KR20230066854A - Apparatus for towing model ship - Google Patents

Abstract

An embodiment is a model ship towing device that controls a model ship in an ocean engineering tank, comprising: a traction carriage; a towing device; and a rotating device installed on the traction carriage to rotate the towing device, wherein the towing device moors a model ship using a soft mooring method, the traction carriage controls the ship speed of the model ship, and the rotating device controls an angle of entrance of the model ship. Accordingly, the model ship towing device can more and move model ships to effectively measure the movements of the model ships against external factors such as waves in model tests to evaluate the movements and seakeeping performance of a ship.

Description

Model ship towing device {APPARATUS FOR TOWING MODEL SHIP}

The embodiment relates to a model ship towing device. In detail, in order to evaluate the movement and seaworthiness of a ship with a ship speed against external factors such as waves among various tests performed in a marine engineering tank, it relates to a model ship towing device that reproduces the movement of a model ship by towing a model ship. will be.

In order to evaluate the movement of the hull while the actual ship is sailing on irregular seas, a model ship scaled down in the same shape is manufactured, and then a test (SEAKEEPING TEST) is performed on the movement of the ship, seaworthy performance (SEAKEEPING), etc. in a water tank. .

For example, a linear test is conducted to ensure that the ship has a hull shape suitable for the purpose. In the linear test, before actually manufacturing a ship, a model ship according to the law of similarity is manufactured, and various tests using the model ship are performed in a tank such as a towing tank to predict the performance of the actual ship, and then the test results are calculated. Design the ship to have the optimal shape by reflecting it in the design of the ship.

However, the towing tank has a different test purpose from the marine engineering tank, and since it does not build facilities to implement external factors such as multidirectional waves, currents, and wind, it implements irregular sea conditions such as seaworthiness, etc. There are limitations in evaluating .

In order to overcome the above limitations, an ocean engineering tank implementing external factors such as multidirectional waves, unlike a towing tank, may be used. Here, the marine engineering water tank is one of the engineering water tanks and can be defined as a water tank that implements an environment of external factors such as waves, wind, and tides.

Accordingly, surge, sway, and heave positional motions and rotational motions of yaw, pitch, and roll caused by the external factors occur in the model ship, and in the test, the model ship deviates from the path due to these movements, thereby preventing the movement of the model ship. A problem arises in that 6-DOF motion cannot be measured.

Accordingly, the model ship must be moored while allowing the degree of freedom of motion of the model ship for the external factor, and various data must be secured in response to the external factor.

Accordingly, a model ship towing device that includes the above conditions in a model test with ship speed and can control the ship speed and heading angle of the model ship is required.

The embodiment provides a model ship towing device for mooring and moving a model ship so as to effectively measure the movement of the model ship with respect to external factors such as waves in a model test to evaluate the motion and seaworthiness of the model ship.

The problems to be solved by the embodiments are not limited to the problems mentioned above, and other problems not mentioned herein will be clearly understood by those skilled in the art from the description below.

The above problem is a model ship towing device for controlling a model ship in a marine engineering tank, comprising: a towing tank; towing device; and a rotating device installed on the towing vehicle to rotate the towing device, the towing device mooring the model ship in a soft mooring method, and the towing vehicle to control the speed of the model ship; The rotating device is achieved by a model ship towing device that controls the heading angle of the model ship.

Here, the rotating device includes an angle adjusting device disposed to be supported by the towing vehicle, and an actuator that rotates the angle adjusting device, and a traction device connected to the angle adjusting device may interlock with the rotation of the angle adjusting device. there is.

In addition, the traction device is formed as a structure having a length longer in the front-back direction than the width in the left-right direction, and further includes a rotation auxiliary guide installed on the towing vehicle to secure rotational stability of the traction device, and the rotation auxiliary guide may include an arc-shaped frame.

