WO2017073831A1

WO2017073831A1 - High-speed single acting-type vessel provided with fluid flow portion for reducing ship waves

Info

Publication number: WO2017073831A1
Application number: PCT/KR2015/012720
Authority: WO
Inventors: 임정욱
Original assignee: 주식회사 보고
Priority date: 2015-10-29
Filing date: 2015-11-25
Publication date: 2017-05-04
Also published as: KR20170049837A; KR101763757B1

Abstract

The present invention relates to a single acting type vessel provided with a fluid flow portion for reducing ship waves, capable of reducing ship waves produced on the water surface by forming the fluid flow portion on a draft line on the vessel so that ship waves on the water surface are guided through the fluid flow portion to the center part of the rear surface of a hull body. To this end, the single acting-type vessel provided with the fluid flow portion for reducing ship waves, according to the present invention, comprises the fluid flow portion defined by a groove on the draft line connecting side surfaces and the rear surface of the hull body, wherein ship waves on the water surface flowing along the side surfaces of the hull body are guided to the center part of the rear surface of the hull body.

Description

High speed sliding single acting vessel with fluid flow reduction for constant frequency

The present invention relates to a high-speed sliding type single-acting vessel equipped with a fluid flow reduction portion for reducing the anti-frequency, and more particularly, by forming the fluid flow portion on the waterline of the ship, the anti-frequency wave on the water surface through the fluid flow portion of the hull The present invention relates to a high-speed sliding type single-acting vessel equipped with a fluid flow reducing portion for reducing the frequency generated on the water surface to be guided to the rear center portion.

Since the ship is a means of transportation moving in the water, the hull of the ship is subjected to the flow resistance of the fluid during the operation of the ship.

There are frictional resistance and pressure resistance in the flow resistance acting on the hull, and the frictional resistance is the resistance element which occupies most of the flow resistance acting on the hull.

For example, Patent No. 10-1104881 discloses a 'ship having a hull designed to reduce the flow resistance', and specifically, a bow and a stern below a draft line. Disclosed is a technique for increasing the propulsion efficiency by reducing the resistance of the fluid in the water by forming a flow control groove or a flow control projection on the side surface between the two.

Meanwhile, ship waves (waves) are waves generated when a ship moves, transversal waves propagating in the form of a diverging wave that propagates the wave to the left and right of the ship, and crosses the wake center line behind the ship. wave).

As described above, as a track is formed due to the wave frequency generated while the ship moves, there is a problem in that it is easy to be exposed to the track tracking radar in the case of a combat ship for combat purposes.

In addition, when a ship moves in a port or a narrow waterway, there is a problem in that the wave frequency affects a small ship or an underwater structure anchored in the port, causing damage.

Specifically, as shown in FIG. 1, the low-speed small sailboat having a hull of round bottom and stern, the waves generated from the bow and the waves generated from the stern are spread out in separate forms.

On the other hand, high-speed sliding single-acting vessel having a stern of the hull of the rectangular shape, as shown in Figure 2, the waves generated from the bow and the waves generated from the stern combined to form a large anti-frequency as well as to increase the speed As the athlete lifts the stern and the stern at the bottom of the straight bottom presses the water from above, it generates more frequency than the low-speed small sailboat with round bottom and stern.

In other words, the wave frequency generated from the bow is generated in a similar form in a small sailing boat or a high-speed sliding single-acting vessel, but the high-speed sliding single-acting vessel generates a lot of frequency due to the square shape of the stern.

In addition, in the case of the high-speed sliding single-acting vessel, as shown in Figure 3, the fluid flowing along the side surface of the hull reaches the end of the rectangular stern, the flow of fluid is broken or the vortex vortex wave In this case, there is a problem in that the driving force of the vessel is hampered by the vortex phenomenon, and the distinctive wave frequency and the track are left.

On the other hand, in the case of the above-described Patent No. 10-1104881, the structure for reducing the fluid resistance in the water is disclosed, but did not solve the problems caused by the above-mentioned anti-frequency, and solve the problem of such a frequency In order to solve this problem, the ship is composed of a multi-hull hull with less occurrence of frequency than a single wave hull that generates a lot of frequency.

However, there is a need for a method for solving the problems of the above-mentioned anti-waves in the ship consisting of a single-acting hull.

[Preceding technical literature]

Registered Patent No. 10-1104881 (Registration date January 04, 2012)

An object of the present invention for solving the problems according to the prior art, by forming a fluid flow portion on the waterline of the ship is generated on the water surface so that the anti-frequency on the surface is guided to the rear center portion of the hull through the fluid flow portion The present invention provides a high-speed sliding type single-acting vessel equipped with a fluid flow reduction portion for reducing the frequency of the wave.

