CN219244947U - Passive grid wave-absorbing device - Google Patents
Passive grid wave-absorbing device Download PDFInfo
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- CN219244947U CN219244947U CN202320197482.9U CN202320197482U CN219244947U CN 219244947 U CN219244947 U CN 219244947U CN 202320197482 U CN202320197482 U CN 202320197482U CN 219244947 U CN219244947 U CN 219244947U
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- wave
- absorbing
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- pond
- beach
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The utility model discloses a passive grid wave absorbing device, which comprises: the driving part comprises a fixed end and a driving end, and the fixed end is fixedly arranged in the towing tank; the wave-absorbing beach comprises a plurality of grids which extend along the longitudinal direction of the towing tank and are arranged at intervals, the wave-absorbing beach is fixedly connected with the driving end and driven by the driving end to ascend or descend in the towing tank, the number of the wave-absorbing beach is two, the two wave-absorbing beaches are symmetrically arranged at two longitudinal side walls of the towing tank, each wave-absorbing beach is obliquely arranged, one side of each wave-absorbing beach far away from the longitudinal side wall of the towing tank is lower than one side of each wave-absorbing beach close to the longitudinal side wall of the towing tank, and 60% -70% of the whole wave-absorbing beaches are located on the water surface of the towing tank. The device can shorten the water-absorbing time of wave-absorbing and the like under each working condition to about 5 minutes, and the test efficiency is obviously improved.
Description
Technical Field
The utility model relates to the technical field of grid wave elimination, in particular to a passive grid wave elimination device.
Background
The towing tank is a device for hydrodynamics experiments, and is a test tank for knowing the motion, navigational speed, propulsion power and other performances of a ship by using a ship model test method, wherein the test is carried out by an electric trailer towing ship model. In the test process, no matter the ship model moves or the wave produced by the wave generator can generate disturbance to the water surface, the next working condition test can be carried out after the water surface is kept still for a long time, the test time is long, and the test efficiency is low.
The passive wave elimination is to perform corresponding motion according to wave pressure acting on the push plate to achieve the wave elimination effect, and some wave elimination devices in the prior art still have the problem of unsatisfactory wave elimination efficiency, so that the test time is long and the efficiency is low.
Therefore, how to provide a passive grid wave-absorbing device capable of avoiding the above drawbacks is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In order to achieve the above purpose, the present utility model provides a passive grid wave absorber. The specific technical scheme is as follows:
a passive grid wave absorbing device comprising:
the driving part comprises a fixed end and a driving end, and the fixed end is fixedly arranged in the towing tank;
the utility model provides a drag pond, its includes that a plurality of edges extend in the longitudinal direction of drag pond and the grid of interval arrangement, this drag pond fixed connection the drive end is just received the drive end can rise or descend in drag pond, the quantity of drag pond is two, and this two drag ponds symmetrical arrangement is in two longitudinal side wall departments of drag pond, every the drag pond all is the slope setting, and the one side that the longitudinal side wall of drag pond was kept away from to every drag pond is less than its one side that is close to the longitudinal side wall of drag pond, every 60% -70% of the whole of drag pond is located the surface of water of drag pond.
Preferably, two thirds of the whole of each of the wave-absorbing beaches are located on the water surface of the towing tank.
Preferably, each of the wave-absorbing beaches is inclined at an angle of 5 ° to 10 ° with respect to the water surface.
Preferably, each of the wave-absorbing beaches is inclined at an angle of 7 ° with respect to the water surface.
Preferably, the driving part comprises a transmission main shaft, two rotating brackets and a plurality of steel wire ropes, the steel wire ropes are in one-to-one correspondence with a plurality of grids, one end of each steel wire rope is fixedly connected with the corresponding grid, the other end of each steel wire rope is fixedly arranged on the transmission main shaft, the transmission main shaft can reciprocate along the longitudinal direction of the towing tank, one end of each rotating bracket is hinged to a wave-absorbing beach, the other end of each rotating bracket is hinged to the side wall of the towing tank, and the transmission main shaft drives the wave-absorbing beach to ascend or descend through the rotating brackets and the steel wire ropes when reciprocating.
Preferably, each wave-absorbing beach further comprises a base, the base comprises four supporting frames which are sequentially and fixedly connected end to end, and the four supporting frames form a hollowed-out frame structure for supporting the grids.