And, the traction device includes a support member guided by the rotation auxiliary guide, the support member includes a rotation frame rotatably disposed on the frame of the traction device, and a wheel disposed on the rotation frame, When the traction device rotates, the wheels may move along the arc-shaped frame.

The towing device may include a frame, a mooring tension adjusting device installed on the frame, and a wire portion connecting the mooring tension adjusting device and the model ship, and the wire portion may include a wire and an elastic member.

Here, the frame includes a main frame disposed in the longitudinal direction, a central frame disposed at the center of the main frame, and a moor frame in which the mooring tension adjusting device is installed, and the moor frame is movable to the main frame. can be placed.

The mooring tension adjusting device includes a body movably or rotatably disposed on the moor frame through a fastening member, a drum portion around which the wire is wound, and a control device controlling the tension of the wire by controlling the drum portion. And, the drum unit may be movably disposed on one side of the body.

The drum unit includes a drum in which a portion of the wire is wound, a roller disposed in contact with another portion of the wire, and a drum frame in which the drum and the roller are installed, and the drum frame is movable in a vertical direction. It can be installed on the body.

The mooring tension adjusting device further includes a sensor for detecting the tension of the wire part, and the control device includes a gear device connected to the drum and an actuator connected to the gear device, and through a signal of the sensor An actuator may drive the gear device.

Meanwhile, when the model ship is accelerated or decelerated by the tow tank, the traction device may further include a fixing device for restricting a position of the model ship.

Here, the fixing device includes a cylinder, an arm rotated by the cylinder, and a wire connected between the arm and the model ship, and the model ship is restrained by the tension of the wire according to the driving of the cylinder. can

Meanwhile, the traction device may further include a measurement device for measuring six degrees of freedom of the model ship and an imaging device for capturing motion of the model ship.

The embodiment can moor and move a model ship so that the movement of the model ship can be effectively measured with respect to external factors such as waves in a model test to evaluate the motion and seaworthiness of the ship. In detail, the embodiment can improve the degree of freedom of testing for various tests by changing the ship speed and heading angle of the model ship.

In the embodiment, while mooring the model ship in a soft mooring method to secure the degree of freedom of the model ship, the degree of freedom of motion of the model ship MS with respect to external factors can be secured through a mooring tension adjusting device. . Accordingly, the accuracy of data information measured by the embodiment may be improved.

In the embodiment, the position of the mooring tension adjusting device may be changed according to the model of the model ship MS, so that the versatility of the model ship towing device for model ships MS of various sizes may be expanded.

Various but beneficial advantages and effects of the embodiment are not limited to the above-described content, and may be more easily understood in the process of describing specific embodiments of the embodiment.

1 is a view showing a model ship towing device according to an embodiment,
2 is a front view showing a model ship towing device according to an embodiment;
3 is a plan view showing an arrangement relationship between a model ship towing device and a model ship according to an embodiment;
4 is a conceptual diagram showing a mooring relationship between a model ship towing device and a model ship according to an embodiment;
5 is a view showing the position of the model ship according to the operation of the rotating device of the model ship towing device according to the embodiment;
6 is a perspective view showing a frame of a towing device constituting a model ship towing device according to an embodiment;
7 is a view showing a mooring tension adjusting device and an imaging device disposed in a model ship towing device according to an embodiment;
8 is a front view showing a mooring tension adjusting device disposed in a model ship towing device according to an embodiment;
9 is a side view illustrating a mooring tension adjusting device disposed in a model ship towing device according to an embodiment;
10 is a view showing the operation of a fixing device disposed in a model ship towing device according to an embodiment,
11 is a view showing a rotation auxiliary guide of a model ship towing device according to an embodiment,
FIG. 12 is a cross-sectional view and a partially enlarged view taken along line AA of FIG. 11 .

