KR100921934B1 - Ground effect enhancement and control device for a WIG craft - Google Patents

Abstract

The present invention is a device that enhances the ground effect by extending the plate-shaped structure existing at the end of the wing wire wings in the upper, lower or up and down directions of the wing, the plate shape in the process of moving or moving on the water surface In the process of folding the structure, but the Wig line hangs on the surface of the water, the plate-shaped structure expands to enhance the ground effect, so that the tip of the wing is submerged in the water as the Wig line moves or moves on the water surface. If you want to increase the lift by raising the lift by lowering the height of the wing of the Hug ship by receiving a great resistance, you can completely block the risk of accidents due to the hull of the Hug ship touching the water surface and effectively enhance the ground effect of the Hug ship. It relates to a device that can.

Wig line, ground effect, lift

Description

Ground effect enhancement and control device for a WIG craft}

The present invention relates to a device for enhancing and controlling the ground effect of the Wig wire.

Wig ship is also called ground effect blade or sea blade. It stands for 'Wing In Ground Craft' and it means super high speed ship moving on the surface of the water. In other words, the Wig ship refers to a high-tech ship combining high-speed ship technology that runs on water at high speed and aviation technology that floats on the surface.

The Wig ship is able to reach speeds of up to 550 km per hour as it uses lift, which is the basic principle of flying, along with the “ground effect”, which increases the lift of air that holds the hull as the wing approaches sea level. In other words, the Wig ship has a plate below the tip of the wing, which traps air between the wing and the surface, making it easier to fly directly above sea level.

The Wig was initially controversial over the question of whether it was a ship or a plane, but was classified as a ship by the International Maritime Organization (IMO) in the late 1990s. The Wig ship is several times faster than a normal ship, but can operate with much less fuel than an airplane and has the advantage of being amphibious. However, since the waves cannot rise from the surface of the water, they are mainly operated in lakes or rivers until now.

The Soviet Union began developing the Soviet Union in the 1960s for military purposes. Since then, Russia, Germany, and China have been developed for maritime rescue and leisure use, but are only partially used.

The introduction of the technology related to the Wig ship dates back to 1993. At the time, Korea-Russia science and technology exchange project was introduced to Korea. In 2002, the Korea Maritime Research Institute succeeded in piloting a four-seater leisure Wig ship after joint research with a domestic venture company. The Wig ship, which is called the `` sea gull symbol, '' can fly from 2m above sea level to 120km / h and consume less than 50% of a motorboat.

However, the Ministry of Maritime Affairs and Fisheries recently attracted attention after it plans to develop a large Wig ship (200 passengers) with a total project cost of 120 billion won. In fact, the Wig ship, which floats up to 5 meters above sea level, has been classified as a ship by the agreement of the International Maritime Organization (IMO) and the International Civil Aviation Organization (ICAO), but the principle of movement is much like an airplane. It is not unlike airplanes, in that they can lift at the wings and float in the air. The difference is that, unlike airplanes, it makes the most of the “ground effect”. The ground effect is a phenomenon in which more lift occurs than usual due to the trapped air under the wing when the wing is close to the surface.

In fact, it is impossible for a Wig ship to float like an airplane without a ground effect. Of course, if the plane flies low near the surface of the water or the ground, it will have the same ground effect as the Wig line, so the lift will be generated more efficiently on the wing. The problem is that airplanes are very dangerous if they come in contact with water, except for watercraft and flying boats. In other words, the principle of floating in the air is similar, but the Wig ship, which was originally designed to float on water, and the aircraft designed to fly in the air, have different directions of evolution.

After all, the greatest weakness of the Wigline comes from this ground effect. Due to the ground effect, the Wig ship flying at high speed may swing up and down as if the front part of the plane is waved. If the vibration becomes stronger, the plane may crash, collide with the surface of the water or be overturned in the air. In addition, the early Wig ship design technology can operate in lakes or rivers, but there is a limit in that it is impossible to take off and land due to the unstable ground effect at high altitudes. Fortunately, these problems are being solved one by one due to the development of control technology. However, the large Wig ship has yet to be developed.

If the research of the Korea Maritime Institute succeeds and the large wig ship is put to practical use, it is expected to drastically reduce the transportation time and cost. It is possible to operate at speeds of 200 ~ 500km / h, which is not possible with existing vessels, and it is only half as much as existing aircrafts in terms of fuel cost. In addition, the Wig ship does not have to attract large facilities such as airports like airplanes, so it is impossible to exclude the possibility of drastic changes in Northeast Asian logistics. In particular, there is no better way to connect passengers and air cargo to China, Yantai, Qingdao, Dalian, etc., as China does not have airport facilities but there is a lot of logistics. If the logistics can be solved with half of the airfare while operating Korea, the east coast of China and Japan within 1 to 3 hours, the ripple effect will be enormous. Of course, the mountains to be overcome are high and rough by then, but one thing is clear: a time when high-tech science and technology can dictate national competitiveness.

However, the existing wig wire is fixed in the shape of the wing, in order to obtain a greater ground effect, it is necessary to lower the altitude of the wig wire hanger or lower the position of the main wing as much as possible in the design stage.

