A tow tank wave absorbing system and method for rapidly dissipating energy

Abstract

The present application relates to a drag tank wave absorbing system and a wave absorbing method for quickly dissipating energy, wherein the wave absorbing system comprises a slide bar horizontally installed on a side wall of a tank and horizontally movable along the side wall; each wave absorbing unit comprises a wave absorbing mechanism and at least two rotating supports, one end of the rotating support is connected with the side wall and rotatable relative to the side wall, the other end is connected with the wave absorbing mechanism and rotatable relative to the wave absorbing mechanism, and each wave absorbing unit further comprises a traction mechanism comprising a traction rope, one end of the traction rope is connected with the slide bar, and the other end is connected with the wave absorbing mechanism; a power device is configured to drive the slide bar to horizontally move along the side wall; and a control device comprises a servo drive motor and an encoder for recording the number of rotations of the servo drive motor, and the control device controls the operating parameters of the servo drive motor. The drag tank wave absorbing system for quickly dissipating energy can overcome the defect that the positions of the push plate rising and falling are not accurate in the existing experiment.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ship experiment, in particular to a towed tank wave absorbing system and method for quickly dissipating energy. BACKGROUND

[0002] The towed tank is a device for water dynamics experiment, which is a test tank. A ship model can move in the test tank. The movement, speed, propulsion power and other performances of the ship are understood through the test method. The test is performed by an electric tractor towing the ship model. During the test, whether the ship model moves or the wave generated by the wave maker will disturb the water surface. A long time is needed to wait for the water surface to be still before the next working condition test is carried out. The test time is long and the test efficiency is low. After a test is completed, an operator lowers a push plate to the water surface to absorb the wave of the tank. After the wave is absorbed, the push plate is raised and separated from the water surface. The rising and lowering distance of the push plate is completely judged by the naked eye of the operator. However, in actual situations, the wave of the next test may still hit the push plate after the push plate is raised, which will affect the accuracy of the test. Or the push plate may be completely immersed in the water after being lowered and located below the wave, which cannot play a role in wave absorption.

[0003] In addition, the existing push plate moves to the side wall of the water under the push of the wave. Reflection waves are generated between the push plate and the side wall, which adversely affect wave absorption. SUMMARY

[0004] The present application provides a towed tank wave absorbing system for quickly dissipating energy, which can overcome the defect that the position of the push plate is not accurate in the existing experiment, thereby affecting the accuracy of the test after the push plate is raised and affecting the wave absorption effect when the push plate is lowered.

[0005] The towed tank wave absorbing system for quickly dissipating energy of the present application comprises:

[0006] A sliding rod is horizontally installed on one side wall of the tank and can move horizontally along the side wall.

[0007] One or more wave absorbing units, each of which comprises a wave absorbing mechanism and at least two rotating supports, one end of the rotating support is connected with the side wall and can rotate relative to the side wall, the other end is connected with the wave absorbing mechanism and can rotate relative to the wave absorbing mechanism, the plane in which the rotating support rotates is the same plane as the plane in which the sliding rod is located or is parallel to the plane in which the sliding rod is located, and each wave absorbing unit further comprises a traction mechanism comprising a traction rope, one end of the traction rope is connected with the sliding rod, and the other end is connected with the wave absorbing mechanism.

[0008] A power device can drive the sliding rod to move horizontally along the side wall.

[0009] A control device, the power device comprising a servo drive motor and an encoder for recording the number of turns of the servo drive motor, the control device being in communication connection with the servo drive motor and the encoder respectively, the control device calculating the distance of the wave-absorbing mechanism being lifted or lowered according to the number of turns sent by the encoder, and comparing the distance with the distance set by the control device and adjusting the power output of the servo drive motor in real time until the calculated distance and the set distance are the same.

[0010] As a preferred, the power device further comprises a reducer for reducing the speed of the servo motor, a nut driven to rotate by the reducer, a screw threadedly matched with the nut, and a screw shaft coupling connected with the screw.

[0011] As a preferred, the power device further comprises an oil storage pipe covering the outside of the screw for receiving the lubricating oil dripping from the screw, the oil storage pipe comprising a first pipe section at one end of the reducer and a second pipe section at the other end of the reducer.

