An energy dissipation floating breakwater structure with resonance cavity and moored with series buoys

Abstract

The present invention relates to the field of marine engineering technology, and in particular to an energy dissipation floating breakwater structure with a resonance cavity moored with serial buoys, comprising a floating breakwater body, which comprises a movable airtight chamber, a floating breakwater wave-facing side and a floating breakwater back-wave side, the airtight chamber is arranged between the floating breakwater wave-facing side and the floating breakwater back-wave side, and the bottom unclosed gap between the airtight chamber and the floating breakwater wave-facing side constitutes a first resonance chamber, and the bottom unclosed gap between the airtight chamber and the floating breakwater back-wave side constitutes a second resonance chamber; and a mobile control device is stored in the airtight chamber, and the mobile control device controls the airtight chamber to move toward the floating breakwater wave-facing side or the floating breakwater back-wave side based on a detected wave period, so as to adjust the widths of the first resonance chamber and the second resonance chamber, so that the natural frequency of the energy dissipation floating breakwater structure is the same as the detected wave frequency, thereby achieving a better wave dissipation effect.

Description

Technical Field

[0001] The invention relates to the technical field of marine engineering, and in particular to an energy dissipation floating breakwater structure with a resonance cavity and moored with serial buoys. Background Art

[0002] As a defensive offshore structure to resist offshore waves, breakwaters play an important role in maintaining the stability of harbor waters and reducing the effects of waves on harbor buildings.

[0003] Traditional bottom-supported breakwaters can provide a relatively good calm sea surface condition for the port, but they have high requirements for the seabed foundation conditions. Due to its bottom-supported design, it affects the free exchange of water inside and outside the breakwater, affects the offshore ecological environment, and the cost increases with the increase of water depth. In comparison, traditional pontoon-type floating breakwaters do not have high requirements for seabed geological conditions and do not affect the exchange of water inside and outside the sheltered area. However, when facing medium and long period waves, the wave absorption performance of floating breakwaters deteriorates. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an energy dissipation floating breakwater structure with a resonance cavity moored by serial buoys, which solves the technical problem of insufficient wave dissipation effect on medium and long period waves in the prior art.

[0006] (II) Technical solution

[0007] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0008] In a first aspect, an embodiment of the present application provides an energy dissipation floating breakwater structure with a resonance cavity moored with serial buoys, comprising a buoy, a floating breakwater and a seabed anchor point, wherein the floating breakwater is connected to the buoy by a mooring cable, and the buoy is connected to the seabed anchor point by a mooring cable;

[0009] The floating breakwater comprises a floating breakwater body, the floating breakwater body comprises a movable airtight chamber, a floating breakwater wave-facing side and a floating breakwater wave-repelling side, the airtight chamber is arranged between the floating breakwater wave-facing side and the floating breakwater wave-repelling side, and a bottom unclosed gap between the airtight chamber and the floating breakwater wave-facing side constitutes a first resonance chamber, and a bottom unclosed gap between the airtight chamber and the floating breakwater wave-repelling side constitutes a second resonance chamber;

[0010] In addition, a mobile control device is stored in the airtight chamber, and the mobile control device is used to control the airtight chamber to move toward the wave-facing side or the wave-retaining side of the floating breakwater based on the detected wave period, so as to adjust the width of the first resonance chamber and the second resonance chamber.

[0011] In a possible embodiment, an open cavity and a first buoyancy cavity arranged directly below the open cavity are provided inside the wave-facing side of the floating breakwater and inside the wave-retaining side of the floating breakwater, and two pressure relief holes communicating with the open cavity and an open channel arranged above the two pressure relief holes and communicating with the open cavity are provided on the outer side of the wave-facing side of the floating breakwater and the outer side of the wave-retaining side of the floating breakwater.

[0012] In a possible embodiment, a horizontal wing plate with holes is provided between the two pressure relief holes.

[0013] In a possible embodiment, a second buoyancy chamber is further provided inside both the wave-facing side and the wave-repelling side of the floating breakwater, and the second buoyancy chamber is provided on one side of the open cavity and the first buoyancy chamber close to the airtight chamber.