Since the present invention can make various changes and have various embodiments, specific embodiments are illustrated and described in the drawings. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Terms including ordinal numbers, such as first and second, may be used to describe various components, but the components are not limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a second element may be termed a first element, and similarly, a first element may be termed a second element, without departing from the scope of the present invention. The terms and/or include any combination of a plurality of related recited items or any of a plurality of related recited items.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

In the description of the embodiment, in the case where one component is described as being formed “on or under” another component, the upper (above) or lower (below) (on or under) includes both those formed by direct contact between two components or by indirectly placing one or more other components between the two components. In addition, when expressed as 'on or under', it may include the meaning of not only the upward direction but also the downward direction based on one component.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

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 to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in this application, it should not be interpreted in an ideal or excessively formal meaning. don't

Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings, but the same or corresponding components regardless of reference numerals are given the same reference numerals, and overlapping descriptions thereof will be omitted.

In order to evaluate the motion and seaworthiness of a model ship prepared for the purpose of a ship, the model ship towing device according to the embodiment may reproduce the movement of the model ship in a water tank.

At this time, in the model test in the marine engineering tank, the model ship towing device can reproduce various ship speeds and heading angles by towing the model ship to be tested, so that various data of the model ship for external factors such as waves can be obtained. do.

That is, since motion and seaworthiness performance under specific conditions must be measured in a free state of the model ship, the model ship towing device according to the embodiment must secure a degree of freedom for the movement of the model ship.

In particular, the model ship towing device moored the model ship in a soft mooring method, so that the degree of freedom of motion of the model ship can be secured during testing.

Furthermore, since the model ship towing device is designed to change the position of the mooring point, it is possible to secure versatility for model ships of various sizes.

In addition, the model ship towing device minimizes the effect of acceleration or deceleration of the model ship on the test through an acceleration/deceleration fixing device that controls the attitude of the model ship during acceleration/deceleration of the model ship.

1 is a view showing a model ship towing device according to an embodiment, FIG. 2 is a front view showing a model ship towing device according to an embodiment, and FIG. 3 is a layout relationship between a model ship towing device and a model ship according to an embodiment. FIG. 4 is a conceptual diagram showing a mooring relationship between a model ship towing device and a model ship according to an embodiment, and FIG. 5 is a view showing a position of a model ship according to an operation of a rotating device of a model ship towing device according to an embodiment. . Here, the X direction shown in FIGS. 1 to 3 may mean a front and rear direction, the Y direction may mean a left-right direction or a width direction, and the Z direction may indicate a vertical direction or a vertical direction. At this time, the fore-and-aft direction may be divided into a front where the bow of the model ship MS is disposed and a rear where the stern is disposed. In addition, reference numeral 'T' in FIG. 1 indicates a water tank, and 'W' may indicate a fluid contained in the water tank (T). Also, reference numeral 'C' in FIG. 3 may indicate the center of rotation of the traction device.

1 to 4, the model ship towing device according to the embodiment includes a towing vehicle 10, a towing device 20, and rotation installed on the towing vehicle 10 to rotate the towing device 20. Device 30 may be included. In addition, the model ship towing device may further include an auxiliary rotation guide 40 provided to secure rotational stability of the towing device 20 .

As shown in FIG. 4 , the towing device 20 may moor the model ship MS in a soft mooring method using a wire 310 and an elastic member 320 such as a spring. . Accordingly, the model ship towing device may apply a restoring force to motion generated by encountering waves or the like to the model ship MS while allowing the model ship MS to navigate.

At this time, since some configurations of the towing device 20 are installed to enable position changes of mooring points, the model ship towing device according to the embodiment can secure versatility for model ships of various sizes.

The tow tank 10 may be disposed in the fluid W of the water tank T and may move through a driving unit (not shown).

In addition, the towing vehicle 10 may be connected to the traction device 20 via the rotation device 30. Accordingly, the towing vehicle 10 may control the ship speed of the model ship MS by moving the traction device 20 . For example, the tow tank 10 may cause the model ship MS to sail at a constant speed. Alternatively, the towing vehicle 10 may accelerate or decelerate the model ship MS to a predetermined ship speed.

