CN114112303B - Laboratory simulation device and method for offshore floating island-wave-prevention-anchoring system - Google Patents
Laboratory simulation device and method for offshore floating island-wave-prevention-anchoring system Download PDFInfo
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- CN114112303B CN114112303B CN202111440498.XA CN202111440498A CN114112303B CN 114112303 B CN114112303 B CN 114112303B CN 202111440498 A CN202111440498 A CN 202111440498A CN 114112303 B CN114112303 B CN 114112303B
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Abstract
A laboratory simulation device and method for an offshore floating island-wave-prevention-anchoring system comprises a water pool; the water pool is rotatably provided with a tray; a floating island module is arranged in the center of the water surface of the pool; the floating island module is fixedly connected with the anchoring ring through a plurality of anchor chains; breakwater modules are arranged around the floating island modules; the breakwater module is fixedly connected with the anchoring ring through a plurality of anchor chains; the inner side wall of the pool is circumferentially provided with a wave simulation module and an ocean current simulation module; a plurality of wind field simulators are fixedly arranged on the roof above the pool; the wind field simulator faces the floating island module; the invention combines a plurality of floating island units and breakwater units, and simultaneously adds a sea current simulation module, a wave simulation module and a sea wind simulation module; various different ocean conditions can be simulated at the same time, so that the simulated ocean environment is more real; therefore, people can obtain more accurate data when researching the artificial floating island.
Description
Technical Field
The invention relates to the technical field of coastal and ocean engineering, in particular to a laboratory simulation device and method for an offshore floating island-wave-prevention-anchoring system.
Background
The development of the offshore artificial land is an effective means for relieving the contradiction between supply and demand of land and expanding social survival and development space in coastal areas, and has great social and economic benefits. The artificial sea reclamation is an engineering means for opening up the offshore land which is commonly used in many coastal countries and regions, particularly in cities and regions with outstanding problems of more people and less land. The reclamation engineering can bring some inevitable problems, such as changing regional tidal current movement characteristics, reducing water environment capacity and pollutant diffusion capacity, accelerating pollutant accumulation at the sea bottom and bringing serious influence to coastal ecology; in addition, the silt is also caused to wash away and deposit, the landform and the landform of the coast are damaged, and the regional flood control and the shipping are influenced. The offshore floating artificial island is an environment-friendly offshore land expansion mode, can solve the environmental and ecological problems caused by traditional offshore land reclamation, and is a necessary trend of future offshore space development.
The offshore floating artificial island is a complex engineering system and comprises a peripheral wave-proof system and an anchoring system for fixing besides a floating island main body structure; meanwhile, in order to meet the requirement of large draught of the artificial floating island and reduce the influence on the coastal structure and the ecological environment as much as possible, the offshore artificial floating island is generally built in a place with large water depth, so that the marine environmental conditions are complex. Because the offshore artificial floating island is a new concept and lacks of systematic research results, the offshore artificial floating island needs to be simulated by technical means to carry out scientific research. Numerical simulation is a common research means, but since the offshore floating artificial island relates to multiple disciplines such as hydrodynamic force, structural mechanics and soil mechanics, the problem of such a complex system is difficult to solve by using a numerical model. Therefore, the experimental simulation in a laboratory is an effective and accurate research means of the offshore floating artificial island; the existing artificial floating island experimental model can only simulate one or two conditions in a marine environment and cannot simulate a more real environment, and in addition, if the simulation is carried out separately, the influence of the combined action of two or more factors can be ignored, so that the experimental data is inaccurate; in addition, when the influence of sea wind is simulated, the existing artificial floating island experimental model usually ignores that the sea wind can come from different directions, if a fan is arranged in each direction, the cost is increased, only a few fans are arranged, and the fans and sensors with various functions need to be carried back and forth, so that unnecessary troubles are caused to the experiment; therefore, the invention provides a laboratory simulation device and method for an offshore floating island-wave-prevention-anchoring system.