[0012] As a preferred, the first pipe section and the second pipe section each comprise a fixed part and a rotating part, one side of the rotating part being hinged to one side of the fixed part, the other side of the rotating part being separated from the other side of the fixed part in the open state.

[0013] As a preferred, the traction mechanism further comprises a traction rope transmission seat, the traction rope transmission seat comprising a mounting shaft arranged horizontally and perpendicularly to the slide rod and a rotating wheel mounted on the mounting shaft through a bearing, the mounting shaft being fixedly connected with the side wall of the pool through a fixing member, the outer periphery of the rotating wheel being provided with an annular traction groove capable of accommodating the traction rope in the circumferential direction, the rotating wheel supporting the part of the traction rope between the two ends of the traction rope to tension the traction rope.

[0014] As a preferred, the part of the traction rope between the end connected with the slide rod and the traction rope transmission seat is parallel to the slide rod.

[0015] As preferred, the traction mechanism further comprises a pipe clamping assembly, the pipe clamping assembly comprises a first pipe clamping piece and a second pipe clamping piece, the first pipe clamping piece comprises a first arc-shaped part in a half ring shape and two first plate-shaped parts respectively located at two ends of the first arc-shaped part, the second pipe clamping piece comprises a second arc-shaped part in a half ring shape and two second plate-shaped parts respectively located at two ends of the second arc-shaped part, the first arc-shaped part of the first pipe clamping piece and the second arc-shaped part of the second pipe clamping piece are matched with the outer wall of the slide rod, the pipe clamping assembly further comprises a first bolt and a second bolt, the first bolt passes through the first plate-shaped part located at one end of the first arc-shaped part and the second plate-shaped part opposite to the first plate-shaped part, the second bolt passes through the first plate-shaped part located at the other end of the second arc-shaped part and the second plate-shaped part opposite to the first plate-shaped part, the outer wall of the first pipe clamping piece or the outer wall of the second pipe clamping piece is provided with a protruding connecting part, and the protruding connecting part is provided with a hole for connecting with the traction rope.

[0016] As preferred, the other end of the traction rope is connected with the wave absorbing mechanism between the two rotating supports.

[0017] As preferred, the wave absorbing mechanism comprises a frame-shaped base and a wave absorbing grid connected with the base, the wave absorbing grid comprises a plurality of grid bars arranged in parallel with each other, the length direction of the grid bars is parallel to the length direction of the side wall of the pool, and there is a gap between adjacent grid bars.

[0018] As preferred, the grid bars are perpendicular to the base, the base forms an angle of 5-10° with the horizontal plane, and the side of the base away from the side wall is lower than the side of the base close to the side wall.

[0019] As preferred, the surface of the grid bars and the surface of the base are uniformly coated with a protective film for corrosion prevention.

[0020] The application further provides a wave absorbing method, the wave absorbing method is performed by using the wave absorbing system, and 60-70% of the wave absorbing mechanism of the wave absorbing system is located on the water surface during wave absorbing.

[0021] Compared with the prior art, the application has the following beneficial effects:

[0022] 1. The slide rod, rotating support and wave absorbing mechanism of the quick energy dissipation tow tank wave absorbing system form a parallelogram linkage mechanism, the traction mechanism provides power for the parallelogram linkage mechanism, so that the wave absorbing mechanism is driven to rise or fall by driving the horizontal movement of the slide rod. The control mechanism can control the parameters of the horizontal movement of the slide rod, such as speed and distance, by controlling the power device, so as to control the automatic rising or falling action of the multiple wave absorbing mechanisms according to the set parameters such as distance and speed. Compared with the manual visual estimation and manual operation mode, the positioning accuracy is higher, the consistency and accuracy of the work can be maintained, the controllability of wave making can be realized, the required power can be reduced, and the structure is simple, the occupied space is small, the adaptability is strong, the cost is low, and the intelligent controllability is achieved.

[0023] 2. The control device is respectively connected with the servo drive motor and the encoder in communication. The number of turns sent by the encoder is used to calculate the theoretical distance of the rising or falling of the wave absorbing mechanism, and the theoretical distance is compared with the actual measured distance, and the running parameters of the servo drive motor are adjusted in real time. In this way, the parameters of the rising and falling movement of the wave absorbing mechanism can be adjusted more accurately, so that the requirements can be met more accurately.