The rotating device 30 is installed on the towing vehicle 10 and rotates the towing device 20, thereby rotating the model ship MS moored to the towing device 20.

Referring to FIG. 2 , the rotating device 30 may include an angle adjusting device 31 disposed on the towing vehicle 10 and an actuator 32 rotating the angle adjusting device 31 . At this time, the traction device 20 connected to the angle adjusting device 31 may rotate in conjunction with the rotation of the angle adjusting device 31 . Here, the angle adjusting device 31 may be a turn table to which a precise index is applied. Also, the actuator 32 may be referred to as a first actuator and may include a motor and a gear device.

Therefore, as shown in FIG. 5 , as the rotating device 30 rotates the towing device 20 based on the center of rotation C, the model ship towing device moves the model ship MS. You can control the bow angle. At this time, the rotation device 30 may adjust the bow within a range of ±30 degrees with respect to the forward and backward directions of the model ship MS, and various angles may be allowed by extending the rotation assistance device.

Accordingly, the model ship towing device makes it possible to secure data according to the heading angle while adjusting the bow of the model ship MS to various angles with respect to the external factor through the rotating device 30 . For example, the marine engineering water tank (T) can reproduce waves of frontal waves, side waves, and oblique waves (45 degrees), and the model ship towing device adjusts the bow in various directions in response to the waves to adjust the bow. make it possible to obtain the following data.

Referring to FIG. 2 , the towing device 20 includes a frame 100, the mooring tension adjusting device 200 installed in the frame 100, and the mooring tension adjusting device 200 and the model ship MS. It may include a wire unit 300 connecting the. Here, the wire unit 300 may moor the model ship MS in a soft mooring method through a combination of a wire and an elastic member such as a spring.

In addition, the traction device 20 may further include a sensor 400 for measuring the tension of the wire part 300 .

In addition, the traction device 20 may further include an acceleration/deceleration fixing device 500 for mooring stability of the model ship MS during acceleration/deceleration of the towing vehicle 10 .

The frame 100 may be formed as a structure having a length in a front-back direction longer than a width in a left-right direction corresponding to the model ship MS. At this time, the frame 100 may be formed as a lattice structure using a plurality of bar-shaped steel materials.

6 is a perspective view illustrating a frame of a towing device constituting a model ship towing device according to an embodiment.

Referring to FIG. 6, the frame 100 includes a main frame 110 disposed in the longitudinal direction, a central frame 120 disposed at the center of the main frame 110, and the mooring tension adjusting device 200. It may include a moor frame 130 to be installed. In addition, the frame 100 may include a support frame 140 supporting the main frame 110 .

Here, the moor frame 130 is disposed on the main frame 110 to be movable in the longitudinal direction or the front-back direction to secure the versatility of the soft mooring method for model ships (MS) of various sizes. do.

The main frame 110 may be formed of a beam, which is a steel structure in the shape of two bars. In this case, the two bar-shaped structures may be spaced apart from each other in the left and right directions. In addition, the main frame 110 may be disposed along the front-back direction at the initial setting. Here, the main frame 110 may be referred to as a first frame.

The central frame 120 may be disposed at the center of the frame 100 . Accordingly, a rotation center C may be disposed in the central frame 120 . Here, the central frame 120 may be referred to as a second frame.

Also, one side of the rotating device 30 may be connected to the central frame 120 . Accordingly, the frame 100 can be rotated at a predetermined angle by the rotating device 30 .

The moor frame 130 may be movably disposed on the main frame 110 . Accordingly, after adjusting the position of the moor frame 130 corresponding to the size of the model ship MS, the moor frame 130 may be fixed to the main frame 110 through a fixing member. Here, the Moor frame 130 may be referred to as a third frame.

Therefore, the position of the mooring tension adjusting device 200 should be changed according to the model of the model ship MS, and the model ship pulling device is moored through the moor frame 130 whose position is adjusted in the forward and backward direction. The position of the tension adjusting device 200 in the front-back direction can be adjusted. Accordingly, the model ship towing device can expand the versatility of the model ship towing device for model ships MS of various sizes.