Disclosure of Invention
The invention aims to provide a laboratory simulation device and method for an offshore floating island-wave-prevention-anchoring system, which are used for solving the problems in the prior art, can simulate sea wind in different directions and can more accurately simulate and research an offshore artificial floating island.
A laboratory simulation device and method for an offshore floating island-wave-prevention-anchoring system comprises a water pool; a first motor is fixedly arranged right below the water pool; an output pipe of the first motor vertically penetrates through the bottom plate of the water pool and is fixedly provided with a tray; the top surface of the tray is provided with a plurality of through grooves; the through grooves are circumferentially arranged; the roller is fixedly arranged in the through groove; the roller is abutted against the bottom of the water pool; the top surface of the tray is fixedly connected with a plurality of anchoring rings; a floating island module is arranged in the center of the water surface of the water pool; the floating island module is fixedly connected with the anchoring ring through a plurality of anchor chains; breakwater modules are arranged around the floating island modules; the breakwater module is fixedly connected with the anchoring ring through a plurality of anchor chains; the inner side wall of the pool is circumferentially provided with a wave simulation module and an ocean current simulation module; a plurality of wind field simulators are fixedly installed on the roof above the pool; the wind field simulator faces the floating island module.
Preferably, it is characterized in that: the floating island module comprises a plurality of floating island units; the floating island unit comprises an upper floating box body and a lower floating box body; the lower floating box body is of a hollow closed box type structure; the upper-layer floating box body is fixedly arranged on the top surface of the lower-layer floating box body through screws; the top surface of the upper floating box body is provided with a cover plate; one side of the cover plate is hinged with one side of the top end of the upper floating box body; the bottom edge of the upper layer floating box body and the top edge of the lower layer floating box body are vertically and fixedly connected with connecting plates; the connecting plates in the adjacent floating island units are fixedly connected through a hydraulic semi-rigid connector; the lower floating box body is fixedly connected with the anchoring ring through the anchor chain; the top surface of the cover plate and the bottom surface of the lower floating box body are fixedly connected with a plurality of fiber bragg grating structure deformation measuring devices.
Preferably, the breakwater module comprises a plurality of floating breakwater units; the floating breakwater unit comprises a large buoy; the top of the big buoy is symmetrically and fixedly connected with two small buoys; the bottom of the large buoy is symmetrically provided with a plurality of connecting rings; the connecting ring is fixedly connected with the anchoring ring through the anchor chain.
Preferably, the wave simulation module comprises a plurality of wave simulation units; the plurality of wave simulation units are arranged along the peripheral wall of the water pool; the wave simulation unit comprises a mounting seat fixedly mounted on the top surface of the pool wall of the pool, and a sliding rod is horizontally and fixedly connected to the top surface of the mounting seat; one end of the sliding rod is provided with a sliding block in a sliding manner; the bottom surface of the sliding block is vertically and fixedly connected with a wave making plate; the bottom end of the wave making plate extends into water; the top surface of the sliding rod is also fixedly provided with a second motor; an output shaft of the second motor is perpendicular to the sliding rod and fixedly connected with a rotary table; the edge of the end face of the turntable, which is far away from the second motor, is connected with a transmission rod in a shaft way; one end of the transmission rod is hinged with the side face of the sliding block.
Preferably, the ocean current simulation module comprises a first annular pipe and a second annular pipe which are horizontally arranged; the first annular pipe is fixedly connected to the top of the second annular pipe; the first annular pipe and the second annular pipe are sleeved outside the floating island module and the wave-lift prevention module and limited below the water surface; a plurality of water spray pipes are arranged on the inner side of the first annular pipe along the circumferential direction; a plurality of water suction pipes are arranged on the inner side of the second annular pipe along the circumferential direction; pneumatic valves are arranged on each water spraying pipe and each water suction pipe; one side of the first annular pipe is communicated with a water inlet pipe; the water inlet pipe penetrates through the water pool and is communicated with an independent water tank through a first water pump; one side of the bottom of the second annular pipe is communicated with a water outlet pipe, and the water outlet pipe penetrates through the water pool and is communicated with the independent water tank through a second water pump; the bottom end of the second annular pipe is fixedly connected with the bottom surface of the water pool through a plurality of supporting rods.