The lift increase due to the ground effect is determined by h / c, where h is the distance between the wing's trailing edge and the surface, and c is the length of the wing's cord (the straight line between the leading and trailing edges). The smaller the h / c, the more the lift due to the ground effect increases exponentially. That is, the ground effect can be obtained by lowering the height of the wing (h) in the case of the same wing, and increasing the code length (c) of the wing when the wing height difference is not large. Can be.

When designing a wig line, an advantage should be taken into account. When applying a design that lowers the position of the wing relative to the hull (such as increasing the length of the cord of the wing or lowering the absolute position of the wing), the wig line floats on the surface of the water. Due to the effects of the tip of the wing being submerged in water, the wing may be damaged due to the great resistance of water in the state of launching or launching. In severe cases, the wing may be damaged. There are limits to the design that lowers the position.

In addition, even if you want to increase the lift by lowering the altitude of the Hug ship, there is a possibility that an accident may occur when the hug of the Wig ship hits the water, which also has a limit.

The present invention has been proposed in order to solve the above problems, the plate-shaped structure existing at the end of the wig wire wing extends in both the top, bottom or top and bottom of the wing to enhance the ground effect, the wig wire is water surface In the process of moving or launching from the ground, the plate-shaped structure is folded, but in the process of the Wig-line navigating above the surface, the plate-shaped structure is expanded to enhance the ground effect. In the process, the tip of the wing is submerged in the water and receives a great resistance from water, so that the wing is damaged or the hug of the ship is in contact with the water to lower the altitude of Hangzhou. To provide a device that can block the entire area and effectively enhance the ground effect of the wig line. Ever it shall be.

Other objects and advantages of the present invention will be described below, which are not limited to the matters set forth in the claims and the disclosure of the embodiments thereof, but also to the broader ranges by means and combinations within the range readily recited therefrom. Add that it will be included.

In order to achieve the above object, the present invention is a device for enhancing or adjusting the ground effect in a state symmetrically installed on the left and right wings of the wig wire, plate shape is installed orthogonal to the wing of the wig wire at the edge of the wing end of the wig wire As the structure of the end plate having a groove which is opened downward so that the expansion plate 120 can be inserted into the end plate 110; Expansion plate 120 for sliding in the vertical direction in the state of being inserted into the end plate 110 as a plate-shaped structure; A hydraulic cylinder 130 for sliding the extension plate support bar 140 inserted into the body in a state of being installed at the lower end of the wing end of the wig line in a vertical direction by hydraulic pressure; And an elongated rod-shaped structure, the upper end of which is inserted into the hydraulic cylinder 130 and the lower end of which is attached to the expansion plate 120, and when sliding movement in the vertical direction by the operation of the hydraulic cylinder 130. In connection with this, the expansion plate 120 connected to the lower end also proposes a ground effect enhancement and control device of the wig line using an extension plate support rod including an extension plate support rod 140 to induce a sliding movement in the vertical direction ( Type 1) .

In another aspect, the present invention, the device to enhance or adjust the ground effect in a state symmetrically installed on the left and right of the wing of the wig wire, the plate-shaped structure that is installed orthogonal to the wing of the wig wire at the edge of the wing end of the wig wire expansion plate on the body End plate 210 having a groove that is open upwards so that the 220 is inserted; Expansion plate 220 for sliding in the vertical direction in the state of being inserted into the end plate 210 as a plate-shaped structure; Hydraulic cylinder 230 for sliding the expansion plate support bar 240 is inserted into the body in the state of being installed on the upper surface of the blade end of the Wig line in the vertical direction by the hydraulic pressure; And an elongated rod-shaped structure, the lower end of which is inserted into the hydraulic cylinder 230 and the upper end of which is attached to the expansion plate 220, and performs sliding movement in the vertical direction by the operation of the hydraulic cylinder 230. In connection with this, the expansion plate 220 connected to the upper end also proposes a ground effect reinforcement and control device of the wig line using an extension plate support rod including a support rod 240 to induce a sliding movement in the vertical direction ( Type 2) .

In another aspect, the present invention, the device to enhance or adjust the ground effect in a state symmetrically installed on the left and right of the wing of the wig wire, the plate-shaped structure which is installed orthogonal to the wing of the wig wire at the edge of the wing end of the wig wire upper body An end plate 310 having a groove open in a vertical direction so that the expansion plate 321 and the lower expansion plate 322 can be inserted; An upper extension plate 321 that slides through a groove extending upward of the end plate 310 in a state of being inserted into the end plate 310 as a plate-shaped structure; A lower extension plate 322 that slides through a groove extending downward of the end plate 310 in a state of being inserted into the end plate 310 as a plate-shaped structure; An upper hydraulic cylinder 331 configured to slide the upper extension plate support bar 341 inserted into the body in a state of being installed on an upper surface of the wing end of the wig line in a vertical direction by hydraulic pressure; A lower hydraulic cylinder 332 for sliding the lower extension plate support bar 342 inserted into the body in a state of being installed on the lower surface of the wing tip of the wig line in a vertical direction by hydraulic pressure; As a long rod-shaped structure, the lower end is inserted into the upper hydraulic cylinder 331 and the upper end is attached to the upper extension plate 321, the sliding movement in the vertical direction by the operation of the upper hydraulic cylinder 331. In case, in connection with this, the upper extension plate 321 connected to the upper end of the upper extension plate support rod 341 to induce a sliding movement in the vertical direction; And an elongated rod-shaped structure, the upper end of which is inserted into the lower hydraulic cylinder 332 and the lower end of which is attached to the lower extension plate 322, and slides in the vertical direction by the operation of the lower hydraulic cylinder 332. In this case, in connection with this, the lower extension plate 322 connected to the lower end also presents a ground effect enhancement and control device of the Wig line using an extension plate support rod including a lower extension plate support rod 342 for inducing a sliding movement in the vertical direction. ( Type 3)