Meanwhile, one side of the fixing device 500 may be connected to the moor frame 130 .

The support frame 140 may support the main frame 110 and may be spaced apart from the central frame 120 . For example, the support frame 140 may be disposed between the main frame 110 composed of two bar-shaped structures to support the main frame 110 . As shown in FIG. 6 , the support frame 140 may be formed as a bar-shaped structure and may be spaced apart from the central frame 120 . Here, the support frame 140 may be referred to as a fourth frame.

In addition, the other side of the fixing device 500 may be connected to the support frame 140 . Accordingly, the support frame 140 may support the fixing device 500 .

Meanwhile, the frame 100 may further include a support member 150 guided by the rotation auxiliary guide 40 .

Referring to FIG. 6 , one side of the support member 150 is installed on the support frame 140 , and the other side of the support member 150 may be movably disposed along the rotation auxiliary guide 40 . Accordingly, when the frame 100 rotates, the rotation auxiliary guide 40 and the support member 150 can distribute the load applied to the rotating device 30 .

The mooring tension adjusting device 200 may be connected to the model ship MS through the wire part 300 and may adjust the mooring tension of the wire part 300 . That is, since there is a limit to mooring the model ship MS while ensuring the movement of the model ship MS only with the wire part 300, the model ship towing device controls the external factors through the mooring tension adjusting device 200. A flexible response of the movement of the line (MS) can be induced.

At this time, as shown in FIG. 3, the mooring tension adjusting device 200 may be disposed spaced apart from each other at four points on the front, rear, left, and right sides.

Meanwhile, the mooring tension adjusting device 200 may be movably disposed on the frame 100 for the aforementioned versatility.

7 is a view showing a mooring tension adjusting device and an imaging device disposed in a model ship towing device according to an embodiment, and FIG. 8 is a front view showing a mooring tension adjusting device disposed in a model ship towing device according to an embodiment. 9 is a side view illustrating a mooring tension adjusting device disposed in a model ship towing device according to an embodiment.

Referring to FIG. 7 , the mooring tension adjusting device 200 may be movably disposed on the moor frame 130. For example, the mooring tension adjusting device 200 may be fixed to the moor frame 130 after adjusting the position in the left and right direction, the position in the vertical direction and the rotation angle through the fastening member 50. Here, clamps, brackets, etc. may be used as the fastening member 50 .

Therefore, the model ship towing device controls forward and backward movement of the moor frame 130 in which the mooring tension adjusting device 200 is installed, horizontal and vertical movement of the mooring tension adjusting device 200, and rotation. By changing the mooring position through the mooring position, the versatility can be improved.

7 to 9, the mooring tension adjusting device 200 includes a body 210 movably or rotatably disposed on the moor frame 130 through a fastening member 50, and the wire part 300 It may include a drum unit 220 around which the wire 310 is wound, and a controller 230 controlling the tension of the wire 310 by controlling the drum unit 220 . Here, the drum unit 220 may be disposed on the body 210 to be movable in a vertical direction.

Accordingly, the mooring tension adjusting device 200 improves the freedom of movement of the model ship MS compared to the soft mooring method in which the model ship MS is moored using only the wire part 300. Mooring resistance to the external factors can be minimized. Here, the wire 310 of the wire unit 300 may be referred to as a first wire.

The body 210 may be formed in a rod shape disposed in a vertical direction. In addition, the body 210 may be fixed through the fastening member 50 after moving vertically and horizontally and rotating. For example, after setting the body 210 by moving and rotating it according to the model of the model ship MS, the body 210 is moved to a predetermined position of the moor frame 130 through the fastening member 50. can be fixed on

The drum unit 220 includes a drum 221 on which a portion of the wire is wound, a roller 222 disposed in contact with another portion of the wire 310, and the drum 221 and the roller 222. It may include the drum frame 223 installed.