[0024] 3. The wave absorbing grid includes a plurality of parallel grid bars, the length direction of the grid bars is parallel to the length direction of the side wall of the pool, and there is a gap between adjacent grid bars. Compared with the whole wave absorbing plate, the plurality of grid bars can divide the waves more finely, and the broken waves pass through the gap between the grid bars, so that the impact on the wave absorbing mechanism is smaller, the wave absorbing mechanism is more stable, and the waves generated by the movement of the wave absorbing mechanism under the action of the waves can be reduced.

[0025] 4. The angle formed by the plane formed by the plurality of spaced grids and the horizontal plane is 5°-10°, which can better meet the waves coming from the oblique upper side and break the waves. This arrangement can better dissipate the waves in the pool, accelerate the breaking of the waves propagating to the wave absorbing mechanism, and facilitate the flow of the broken waves into the pool through the grid spacing and the gap behind the edge wave absorbing mechanism, thereby absorbing the ship waves, transverse waves and other waves in the pool, reducing the influence of the reflected waves of the side wall of the pool, and improving the accuracy of the test. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The structure diagram of the quick energy dissipation tow tank wave absorbing system applied in the pool according to an embodiment of the application.

[0027] Figure 2 The structure diagram of the quick energy dissipation tow tank wave absorbing system according to an embodiment of the application.

[0028] Figure 3Structure diagram of the damping mechanism of the quick energy dissipation towing pool damping system according to an embodiment of the present application.

[0029] Figure 4 Structure diagram of the rotating support of the quick energy dissipation towing pool damping system according to an embodiment of the present application.

[0030] Figure 5 Enlarged structure diagram of the traction rope transmission seat of the quick energy dissipation towing pool damping system according to an embodiment of the present application.

[0031] Figure 6 Enlarged structure diagram of the pipe clamping assembly of the quick energy dissipation towing pool damping system according to an embodiment of the present application.

[0032] Figure 7 Enlarged structure diagram of the bracket of the quick energy dissipation towing pool damping system according to an embodiment of the present application.

[0033] Figure 8 Enlarged structure diagram of the power device of the quick energy dissipation towing pool damping system according to an embodiment of the present application.

[0034] Reference signs

[0035] A damping system

[0036] 1 sliding rod, 11 bracket, 111 third L-shaped plate, 112 mounting shaft, 113 sliding wheel, 114 sliding rod groove;

[0037] 2 damping unit, 21 damping mechanism, 211 base, 212 damping grid, 2121 grid strip, 22 rotating support, 221 first rotating pipe, 222 second rotating pipe, 223 pipe fitting, 224 first L-shaped plate, 225 first mounting shaft, 226 second mounting shaft, 23 traction mechanism, 231 traction rope, 232 traction rope transmission seat, 2321 third mounting shaft, 2322 rotating wheel, 2323 traction groove, 2324 second L-shaped plate, 24 pipe clamping assembly, 241 first pipe clamping fitting, 2411 first arc-shaped part, 2412 first plate-shaped part, 242 second pipe clamping fitting, 2421 second arc-shaped part, 2422 second plate-shaped part, 243 first bolt, 244 second bolt, 245 protruding connecting part, 246 hole;

[0038] 3 power device, 31 servo drive motor, 32 universal joint, 33 motor support, 34 oil storage pipe, 341 first pipe section, 3411 fixed part, 3412 rotating part, 3413 handle, 342 second pipe section, 3421 fixed part, 3422 rotating part, 3423 handle, 35 screw rod, 36 speed reducer;

[0039] B side wall;

