JPH03214036A - Wave making apparatus - Google Patents

Abstract

PURPOSE:To decrease the number of parts and to reduce the cost by reciprocating receiving tools which are juxtaposed in the horizontal direction at a specified interval back and forth, and forming a continuous wave making surface with wave making plates and flexible plates (FSP). CONSTITUTION:An FSP plate 19 is provided so as to close a part between neighboring wave making plates 15a and 15b. One end part of the FSP 19 is fixed to the wave making plate 15a with screws 20. The other end part is attached to a plate receiving hole 18 of the wave making plate 15b so that the end part can be freely inserted and removed. In order to form waves, the rotating phase of each servomotor 27 is shifted, and pin receiving metal fittings 11a and 11b are reciprocated back and forth. Then, a continuous wave making surface is formed of the wave making plates 15a and 15b and the FSPs 19 without forming ring waves at the front side. In this way, even if the angle of the advancing direction of the formed wave (the line which agrees with the reciprocating directions of the receiving metal fittings 11a and 11b is used as a reference line, and the angle is formed between this line and a line which agrees with the advancing direction of the wave) is set in a broad range, the number of parts such as the wave making plates 15a and 15b, a driving device and the like can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a wave-making device that generates waves in a finite-length closed circuit, such as a water tank.

[Conventional technology]

It is generally known that wave-making devices are used for research on ships and offshore structures.

Conventionally, as this type of wave making device, one shown in FIG. 7 has been adopted. To explain this based on the figure, the wave-making device shown in the figure includes a large number of wave-making plates 1 that are arranged in parallel in one direction and move back and forth in the front and rear directions. A wave-forming surface 2 that generates waves diagonally forward is formed on the front end face of these wave-forming plates 1. In addition, the symbol A in the figure is the wave-making plate 1.
It is a wave generated by

In the wave-making device configured in this way, the drive device (
By moving each wave-making plate 1, which partially faces the water tank (not shown), back and forth in the front and back direction, waves can be generated diagonally toward the front as shown by A. .

[Problem to be solved by the invention]

By the way, in the conventional wave-making device, since the wave-making surface 2 is formed only by the wave-making plate 1, each wave-making plate 1
As shown in FIG. 8, when the wave-making plates la and lb were moved independently, a step 3 was formed between two adjacent wave-making plates la and lb. As a result, as shown in the figure, a ring unibeam 4 is generated near the edge portion 3a of the step 3, resulting in a problem in that the wave-making performance deteriorates. In addition, wave creation Fi1
The fact that the wave-forming surface 2 is formed only by the angle of the traveling direction of the generated waves (the line that coincides with the advancing and retreating direction of the wave-making plate l is taken as the reference line, and this reference line and the line that coincides with the traveling direction of the wave) When setting θ (the angle to be created) over a wide range, it is necessary to set the unit width of the wave-making plate 1 to a small dimension to make the wave-making surface 2 as close to a smooth continuous surface as possible. Moreover, the number of parts such as the driving device for the wave-making plate 1 is increased, resulting in an increase in cost.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a wave-making device that can reduce costs and improve the reliability of wave-making.

(Means for Solving the Problems) The wave-making bag according to the present invention includes a large number of holders that are arranged in parallel at predetermined intervals in the horizontal direction and move back and forth in the front and rear directions, and two of these holders that are adjacent to each other. It is equipped with a large number of wave-making plates that are connected to two holders and swing in the front-rear direction. It is composed of wave-making plates that rotate around an extending axis, and the interval between two adjacent wave-making plates among these wave-making plates is closed by a flexible seal plate, and these flexible seal plates are used as wave-making plates. One end is fixed to the other end, and the other end is slidably provided.

[For production]

In the present invention, a continuous wave-forming surface can be formed by the wave-forming plate and the flexible seal plate by moving the receiver forward and backward.

〔Example〕

EMBODIMENT OF THE INVENTION Hereinafter, the structure etc. of this invention will be explained in detail by the Example shown in the figure.

FIG. 1 is a perspective view showing the entire wave making device according to the present invention, and FIGS. 2 to 4 are a plan view, a front view, and a side view showing essential parts of the wave making device according to the present invention. In the figure, what is designated by reference numeral 11 is a large number of pin receivers that are moved back and forth in the front and back direction by a drive arm 12, and are arranged in parallel at predetermined intervals in the horizontal direction. A long hole 13 extending horizontally is provided on the front end side of these bottle receiving fittings 11, and a bottle hole 14 opening in the vertical direction is provided on the other side. Reference numeral 15 designates a large number of wave-forming plates that swing in the front-rear direction and are connected to two mutually adjacent bottle holders 11a and 11b, for example, of the bottle holder 11. These wave-making plates 15 are rectangular wave-making plates in which one connecting portion slides in the parallel direction of the bottle holder 11, and the other connecting portion rotates around an axis extending in the vertical direction. It is configured.

That is, one example of these wave-making plates 15 has a pin 16 integrally provided on the upper and lower end surfaces thereof as one connecting portion that slides into the elongated hole 13, and the pin hole 1 on the other upper and lower end surface.
A pin 17 serving as the other connecting portion pivotally supported by 4 is integrally provided. And, on one end surface of the wave-making plate I5,
A plate receiving hole 18 that opens in one direction is provided.