According to the present invention, since the ground effect enhancer and control device does not touch the surface when the wig wire floats or moves on the surface of the water, the resistance applied to the hull can be prevented, and the device can be prevented from being damaged. By maximizing the ground effect and controlling it, it is possible to ensure the operational safety of the Wig ship.

Other effects of the present invention, as well as those described in the above-described embodiments and claims of the present invention, as well as potential effects that may occur within the range that can be easily estimated therefrom and potential advantages that contribute to industrial development It will be added that it will be covered by a wider scope.

When the end of the wig ship extends downward and the wing approaches the surface of the wing, the air at the bottom of the wing is compressed to produce an air cushion effect. As a result, the pressure difference between the upper and the lower wing increases, and the ground effect is enhanced. Figure 6 is an example of verifying the effect of the downward expansion of the end plate as described above, shows the calculation results by Fluent, a commercial code for computational fluid dynamics calculation. As shown in FIG. 6, when the distance from the bottom of the end plate to the ground is H, even if the distance between the wing and the ground is constant, the closer the end plate is to the ground, the greater the ratio of the lift due to the ground effect.

In Figure 6, the lift (lift) is a force generated by the pressure difference between the upper and lower wings according to the Bernoulli principle, causing the wig wire to rise above the surface of the water. The size of lift (L) is

L = CL ρ V2 S / 2 [L: lift (lb), CL: lift coefficient, ρ: density (slug / ft3), V: speed (ft / sec), S: wing area (ft2)] It can be represented as

Drag is a force that impedes the movement of a wig wire forward, and at the wing, fuselage, landing gear, strut, stabilizer, and other structures of the wig wire Occurs. Drag that does not help lift is called parasite drag. The magnitude of drag (D) is

D = CD ρ V2 S / 2 [D: drag (lb), CD: drag coefficient, ρ: density (slug / ft3), V: velocity (ft / sec), S: wing area (ft2)] (The above formula calculates the drag on the wing, and when calculating the drag of the whole Wig ship, CD and S should be considered for the whole Wig ship).

And, the ratio of lift and drag at a given angle of attack is called the 'lift to drag ratio (L / D)' at the angle of attack, which is the CL / CD. Wig ship's flight efficiency is increased.

On the other hand, when the end plate is extended upward during the operation of the wig ship, the vortex generated at the tip of the wing is reduced, thereby increasing the efficiency of the wig ship, which is determined by the ratio of the two ports. Figure 7 is an example of verifying the effect of the upward expansion of the end plate as described above, and shows the calculation results by Fluent, a commercial code for computational fluid dynamics calculation. As shown in FIG. 7, when the end plate is extended upward, even if the distance between the wing and the ground is constant, the lift ratio due to the ground effect is increased (H / C = 0.2).

Accordingly, the present invention is to propose three types of devices that can enhance the ground effect of the Wig ship and increase the operating efficiency by extending the end plate of the Wig ship downward or upward through a simple operation. It will be described below in detail with the focus on the device according to 'Type 1', but the device according to the 'Type 2' and the 'Type 3' will be described mainly on the difference from the device according to the 'Type 1', and overlapping descriptions will be avoided. The device according to 'Type 1' extends the end plate of the Wig wire downward, the device according to 'Type 2' extends the end plate of the Wig wire upward and the device according to the 'Type 3' It is a device that can enhance the ground effect of the Wig ship and increase the operating efficiency by simultaneously extending the end plate of the Wig ship upward and downward.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals have the same reference numerals as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, the following will describe a preferred embodiment of the present invention, but the technical idea of the present invention is not limited thereto and may be variously modified and modified by those skilled in the art.

One. Type  1 (see Figure 2)

First, the present invention is a device for enhancing or adjusting the ground effect in a state symmetrically installed on the left and right of the wing of the wig line, the body as a plate-shaped structure that is installed orthogonal to the wing of the wig line at the edge of the wing end of the wig line End plate 110 has a groove that is open downward to be inserted into the expansion plate 120; Expansion plate 120 for sliding in the vertical direction in the state of being inserted into the end plate 110 as a plate-shaped structure; A hydraulic cylinder 130 for sliding the extension plate support bar 140 inserted into the body in a state of being installed at the lower end of the wing end of the wig line in a vertical direction by hydraulic pressure; And an elongated rod-shaped structure, the upper end of which is inserted into the hydraulic cylinder 130 and the lower end of which is attached to the expansion plate 120, and when sliding movement in the vertical direction by the operation of the hydraulic cylinder 130. In connection with this, the expansion plate 120 connected to the lower end also proposes a ground effect reinforcement and control device of the wig line using an extension plate support rod that includes an extension plate support rod 140 to guide the sliding movement in the vertical direction.