[0040] C horizontal plane. DETAILED DESCRIPTION

[0041] The present application provides a kind of quick dissipating energy's towed basin wave breaking system A, as Figure 1 Shown, it is installed on the side wall B of towed basin, for breaking the wave generated by ship model movement.As Figure 2 Shown, wave breaking system A includes slide bar 1, wave breaking unit 2, power device 3 and control device (not shown in the figure), wherein slide bar 1 is horizontally installed on the side wall B of the pool, and the slide bar 1 can be moved horizontally along the side wall B.The wave breaking system A includes one or more wave breaking units 2, in the embodiment, wave breaking system A includes multiple wave breaking units 2 arranged along the length direction of slide bar 1, i.e.the length direction of the side wall B of the pool, each wave breaking unit 2 includes wave breaking mechanism 21 and at least two rotating supports 22, one end of the rotating support 22 is connected with the side wall B and can rotate relative to the side wall B, the other end is connected with the wave breaking mechanism 21 and can rotate relative to the wave breaking mechanism 21.Wave breaking unit 2 further includes traction mechanism 23, the traction mechanism 23 includes traction rope 231, one end of the traction rope 231 is fixedly connected with the slide bar 1, the other end is fixedly connected with the wave breaking mechanism 21.Power device 3 can drive the slide bar 1 to move horizontally along the side wall B.

[0042] When the drive mechanism drives the slide bar 1 to move horizontally to the left in Figure 2 , the slide bar 1 moves with one end of the traction rope 231 to the left in Figure 2 , the wave breaking mechanism 21 is subjected to the force to the left and upward in Figure 2 , moves upward and to the left, and the one end of the rotating support 22 connected with the wave breaking mechanism 21 rotates around the other end.When the slide bar 1 moves to the right in Figure 2 , the wave breaking mechanism 21 moves downward and to the right.

[0043] The slide bar 1, rotating support 22 and wave breaking mechanism 21 of the wave breaking system A of the present application form a parallelogram linkage mechanism, and the traction mechanism 23 provides power for the parallelogram linkage mechanism, so that the wave breaking mechanism 21 can be driven to rise or fall by driving the horizontal movement of the slide bar 1.The control mechanism can control the parameters such as speed and distance of the horizontal movement of the slide bar 1 by controlling the power device 3, so as to control the multiple wave breaking mechanisms 21 to automatically realize the rising or falling action according to the set parameters such as distance and speed.Compared with the manual visual estimation and manual operation mode, the positioning accuracy is higher, the consistency and accuracy of work can be maintained, the controllability of wave making can be realized, the required power can be reduced, and the wave breaking system A has the characteristics of simple structure, small space occupation, strong adaptability, low cost and intelligent controllability.

[0044] The wave breaking system of the present application further comprises a power device 3, which comprises a servo drive motor 31 and an encoder (not shown in the figure) for recording the number of turns of the servo drive motor 31. The control device is respectively connected with the servo drive motor 31 and the encoder. According to the number of turns sent by the encoder, the distance of the lifting or lowering of the wave breaking mechanism 21 is calculated, and the distance is compared with the distance set by the control device, and the power output of the servo drive motor is adjusted in real time until the calculated distance is the same as the set distance. In this way, the parameters of the lifting and lowering movement of the wave breaking mechanism 21 can be more accurately adjusted to more accurately meet the requirements. In the present embodiment, the servo drive motor 31 is an alternating current servo drive motor 31.

[0045] The PLC controller is provided with an automatic fault alarm. When a fault occurs in the system or mechanical damage occurs, the automatic alarm can emergency brake the power device 3. According to the needs, the wave breaking mechanism 21 can be stopped at any time during the lifting and lowering process, the position is protected, and the automatic fault alarm function is realized.

[0046] Meanwhile, the setting of the parallelogram linkage mechanism can make the lifting height of the wave breaking mechanism 21 higher. The freeboard of the pool is 900 mm. Through the system, the wave breaking mechanism 21 can be lifted to a height of 800 mm, and there is only a blind area of 100 mm, which can adapt to more pools and the case of large wave height of the wave generator. Further, the overall structure of the system is simple and easy to maintain. The fault points of the transmission mechanism can occur at the bearing and the steel wire rope, and can be found and replaced.

[0047] In the present embodiment, the length of the slide rod 1 is about 400 meters. 108 wave breaking units 2 can be arranged along the slide rod 1, so that the 108 wave breaking mechanisms 21 can be lifted and lowered at the same time, ensuring the consistency of the movement of the wave breaking mechanisms 21.