[0014] In a possible embodiment, the floating breakwater body includes a top surface of energy dissipation vents arranged above the airtight chamber, the wave-facing side of the floating breakwater, and the wave-receiving side of the floating breakwater.

[0015] In a possible embodiment, the outer side of the floating breakwater facing the waves and the outer side of the floating breakwater facing the waves both include a curved surface segment connected to the top surface, an inclined surface segment, and a vertical surface segment arranged between the curved surface segment and the inclined surface segment, and an open channel is arranged on the curved surface segment, and two pressure relief holes are arranged on the vertical surface segment.

[0016] In a possible embodiment, the floating breakwater body further includes an air-collecting power generation device arranged on the top surface. The air-collecting power generation device is used for dissipating energy. When the natural frequency of the floating breakwater structure is equal to the detected wave frequency, the external wave energy is absorbed during the resonance between the wave and the structure, and the reciprocating motion of the fluid in the chamber is increased, so that the volume of the air in the fluid becomes smaller after compression, and the pressure increases. The water body in the first resonance chamber and the second resonance chamber vibrates to squeeze the air in the chamber, converting part of the wave energy into the kinetic energy of the air. A generator for wave power generation through the air-collecting power generation device is further arranged in the airtight chamber.

[0017] In a possible embodiment, the air collection power generation device includes an air collection device and an air turbine.

[0018] In a second aspect, an embodiment of the present application provides a wave-breaking method, which is applied to a mobile control device in an energy-dissipating floating breakwater structure with a resonance cavity moored by series buoys of any one of the first aspects; the wave-breaking method comprises: obtaining a wave period collected by a buoy wave sensor; calculating a wave frequency according to the wave period; determining a first gap width of a first resonance chamber and a second gap width of a second resonance chamber based on the wave frequency, and controlling the airtight chamber to move toward the wave-facing side or the wave-receiving side of the floating breakwater based on the first gap width and the second gap width, so as to adjust the gap width of the first resonance chamber to the first gap width, and at the same time adjust the gap width of the second resonance chamber to the second gap width, so as to make the natural frequency of the energy-dissipating floating breakwater structure the same as the wave frequency through the above-mentioned gap width adjustment.

[0019] (III) Beneficial effects

[0020] The beneficial effects of the present invention are:

[0021] The present application provides an energy dissipation floating breakwater structure with a resonance chamber moored with serial buoys. The energy dissipation floating breakwater structure with a resonance chamber moored with serial buoys can increase horizontal stiffness and improve positioning capability by flexibly adjusting the connection method between buoys, while reducing horizontal loads on the structure.

[0022] Furthermore, the present application can also adjust the width of the resonance chambers (or resonance gaps) on the left and right sides by adjusting the middle airtight chamber to the left and right, so as to achieve the best wave-breaking effect corresponding to the wave period.

[0023] In order to make the above-mentioned objectives, features and advantages to be achieved by the embodiments of the present application more obvious and understandable, the following specifically cites preferred embodiments and describes them in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of an energy dissipation floating breakwater structure with a resonance cavity and moored with serial buoys proposed in an embodiment of the present application is shown;

[0026] Figure 2 A schematic diagram of a floating breakwater proposed in an embodiment of the present application is shown;

[0027] Figure 3A cross-sectional schematic diagram of a floating breakwater proposed in an embodiment of the present application is shown;

[0028] Figure 4 A control schematic diagram of a mobile control device provided in an embodiment of the present application is shown;

[0029] Figure 5 A flow chart of a wave elimination method provided in an embodiment of the present application is shown;

[0030] Figure 6 A schematic diagram of theoretical analysis of a floating breakwater provided in an embodiment of the present application is shown;

[0031] Figure 7 A schematic diagram of the scale setting of a physical model of a floating breakwater provided in an embodiment of the present application is shown.