End plate 110 is a plate-shaped structure that is installed orthogonal to the wing of the Wig line at the edge of the wing end of the Wig line (see Fig. 1). The body of the end plate 110 has a groove that is opened downward so that the expansion plate 120 can be inserted.

The expansion plate 120 is a plate-like structure to slide in the vertical direction in the state inserted into the end plate 110. In this case, if the size of the groove existing in the body of the end plate 110 is exactly the size of the expansion plate 120, due to the friction between the groove and the expansion plate 120, the expansion plate 120 cannot smoothly slide the groove, If the size of the expansion plate 120 is too large compared to the size of the expansion plate 120 during the sliding movement there is a risk that it may be separated from the end plate 110 to be careful.

The hydraulic cylinder 130 serves to slide the expansion plate support bar 140 inserted into the body in the up-down direction by hydraulic pressure in the state installed at the lower end of the wing end of the wig line.

In general, the hydraulic cylinder is a reciprocating linear movement of the hydraulic actuator that converts the pressure energy of the hydraulic oil into mechanical energy, which is a single acting oil hydraulic cylinder that has only one direction controlled by the hydraulic cylinder ) And a double acting oil hydraulic cylinder in which the direction controlled by the hydraulic pressure is bidirectional. In addition, there are a cylinder shaft center fixed type in which a piston or a cylinder body only reciprocates linearly according to a hydraulic cylinder supporting method, and a cylinder shaft core swing type in which a cylinder shaft center oscillates.

Hydraulic cylinder 130 according to the present invention, since the one end is fixed to the wing of the wig wire is to linearly reciprocate the expansion plate support rod 140 corresponding to the piston through the other end, the form of a cylinder shaft fixed type single-acting cylinder It can be implemented as.

In order to achieve structural or operational stability, two hydraulic cylinders 130 are preferably installed in the front and rear directions of the blades on the lower surface of the blade tip of the wig line.

The extension plate support rod 140 is a rod-shaped structure that is elongated, the upper end is inserted into the hydraulic cylinder 130 and the lower end is attached to the expansion plate 120. As a result, when the expansion plate support rod 140 is sliding in the vertical direction by the operation of the hydraulic cylinder 130, the expansion plate 120 connected to the lower end is also sliding in the vertical direction in connection with this. That is, the expansion plate 120 slides upward in connection with this when the expansion plate support rod 140 moves upward, and enters the inside of the groove of the end plate 110, and moves downward in connection with the expansion plate support rod 140 downward. The sliding is to come out of the groove of the end plate (110).

When the expansion plate 120 comes out of the groove of the end plate 110 as a whole, the end plate 110 is extended downward. As a result, the wing of the wig wire becomes close to the surface of the water, and the air on the lower surface of the wing is compressed, so that the effect of the air cushion is generated, so that the pressure difference between the upper and lower wings increases, and the ground effect is enhanced.

At this time, the upper and lower lengths of the expansion plate 120 is preferably limited so as not to contact the water surface even when the expansion plate 120 slides downward to the outside of the groove of the end plate 110 as much as possible. If the expansion plate 120 comes into contact with the water surface, the expansion plate 120 may be damaged by water resistance.

On the other hand, the hydraulic cylinder 130 is preferably to control the displacement or the speed at which the expansion plate support rod 140 sliding by adjusting the hydraulic pressure.

In this case, in the hydraulic cylinder 130, when the wig wire is moved or started at the water surface, the expansion plate 120 is maintained downward by keeping the expansion plate 120 fully inserted into the groove of the end plate 110. There is no risk of being damaged by contact with the water surface in the down state, and by expanding the expansion plate 120 to the outside of the groove of the end plate 110 only when the wig line is floating in the water surface to enhance the ground effect.

In addition, the hydraulic cylinder 130 can properly adjust the insertion or expansion of the expansion plate 120 according to the sea state (the distance between the wing and the water surface), if the sea state in which the Wig line is very rough, expansion plate With the 120 fully inserted into the groove of the end plate 110 or left slightly extended, the end plate 120 is extended if the sea state in which the Wig wire is suitable for use with the device according to the present invention. Extend the outside of the groove of 110 to maximize the ground effect.

In addition, the hydraulic cylinder 130 may control the expansion state of the expansion plate 120 which is installed symmetrically on the left and right wings according to the movement state of the wig wire to promote the overall movement stability of the wig wire.

2. Type  2 (see Figure 3)

Secondly, the present invention is a device for augmenting or adjusting the ground effect in a state symmetrically installed on the left and right sides of the wing of the wig line, the body as a plate-shaped structure that is installed orthogonal to the wing of the wig line at the edge of the wing end of the wig line End plate 210 has a groove that is upwardly open so that the expansion plate 220 can be inserted; Expansion plate 220 for sliding in the vertical direction in the state of being inserted into the end plate 210 as a plate-shaped structure; Hydraulic cylinder 230 for sliding the expansion plate support bar 240 is inserted into the body in the state of being installed on the upper surface of the blade end of the Wig line in the vertical direction by the hydraulic pressure; And an elongated rod-shaped structure, the lower end of which is inserted into the hydraulic cylinder 230 and the upper end of which is attached to the expansion plate 220, and performs sliding movement in the vertical direction by the operation of the hydraulic cylinder 230. In connection with this, the expansion plate 220 connected to the upper end also proposes a ground effect reinforcement and control device of the wig line using an extension plate support rod including an extension plate support rod 240 to induce a sliding movement in the vertical direction.