[0048] In the present embodiment, the power device 3 further comprises a speed reducer for reducing the speed of the servo motor, a screw rod driven to rotate by the speed reducer, a nut sleeved on the screw rod and threadedly matched with the screw rod, and a screw rod coupling connected with the nut. The speed reducer can be a linear speed reducer. The screw rod and the nut convert the movement of the speed reducer into the linear movement of the slide rod 1, and the linear driving of the slide rod 1 by the drive motor is realized through this structure. Meanwhile, the present application adopts the servo drive motor 31 and the speed reducer as the power device 3, which occupies a smaller space, has strong controllability and adaptability, has fewer fault points, and is easy to maintain. Further, the cooperation of the alternating current servo drive motor 31 and the speed reducer has high efficiency, small motor power, energy saving and environmental protection. Figure 2As shown, one end of the slide bar 1 is provided with a slide bar 1 coupling, and a universal joint 32 is arranged between the screw coupling and the slide bar 1 coupling. The universal joint 32 can more accurately control the forward and backward movement of the transmission main shaft, avoid jamming, and ensure the stability of the movement of the slide bar 1.

[0049] As shown in the drawings, Figure 8 As shown, the power device 3 further comprises an oil storage pipe 34 covering the outside of the screw 35 for receiving the lubricating oil dripping from the screw 35, the oil storage pipe 34 comprising a first pipe section 341 at one end of the speed reducer 36 and a second pipe section 342 at the other end of the speed reducer 36. The first pipe section 341 and the second pipe section 342 each comprise a fixed part 3411, 3421 and a rotating part 3412, 3422, one side of the rotating part 3412, 3422 being hinged to one side of the fixed part 3411, 3421, and the other side of the rotating part 3412, 3422 being together with the other side of the fixed part 3411, 3421 in the closed state and being separated in the open state. The rotating part 3412, 3422 is further provided with a handle 3413, 3423, and the handle 3413, 3423 is grasped to apply an upward force to make the rotating part 3412, 3422 rotate away from the fixed part 3411, 3421, thereby opening the oil storage pipe 34 and cleaning the lubricating oil in the oil storage pipe 34. The oil storage pipe 34 can prevent the lubricating oil of the screw 35 from dripping into the pool, and the openable structure of the oil storage pipe 34 makes it easy to clean the lubricating oil inside.

[0050] In the system, the power device 3 further comprises a motor support 33 arranged at the bottom of the speed reducer, which is fixedly connected with the pool wall of the pool for supporting the speed reducer, the servo drive motor 31 and the oil storage pipe 34.

[0051] The side wall B of the pool is provided with a plurality of brackets 11 for supporting the slide bar 1, the brackets 11 being located below the slide bar 1, the bracket 11 comprising a third L-shaped plate 111, a mounting shaft 112 and a sliding wheel 113, the third L-shaped plate 111 being fixedly connected with the side wall B of the pool, one end of the mounting shaft 112 being fixedly connected with the third L-shaped plate 111, and the other end being provided with a bearing (not shown in the drawings), the sliding wheel 113 being mounted on the mounting shaft 112 through the bearing and being rotatable relative to the mounting shaft 112, and the surface formed by the rotation being the same plane as the plane where the slide bar 1 is located, and the outer wall of the sliding wheel 113 being provided with a slide bar groove 114 extending in the circumferential direction, the slide bar groove 114 and the bottom of the slide bar 1 forming a rolling fit. Through this structure, rolling friction is formed between the slide bar 1 and the sliding wheel 113, and the slide bar 1 can smoothly slide above the plurality of sliding wheels 113.

[0052] As shown in the drawings, Figure 5As shown, the traction mechanism 23 also includes a traction rope transmission seat 232. The traction rope transmission seat 232 includes a mounting shaft arranged horizontally and perpendicular to the slide bar 1, and a rotating wheel 2322 mounted at one end of the mounting shaft via a bearing. One end of the mounting shaft is fixed to a second L-shaped plate 2324, which is fixedly connected to the side wall B of the pool. The outer circumference of the rotating wheel 2322 is circumferentially provided with an annular traction groove 2323 for accommodating the traction rope 231. The traction rope transmission seat 232 supports the portion between the two ends of the traction rope 231 to tension the traction rope 231. In this embodiment, the portion of the traction rope 231 from the end connected to the slide bar 1 to the traction rope transmission seat 232 is parallel to the slide bar 1.