Preferably, the bottom of the pool is provided with an underwater camera, an ultrasonic current meter, a resistance wave height meter and a wheel type anemometer.
Preferably, a laser matrix type movement displacement measuring mechanism is fixedly mounted on the roof above the floating island module.
A use method of a laboratory simulation device of an offshore floating island-wave-prevention-anchoring system comprises the following steps:
1) installing the tray, the floating island module, the breakwater module, the wave simulation module and the ocean current simulation module into the water pool;
2) injecting water into the water pool;
3) tests were carried out.
The water level in the pool is positioned on the contact surface of the upper floating box body and the lower floating box body, and the bottom end of the wave making plate is ensured to stretch into the water.
The invention discloses the following technical effects:
(1) the invention combines a plurality of floating island units and breakwater units, and simultaneously adds a sea current simulation module, a wave simulation module and a sea wind simulation module; various different ocean conditions can be simulated at the same time, so that the simulated ocean environment is more real; therefore, people can obtain more accurate data when researching the artificial floating island;
(2) the invention can drive the floating island module and the breakwater lifting module to rotate by rotating the tray at the bottom of the water pool without moving the wind field simulator, thereby changing the angle of the floating island module and the breakwater module for receiving sea wind and researching the influence of the sea wind in different directions on the floating island module and the breakwater module in different shapes;
(3) the invention can simultaneously simulate the independent motion of the floating unit and the integral motion of the floating structure in the same test, so that the whole simulation device forms a complex coupling system with the combined action of mutual restraint, anchoring and external load, and the limitation that the interaction and influence of all components cannot be considered from the previous single object research is solved.
(4) The invention utilizes the laser matrix image measurement principle to generate dense laser dot matrixes to irradiate all the floating island modules and the breakwater modules, and the high-definition stereo camera is used for shooting in real time, so that the motion displacement of each unit module of the floating island modules and the breakwater device modules is reconstructed, and the non-contact implementation motion measurement of a plurality of moving targets is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a top view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a top view of the tray structure of the present invention;
FIG. 4 is a front view of the tray structure of the present invention;
FIG. 5 is a schematic diagram of a floating island unit structure according to the present invention;
FIG. 6 is a schematic structural diagram of a wave-lift prevention unit according to the present invention;
FIG. 7 is a schematic structural diagram of a wave simulation unit according to the present invention;
FIG. 8 is an enlarged fragmentary view of a first annular tube of the present invention;
FIG. 9 is an enlarged fragmentary view of a second annular tube in accordance with the present invention;
fig. 10 is a comparison graph of the numerical results of the breakwater wave-breaking performance of the three cross-sectional forms of the breakwater of the present invention.