The vessel of the present invention for solving the above technical problem is formed in the form of a groove connecting the side and the rear side on the draft line of the hull, the surface of the anti-frequency flow along the side of the hull It is provided with a fluid flow portion that leads to the rear center portion of the hull.

Preferably, the fluid flow portion may be formed such that the cross-sectional area is gradually increased from the start portion corresponding to the bow portion side of the vessel toward the finish portion corresponding to the stern portion side of the vessel.

Preferably, the fluid flow portion may be formed in a curved shape toward the center of the stern gradually toward the finish portion corresponding to the stern side of the vessel from the start corresponding to the fore side of the vessel.

Preferably, the upper surface of the fluid flow portion is formed with a lower inner height than the outer side, and the side surface of the fluid flow portion is formed in an arc shape, the lower surface of the fluid flow portion is horizontal Can be formed.

Preferably, the stern of the hull is formed in a rectangular shape, provided with a column portion connecting the upper surface and the lower surface of the fluid flow portion corresponding to the corner portion of the stern, the inner surface of the column portion is the side surface of the fluid flow portion It may be formed with the same slope or the same curvature.

Preferably, an extension flow portion protruding at a stern portion adjacent to the rear of the fluid flow portion may be provided so that the anti-frequency passing through the fluid flow portion is further guided to the rear center portion of the hull.

Preferably, the side surface of the fluid flow portion in contact with the anti-frequency and the anti-frequency passing through the fluid flow portion can be further guided to the rear center portion of the hull so that the anti-frequency can be guided to the rear center portion of the hull The side surface of the extension flow portion in contact with the anti-frequency may be formed with the same inclination or the same curvature.

Preferably, the extension flow portion may be formed such that the width is gradually reduced toward the rear with respect to the plane.

Preferably, the stern of the hull may be formed in a rectangular shape.

According to the present invention as described above, by forming a fluid flow portion on the waterline of the ship, the anti-frequency on the water surface is guided to the rear center portion of the hull through the fluid flow portion to reduce the anti-frequency generated on the water surface There is this.

In particular, by reducing the anti-frequency as described above, it is possible to avoid the tracking of the track tracking radar, as well as to prevent the damage of other ships and underwater structures anchored in the port by the anti-frequency and the disturbance of the ecosystem in advance. There is an advantage.

In addition, since the height of the start portion of the fluid flow portion is formed to be lower than the height of the finish portion there is an advantage that can reduce the frequency response in response to the occurrence of a stern trim that lifts the stern and the stern sinks during the propulsion of the vessel.

In addition, as the fluid flow portion and the extension flow portion are formed in an arc shape, there is an advantage that the induction of the anti-frequency can be made smoothly.

In addition, the upper surface of the fluid flow portion is formed with a lower inner height than the outside, based on the widthwise cross section of the fluid flow portion, the side surface of the fluid flow portion is formed in an arc shape of the anti-frequency guided to the fluid flow portion There is an advantage that the offset action can be made smoothly.

1 is a diagram illustrating an anti-frequency generated by a small sailing boat.

FIG. 2 is a view showing the frequency generated by the high speed sliding single acting ship.

3 is a view showing the stern vortex generated by the high speed sliding single acting vessel.

4 is a side view showing a ship according to an embodiment of the present invention.

5 is a perspective view showing a stern portion of the ship according to an embodiment of the present invention.

6 is a view showing an anti-frequency generated by a ship according to an embodiment of the present invention.

7 is a perspective view showing a stern portion of the ship according to another embodiment of the present invention.

8 is a view showing an anti-frequency generated by a ship according to another embodiment of the present invention.

9 is a view showing a specific cross-sectional shape of the fluid flow portion of the ship according to an embodiment of the present invention.

10 is a side view showing a ship according to another embodiment of the present invention.

11 is a perspective view showing a stern portion of the ship according to another embodiment of the present invention.

12 is a perspective view showing a stern portion of the ship according to another embodiment of the present invention.

The present invention can be embodied in many other forms without departing from the spirit or main features thereof. Therefore, the embodiments of the present invention are merely examples in all respects and should not be interpreted limitedly.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms.

The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

The term and / or includes a combination of a plurality of related items or any item of a plurality of related items.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be.

On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this application, the terms "comprise", "comprise", "have", and the like are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification. Or other features or numbers, steps, operations, components, parts or combinations thereof in any way should not be excluded in advance.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art.

Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and are not construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the same or corresponding components will be denoted by the same reference numerals regardless of the reference numerals and redundant description thereof will be omitted.

In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

In the high-speed sliding type single-acting vessel 100 having the anti-frequency reducing fluid flow unit according to an embodiment of the present invention, as shown in FIGS. 4 and 5, the planar shape of the stern is formed in a rectangular shape. .