[0032] [Description of Reference Numerals]

[0033] 1: first resonance chamber;

[0034] 2: The wave-facing side of the floating breakwater;

[0035] 3: The wave-dorsal side of the floating breakwater;

[0036] 4: Airtight chamber;

[0037] 5: Wing plate;

[0038] 6: Wave incident gap;

[0039] 7: Slider;

[0040] 8: Energy dissipation pores;

[0041] 9: Gas-collecting power generation device;

[0042] 10: Opening channel;

[0043] 11: Pressure relief hole;

[0044] 12: second buoyancy chamber;

[0045] 13: Opening chamber;

[0046] 14: first buoyancy chamber;

[0047] 15: The second resonance chamber. DETAILED DESCRIPTION

[0048] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0049] In order to solve the problem of poor wave dissipation performance of floating breakwaters in the prior art, the present application provides a series of buoy-moored energy dissipation floating breakwater structure with resonance chamber, which can achieve the reduction of long-period waves in deep sea areas, and at the same time, horizontal wing plates with openings are added on both sides, which can increase the inertia moment of the device while better reducing waves of different periods. In addition, the floating breakwater is also designed with a narrow slit at the entrance of the resonance chamber with a certain curvature, and a system that can control the width of the resonance chamber according to the wave period is designed to achieve optimal wave dissipation performance.

[0050] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0051] First embodiment

[0052] See also Figure 1 , Figure 1 FIG. 1 is a schematic diagram of an energy dissipation floating breakwater structure with a resonance cavity and moored with serial buoys proposed in an embodiment of the present application. Figure 1 As shown, the energy dissipation floating breakwater structure with resonance cavity moored by serial buoys comprises a buoy, a floating breakwater and a seabed anchor point, and the floating breakwater is connected to the buoy through a mooring cable, and the buoy is connected to the seabed anchor point through the mooring cable.

[0053] In addition, the present application can also increase horizontal rigidity and improve positioning capability by flexibly adjusting the connection mode between buoys, while reducing the horizontal load on the structure. Also, the number and layout of buoys can be adjusted according to specific needs, which improves the flexibility of the system and makes it more adaptable to different marine environments and engineering requirements. Thus, the energy dissipation floating breakwater structure with resonance cavity moored with serial buoys makes the present invention have greater advantages in stability, adaptability and flexibility than traditional mooring systems.

[0054] In order to understand the structure of floating breakwater, Figure 2 and Figure 3 Provide a description of floating breakwaters.

[0055] See also Figure 2 and Figure 3The floating breakwater includes a floating breakwater body, which includes a movable airtight chamber 4, a floating breakwater wave-facing side 2 and a floating breakwater wave-receiving side 3, the airtight chamber 4 is arranged between the floating breakwater wave-facing side 2 and the floating breakwater wave-receiving side 3, and the unclosed gap at the bottom between the airtight chamber 4 and the floating breakwater wave-facing side 2 constitutes a first resonance chamber 1, that is, a wave incident gap 6 is opened at the bottom of the first resonance chamber 1, and the unclosed gap at the bottom between the airtight chamber 4 and the floating breakwater wave-receiving side 3 constitutes a second resonance chamber 15, that is, a wave incident gap 6 is also opened at the bottom of the second resonance chamber 15.

[0056] Furthermore, the airtight chamber 4 is an airtight space composed of a top surface and a slider 7 that can slide left and right on the top surface, and a movement control device is stored in the slider 7, and the movement control device is used to control the airtight chamber 4 to move toward the wave-facing side 2 of the floating breakwater or the wave-receiving side 3 of the floating breakwater based on the detected wave cycle, so as to adjust the width of the first resonance chamber 1 and the second resonance chamber 15, so as to achieve the best wave-breaking effect. At the same time, since the movement amplitude will not be large, the impact on the equipment stored in the airtight chamber 4 will be small.

[0057] It should be understood that the specific device included in the mobile control device may be an existing device, and the embodiments of the present application are not limited thereto.