Wherein:
1. a pool; 2. an upper floating box body; 3. a lower floating box body; 4. a cover plate; 5. a connecting plate; 6. a hydraulic semi-rigid connector; 7. a first motor; 8. a tray; 9. a through groove; 10. a roller; 11. an anchoring ring; 12. an anchor chain; 13. a large buoy; 14. a small buoy; 15. a connecting ring; 16. a mounting seat; 17. a slide bar; 18. a second motor; 19. a turntable; 20. a slider; 21. a transmission rod; 22. making a wave board; 23. a first annular tube; 24. a second annular tube; 25. a water inlet pipe; 26. a first water pump; 27. an independent water tank; 28. a water outlet pipe; 29. a second water pump; 30. a strut; 31. a wind field simulator; 32. an underwater camera; 33. an ultrasonic current meter; 34. a resistance wave height meter; 35. a wheel anemometer; 36. a high-definition camera; 37. a water spray pipe; 38. a pneumatic valve; 39. a suction pipe; 40. a matrix laser transmitter.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1-10, the invention provides a laboratory simulation device of a marine floating island-wave-prevention-anchoring system, which comprises a water pool 1; a first motor 7 is fixedly arranged under the water pool 1; an output shaft of the first motor 7 vertically penetrates through a bottom plate of the water pool 1 and is fixedly provided with a tray 8; the top surface of the tray 8 is provided with a plurality of through grooves 9; the through grooves 9 are arranged along the circumference; the roller 10 is fixedly arranged in the through groove 9; the roller 10 is abutted against the bottom of the water pool 1; the top surface of the tray 8 is fixedly connected with a plurality of anchoring rings 11; a floating island module is arranged in the center of the water surface of the water pool 1; the floating island module is fixedly connected with an anchoring ring 11 through a plurality of anchor chains 12; breakwater modules are arranged around the floating island modules; the breakwater module is fixedly connected with the anchoring ring 11 through a plurality of anchor chains 12; a wave simulation module and an ocean current simulation module are circumferentially arranged on the inner side wall of the pool 1; a plurality of wind field simulators 31 are fixedly arranged on the roof above the pool 1; the wind field simulator 31 is directed towards the floating island module.
A mechanical sealing element is arranged between the output shaft of the first motor 7 and the bottom surface of the pool wall of the pool 1 to prevent water from flowing out of the gap; tray 8 can rotate under the drive of first motor 7, and chinampa module and breakwater module all can rotate along with tray 8, so, need not remove outside fan, rotate tray 8 and just can realize blowing the different angles of chinampa module and breakwater module.
In a further optimization scheme, the floating island module comprises a plurality of floating island units; the floating island unit comprises an upper floating box body 2 and a lower floating box body 3; the lower floating box body 3 is a hollow closed box type structure; the upper layer floating box body 2 is fixedly arranged on the top surface of the lower layer floating box body 3 through screws; the top surface of the upper floating box body 2 is provided with a cover plate 4; one side of the cover plate 4 is hinged with one side of the top end of the upper floating box body 2; the bottom edge of the upper floating box body 2 and the top edge of the lower floating box body 3 are vertically and fixedly connected with a connecting plate 5; the connecting plates 5 in the adjacent floating island units are fixedly connected through a hydraulic semi-rigid connector 6; the lower floating box body 3 is fixedly connected with an anchoring ring 11 through an anchor chain 12; the top surface of the cover plate 4 and the bottom surface of the lower floating box body 3 are fixedly connected with a plurality of fiber grating structure deformation measuring devices (not shown in the figure).
The upper floating box body 2 and the lower floating box body 3 are both of hollow structures, the lower floating box body 3 can provide buoyancy for the floating island units, sand or gravel can be added into the upper floating box body 2 by opening the cover plate 4, and thus the independent floating height of each floating island unit can be adjusted, although all the upper floating box body 2 and the lower floating box body 3 are produced in a standardized manner, errors always occur, and manual installation operation is added, so that the sinking depths of the upper floating box body 2 in water are inconsistent, the top surfaces of the upper floating box body 2 are not flush, building models can be influenced, and the sinking depths of the upper floating box body 2 can be adjusted by adding the sand into the upper floating box body 2, and therefore the top surfaces or the cover plates 4 of all the upper floating box body 2 can be flush; the hydraulic semi-rigid connector 6 is a hydraulic damper, and can semi-rigidly connect the floating island units, so that the floating island unit is suitable for the marine bumpy environment; the fiber grating structure deformation measuring device has small appearance size, can not generate any interference on the strength and the flow field of a structure, is stuck on the surface of the floating island module unit by fast gel in a test, and measures the deformation condition of the floating island module unit under various load actions.
In a further optimized scheme, the breakwater module comprises a plurality of floating breakwater units; the floating breakwater unit comprises a large buoy 13; the top of the big buoy 13 is symmetrically and fixedly connected with two small buoys 14; the bottom of the large buoy 13 is symmetrically provided with a plurality of connecting rings 15; the connecting ring 15 is fixedly connected with the anchoring ring 11 through the anchor chain 12.