[0053] like Figure 2 The traction mechanism 23 further includes a clamping tube assembly 24, such as Figure 6 As shown, the tube clamping assembly 24 includes a first tube clamping member 241223 and a second tube clamping member 242223. The tube clamping assembly 24 includes a first tube clamping member 241223 and a second tube clamping member 242223. The first tube clamping member 241223 includes a semi-annular first arc portion 2411 and two first plate-shaped portions 2412 located at both ends of the first arc portion 2411. The second tube clamping member 242223 includes a semi-annular second arc portion 2421 and two second plate-shaped portions 2422 located at both ends of the second arc portion 2421. The first arc portion 2411 and the second tube clamping member 2422 The second curved portion 2421 of the clamping member 23 engages with the outer wall of the slide bar 1. The clamping member 24 further includes a first bolt 243 and a second bolt 244. The first bolt 243 passes through the first plate-shaped portion 2412 at one end of the first curved portion 2411 and the second plate-shaped portion 2422 opposite thereto. The second bolt 244 passes through the first plate-shaped portion 2412 at the other end of the second curved portion and the second plate-shaped portion 2422 opposite thereto. A protruding connecting portion 245 is provided on the outer wall of the first clamping member 241223 or the outer wall of the second clamping member 242223. The protruding connecting portion 245 is provided with a hole 246 for connecting with the traction rope 231. The traction rope 231 is fixed to the clamping member 24, thereby being fixed relative to the slide bar 1. This fixing method is stable and reliable.

[0054] like Figure 2 As shown, the position where the other end of the traction rope 231 is connected to the wave-breaking mechanism 21 is located between the two rotating brackets 22. In this embodiment, the position where the other end of the traction rope 231 is connected to the wave-breaking mechanism 21 is the same as the distance between the two rotating brackets 22.

[0055] By configuring the power device 3 and the traction mechanism 23, the movement of the quadrilateral linkage mechanism becomes smoother.

[0056] As Figure 4 shown in the embodiment, the rotating support 22 comprises a first rotating pipe 221 and a second rotating pipe 222 which are parallel to each other, and two pipe members 223 or rod members which are parallel to each other, the first rotating pipe 221 is connected with the side wall B of the pool through a first fixing member, the first fixing member comprises a first L-shaped plate 224 and a first mounting shaft 225 which is fixedly connected with the first L-shaped plate 224, the first rotating pipe 221 is sleeved outside the first mounting shaft 225 and can rotate around the first mounting shaft 225. The second rotating pipe 222 is connected with the wave breaking mechanism 21 through a second fixing member, the second fixing member comprises a second mounting shaft 226, both ends of the second mounting shaft 226 are fixedly connected with the wave breaking mechanism 21, the second rotating pipe 222 is sleeved outside the second mounting shaft 226 and can rotate around the second mounting shaft 226. Through this structure, one end of the rotating support 22 can rotate relative to the side wall B and the slide rod 1, and the other end can rotate relative to the wave breaking mechanism 21, thereby forming a parallelogram linkage mechanism.

[0057] As Figure 3 shown, the wave breaking mechanism 21 comprises a frame-shaped base 211 and a wave breaking grid 212 connected with the base 211, the wave breaking grid 212 comprises a plurality of grid bars 2121 which are arranged parallel to each other, the length direction of the grid bars 2121 is parallel to the length direction of the side wall B of the pool, and there is a gap between adjacent grid bars 2121. Compared with a whole wave breaking plate, the plurality of grid bars 2121 can divide the waves more finely, and at the same time, the broken waves pass through the gap between the grid bars 2121, so the impact on the wave breaking mechanism 21 is smaller, the wave breaking mechanism 21 is more stable, and the waves generated by the movement of the wave breaking mechanism 21 under the action of the waves can be reduced.