The drum 221 may be rotatably disposed on the drum frame 223 . A part of the wire 310 may be wound around the drum 221 .

Accordingly, the tension of the wire 310 may be adjusted while the wire 310 is wound (wound) or unwound (unwound) by the rotation of the drum 221 . At this time, as shown in FIGS. 7 and 9, since the drum frame 223 on which the drum 221 is disposed can move in the vertical direction, the soft mooring using only the wire part 300 It is possible to minimize mooring resistance against external factors while improving the degree of freedom of movement of the model ship MS compared to the method.

Meanwhile, the drum unit 220 may be composed of only the drum 221 and the drum frame 223. However, since the drum 221 rotates while being movable up and down, the unwinding or winding start position of the wire 310 wound on the drum 221, that is, the mooring point, may vary. Here, the mooring point is located on the outer circumferential surface of the drum 221 and may be a variable position that varies with the vertical movement and rotation of the drum 221, and is defined as a winding start point or an unwind start point of the wire 310. can At this time, the wire 310 may be disposed in the tangential direction of the drum 221 by tension.

Therefore, the drum unit 220 can minimize the change of the mooring point through the roller 211 . Accordingly, the effect on the tension of the wire 310 can be minimized.

The roller 222 may be rotatably disposed on the drum frame 223 . Also, the roller 222 may be disposed in front of the drum 221 . Also, a portion of the wire 310 may contact the roller 222 .

Accordingly, when the wire 310 wound on the drum 221 is wound or unwound, the roller 222 can support the wire 310 while minimizing a change in the mooring point.

The drum frame 223 may be movably disposed on the body 210 . Also, the drum frame 223 may support the drum 221 and the roller 222 .

The controller 230 may control the drum 221 . Furthermore, the controller 230 may control the drum 221 based on a measurement value of the sensor 400 measuring the tension of the wire 310 .

In addition, the control device 230 may control the drum unit 220 to adjust the tension of the wire 310 and then perform locking.

7 to 9, the control device 230 may be composed of a gearbox 231 and a handle 232, but is not necessarily limited thereto. For example, the control device 230 may be composed of a gear box 231 and an actuator that drives a gear inside the gear box 231 . Here, the actuator of the control device 230 may be referred to as a second actuator.

The gear box 231 may be formed by a combination of gear devices, and a worm gear may be used. Therefore, when the tension of the wire 310 is adjusted using the handle 232 or the second actuator, the gearbox 231 primarily prevents reversal up to a certain torque to loosen the wire 310. can prevent

The second actuator may drive the gearbox 231 by a signal including a target value transmitted based on the measurement value detected by the sensor 400 . Accordingly, since feedback control is possible through the second actuator, the control device 230 can automatically adjust the tension applied to the wire 310 . Here, a motor may be used as the second actuator. Accordingly, the second actuator can prevent the wire 310 from loosening by secondarily preventing reversal up to a predetermined torque.

On the other hand, when the model ship MS is moored using only the wire part 300, the model ship MS is excessively pushed when the model ship MS accelerates, and even if the model ship MS reaches the target speed, the model ship MS stays for a certain period of time. Problems affecting the movement of (MS) may occur. Also, when the model ship MS decelerates, a problem of being excessively pushed in the opposite direction may occur.

Therefore, the model ship towing device can minimize the effect of the acceleration/deceleration of the model ship MS by using the acceleration/deceleration fixing device 500 . For example, the fixing device 500 restrains the model ship MS before the model ship MS reaches the ship speed for the sailing test or when decelerating after completing the test, so that the model ship MS ) can be minimized.

10 is a view illustrating an operation of a fixing device disposed in a model ship towing device according to an embodiment.

2, 3 and 10, the fixing device 500 includes a cylinder 510, an arm 520 rotating by the cylinder 510, and a rope 530 connected to the arm 520. can include Here, since a wire may be used instead of the rope 530 of the fixing device 500, the rope 530 may be referred to as a second wire.