The two small buoys 14 are tangent to the large buoy 13, the two small buoys 14 are exposed out of the water surface, and the large buoy 13 is positioned below the water surface; in practical design, the optimal wave-eliminating effect can be achieved by changing the diameters of the two small buoys and the included angle between the connecting line of the two small buoys 14 and the large buoy 13. The wave dissipation device has the characteristics of simple structure and convenience in construction, and the numerical model calculation shows that: under the condition of the same sectional area, the structure has better wave dissipation effect than the traditional square box type and single cylinder type breakwater. The wave eliminating mechanism comprises two aspects, firstly, the large cylinder and the small cylinder on the wave-facing side can reflect wave energy through the upper cambered surface and the lower cambered surface together, and the large wave-facing area is larger than that of a box-type breakwater and a single-cylinder-type breakwater, so that more wave energy is ensured to be reflected once; secondly, because the energy of the waves is concentrated near the sea surface, the two small cylinders at the upper part of the large cylinder are arranged near the sea surface at certain intervals, so that the rest wave energy generates crushing, reflecting and dissipating effects when passing between the two small cylinders in sequence, and further plays a role in wave elimination; the results of wave breaking performance numerical values of the breakwaters with the three section forms are shown in fig. 10, the results are expressed by transmission coefficients, the smaller the results show that the wave breaking performance is better, and the result of the multi-buoy breakwater is the best.
In a further optimization scheme, the wave simulation module comprises a plurality of wave simulation units; a plurality of wave simulation units are arranged along the peripheral wall of the water pool 1; the wave simulation unit comprises a mounting seat 16 fixedly mounted on the top surface of the wall of the water pool 1, and a sliding rod 17 is horizontally and fixedly connected to the top surface of the mounting seat 16; one end of the sliding rod 17 is provided with a sliding block 20 in a sliding way; the bottom surface of the sliding block 20 is vertically and fixedly connected with a wave making plate 22; the bottom end of the wave making plate 22 extends into the water; a second motor 18 is also fixedly arranged on the top surface of the sliding rod 17; an output shaft of the second motor 18 is vertical to the sliding rod 17 and is fixedly connected with a rotary disc 19; the edge of the end face of the turntable 19, which is far away from the second motor 18, is coupled with a transmission rod 21; one end of the transmission rod 21 is hinged with the side of the slider 20.
Each second motor 18 is independently controlled, the second motor 18 rotates to drive the rotary disc 19 to rotate, and the rotary disc 19 can drive the sliding block 20 to reciprocate through the transmission rod 21, so that waves can be produced on the water surface.
In a further optimized scheme, the ocean current simulation module comprises a first annular pipe 23 and a second annular pipe 24 which are horizontally arranged; the first annular pipe 23 is fixedly connected to the top of the second annular pipe 24; the first annular pipe 23 and the second annular pipe 24 are sleeved outside the floating island module and the wave-lift prevention module and limited below the water surface; a plurality of water spray pipes 37 are arranged on the inner side of the first annular pipe 23 along the circumferential direction; a plurality of suction pipes 39 are arranged on the inner side of the second annular pipe 24 along the circumferential direction; each of the water spray pipe 37 and the water suction pipe 39 is provided with a pneumatic valve 38; one side of the first annular pipe 23 is communicated with a water inlet pipe 25; the water inlet pipe 25 penetrates through the water pool 1 and is communicated with an independent water tank 27 through a first water pump 26; one side of the bottom of the second annular pipe 24 is communicated with a water outlet pipe 28, and the water outlet pipe 28 penetrates through the water pool 1 and is communicated with the independent water tank 27 through a second water pump 29; the bottom end of the second annular pipe 24 is fixedly connected with the bottom surface of the water pool 1 through a plurality of supporting rods 30.
