CN115307868A - Multi-structure bidirectional wave absorbing device - Google Patents
Multi-structure bidirectional wave absorbing device Download PDFInfo
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- CN115307868A CN115307868A CN202210889550.8A CN202210889550A CN115307868A CN 115307868 A CN115307868 A CN 115307868A CN 202210889550 A CN202210889550 A CN 202210889550A CN 115307868 A CN115307868 A CN 115307868A
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- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 11
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 238000013016 damping Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000005381 potential energy Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 241000251729 Elasmobranchii Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
- E02B1/02—Hydraulic models
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a multi-structure bidirectional wave absorbing device which comprises a lifting mechanism, a fixing support and a multi-structure wave absorbing plate group. The first layer and the fifth layer of the multi-structure wave-absorbing plate group are impeller-type wave-absorbing structures, the second layer and the fourth layer are spring-type wave-absorbing structures, and the third layer is a fine-pore-diameter wave-absorbing plate; two layers of parallel and symmetrically distributed wave-absorbing impellers and uniformly distributed circular through holes are arranged on a wave-absorbing plate of the impeller type wave-absorbing structure, and the wave-absorbing impellers are in an arc shape; the spring type wave absorbing structure consists of two wave absorbing plates provided with circular through holes, and a spring is welded between the two wave absorbing plates; the sliding block connected with the wave-absorbing plate at the inner side is fastened on the fixed sliding rail through a bolt, the sliding block connected with the wave-absorbing plate at the outer side is not fastened with the fixed sliding rail, and the wave-absorbing plate at the outer side of the sliding block can slide on the fixed sliding rail; circular through holes are uniformly distributed on the fine-aperture wave-absorbing plate. The invention has strong flexibility, can be disassembled, can be suitable for a general ship model towing tank and various wave water tanks, and has high wave-absorbing efficiency.
Description
Technical Field
The invention belongs to the technical field of ship model tests, and particularly relates to a multi-structure bidirectional wave absorbing device.
Background
The towing tank is used as an important facility for carrying out hydrodynamic tests, and the speed, wave resistance, maneuverability, self-navigation of the ship, propeller performance, submarines, torpedoes, underwater robots and other related problems of the ship are generally researched by a method for carrying out model tests. When the towing tank carries out a related wave test or a large-scale model test, after each test working condition is completed, the test can be continued only after the water surface is calmed again by considering the influence of residual waves and chaotic waves on the test precision, the 'waiting for water' takes a large amount of time, the effective time for carrying out the test every day is very limited, and the wave-absorbing effect is not ideal although the towing tank is provided with a wave-absorbing bank or a wave-absorbing embankment. Considering that precious test time is wasted by 'waiting for water', the water surface needs to be calmed down as fast as possible, and the 'waiting for water' time is shortened, the invention designs the multi-structure bidirectional wave-absorbing device.
Disclosure of Invention
The invention aims to provide a multi-structure bidirectional wave absorbing device.
The purpose of the invention is realized by the following technical scheme:
a multi-structure bidirectional wave absorbing device comprises a lifting mechanism, a fixed bracket and a multi-structure wave absorbing plate group; the lifting mechanism comprises four lifters fixed on the wall surface of the end of the pool, and each lifter is provided with a fixed frame and a lead screw for driving the lifter; the lead screw is connected with a built-in motor arranged in the fixed frame, and the lower end of the lifter is provided with a stop block; the fixed support comprises four fixed sliding rails which are longitudinally distributed, a structure supporting cross beam which is transversely distributed and a sliding block which is used for connecting the fixed sliding rails and the multi-structure wave absorbing plate group;
the multi-structure wave-absorbing plate group is of a five-layer wave-absorbing structure, the first layer and the fifth layer are of impeller-type wave-absorbing structures, the second layer and the fourth layer are of spring-type wave-absorbing structures, and the third layer is a fine-pore-diameter wave-absorbing plate; two layers of parallel and symmetrically distributed wave-absorbing impellers and uniformly distributed circular through holes are arranged on a wave-absorbing plate of the impeller type wave-absorbing structure, and the wave-absorbing impellers are arc-shaped;
the spring type wave absorbing structure consists of two wave absorbing plates provided with circular through holes, and a spring is welded between the two wave absorbing plates; the sliding block connected with the wave-absorbing plate at the inner side is fastened on the fixed sliding rail through a bolt, the sliding block connected with the wave-absorbing plate at the outer side is not fastened with the fixed sliding rail, and the wave-absorbing plate at the outer side of the sliding block can slide on the fixed sliding rail;
circular through holes are uniformly distributed on the fine-aperture wave-absorbing plate.
Furthermore, each layer of wave absorption plate of the multi-structure wave absorption plate group is provided with a reinforcing rib.
Furthermore, a grid-type groove is formed in the surface of each blade of the wave-absorbing impeller.
Furthermore, the thickness of the wave absorbing plate on the outer side of the spring type wave absorbing structure is thinner than that of the wave absorbing plate on the inner side.