On the other hand, the high-speed sliding type single-acting vessel 100 having the anti-frequency reducing fluid flow portion according to an embodiment of the present invention is the anti-frequency reducing fluid flow portion to reduce the kelvin wave occurring on the water surface The fluid flow portion 110 is formed on the waterline of the high-speed sliding single-acting vessel 100 provided.

A portion of the anti-frequency generated on the sea surface through the fluid flow portion 110 is guided to the center portion of the hull rear of the high-speed sliding type single-acting vessel 100 provided with the anti-frequency reducing fluid flow portion It is possible to suppress the generation of wakes by solving the vortex phenomenon generated in the.

As shown in FIGS. 4 to 6, the fluid flow part 110 is formed in the form of a groove connecting the side and the rear side on a draft line of the vessel 100. Water surface wave flowing along the hull side of the high-speed sliding type single-acting vessel 100 is provided with a fluid flow portion for reducing the anti-frequency through the groove-shaped fluid flow section 110 is the high-speed sliding single-acting vessel ( 100 may be directed to the central portion of the hull rear.

In particular, the constant fluid flow unit 110 is a constant frequency of the hull generated when the low-speed propulsion of the high-speed sliding type single-acting vessel 100 with the anti-frequency flow fluid portion formed in a rectangular shape of the stern plane of the hull It can lead to the rear center part.

On the other hand, in the case of the high-speed sliding type single-acting vessel 100 equipped with the anti-frequency reducing fluid flow portion having a rectangular shape of the stern in the rectangular shape, the stern trim occurs when the bow is lifted and the stern sinks during the low and medium speed propulsion. In this case, additional acceleration may be smoothly performed by lowering the resistance by the induction action of the anti-frequency caused by the fluid flow unit 110.

Specifically, the fluid flow portion 110 is in contact with the anti-frequency on the sea level side surface 110a for inducing the anti-frequency to the rear center portion of the hull, extending to the lower side of the side surface (110a) side of the hull A lower surface 110b connected to the rear surface and an upper surface 110c connected to the side and the rear surface of the hull may extend to an upper portion of the side surface 110a.

That is, the groove-shaped space formed by the side surface 110a, the lower surface 110b, and the upper surface 110c may function as the fluid flow portion 110.

On the other hand, the fluid flow portion 110, the cross-sectional area is gradually increased toward the finish portion corresponding to the stern portion side of the vessel 100 from the start portion corresponding to the fore side of the vessel 100 and the stern center side It is formed in a curved shape that is curved toward, and through this shape, the anti-frequency on the sea surface can be smoothly guided to the center portion of the hull rear of the high-speed sliding single-acting vessel 100 equipped with the anti-frequency reducing fluid flow portion. have.

More specifically, as shown in FIG. 9, on the basis of the widthwise cross-section of the fluid flow part 110, the upper surface of the fluid flow part 110 is formed to be inclined so as to have a lower inner height than the outside. The side surface of the fluid flow portion 110 is formed in an arc shape.

That is, when looking at the cross-sectional cross section (AA cross section, BB cross section, CC cross section, DD cross section) of the fluid flow portion 110, the cross-sectional area of the fluid flow portion 110 is gradually increased toward the DD cross section from the AA cross section. The upper surface is formed to be inclined so that the inner surface is lower than the outer side, and the side surface of the fluid flow portion 110 is formed in an arc shape, and the lower surface is formed to be substantially flat.

According to the shape of the fluid flow portion 110 as described above, while the anti-frequency on the sea surface flows along the fluid flow portion 110 through a smooth curved shape of the upper surface and the side surface of the fluid flow portion 110 While the vortex is prevented, the high frequency sliding type single-acting vessel 100 having the fluid flow portion for reducing the frequency can be guided smoothly to the center portion of the rear surface of the hull, and as shown in FIG. It can be formed to reduce the occurrence of the wake.

That is, as shown in Figure 2, the waves generated from the bow and the waves generated from the stern do not combine to form a large anti-frequency, as shown in Figure 1, waves generated from the bow and the stern as shown in Figure 1 Are spread out in separate forms to reduce the wake.

On the other hand, the high-speed sliding type single-acting vessel 100 provided with the anti-frequency reducing fluid flow unit according to another embodiment of the present invention, the high-speed sliding type single-acting vessel provided with the anti-frequency reducing fluid flow portion described above ( While having the same or similar fluid flow portion 110 as 100, the fluid flow portion 110 so that the anti-frequency passing through the fluid flow portion 110 can be further guided to the far side portion from the rear center of the hull. An extension flow part 120 protruding is further provided at a stern portion adjacent to the rear of the).

As the extension flow part 120 is formed to be connected to the fluid flow part 110, the frequency of the wave passing through the fluid flow part 110 and the vortex phenomena caused by the anti-frequency are further reduced to further generate the wake. Function to reduce effectively.