End plate 210 is a plate-shaped structure (Fig. 1) is installed orthogonal to the wing of the Wig line at the edge of the wing end of the Wig line, the body has a groove that is open upwards so that the expansion plate 220 can be inserted .

The expansion plate 220 is a plate-like structure to slide in the vertical direction in the state inserted into the end plate 210.

The hydraulic cylinder 230 serves to slid the expansion plate support rod 240 inserted into the body in the state of being installed on the upper end of the wing end of the wig line in the vertical direction by the hydraulic pressure. Hydraulic cylinder 230, since the one end is fixed to the wing of the Wig wire is to linearly reciprocate the expansion plate support rod 240 corresponding to the piston through the other end, it can be implemented in the form of a cylinder axial fixed type single acting cylinder have.

In order to achieve structural or operational stability, two hydraulic cylinders 230 are preferably provided in the front and rear directions of the blades on the upper surface of the blade tip of the wig line.

The extension plate support rod 240 is a long rod-shaped structure, the lower end is inserted into the hydraulic cylinder 230 and the upper end is attached to the expansion plate 220. As a result, when the expansion plate support bar 240 is sliding in the vertical direction by the operation of the hydraulic cylinder 230, the expansion plate 220 connected to the upper end is also sliding in the vertical direction in connection with this. That is, the expansion plate 220 slides upward in connection with this when the expansion plate support rod 240 moves upward, and comes out of the groove of the end plate 210, and moves downward in connection with the expansion plate support rod 240 downward. By sliding it will be entered into the groove of the end plate 210.

When the expansion plate 220 comes out of the groove of the end plate 210 as a whole, the end plate 210 is extended upward. As a result, the vortices generated at the tip of the wing of the Wig ship are reduced, thereby increasing the efficiency of the Wig ship, which is determined by the ratio of lift.

Meanwhile, the hydraulic cylinder 230 controls the displacement or speed at which the expansion plate support rod 240 slides by adjusting the hydraulic pressure, and expands the expansion plate 220 symmetrically installed on the left and right sides of the wing according to the motion state of the wig line. It is desirable to control the state individually to achieve the overall motion stability of the wig line.

3. Type  3 (see Figure 4)

Thirdly, the present invention is an apparatus for augmenting or adjusting the ground effect in a state symmetrically installed on the left and right sides of a wing of a wig line, the body as a plate-shaped structure that is installed orthogonal to the wing of the wig line at the edge of the wing end of the wig line An end plate 310 having a groove open in the vertical direction so that the upper expansion plate 321 and the lower expansion plate 322 can be inserted; An upper extension plate 321 that slides through a groove extending upward of the end plate 310 in a state of being inserted into the end plate 310 as a plate-shaped structure; A lower extension plate 322 that slides through a groove extending downward of the end plate 310 in a state of being inserted into the end plate 310 as a plate-shaped structure; An upper hydraulic cylinder 331 configured to slide the upper extension plate support bar 341 inserted into the body in a vertical direction in a state of being installed on an upper surface of the blade tip of the wig line in a vertical direction by hydraulic pressure; A lower hydraulic cylinder 332 for sliding the lower extension plate support bar 342 inserted into the body in a state of being installed on the lower surface of the wing tip of the wig line in a vertical direction by hydraulic pressure; As a long rod-shaped structure, the lower end is inserted into the upper hydraulic cylinder 331 and the upper end is attached to the upper extension plate 321, the sliding movement in the vertical direction by the operation of the upper hydraulic cylinder 331. In case, in connection with this, the upper extension plate 321 connected to the upper end of the upper extension plate support rod 341 to induce a sliding movement in the vertical direction; And an elongated rod-shaped structure, the upper end of which is inserted into the lower hydraulic cylinder 332 and the lower end of which is attached to the lower extension plate 322, and slides in the vertical direction by the operation of the lower hydraulic cylinder 332. In this case, in connection with this, the lower extension plate 322 connected to the lower end also presents a ground effect enhancement and control device of the Wig line using an extension plate support rod including a lower extension plate support rod 342 for inducing a sliding movement in the vertical direction. do.

End plate 310 is a plate-shaped structure (Fig. 1) is installed orthogonal to the wing of the Wig line at the edge of the wing end of the Wig line, the upper and lower plates 321 and lower expansion plate 322 can be inserted into the body There is a groove open in the direction (see FIG. 5).

The upper extension plate 321 and the lower extension plate 322 is a plate-shaped structure, the upper extension plate 321 is a sliding movement through the groove extending above the end plate 310 in the state inserted into the end plate 310. The lower extension plate 322 is slid through a groove extending downward of the end plate 310 in a state of being inserted into the end plate 310 (see FIG. 5).

The upper hydraulic cylinder 331 serves to slide the upper extension plate support rod 341 inserted into the body in the vertical direction in the state of being installed on the wing end of the wig line in the vertical direction by the hydraulic pressure, the lower hydraulic cylinder 332 is Sliding movement of the lower extension plate support bar 342 inserted into the body in the state of being installed on the lower surface of the wing end of the wig line in the vertical direction by hydraulic pressure.