[0058] The base 211 comprises four rod members (not shown in the figure) which are fixedly connected in sequence, and the four rod members form a support frame with a rectangular frame structure, and the four rod members can be connected through a pin or a bolt or integrally formed. The width of each rod member should not be too large, for example, the width is at least not larger than the width of a single grid bar 2121. In this way, on the one hand, the broken waves can be accelerated to enter the rear of the wave breaking mechanism 21, i.e. the lower right in Figure 3 , on the other hand, the area of the support frame is small, and the reflected waves generated by the impact of the waves on the support frame can be reduced. The grid bars 2121 can be fixedly connected with the support frame through welding. The base 211 further comprises a plurality of support cross beams (not shown in the figure) arranged in the transverse direction of the pool; the base 211 further comprises a plurality of short cross beams arranged in the longitudinal direction of the pool, used for connecting two support cross beams arranged in the middle of the support frame, and the support cross beams and the short cross beams are both L-shaped angle steels.

[0059] In the embodiment, the grid bars 2121 are perpendicular to the base 211, the base 211 forms an angle of 5-10° with the horizontal plane C, and the side of the base 211 far from the side wall B is lower than the side of the base 211 close to the side wall B. As shown in the figure, the structure makes the plane formed by the plurality of spaced grids form an angle of 5-10° with the horizontal plane C, and can meet the waves from the upper left and break the waves. Figure 3 The arrangement can better dissipate the waves in the pool, accelerate the breaking of the waves propagating to the wave breaking mechanism 21, and facilitate the flow of the broken waves into the pool through the spaces between the grids and the gap behind the wave breaking mechanism 21, so as to absorb the ship waves, transverse waves and other waves in the pool, reduce the influence of the reflected waves of the side wall B, and improve the test accuracy. Figure 3

[0060] In addition, the surfaces of the grid bars 2121 and the surface of the base 211 are uniformly coated with a protective film for corrosion prevention, so as to prevent the wave breaking mechanism 21 from being corroded and oxidized by air and water during the working process. In the embodiment, the protective film is a corrosion-resistant paint.

[0061] In the wave breaking process, it is preferred that 2 / 3 of the wave breaking mechanism 21 is located on the water surface of the towing pool 1, which can better dissipate the waves in the pool, and the reflected waves propagating to the wave breaking grid 23 are blocked by the wave breaking mechanism 21 and are difficult to climb up the wave breaking mechanism 21 and enter the middle part of the towing pool, so as to further effectively suppress the formation of reflected waves and further improve the wave breaking performance.

[0062] The wave breaking method of the present application uses the wave breaking system as described above to break waves, and 60-70% of the wave breaking mechanism of the wave breaking system is located on the water surface during wave breaking. The arrangement can better dissipate the waves in the pool, and the reflected waves propagating to the wave breaking grid 23 are blocked by the wave breaking mechanism 21 and are difficult to climb up the wave breaking mechanism 21 and enter the middle part of the towing pool, so as to further effectively suppress the formation of reflected waves and further improve the wave breaking performance. The wave breaking mechanism of the wave breaking system can obtain the best wave breaking effect when 2 / 3 of the wave breaking mechanism is located on the water surface.

[0063] The above embodiments are only exemplary embodiments of the present application and are not used to limit the present application. The protection scope of the present application is defined by the claims. Various modifications or equivalent replacements made by those skilled in the art to the present application within the spirit and protection scope of the present application also fall within the protection scope of the present application.​

Claims

1. A towing pool wave-breaking system with rapid energy dissipation, characterized in that: include: a slide bar, horizontally mounted on a side wall of the pool and movable horizontally along the side wall; One or more wave-breaking units, each of which includes a wave-breaking mechanism and at least two rotating brackets, one end of the rotating bracket being connected to the side wall and rotatable relative to the side wall, and the other end being connected to the wave-breaking mechanism and rotatable relative to the wave-breaking mechanism, the plane in which the rotating bracket rotates being the same plane as or parallel to the plane in which the slide bar is located, each of which further includes a traction mechanism, the traction mechanism including a traction rope, one end of the traction rope being connected to the slide bar, and the other end being connected to the wave-breaking mechanism; a power device capable of driving the slide bar to move horizontally along the side wall; The control device includes a servo drive motor and an encoder for recording the number of revolutions of the servo drive motor. The control device is communicatively connected to the servo drive motor and the encoder respectively. The control device calculates the distance that the wave-breaking mechanism is lifted or lowered according to the number of revolutions sent by the encoder, compares the distance with the distance set by the control device, and adjusts the power output of the servo drive motor in real time until the calculated distance is the same as the set distance.