19 is a large number of flexible seal plates made of, for example, fiber-reinforced plastic;
It is fixed to the wave-making plate 15a with screws 20, and the other end is provided in a plate receiving hole 18 of the wave-making plate 15b adjacent to the wave-making plate 15a so as to be freely inserted and removed. These flexible seal plates 19 are connected to two mutually adjacent wave-making plates 15a of the wave-making plates 15,
It is configured to close the gap 15b. In addition,
Reference numeral 21 denotes a large number of guide rails extending in the front-rear direction, which are provided on the pedestal 22 at predetermined intervals in the parallel direction of the bottle holders 11, and guide the drive arm 12 via a slide bearing 23. It is composed of 24 and 25 are pulleys arranged in parallel at a predetermined interval in the front and back direction; 26 is a toothed belt for transmission that is stretched between these pulleys 24 and 25 and is moved by a servo motor 27; Drive arm 12
It is a metal fitting that fixes the Further, 27 indicates both pulleys 24
, 25 is a sensor that detects the rotational position of the front pulley 24.

In the wave-making device configured in this way, by moving the bin holder 11 forward and backward using the drive arm 12,
Since the wave-forming plate 15 and the flexible seal plate 19 can form a continuous wave-forming surface in the front, a ring unibu does not occur in front of the wave-forming plate 15 and the flexible seal plate 19.

In addition, in this embodiment, the wave-making plate 1 that swings in the front-back direction
5 and the flexible seal plate 19 inserted into and removed from the wave-forming plate 15, the wave-forming surface is made into a continuous surface as shown in FIGS.
As shown in , the traveling direction angle of the generated wave (the line that corresponds to the advance and retreat direction of the bottle holder 11 is taken as the reference line, and the angle formed by this reference line and the line that corresponds to the traveling direction of the wave) θ2 (〉θI)
When setting a wide range, the number of parts such as the wave-making plate 15 can be reduced compared to the conventional example. In the figure, symbol B is the interval between two mutually adjacent wave-making plates.

Incidentally, in order to generate waves with the wave making device of the present invention,
By shifting the rotational phase of each servo motor 27, the bottle holder 1 is
This is done by moving the lid back and forth in the front and rear directions. At this time, as shown in FIGS. 6(a) to (C1), the wave-making plates 15a to 15d swing in the front-rear direction, and the flexible seal plates 192 to 19d move to the wave-making plate 15.
It advances and retreats from a to 15d. In this case, in order to generate waves with mutually different advancing direction angles θ, the movement stroke of the drive arm 12 is changed.

Furthermore, when using the wave-making device according to the present invention, part of the wave-making plate 15, flexible seal plate 19, etc. is placed in the water (symbol W).

〔Effect of the invention〕

As explained above, according to the present invention, a large number of holders are arranged in parallel at predetermined intervals in the horizontal direction and move forward and backward in the front and back directions, and two holders that are connected to each other adjacent to each other among these holders are connected to each other in the front and rear directions. The wave-making plates are rotated around an axis extending in the vertical direction, with one connecting part sliding in the parallel direction of the receivers and the other connecting part sliding in the parallel direction of the receivers. It consists of movable wave-making plates, and the gap between two adjacent wave-making plates is closed by a flexible seal plate, and one end of these flexible seal plates is fixed to the wave-making plate. Since the other end is slidably provided, a continuous wave-forming surface can be formed by the wave-forming plate and the flexible seal plate by moving the receiver forward and backward. Therefore, since no ring sea bream is generated in front of the wave-making plate and the flexible seal plate during operation, it is possible to improve wave-making performance. In addition, the wave-making surface is made into a continuous surface by the wave-making plate that swings back and forth and the flexible seal plate that slides against the wave-making plate, which is useful when setting the traveling direction angle of the generated waves over a wide range. Compared to the conventional case, it is possible to reduce the number of parts such as a wave-forming plate and a drive device for the wave-forming plate, so that costs can be reduced.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the entire wave making device according to the present invention, FIGS. 2 to 4 are a plan view, front view, and side view showing the main parts of the wave making device according to the present invention, and FIG. ta+ and (′
b) is a diagram showing the state of wave propagation in the present invention and the conventional example; FIGS. 6(al) to (C) are plan views showing the operating state of the wave making device in the present invention; Fig. 8 is a plan view showing the device in a simplified manner, and Fig. 8 is an enlarged plan view showing the arrow G portion in Fig. 7. 11... Bottle holder, 12... Drive arm, 1
3...Long hole, 15...Wave plate, 16', 17...
... bottle, 19 ... flexible seal plate, 20 ... screw.

Claims (1)

[Claims] A large number of holders are arranged horizontally at predetermined intervals and move forward and backward, and two of these holders are adjacent to each other.
A large number of wave-making plates are connected to two holders and swing in the front-rear direction. The structure consists of wave-making plates that rotate around an axis extending in the direction of the wave-making plate, and the interval between two adjacent wave-making plates among these wave-making plates is closed by a flexible seal plate, and these flexible seal plates A wave-making device characterized in that one end is fixed to a corrugated plate and the other end is slidably provided.