Preferably, the base further comprises a plurality of supporting beams arranged along the transverse direction of the towing tank, the base further comprises a plurality of short beams arranged along the longitudinal direction of the towing tank and used for being connected with the supporting beams arranged in the middle of the supporting frame, and the supporting beams and the short beams are all L-shaped angle steels.
Preferably, the distance between two adjacent grids is 12mm-20mm.
Preferably, the distance between two adjacent grids is 16mm.
Preferably, each of the wave-absorbing beaches has a range of motion in the height direction covering at least eight-ninth of the whole of the topsides of the towing tank.
The passive grid wave absorbing device provided by the utility model has the following technical effects:
the device can better dissipate waves in the pool, accelerate the crushing of the waves on the wave-absorbing beach, and facilitate the crushed waves to flow into the pool through the intervals of the wave-absorbing grids and gaps behind the wave-absorbing beach, thereby reducing wave reflection and improving wave-absorbing performance. The device has the characteristics of simple structure, convenient maintenance, small occupied space, strong applicability, excellent wave-absorbing performance and the like. And through limiting that 60% -70% of the whole of each wave-absorbing beach is positioned on the water surface of the towing tank, the wave-absorbing waiting time of each working condition can be shortened to about 5 minutes, and the test efficiency is remarkably improved.
Preferably, 2/3 of the wave-absorbing beach is positioned on the water surface of the towing tank, the arrangement mode can better dissipate waves in the towing tank, and reflected waves after being propagated to the wave-absorbing beach are difficult to climb up the wave-absorbing beach to enter the middle of the towing tank, so that the formation of the reflected waves is further effectively inhibited, and the wave-absorbing performance of the device is further improved.
Preferably, through the distance between adjacent grids and a plurality of the angle cooperation designs that grid and horizontal plane formed, corresponding wave that can realize propagating to the wave-absorbing beach can be broken by the grid fast, and the wave after the breakage directly gets into wave-absorbing beach and towing tank between the vertical lateral wall to wave such as wave in the realization absorption pond traveling wave, transverse wave reduce the influence of both sides pool wall reflection wave, improve experimental precision, also can further shorten the time of wave-absorbing, promoted efficiency.
Preferably, in one embodiment of the driving part, the adjusting of the height of the beach is realized by arranging a transmission main shaft, a steel wire rope, a rotating bracket and other parts, so that the beach adjusting device is simple in structure and convenient to operate.
Preferably, the motion range of the wave-absorbing beach along the height direction at least covers 8/9 of the topside of the towing tank, the blind area is small, and the wave-absorbing beach can be suitable for more tanks.
Drawings
FIG. 1 is a schematic diagram of the working conditions of a passive grid wave absorber according to the present utility model;
FIG. 2 is a schematic structural diagram of a passive grid wave absorber according to an embodiment of the present utility model;
FIG. 3 is a schematic view of the rotating bracket of FIG. 2;
fig. 4 is a schematic diagram of the positional relationship between the beach and the water surface.
The reference numerals in fig. 1-4 are as follows:
1 wave beach, 2 grids, 3 towing ponds, 4 transmission main shafts, 5 rotating brackets, 6 steel wire ropes, 7 bases, 8 connecting lugs, 9 rotating shafts, 10 driving motors, 11 fixed bases and 12 universal joints.
Detailed Description
As shown in fig. 1 to 4, the present utility model provides a passive grid wave absorbing device, comprising:
the driving part comprises a fixed end and a driving end, and the fixed end is fixedly arranged in the towing tank 3;
the wave-absorbing beach 1 comprises a plurality of grids 2 which extend along the longitudinal direction of the towing water 3 pool and are arranged at intervals, the wave-absorbing beach 1 is fixedly connected with the driving end and driven by the driving end to ascend or descend in the towing water pool 3, the number of the wave-absorbing beach 1 is two, the two wave-absorbing beach 1 are symmetrically arranged at two longitudinal side walls of the towing water pool 3, each wave-absorbing beach 1 is obliquely arranged, one side of each wave-absorbing beach 1 far away from the longitudinal side wall of the towing water pool 3 is lower than one side of the wave-absorbing beach 1 close to the longitudinal side wall of the towing water pool 3, and 60% -70% of the whole of each wave-absorbing beach 1 is positioned on the water surface of the towing water pool 3.