That is, the side surface of the fluid flow part 110 in contact with the frequency wave so that the frequency can be guided to the center portion of the hull rear of the high-speed sliding type single-acting vessel 100 is provided with the fluid flow portion for reducing the frequency ( 110a) and the side surface 120a of the extended flow portion 120 in contact with the anti-frequency so that the anti-frequency passing through the fluid flow portion 110 can be further guided to the rear center portion of the hull is the same inclination or the same As the curvature is formed, the frequency is further induced to a portion far from the rear center of the hull so that the frequency naturally consumes energy.

As shown in FIG. 7 and FIG. 8, the extension flow portion 120 is formed such that its width becomes gradually smaller toward the rear, and specifically, the upper and lower widths are formed to be the same, and the thickness is based on a plane. May be formed to gradually become smaller.

On the other hand, Figure 10 is a side view showing a ship according to another embodiment of the present invention, Figure 11 is a perspective view showing a stern portion of the ship according to another embodiment of the present invention, Figure 12 is another view of the present invention A perspective view of a stern portion of the ship according to one embodiment.

10 to 12, the stern is provided with a pillar portion 130 connecting the lower surface 110b and the upper surface 110c constituting the fluid flow portion 110 formed in the hull formed in a rectangular shape Can be.

The pillar portion 130 connects an upper surface and a lower surface of the fluid flow portion corresponding to the stern corner portion of the hull, and the inner surface of the pillar portion 130 has the same inclination or the same as the side surface of the fluid flow portion. It is formed with curvature.

Accordingly, the fluid flow part 110 may be formed in a passage form (or tunnel form) by the side surface 110a, the lower surface 110b, the upper surface 110c, and the inner surface of the pillar portion 130. Can be.

The pillar portion 130 functions to prevent the stern portion (deck portion) of the hull formed on the upper portion of the fluid flow portion 110 is deformed.

Although the present invention has been described with reference to the accompanying drawings, it will be apparent to those skilled in the art that many different and obvious modifications are possible without departing from the scope of the invention from this description. Therefore, the scope of the invention should be construed by the claims described to include many such variations.

Claims

Is formed in the form of a groove connecting the side and the rear side on the draft line of the hull, the fluid flow portion for inducing the water surface wave flowing along the side of the hull to the rear center portion of the hull; High-speed sliding single-acting vessel equipped with the anti-frequency flow fluid flow.
The method of claim 1,

The fluid flow portion,

A high-speed sliding type single-acting vessel provided with a fluid flow section for reducing the anti-frequency, characterized in that the cross-sectional area is gradually increased from the start corresponding to the bow side of the ship toward the finish corresponding to the stern side of the vessel.
The method of claim 1,

The fluid flow portion,

High speed sliding type with a fluid flow portion for reducing the anti-frequency, characterized in that formed in a curved form toward the center of the stern gradually toward the finish portion corresponding to the stern side of the vessel at the start corresponding to the bow side of the vessel Single-acting vessels.
The method of claim 1,

The upper surface of the fluid flow portion, based on the widthwise cross section of the fluid flow portion, the inner surface is formed to be lower than the inner height of the outer side, the side surface of the fluid flow portion is formed in an arc shape, the lower surface of the fluid flow portion is formed horizontally A high-speed sliding single-acting vessel equipped with a fluid flow reduction portion for reducing the frequency.
The method of claim 4,

The stern of the hull is formed in a rectangular shape, and provided with a column portion connecting the upper surface and the lower surface of the fluid flow portion corresponding to the corner portion of the stern, the inner surface of the pillar portion is inclined the same as the side surface of the fluid flow portion Or a high speed sliding type single-acting vessel equipped with a fluid flow reduction portion for reducing the frequency, characterized in that formed with the same curvature.
The method of claim 1,

And an extension flow portion protruding at a stern portion adjacent to the rear of the fluid flow portion so that the anti-frequency passing through the fluid flow portion can be further induced to the rear center portion of the hull. High speed sliding single acting vessel with flow section.
The method of claim 6,

The side surface of the fluid flow portion in contact with the anti-frequency so that the anti-frequency can be guided to the rear center portion of the hull and the anti-frequency through the fluid flow portion can be further guided to the rear center portion of the hull Side surface of the extended flow portion is in contact with the high speed sliding type single-acting vessel provided with a fluid flow portion for reducing the frequency, characterized in that formed in the same slope or the same curvature.
The method of claim 6,

The extended flow portion is a high-speed sliding type single-acting vessel provided with a fluid flow section for reducing the anti-frequency, characterized in that the width is gradually reduced toward the rear with respect to the plane.
The method of claim 1,

The stern of the hull is a high-speed sliding type single-acting vessel provided with a fluid flow portion for reducing the anti-frequency, characterized in that formed in a rectangular shape.