The cylinder 510 may be rotatably coupled to the support frame 140 . In detail, the support frame 140 may include a pivot support member 141, and one side of the cylinder 510 may be rotatably coupled to the pivot support member 141 in the vertical direction. Here, a pneumatic cylinder may be provided as the cylinder 510 . Also, the rotation support member 141 of the support frame 140 may be called a first rotation support member.

The arm 520 may be formed in a bar shape, the cylinder 510 may be connected to one side of the arm 520, and the rope 530 may be connected to the other side.

And, the arm 520 can be rotatably coupled to the moor frame 130 . In detail, the moor frame 130 may include a rotation support member 131, and the arm 520 may be rotatably coupled to the rotation support member 131, and the rotation center C1 can include Here, the rotation support member 131 of the moor frame 130 may be called a second rotation support member.

Meanwhile, as shown in FIG. 10 , the center of rotation C1 may be disposed spaced apart from the center of the arm 520 to implement an eccentric pivot.

The rope 530 may connect the arm 520 and the model ship MS.

Looking at the operation of the fixing device 500 with reference to FIG. 10 , the arm 520 of the fixing device 500 may rotate by driving the cylinder 510 .

As shown in (a) and (b) of FIG. 10 , when the cylinder 510 pushes the arm 520, the rope 530 hangs and does not affect the motion of the model ship MS. do.

As shown in (c) of FIG. 10 , when the cylinder 510 pulls the arm 520 , tension is formed in the rope 530 as the rope 530 is pulled. Accordingly, the movement of the model ship MS in the forward and backward directions is restricted by the fixing device 500 . Therefore, the fixing device 500 can minimize the influence of the acceleration/deceleration of the model ship MS through such an operation.

Meanwhile, the traction device 20 may further include a measuring device 600 and an imaging device 700 to secure data on the movement of the model ship MS.

The measurement device 600 may be installed on the frame 100 and may measure the 6-DOF motion of the model ship MS. Here, the 6 degrees of freedom may include movement in 3 axes (X-axis, Y-axis, Z-axis) and rotation about 3 axes (X-axis, Y-axis, Z-axis).

A 6-DOF measurement camera may be used as the measurement device 600 .

The imaging device 600 may be installed on the frame 100 and may capture or image the movement of the model ship MS. Here, a video camera may be used as the imaging device 600 .

A part of the load may be concentrated on the rotation device 30 by adjusting the ship speed or the bow angle of the model ship MS.

In particular, when the frame 100 is formed as a structure having a longer length in the front-back direction than the width in the left-right direction corresponding to the model ship MS, an excessive load on the angle adjusting device 31 and safety of the structure can cause very vulnerable problems.

Thus, the model ship towing device can secure rotational stability of the towing device 20 by using the rotation auxiliary guide 40 .

Referring to FIGS. 1 and 2 , the auxiliary rotation guide 40 may be disposed between the towing vehicle 10 and the towing device 20 . In addition, rotational stability of the traction device 20 can be secured by distributing the load of the traction device 20 through coupling with the rotation auxiliary guide 40 to the support member 150 .

FIG. 11 is a view showing a rotation auxiliary guide of a model ship towing device according to an embodiment, and FIG. 12 is a cross-sectional view and a partially enlarged view taken along line A-A of FIG. 11 .

5 and 11, when the traction device 20 rotates, the rotation auxiliary guide 40 has an arc shape so as to guide and support the support member 150 of the traction device 20. A guide frame 41 may be included. Here, the guide frame 41 may be called a guide support frame.

Referring to FIG. 12 , the frame 41 may be formed to have an 'I' shaped cross section. Further, the support member 150 may include a rotation frame 151 rotatably disposed on the support frame 140 of the frame 100 and a wheel 152 disposed on the rotation frame.