Furthermore, five pairs of equidistant screw holes are formed in the fixed slide rail and used for fixing the slide block.
Furthermore, the sliding block is provided with a groove and a bolt hole for fixing and connecting the wave-absorbing plate; the sliding block is also provided with a through hole, and when the fixed wave-absorbing plate is connected, the sliding block is tightly connected with the fixed sliding rail through a bolt.
Further, the fixing support and the multi-structure wave absorbing plate group are made of aluminum alloy materials.
The invention has the beneficial effects that:
the wave-absorbing plate group with multiple structures is adopted to consume waves in a grading way, and the wave energy can be converted into multiple kinds of energy to be dissipated, so that the wave energy dissipation efficiency is improved, and the wave-absorbing time is shortened. When the impeller is impacted by waves, the impeller can rotate under the action of the waves, energy in the waves is converted into mechanical energy, and in addition, the contact area between the waves and the blades is increased by the grooves distributed on the grid of the impeller blades, so that the effect of auxiliary wave absorption is achieved. After waves pass through the impeller type wave absorbing structure, the spring type wave absorbing structure can be impacted, the wave absorbing plates on the outer sides of the structure can reciprocate on the fixed slide rails under the action of the waves, at the moment, the springs between the two wave absorbing plates can elastically deform, the springs are repeatedly stretched or extruded under the continuous action of the waves, and the wave energy is converted into elastic potential energy to be dissipated. When the waves pass through the impeller type wave absorption structure and the spring type wave absorption structure, the circular holes in the wave absorption plate can also break and divide the waves, so that the wave form is changed, and the kinetic energy of the waves is absorbed. The middle aperture is smaller, and the fine-aperture wave-absorbing plate with larger damping can further divide and absorb residual waves and broken waves. The symmetrically arranged circular arc impellers can respectively eliminate waves and reflected waves in the incoming flow direction and are basically not influenced by each other. In addition, the invention has strong flexibility, can be disassembled, can be suitable for a general ship model towing tank and various wave water tanks, and has high wave-absorbing efficiency.
Drawings
FIG. 1 is a schematic diagram of the basic structure of the multi-structure bidirectional wave-absorbing device of the present invention;
FIG. 2 is a schematic view of an impeller-type wave-absorbing structure of the multi-structure bidirectional wave-absorbing device of the present invention;
FIG. 3 is a schematic diagram of the spring type wave-damping structure of the multi-structure two-way wave-damping device of the present invention;
FIG. 4 is a schematic view of a fine-pore wave-canceling plate of the multi-structure bi-directional wave-canceling device of the present invention;
FIG. 5 is a schematic view of an impeller of the multi-structure bi-directional wave-damping device of the present invention;
FIG. 6 is a schematic view showing the connection of the wave-absorbing plate, the sliding block and the fixed sliding rail of the multi-structure bidirectional wave-absorbing device of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 6, the present invention is mainly composed of a lifting mechanism, a fixing bracket, a multi-structure wave absorbing plate group, etc. The lifting mechanism is composed of four lifters 1 which are fixed at the end of the pool and can synchronously work, the lifters 1 are fixed on the wall of the pool through a fixing frame 11 and are driven by a lead screw 10, the lead screw 10 is connected with the output end of an internal motor and is driven by the internal motor, and a stop block 12 is installed at the lower end of each lifter. The fixed support comprises a fixed slide rail 7 arranged longitudinally, a structure supporting beam 8 arranged transversely and a slide block 9 connecting the wave-absorbing plate and the fixed slide rail. The multi-structure wave-absorbing plate group comprises an impeller type wave-absorbing structure 2, a spring type wave-absorbing structure 3 and a fine-pore-diameter wave-absorbing plate 4, and each wave-absorbing plate is provided with a reinforcing rib 13.
Before the test, the whole device is kept above the water surface, after a test working condition is completed, the built-in motor is started, the lead screw 10 is controlled to rotate, the lifter 1 is driven to enable the device to fall, the device is adjusted to a proper falling position according to the type and the wave height of waves generated by the wave generator, and the stop block 12 is used for ensuring the safety when the device falls to the lowest position.
At the moment, waves can pass through the multi-structure wave-absorbing plate group, the impeller-type wave-absorbing structures 2 of the first layer and the fifth layer are respectively and mainly used for eliminating the waves and the reflected waves in the front incoming flow direction, the wave-absorbing impeller 5 in the first layer of wave-absorbing structure faces the incoming flow and the waves in the front and is not influenced by the reflected waves as far as possible, and the energy dissipation of the reflected waves is mainly carried out by the wave-absorbing impeller 5 in the fifth layer of wave-absorbing structure. The wave-absorbing impeller 5 rotates under the action of waves, the wave energy is converted into mechanical energy required by the rotation of the wave-absorbing impeller 5 and is consumed, grid-type grooves are arranged on the wave-absorbing impeller 5, the contact area of the waves and impeller blades is increased, the effect of auxiliary wave absorption is achieved, and circular through holes in the wave-absorbing plate can also crush and divide the waves for the first time.