The upper hydraulic cylinder 331 and the lower hydraulic cylinder 332, the upper end plate support rod 341 and the lower extension plate support bar 342 corresponding to the piston through the other end in a state where one end is fixed to the wing of the wig wire. Since the linear reciprocating motion, it can be implemented in the form of a cylinder axial fixed type single-acting cylinder.

In this case, it is preferable that the upper hydraulic cylinder 331 and the lower hydraulic cylinder 332 are respectively provided in the front and rear directions of the blades on the upper and lower surfaces of the blade tip of the Wig wire in order to achieve structural or operational stability.

The upper extension plate support rod 341 is a rod-shaped structure that is elongated and the lower end is inserted into the upper floating pressure cylinder 331 and the upper end is attached to the upper extension plate 321. As a result, when the upper extension plate support rod 341 performs a sliding movement in the vertical direction by the operation of the upper hydraulic cylinder 331, the upper extension plate 321 connected to the upper end in this connection also slides in the vertical direction. That is, the upper extension plate 321 slides upward in connection with this when the upper extension plate support rod 341 moves upward, and comes out of the groove of the end plate 310, and is connected with the upper extension plate support rod 341 when moved downward. By sliding downward to enter the inside of the groove of the end plate 310.

As the upper extension plate 321 comes out of the groove of the end plate 310, the end plate 310 expands upward as a whole. As a result, the vortices generated at the tip of the wing of the Wig ship are reduced, thereby increasing the efficiency of the Wig ship, which is determined by the ratio of lift.

The lower extension plate support rod 342 is a rod-shaped structure that is elongated and the upper end is inserted into the lower hydraulic cylinder 332 and the lower end is attached to the lower extension plate 322. As a result, when the lower extension plate support bar 342 is slid in the vertical direction by the operation of the lower hydraulic cylinder 332, the lower extension plate 322 connected to the lower end is also slid in the vertical direction in connection with this. That is, the lower extension plate 322 slides upward in connection with this when the lower extension plate support rod 342 moves upward, and enters into the groove of the end plate 310, and when the lower extension plate support rod 342 moves downward, Sliding downward so that it comes out of the groove of the end plate 310.

As the lower extension plate 322 extends out of the groove of the end plate 310, the end plate 310 is extended downward when viewed as a whole. As a result, the wing of the wig wire becomes close to the surface of the water, and the air on the lower surface of the wing is compressed, so that the effect of the air cushion is generated, so that the pressure difference between the upper and lower wings increases, and the ground effect is enhanced.

In this case, the upper and lower lengths of the lower extension plate 322 are preferably limited so that the lower extension plate 322 does not come into contact with the water surface even when the lower extension plate 322 slides downward and descends to the outside of the groove of the end plate 310 as much as possible. If the lower extension plate 322 is in contact with the water surface, the lower extension plate 322 may be damaged by water resistance.

The upper hydraulic cylinder 331 and the lower hydraulic cylinder 332 preferably controls the displacement or speed at which the upper extension plate support rod 341 and the lower extension plate support rod 342 slide by adjusting the hydraulic pressure.

At this time, the upper hydraulic cylinder 331 and the lower hydraulic cylinder 332 is to control the displacement or the speed at which the upper extension plate support rod 341 or the lower extension plate support rod 342 sliding independently by adjusting the hydraulic pressure independently of each other. Accordingly, the degree of insertion or expansion of the upper extension plate 321 and the lower extension plate 322 may be different or the same. For example, the upper extension plate 321 is inserted but the lower extension plate 322 is extended. (It is also possible to reverse the case), a variety of states can be derived, such as when the upper expansion plate 321 and the lower expansion plate 322 is inserted or expanded at the same time.

In particular, the lower hydraulic cylinder 332 is the lower expansion plate 322 by maintaining the state in which the lower extension plate 322 is completely inserted into the groove of the end plate 310 when the wig wire is moving or the water in the water surface. There is no risk of being damaged by contact with the water while descending downwards, and the ground extension plate 322 is appropriately extended to the outside of the groove of the end plate 310 only when the wig line is injured in the water, thereby enhancing the ground effect. .

In addition, the lower hydraulic cylinder 332 can properly adjust the insertion or expansion of the lower extension plate 322 according to the sea state (the distance between the wing and the water surface), if the sea state in which the Wig line is very rough The lower extension plate 322 is completely inserted into the groove of the end plate 310 or left only slightly extended, and the lower extension plate 322 when the sea state in which the Wig line is suitable for use of the device according to the present invention is used. ) Extends to the outside of the groove of the end plate 310 as much as possible to derive the maximum ground effect.

In addition, the upper hydraulic cylinder 331 and the lower hydraulic cylinder 332 individually controls the expansion state of the upper expansion plate 321 and the lower expansion plate 322 which are symmetrically installed on the left and right sides according to the movement state of the wig wire. It also improves the overall motion stability of the wig wire.