Besides the waves on the water surface, in a real marine environment, sea currents in many different directions can exist at one time; the ocean current simulation module provided by the invention can simulate ocean currents in the ocean, the first annular pipe 23 can spray water, the second annular pipe 24 can absorb water, each pneumatic valve 38 is independently controlled, one or more pneumatic valves 38 at different positions of the first annular pipe 23 can be opened to spray water according to different requirements, the second annular pipe 24 can also be opened to absorb water by one or more pneumatic valves 38 at different positions, so that an ocean current can be formed, and the direction of the ocean current can be adjusted by automatically controlling the pneumatic valves 38; the independent water tank 27 can be used as a buffer area, the second annular pipe 24 sucks water in the water tank 1 into the independent water tank 27 through the water suction pipe 39 by the second water pump 29, and the first annular pipe 23 sprays the water in the independent water tank 27 into the water tank 1 through the water spray pipe 37 by the first water pump 26, so that the cyclic utilization is realized; mechanical seals are provided at the junction of the inlet pipe 25 and outlet pipe 28 with the wall of the pool 1.
In a further optimized scheme, an underwater camera 32, an ultrasonic current meter 33, a resistance wave height meter 34 and a wheel type anemometer 35 are arranged at the bottom of the water pool 1.
The underwater camera 32 is arranged at the bottom of the water pool 1 and upwards shoots the visual motion conditions of the whole floating island module and the breakwater module; the ultrasonic current meter 33 is arranged in water and can monitor the flow velocity of the simulated ocean current, the resistance wave height meter 34 is arranged on the water surface and can be used for monitoring the size of the simulated waves, and the wheel-type anemometer 35 extends above the sea surface and can be used for monitoring the wind power simulated by the wind field simulator 31; the ultrasonic current meter 33, the resistance wave height meter 34 and the wheel type anemometer 35 are fixedly arranged between the wind field simulator 31 and the breakwater module.
Further optimizing scheme, the roof of the top of floating island module fixed mounting has laser matrix formula motion displacement measurement mechanism.
The laser matrix type movement displacement measuring mechanism comprises a matrix laser transmitter 40 and a plurality of high-definition cameras 36; the matrix laser transmitter 40 comprises a laser, a light guide arm and a matrix lens. The laser generates continuous laser beams, dense laser dot matrixes are generated through the laser guide arm and the matrix lens at the front end of the laser guide arm, the measured floating island module and the breakwater module are irradiated downwards from the upper side, the high-definition camera 36 is used for shooting the floating island module, the breakwater module and the laser dot matrixes on the surfaces of the floating island module and the breakwater module on the other side, the image processing program processes and operates pictures of the laser dot matrixes on the surface of an object to obtain the motion displacement of each laser dot, and then the motion displacement of each unit module of the floating island module and the breakwater device module is reconstructed.
In a further optimization scheme, each pneumatic valve 38 is independently controlled; by independently controlling the pneumatic valves 38, the direction and magnitude of the ocean current can be controlled.
The matrix laser transmitter 40, the high-definition camera 36, the wind field simulator 31, the underwater camera 32, the ultrasonic current meter 33, the resistance type wave height meter 34, the wheel type anemometer 35, the first water pump 26, the second water pump 29, the pneumatic valve 38, the first motor 7 and the second motor 18 are all electrically connected with an external computer.
A use method of a laboratory simulation device of an offshore floating island-wave-prevention-anchoring system comprises the following steps:
1) installing a tray, a floating island module, a breakwater module, a wave simulation module and a ocean current simulation module into a water pool 1;
2) injecting water into the water pool 1;
3) tests were carried out.
The water level in the pool 1 is located at the contact surface of the upper floating box 2 and the lower floating box 3 and ensures that the bottom end of the wave making plate 22 extends into the water.