When waves reach the spring type wave absorbing structures 3 on the second layer and the fourth layer, under the impact of the waves, the wave absorbing plates on the outer sides in the structures reciprocate along the fixed slide rails 7, so that the springs 6 are elastically deformed, and the springs 6 are repeatedly stretched or extruded under the continuous action of the waves, so that the wave energy is converted into elastic potential energy. The circular through hole in the spring type wave damping structure 3 can further break and divide the waves.
And finally, the fine-pore-diameter wave-absorbing plate 4 on the third middle layer can filter and absorb the waves which are subjected to multiple wave-absorbing again, and the circular through holes of the fine-pore-diameter wave-absorbing plate have larger damping and are used for better absorbing the kinetic energy in the residual waves and the broken waves. After the water surface is calm down, the lifter 1 is driven to lift the device to the water surface, and then the next test working condition can be carried out. The multi-structure wave-absorbing plate group is used for carrying out multiple wave absorption on waves, the wave energy is converted into energy in various forms such as mechanical energy, elastic potential energy, heat energy and the like, the wave-absorbing work can be completed more efficiently, the water surface is quickly calmed down, the equal water time is greatly shortened, and the device is not only suitable for a general ship model towing tank, but also suitable for various wave water tanks.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A multi-structure bidirectional wave absorbing device is characterized in that: comprises a lifting mechanism, a fixed bracket and a multi-structure wave absorbing plate group;
the lifting mechanism comprises four lifters (1) fixed on the wall surface of the end of the pool, each lifter (1) is provided with a fixed frame (11) and a lead screw (10) for driving the lifter (1); the screw rod (10) is connected with a built-in motor arranged in the fixed frame (11), and the lower end of the lifter (1) is provided with a stop block (12);
the fixed support comprises four fixed sliding rails (7) which are longitudinally distributed, a structure supporting cross beam (8) which is transversely distributed and a sliding block (9) which is used for connecting the fixed sliding rails (7) and the multi-structure wave absorbing plate group;
the multi-structure wave absorbing plate group is of a five-layer wave absorbing structure, the first layer and the fifth layer are impeller type wave absorbing structures (2), the second layer and the fourth layer are spring type wave absorbing structures (3), and the third layer is a fine-pore-diameter wave absorbing plate (4); two layers of parallel and symmetrically distributed wave-absorbing impellers (5) and uniformly distributed circular through holes are arranged on a wave-absorbing plate of the impeller type wave-absorbing structure (2), and the wave-absorbing impellers (5) are in an arc shape;
the spring type wave absorption structure (3) consists of two wave absorption plates provided with circular through holes, and a spring (6) is welded between the two wave absorption plates; the sliding block (9) connected with the wave-absorbing plate at the inner side is fastened on the fixed sliding rail (7) through a bolt, the sliding block (9) connected with the wave-absorbing plate at the outer side is not fastened with the fixed sliding rail (7), and the wave-absorbing plate at the outer side of the sliding block (9) can slide on the fixed sliding rail (7);
circular through holes are uniformly distributed on the fine-pore-diameter wave-absorbing plate (4).
2. A multi-structure bi-directional wave-canceling device according to claim 1, wherein: each layer of wave-absorbing plate of the multi-structure wave-absorbing plate group is provided with a reinforcing rib (13).
3. A multi-structure bi-directional wave-canceling device according to claim 1, wherein: the surface of the blade of the wave-absorbing impeller (5) is provided with a grid-type groove.
4. A multi-structure bi-directional wave-canceling device according to claim 1, wherein: the thickness of the wave absorbing plate at the outer side of the spring type wave absorbing structure (3) is thinner than that of the wave absorbing plate at the inner side.
5. A multi-structure bi-directional wave-absorbing device according to claim 1, wherein: five pairs of equidistant screw holes are formed in the fixed slide rail (7) and used for fixing the slide block (9).
6. A multi-structure bi-directional wave-absorbing device according to claim 1, wherein: the sliding block (9) is provided with a groove and a bolt hole and is used for fixing and connecting the wave-absorbing plate; the sliding block (9) is also provided with a through hole, and when the fixed wave-absorbing plate is connected, the sliding block (9) is tightly connected with the fixed sliding rail (7) through a bolt.
7. A multi-structure bi-directional wave-absorbing device according to claim 1, wherein: the fixed support and the multi-structure wave-absorbing plate group are made of aluminum alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210889550.8A CN115307868A (en) | 2022-07-27 | 2022-07-27 | Multi-structure bidirectional wave absorbing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210889550.8A CN115307868A (en) | 2022-07-27 | 2022-07-27 | Multi-structure bidirectional wave absorbing device |
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| CN115307868A true CN115307868A (en) | 2022-11-08 |
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| CN202210889550.8A Pending CN115307868A (en) | 2022-07-27 | 2022-07-27 | Multi-structure bidirectional wave absorbing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117248495A (en) * | 2023-11-17 | 2023-12-19 | 中国海洋大学 | Emergency temporary breakwater of elasticity curtain formula |
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