, characterized in that a plurality of holes are formed in the extension wall to generate pressure drag and surface drag during fluid movement. delete The method of claim 1, Floating structure equilibrium maintaining device, characterized in that the lifting member is further provided on the outer wall of the body and the extension wall for lifting. The method of claim 1, Floating structure equilibrium maintaining device, characterized in that the extension wall is formed gradient.

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