When the invention is used, a plurality of floating island units are installed according to the test requirement, the upper floating box body 2 and the lower floating box body 3 are fixedly connected through bolts, and then the adjacent floating island units are connected through the hydraulic semi-rigid connector 6; then, arranging breakwater modules at the peripheries of all the floating island units, connecting adjacent large buoys through hydraulic semi-rigid connectors 6, fixedly connecting all the floating island units and all the breakwater units with anchoring rings 11 on the top surface of a tray 8 through anchor chains 12, wherein the length of the anchor chains 12 and the thickness of the tray 8 are not more than the top surface of the pool 1 and not less than the bottom end of a wave-making plate 22; arranging an ultrasonic current meter 33, a resistance wave height meter 34 and a wheel type anemometer 35 between the breakwater module and the wind field simulator 31, adjusting the height to a proper height, and installing an underwater camera 32 at a proper position; then water is injected into the water pool 1, the floating island module and the breakwater module can float on the water surface until the anchor chain 12 is tightened and the water surface is positioned on the contact surface of the upper floating box body 2 and the lower floating box body 3, the height of each floating island unit is observed, sand and gravel are added into the upper floating box body 2 to enable the heights of all the floating island units to be consistent, the cover plate 4 is covered, the first motor 7 is started to drive the tray 8 to rotate to a proper angle, the floating island module and the breakwater module can slowly follow and rotate until the floating island module and the breakwater module are stable, then the wind field simulator 31 is started to simulate sea wind, part of the second motor 18 is started, the wave-making plate 22 can reciprocate in the water to generate waves, then the pneumatic valves 38 on the first annular pipe 23 and the second annular pipe 24 are started according to experimental requirements, the number of the pneumatic valves 38 started on the first annular pipe 23 is consistent with the number of the pneumatic valves 38 started on the second annular pipe 24, to ensure the balance of water inlet and outlet, then the first water pump 26 and the second water pump 29 are started, the spray pipe 37 on the first annular pipe 23 starts to spray water, and the suction pipe 39 on the second annular pipe 24 starts to suck water, so that the ocean current under the sea surface can be simulated; and starting the ultrasonic current meter 33, the resistance wave height meter 34, the wheel type anemometer 35, the underwater camera 32, the matrix laser emitter 40 and the high-definition cameras 36, recording data, and uploading the data to a computer, so that the data can be analyzed.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (5)
1. A laboratory simulation device for an offshore floating island-wave-prevention-anchoring system is characterized by comprising: a pool (1); a first motor (7) is fixedly arranged under the water pool (1); an output shaft of the first motor (7) vertically penetrates through a bottom plate of the water pool (1) and is fixedly provided with a tray (8); the top surface of the tray (8) is provided with a plurality of through grooves (9); the through grooves (9) are arranged along the circumference; a roller (10) is fixedly arranged in the through groove (9); the roller (10) is abutted against the bottom of the water pool (1); the top surface of the tray (8) is fixedly connected with a plurality of anchoring rings (11); a floating island module is arranged in the center of the water surface of the pool (1); the floating island module is fixedly connected with the anchoring ring (11) through a plurality of anchor chains (12); breakwater modules are arranged around the floating island modules; the breakwater module is fixedly connected with the anchoring ring (11) through a plurality of anchor chains (12); a wave simulation module and an ocean current simulation module are circumferentially arranged on the inner side wall of the pool (1); a plurality of wind field simulators (31) are fixedly arranged on the roof above the pool (1); the wind field simulator (31) faces the floating island module;
the floating island module comprises a plurality of floating island units; the floating island unit comprises an upper floating box body (2) and a lower floating box body (3); the lower floating box body (3) is of a hollow closed box type structure; the upper layer floating box body (2) is fixedly arranged on the top surface of the lower layer floating box body (3) through screws; a cover plate (4) is arranged on the top surface of the upper floating box body (2); one side of the cover plate (4) is hinged with one side of the top end of the upper floating box body (2); the bottom edge of the upper layer floating box body (2) and the top edge of the lower layer floating box body (3) are vertically and fixedly connected with a connecting plate (5); the connecting plates (5) in the adjacent floating island units are fixedly connected through a hydraulic semi-rigid connector (6); the lower floating box body (3) is fixedly connected with the anchoring ring (11) through the anchor chain (12); the top surface of the cover plate (4) and the bottom surface of the lower floating box body (3) are fixedly connected with a plurality of fiber grating structure deformation measuring devices;