Accordingly, considering that the wheel 152 can move along the arc-shaped frame 151 when the traction device 20 rotates, the rotation auxiliary guide 40 is the traction device 20 ) It is possible to guide the traction device 20 at the same time as distributing the load.

Here, the arc-shaped frame 41 as the rotation auxiliary guide 40 is used as an example, but is not necessarily limited thereto. For example, an LM guide may be used as the auxiliary rotation guide 40 .

Although the above has been described with reference to the embodiments of the present invention, those skilled in the art can variously modify and modify the present invention within the scope not departing from the spirit and scope of the present invention described in the claims below. You will understand that it can be changed. And, it should be construed that the differences related to these modifications and changes are included in the scope of the present invention, which is defined in the appended claims.

10: towing vehicle 20: towing device
30: rotation device 40: rotation auxiliary guide
100: frame 110: main frame
130: moor frame 140: support frame
200: mooring tension control device
210: body 220: drum part
221: drum 222: roller
230: control device
300: wire part 310: wire
320: elastic member
400: sensor
500: fixture 510: cylinder
520 cancer
600: measuring device
700: imaging device

Claims (12)

In the model ship towing device for controlling the model ship in the marine engineering tank,
towing car;
towing device; and
A rotation device installed on the towing vehicle to rotate the traction device,
The towing device moored the model ship in a soft mooring method,
The tow tank controls the ship speed of the model ship,
The rotating device controls the heading angle of the model ship. According to claim 1,
The rotating device includes an angle adjusting device disposed to be supported by the towing vehicle, and an actuator that rotates the angle adjusting device,
A model ship towing device in which the towing device connected to the angle adjusting device interlocks with the rotation of the angle adjusting device. According to claim 1,
The traction device is formed of a structure having a longer length in the front and rear direction than the width in the left and right directions,
Further comprising a rotation auxiliary guide installed on the towing vehicle to secure rotational stability of the towing device,
The auxiliary rotation guide includes an arc-shaped frame. According to claim 3,
The traction device includes a support member guided by the rotation auxiliary guide,
The support member includes a rotation frame rotatably disposed on the frame of the traction device, and wheels disposed on the rotation frame,
When the towing device rotates, the wheel moves along the arc-shaped frame. According to claim 1,
The traction device
frame,
A mooring tension control device installed on the frame, and
A wire portion connecting the mooring tension adjusting device and the model ship,
The wire part includes a wire and an elastic member. According to claim 5,
the frame
The main frame arranged in the longitudinal direction;
A central frame disposed at the center of the main frame, and
Including a moor frame in which the mooring tension adjusting device is installed,
The moor frame is movably disposed on the main frame. According to claim 6,
The mooring tension control device
A body movably or rotatably disposed on the moor frame through a fastening member,
A drum part on which the wire is wound, and
And a control device for controlling the drum unit to adjust the tension of the wire,
The drum unit is movably disposed on one side of the body. According to claim 7,
the drum part
A drum on which a part of the wire is wound,
a roller disposed in contact with another portion of the wire, and
It includes a drum frame in which the drum and the roller are installed,
The drum frame is installed on the body to be movable in the vertical direction. According to claim 8,
The mooring tension adjusting device further includes a sensor for sensing the tension of the wire part,
The control device includes a gear unit connected to the drum, and an actuator connected to the gear unit,
The model ship towing device wherein the actuator drives the gear device through a signal from the sensor. According to claim 5,
When the model ship is accelerated or decelerated by the towing vehicle, the model ship towing device further comprises a fixing device for restraining a position on the model ship. According to claim 10,
fixture is,
cylinder,
An arm that rotates by the cylinder, and
A wire connected between the arm and the model ship,
A model ship towing device in which the model ship is restrained by the tension of the wire according to the driving of the cylinder. According to claim 1,
A measuring device for measuring 6 degrees of freedom of the model ship, and
A model ship towing device further comprising an imaging device that captures an image of the movement of the model ship.

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