The above description is merely illustrative of the technical idea of the present invention, and various modifications, changes, and substitutions may be made by those skilled in the art without departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical spirit of the present invention, but to describe the present invention, and the scope of the technical idea of the present invention is limited by the embodiments and the accompanying drawings. no. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

1 shows an end plate located at the end of the Wig wire and Wig wire wings.

2 shows an apparatus according to 'Type 1' of the present invention.

3 shows an apparatus according to 'Type 2' of the present invention.

4 shows an apparatus according to 'Type 3' of the present invention.

FIG. 5 shows a state in which both the upper and lower extension plates are inserted into the end plate in the apparatus according to 'Type 3' of the present invention.

Figure 6 shows that the lift ratio increases when the end plate is extended downward.

Figure 7 shows that the lift ratio increases when the end plate is extended upward.

<Description of Major Symbols in Drawing>

110, 210, 310: end plates

120, 220: extension plate, 321: upper extension plate, 322: lower extension plate

130, 230: hydraulic cylinder, 331: upper hydraulic cylinder, 332: lower hydraulic cylinder

140, 240: extension plate support rod, 341: upper extension plate support rod, 342: lower extension plate support rod

Claims (22)

It is a device that enhances or adjusts the ground effect in the state of being installed symmetrically to the left and right of the wing of the Wig line, A plate-shaped structure which is installed orthogonal to the wing of the Wig line at the edge of the wing end of the Wig line, the end plate 110 having a groove open downward to allow the expansion plate 120 to be inserted into the body; Expansion plate 120 for sliding in the vertical direction in the state of being inserted into the end plate 110 as a plate-shaped structure; A hydraulic cylinder 130 for sliding the extension plate support bar 140 inserted into the body in a state of being installed at the lower end of the wing end of the wig line in a vertical direction by hydraulic pressure; And As the rod-shaped structure elongated, the upper end is inserted into the hydraulic cylinder 130 and the lower end is attached to the expansion plate 120, when the sliding movement in the vertical direction by the operation of the hydraulic cylinder 130 Expansion plate support rod 140 to guide the expansion plate 120 is also connected to the lower end in a sliding motion in the vertical direction in connection with this Ground effect enhancement and control device of the Wig wire using an extension plate support rod comprising a. The method of claim 1, The expansion plate 120, When the extension plate support rod 140 moves upwards, it slides upwards in connection with this, and enters into the groove of the end plate 110. When the extension plate support rods 140 moves downward, it slides downwardly in connection with this end. Ground effect reinforcement and control device of the wig line using an extension plate support rod, characterized in that coming out of the groove of the end plate 110. The method of claim 2, The vertical length of the expansion plate 120 is, The expansion plate 120 is a sliding effect of the ground effect reinforcement and control device of the wig line using an extension plate support bar, characterized in that it is limited to not contact with the water surface even if the maximum sliding out of the groove outside of the end plate 110. The method of claim 1, The hydraulic cylinder 130, Ground effect reinforcement and control device of the wig line using an extension plate support rod, characterized in that two wings are installed in the front and rear direction of the wing at the bottom of the wing end of the wig line. The method of claim 1, The hydraulic cylinder 130, Ground effect enhancement and control device of the wig line using an extension plate support bar, characterized in that for controlling the displacement or speed by which the expansion plate support bar 140 sliding by adjusting the hydraulic pressure. The method of claim 1, The hydraulic cylinder 130, Increasing the ground effect of the wig line using the extension plate support bar, characterized in that to adjust the overall movement stability of the wig line by individually controlling the expansion state of the extension plate 120 symmetrically installed on the left and right wings according to the movement state of the wig line Regulator. It is a device that enhances or adjusts the ground effect in the state of being installed symmetrically to the left and right of the wing of the Wig line, A plate-shaped structure that is installed orthogonal to the wing of the Wig line at the edge of the wing end of the Wig line, the end plate 210 having a groove open upward to allow the expansion plate 220 to be inserted into the body; Expansion plate 220 for sliding in the vertical direction in the state of being inserted into the end plate 210 as a plate-shaped structure; Hydraulic cylinder 230 for sliding the expansion plate support bar 240 is inserted into the body in the vertical direction by the hydraulic pressure in the state installed on the upper end of the wing end of the Wig line; And As a long rod-shaped structure, the lower end is inserted into the hydraulic cylinder 230 and the upper end is attached to the expansion plate 220, when the sliding movement in the vertical direction by the operation of the hydraulic cylinder 230 Expansion plate support rod 240 to induce the expansion plate 220 connected to the upper end in this way also sliding movement in the vertical direction Ground effect enhancement and control device of the Wig wire using an extension plate support rod comprising a. The method of claim 7, wherein The expansion plate 220, When the extension plate support rod 240 moves upwards, it slides upwards in connection with this to come out of the groove of the end plate 210, and when the extension plate support rods 240 move downward, it slides downwardly in connection with this end. Ground effect reinforcement and control device of the wig line using an extension plate support rod, characterized in that entering into the groove of the end plate 210. The method of claim 7, wherein The hydraulic cylinder 230, Ground effect reinforcement and control device of the wig line using an extension plate support rod, characterized in that the two wings are installed in the front and rear direction of the wing on the wing end of the wig line. The method of claim 7, wherein The hydraulic cylinder 230, Ground effect enhancement and control device of the wig line using an extension plate support rod, characterized in