2. The wave-breaking system according to claim 1, characterized in that: The power device also includes a reducer for decelerating the servo motor, a nut driven to rotate by the reducer, a screw threadedly engaged with the nut, and a screw coupling connected to the screw. A sliding rod coupling is provided at one end of the sliding rod, and the screw coupling and the sliding rod coupling are connected by a universal joint.

3. The wave-breaking system according to claim 2, characterized in that: The power device further includes an oil storage pipe covered outside the screw for receiving lubricating oil dripping from the screw, and the oil storage pipe includes a first pipe section located at one end of the reducer and a second pipe section located at the other end of the reducer.

4. The wave-breaking system according to claim 3, characterized in that: The first pipe section and the second pipe section each include a fixed portion and a rotating portion, one side of the rotating portion is hinged to one side of the fixed portion, and the other side of the rotating portion and the other side of the fixed portion are combined together in a covered state and separated in an open state.

5. The wave-breaking system according to claim 1 or 2, characterized in that: The traction mechanism also includes a traction rope transmission seat, which includes a mounting shaft arranged horizontally and perpendicular to the slide rod and a rotating wheel mounted on the mounting shaft through a bearing. The mounting shaft is fixedly connected to the side wall of the pool through a fixing member. The outer circumference of the rotating wheel is provided with an annular traction groove along the circumferential direction for accommodating the traction rope. The rotating wheel supports the part between the two ends of the traction rope to tension the traction rope.

6. The wave-breaking system according to claim 5, characterized in that: The portion of the traction rope from one end connected with the slide bar to the traction rope transmission seat is parallel to the slide bar.

7. The wave-breaking system according to claim 6, characterized in that: The traction mechanism also includes a tube clamping assembly, which includes a first tube clamping member and a second tube clamping member, the first tube clamping member including a semi-circular first arc-shaped portion and two first plate-shaped portions respectively located at both ends of the first arc-shaped portion, the second tube clamping member including a semi-circular second arc-shaped portion and two second plate-shaped portions respectively located at both ends of the second arc-shaped portion, the first arc-shaped portion of the first tube clamping member and the second arc-shaped portion of the second tube clamping member both cooperate with the outer wall of the sliding rod, the tube clamping assembly also includes a first bolt and a second bolt, the first bolt passes through the first plate-shaped portion located at one end of the first arc-shaped portion and the second plate-shaped portion opposite thereto, the second bolt passes through the first plate-shaped portion located at the other end of the second arc-shaped portion and the second plate-shaped portion opposite thereto, the outer wall of the first tube clamping member or the outer wall of the second tube clamping member is provided with a raised connecting portion, and the raised connecting portion is provided with a hole for connecting to the traction rope.

8. The wave-breaking system according to claim 7, characterized in that: The position where the other end of the traction rope is connected to the wave-breaking mechanism is located between the two rotating brackets.

9. The wave-breaking system according to claim 1 or 2, characterized in that: The wave-breaking mechanism includes a frame-shaped base and a wave-breaking grille connected to the base. The wave-breaking grille includes a plurality of bars arranged parallel to each other. The length direction of the bars is parallel to the length direction of the side wall of the pool, and there are gaps between adjacent bars.

10. The wave-breaking system according to claim 9, characterized in that: The bars are perpendicular to the base, an angle of 5° to 10° is formed between the base and a horizontal plane, and a side of the base away from the side wall is lower than a side thereof close to the side wall.

11. The wave-breaking system according to claim 9, characterized in that: The surfaces of the grating bars and the surface of the base are evenly coated with a protective film for corrosion prevention.

12. A wave elimination method, characterized in that: The wave absorbing system according to any one of claims 1 to 11 is used to absorb waves. During the absorption of waves, 60% to 70% of the wave absorbing mechanism of the wave absorbing system is located on the water surface.

Images