the breakwater module comprises a plurality of floating breakwater units; the floating breakwater unit comprises a large buoy (13); the top of the large buoy (13) is symmetrically and fixedly connected with two small buoys (14); the bottom of the large buoy (13) is symmetrically provided with a plurality of connecting rings (15); the connecting ring (15) is fixedly connected with the anchoring ring (11) through the anchor chain (12);
the wave simulation module comprises a plurality of wave simulation units; the wave simulation units are arranged along the peripheral wall of the water pool (1); the wave simulation unit comprises a mounting seat (16) fixedly mounted on the top surface of the pool wall of the pool (1), and a sliding rod (17) is horizontally and fixedly connected to the top surface of the mounting seat (16); one end of the sliding rod (17) is provided with a sliding block (20) in a sliding manner; a wave making plate (22) is vertically and fixedly connected to the bottom surface of the sliding block (20); the bottom end of the wave making plate (22) extends into the water; a second motor (18) is also fixedly arranged on the top surface of the sliding rod (17); an output shaft of the second motor (18) is perpendicular to the sliding rod (17) and is fixedly connected with a rotary table (19); the edge of the end face, far away from the second motor (18), of the rotary disc (19) is connected with a transmission rod (21) in a shaft mode; one end of the transmission rod (21) is hinged with the side surface of the sliding block (20);
the ocean current simulation module comprises a first annular pipe (23) and a second annular pipe (24) which are horizontally arranged; the first annular pipe (23) is fixedly connected to the top of the second annular pipe (24); the first annular pipe (23) and the second annular pipe (24) are sleeved outside the floating island module and the breakwater module and limited below the water surface; a plurality of water spray pipes (37) are arranged on the inner side of the first annular pipe (23) along the circumferential direction; a plurality of water suction pipes (39) are arranged on the inner side of the second annular pipe (24) along the circumferential direction; each water spray pipe (37) and the water suction pipe (39) are provided with pneumatic valves (38); one side of the first annular pipe (23) is communicated with a water inlet pipe (25); the water inlet pipe (25) penetrates through the water pool (1) and is communicated with an independent water tank (27) through a first water pump (26); a water outlet pipe (28) is communicated with one side of the bottom of the second annular pipe (24), and the water outlet pipe (28) penetrates through the water pool (1) and is communicated with the independent water tank (27) through a second water pump (29); the bottom of second ring pipe (24) through a plurality of branch (30) with pond (1) bottom surface fixed connection.
2. The laboratory simulation device of offshore floating island-wave defense-anchoring system according to claim 1, characterized in that: an underwater camera (32), an ultrasonic current meter (33), a resistance type wave height meter (34) and a wheel type anemometer (35) are mounted at the bottom of the pool (1).
3. The laboratory simulation device of offshore floating island-wave defense-anchoring system according to claim 1, characterized in that: and a laser matrix type movement displacement measuring mechanism is fixedly mounted on the roof above the floating island module.
4. A method for using a laboratory simulation apparatus for offshore floating island-wave breaking-anchoring system, which is implemented by using the laboratory simulation apparatus for offshore floating island-wave breaking-anchoring system according to any one of claims 1 to 3, wherein: the method comprises the following steps:
1) installing the tray, the floating island module, the breakwater module, the wave simulation module and the ocean current simulation module into the water pool (1);
2) injecting water into the water pool (1);
3) tests were carried out.
5. The use method of the laboratory simulation device for offshore floating island-wave defense-anchoring system according to claim 4, characterized in that: 2) the water level of the water injected into the water tank (1) is positioned on the contact surface of the upper floating box body (2) and the lower floating box body (3) and the bottom end of the wave making plate (22) is ensured to extend into the water.
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