The device can better dissipate waves in the pool, accelerate the crushing of the waves on the wave-absorbing beach 1, and facilitate the crushed waves to flow into the pool through the intervals of the wave-absorbing grids 2 and the gaps behind the wave-absorbing beach 1, so that the wave reflection is reduced, and the wave-absorbing performance is improved. The device has the characteristics of simple structure, convenient maintenance, small occupied space, strong applicability, excellent wave-absorbing performance and the like. And through limiting that 60% -70% of the whole of each wave-absorbing beach 1 is positioned on the water surface of the towing tank 3, the wave-absorbing waiting time of each working condition can be shortened to about 5 minutes, and the test efficiency is remarkably improved.
In a specific embodiment, two thirds of the whole of each wave-absorbing beach 1 is positioned on the water surface of the towing water 3 pool.
The arrangement mode can better dissipate waves in the water pool, and reflected waves transmitted to the wave-absorbing beach 1 are difficult to climb up the wave-absorbing beach 1 to enter the middle of the water pool 3, so that the formation of the reflected waves is further effectively inhibited, and the wave-absorbing performance of the device is further improved.
In a specific embodiment, each of the wave-absorbing beaches 1 is inclined at an angle of 5 ° to 10 ° relative to the water surface.
Through the distance between adjacent grids 2 and a plurality of the angle cooperation designs that grid 2 and horizontal plane formed, corresponding wave that can realize propagating to the wave beach that disappears 1 can be broken by grid 2 fast, and the wave after the breakage directly gets into wave beach that disappears 1 and drag between the lateral wall of pond 3 indulges to realize absorbing wave such as traveling wave, transverse wave in the pond, reduce the influence of both sides pool wall reflection wave, improve experimental precision, also can further shorten the time of wave that disappears, promoted efficiency.
Preferably, each of the wave-absorbing beaches 1 is inclined at an angle of 7 ° with respect to the water surface.
In a specific embodiment, the driving part comprises a transmission main shaft 4, two rotating brackets 5 and a plurality of steel wire ropes 6, the steel wire ropes 6 are in one-to-one correspondence with a plurality of grids 2, one end of each steel wire rope 6 is fixedly connected with the corresponding grid 2, the other end of each steel wire rope is fixedly arranged on the transmission main shaft 4, the transmission main shaft 4 can reciprocate along the longitudinal direction of the towing tank 3, one end of each rotating bracket 5 is hinged to the wave-absorbing beach 1, the other end of each rotating bracket is hinged to the side wall of the towing tank 3, and the transmission main shaft 4 drives the wave-absorbing beach 1 to ascend or descend through the rotating brackets 5 and the steel wire ropes 6 during reciprocating movement. As shown in fig. 2, two swivel brackets 5 are distributed on the front and rear sides of the plurality of wire ropes 6 in the longitudinal direction of the towing tank 3.
Referring to fig. 3, a connecting lug 8 is further provided, a shaft hole is formed in the connecting lug 8, one end of a rotating shaft 9 is embedded in the shaft hole, the rotating shaft 9 is sleeved in a sleeve, the sleeve is located at one end of the rotating bracket 5, a screw hole matched with a screw is formed in the connecting lug 8, a screw passes through the screw hole, and an embedded end of the screw is embedded in the side wall of the towing tank 3.
The driving part comprises a driving motor 10 fixedly arranged on a fixed base 11, and the fixed base 11 is fixed on the side wall of the towing tank 3; the driving part also comprises a turbine screw rod and a linkage screw rod, wherein the output shaft of the driving motor 10 is connected with a speed reduction device formed by the worm gear and the worm, and the speed reduction device is communicated with the transmission main shaft 4 through the linkage screw rod and the universal joint 12.
In one embodiment of the driving part, the transmission main shaft 4, the steel wire rope 6, the rotary support 5 and other parts are arranged, so that the height of the beach is adjusted, and the beach adjusting device is simple in structure and convenient to operate.
In a specific embodiment, as shown in fig. 1-4, each of the wave-absorbing beaches 1 further includes a base 7, where the base 7 includes four supporting frames fixedly connected end to end in sequence, and the four supporting frames form a hollowed frame structure for supporting the plurality of gratings 2 therein.