that for controlling the displacement or speed by which the extension plate support rod 240 sliding by adjusting the hydraulic pressure. The method of claim 7, wherein The hydraulic cylinder 230, Increasing the ground effect of the wig line using the extension plate support bar, characterized in that to adjust the overall movement stability of the wig line by individually controlling the expansion state of the expansion plate 220 symmetrically installed on the left and right wings according to the movement state of the wig line Regulator. It is a device that enhances or adjusts the ground effect in the state of being installed symmetrically to the left and right of the wing of the Wig line, A plate-shaped structure that is installed orthogonal to the wing of the Wig line at the edge of the wing end of the Wig line, the end plate having a groove that is open in the vertical direction so that the upper extension plate 321 and the lower extension plate 322 can be inserted into the body ( 310); An upper extension plate 321 that slides through a groove extending upward of the end plate 310 in a state of being inserted into the end plate 310 as a plate-shaped structure; A lower extension plate 322 that slides through a groove extending downward of the end plate 310 in a state of being inserted into the end plate 310 as a plate-shaped structure; An upper hydraulic cylinder 331 configured to slide the upper extension plate support bar 341 inserted into the body in a state of being installed on an upper surface of the wing end of the wig line in a vertical direction by hydraulic pressure; A lower hydraulic cylinder 332 for sliding the lower extension plate support bar 342 inserted into the body in a state of being installed on the lower surface of the wing tip of the wig line in a vertical direction by hydraulic pressure; As a long rod-shaped structure, the lower end is inserted into the upper hydraulic cylinder 331 and the upper end is attached to the upper extension plate 321, the sliding movement in the vertical direction by the operation of the upper hydraulic cylinder 331. In case, in connection with this, the upper extension plate 321 connected to the upper end of the upper extension plate support rod 341 to induce a sliding movement in the vertical direction; And An elongated rod-shaped structure, the upper end of which is inserted into the lower hydraulic cylinder 332 and the lower end of which is attached to the lower extension plate 322, the sliding movement in the vertical direction by the operation of the lower hydraulic cylinder 332 In this case, the lower extension plate support rod 342 which induces the sliding movement in the vertical direction is also connected to the lower extension plate 322 connected to the lower end in connection with it. Ground effect enhancement and control device of the Wig wire using an extension plate support rod comprising a. The method of claim 12, The upper extension plate 321 is, When the upper extension plate support rod 341 moves upwards, the upper extension plate support rod 341 slides upward in connection with this to move out of the groove of the end plate 310, and when the upper extension plate support rod 341 moves downwards, the upper extension plate support rod 341 slides downward in connection with it. Ground effect reinforcement and adjustment device of the wig line using an extension plate support rod, characterized in that entering into the groove of the end plate 310. The method of claim 12, The lower extension plate 322, When the lower extension plate support rod 342 moves upwards, it slides upwards in connection with this, and enters into the groove of the end plate 310, and when the lower extension plate support rods 342 moves downward, it slides downwardly in connection with this. Ground effect enhancement and control device of the wig line using an extension plate support rod, characterized in that coming out of the groove of the end plate 310. The method of claim 14, The vertical length of the lower extension plate 322 is, The lower expansion plate 322 is a sliding effect of the ground effect enhancement and control device of the wig line using an extension plate support bar, characterized in that it is limited to not contact with the water surface even if the maximum sliding out of the groove of the end plate 310. The method of claim 12, The upper hydraulic cylinder 331, Ground effect reinforcement and control device of the wig line using an extension plate support rod, characterized in that the two wings are installed in the front and rear direction of the wing on the wing end of the wig line. The method of claim 12, The lower hydraulic cylinder 332, Ground effect reinforcement and control device of the wig line using an extension plate support rod, characterized in that two wings are installed in the front and rear direction of the wing at the bottom of the wing end of the wig line. The method of claim 12, The upper hydraulic cylinder 331, Ground effect enhancement and control device of the wig line using an extension plate support bar, characterized in that for controlling the displacement or speed by which the upper extension plate support bar (341) sliding by adjusting the hydraulic pressure. The method of claim 12, The lower hydraulic cylinder 332, Ground effect enhancement and control device of the wig line using an extension plate support rod, characterized in that for controlling the displacement or speed by which the lower extension plate support bar 342 sliding by adjusting the hydraulic pressure. The method of claim 12, The upper hydraulic cylinder 331, Increasing the ground effect of the Wig line using the extension plate support rod, characterized in that to control the overall movement stability of the Wig line by individually controlling the expansion state of the upper extension plate 321 symmetrically installed on the left and right wings according to the movement state of the Wig line And regulators. The method of claim 12, The lower hydraulic cylinder 332, Increasing the ground effect of the wig line using the extension plate support bar, characterized in that to adjust the overall movement stability of the wig line by individually controlling the expansion state of the lower extension plate 322 is installed symmetrically on the left and right wings according to the movement state of the wig line And regulators. The method of claim 12, The upper hydraulic cylinder 331 or the lower hydraulic cylinder 332, Device for enhancing and adjusting the ground effect of a wig line using an extension plate support rod, characterized in that the upper extension plate support bar (341) or the lower extension plate support bar (342) to individually control the displacement or speed by sliding the hydraulic pressure independently.

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