Further, the base 7 further comprises a plurality of supporting beams arranged along the transverse direction of the towing tank 1, the base 7 further comprises a plurality of short beams arranged along the longitudinal direction of the towing tank 3 and used for being connected with the supporting beams arranged in the middle of the supporting frame, and the supporting beams and the short beams are all L-shaped angle steels. The structural strength of the base 7 can be improved.
In a specific embodiment, the distance between two adjacent grids 2 is 12mm-20mm.
Further, the distance between two adjacent grids 2 is 16mm.
In a specific embodiment, each of the wave-absorbing beaches 1 has a range of motion in the height direction covering at least eight-ninth of the whole of the topside of the towing tank 3.
The motion range of the wave-absorbing beach 1 along the height direction at least covers 8/9 of the towed pool topside 3, the blind area is small, and the wave-absorbing beach can be suitable for more pools.
Claims (10)
1. A passive grid wave absorbing device, comprising:
the driving part comprises a fixed end and a driving end, and the fixed end is fixedly arranged in the towing tank;
the utility model provides a drag pond, its includes that a plurality of edges extend in the longitudinal direction of drag pond and the grid of interval arrangement, this drag pond fixed connection the drive end is just received the drive end can rise or descend in drag pond, the quantity of drag pond is two, and this two drag ponds symmetrical arrangement is in two longitudinal side wall departments of drag pond, every the drag pond all is the slope setting, and the one side that the longitudinal side wall of drag pond was kept away from to every drag pond is less than its one side that is close to the longitudinal side wall of drag pond, every 60% -70% of the whole of drag pond is located the surface of water of drag pond.
2. The passive grating clip of claim 1, wherein two-thirds of each clip is located on the surface of the towing tank.
3. A passive grating clip according to claim 1, wherein each clip is inclined at an angle of 5 ° -10 ° to the water surface.
4. A passive grating clip according to claim 3, wherein each clip is inclined at an angle of 7 ° to the water surface.
5. The passive grid wave absorbing device according to claim 1, wherein the driving part comprises a transmission main shaft, two rotating brackets and a plurality of steel wire ropes, the steel wire ropes are in one-to-one correspondence with the grids, one end of each steel wire rope is fixedly connected with the corresponding grid, the other end of each steel wire rope is fixedly arranged on the transmission main shaft, the transmission main shaft can reciprocate along the longitudinal direction of the towing tank, one end of each rotating bracket is hinged to a wave absorbing beach, the other end of each rotating bracket is hinged to the side wall of the towing tank, and the transmission main shaft drives the wave absorbing beach to ascend or descend through the rotating brackets and the steel wire ropes when reciprocating.
6. The passive grid wave absorbing device according to claim 1, wherein each wave absorbing beach further comprises a base, the base comprises four supporting frames fixedly connected end to end in sequence, and the four supporting frames form a hollowed-out frame structure for supporting the grids located in the supporting frames.
7. The passive grid wave absorbing device of claim 6, wherein the base further comprises a plurality of support beams arranged along the transverse direction of the towing tank, the base further comprises a plurality of short beams arranged along the longitudinal direction of the towing tank for connecting the support beams arranged in the middle of the support frame, and the support beams and the short beams are all L-shaped angle steels.
8. A passive grating wave absorber according to claim 1, wherein the distance between two adjacent gratings is 12-20 mm.
9. The passive grid clip of claim 8, wherein the distance between two adjacent grids is 16mm.
10. The passive grating wave-absorbing device of claim 1, wherein each of the wave-absorbing beaches has a range of motion in the height direction covering at least eight-nine of the entire topsides of the towing tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320197482.9U CN219244947U (en) | 2023-02-13 | 2023-02-13 | Passive grid wave-absorbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320197482.9U CN219244947U (en) | 2023-02-13 | 2023-02-13 | Passive grid wave-absorbing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219244947U true CN219244947U (en) | 2023-06-23 |
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ID=86841350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320197482.9U Active CN219244947U (en) | 2023-02-13 | 2023-02-13 | Passive grid wave-absorbing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219244947U (en) |
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2023
- 2023-02-13 CN CN202320197482.9U patent/CN219244947U/en active Active
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