[0058] For example, Figure 4As shown, the mobile control device may include a controller, a driver and a gate motor. Also, a buoy wave sensor may be placed at an appropriate distance in front of the floating breakwater to monitor and count the wave period. Also, the buoy wave sensor may transmit the wave period statistical results to the controller, and a Raspberry Pi 4B microprocessor is used as the controller, and an expansion module is used for data acquisition. The controller is mainly responsible for receiving sensor data, simulating effect calculations, controlling the driver and providing feedback, performing numerical prediction and fitting according to the statistical results of the wave period, and calculating the appropriate resonance chamber width size for the current period wave, and then transmitting the calculated results to the driver, which converts the fitting results into electrical signals and transmits the electrical signals to the "gate" motor to control the "gate" motor to achieve the change of the resonance chamber width size. The "gate" motor is set to different width gears according to the local wave conditions to control the size of the resonance chamber width, so that the wave period within a certain range corresponds to the same width gear, ensuring that the resonance chamber width has a better wave-breaking effect on the waves within a certain period range, and also reducing the loss of the device. By adjusting the width of the resonance chamber, the natural frequency of the energy dissipation floating breakwater structure (or floating structure system) is made the same as the detected wave frequency, and the waves resonate strongly in the chamber to achieve the purpose of energy dissipation. A buoy wave sensor is also placed at an appropriate distance behind the floating breakwater to count the wave height after passing the breakwater, which is used to detect the wave dissipation effect and feedback adjustment. The rear sensor periodically transmits the wave height data to the mobile control device, which compares the design wave height value and the actual wave height value, controls and adjusts the situation with a large difference, and transmits the control signal to the driver. The driver controls and adjusts the width gear of the "door" motor to improve the wave dissipation effect and complete the feedback control. The host computer can receive the numerical results and various indicators of the wave from the mobile control device, and monitor the width of the resonance chamber and the current state of the wave.

[0059] Furthermore, if Figure 2 and Figure 3 As shown, the interior of the wave-facing side 2 of the floating breakwater and the interior of the wave-receiving side 3 of the floating breakwater are both provided with an open chamber 13 and a first buoyancy chamber 14 arranged directly below the open chamber 13, and the outer side of the wave-facing side 2 of the floating breakwater and the outer side of the wave-receiving side 3 of the floating breakwater are both provided with two pressure relief holes 11 communicating with the open chamber 13 and an open channel 10 arranged above the two pressure relief holes 11 and communicating with the open chamber 13, thereby effectively reducing the mechanical energy of the water body.

[0060] In addition, the outer side of the wave-facing side 2 of the floating breakwater and the outer side of the wave-receiving side 3 of the floating breakwater both include a curved surface segment connected to the top surface, an inclined surface segment, and a vertical surface segment arranged between the curved surface segment and the inclined surface segment, and an opening channel 10 is arranged on the curved surface segment, and two pressure relief holes 11 are arranged on the vertical surface segment.

[0061] Furthermore, if Figure 2 and Figure 3 As shown, a horizontal wing plate 5 with holes is arranged between the two pressure relief holes 11.

[0062] Specifically, horizontal wing plates 5 arranged between two pressure relief holes 11 are installed on the vertical surface sections of the wave-facing side 2 of the floating breakwater and the vertical surface sections of the wave-repelling side 3 of the floating breakwater. Therefore, the presence of the horizontal wing plates 5 not only enhances the wave-breaking effect of the floating breakwater, but also increases the moment of inertia of the floating breakwater, reduces the motion response of the floating breakwater and the stress on the anchor chain, and improves its safety and reliability.

[0063] Furthermore, if Figure 2 and Figure 3 As shown, the interior of the floating breakwater's wave-facing side 2 and the floating breakwater's wave-receiving side 3 are further provided with a second buoyancy chamber 12, and the second buoyancy chamber 12 is arranged on one side of the opening chamber 13 and the first buoyancy chamber 14 close to the airtight chamber 4.

[0064] It should be noted here that the airtight chamber 4, the first buoyancy chamber 14 and the second buoyancy chamber 12 are filled with waterproof building materials, so as to provide necessary buoyancy for the floating breakwater unit as a whole.

[0065] It should be understood that the specific material of the waterproof building material can be set according to actual needs, and the embodiments of the present application are not limited to this.

[0066] For example, the waterproof building material can be polyurethane foam, which is a lightweight, closed-cell foam material with excellent buoyancy and waterproofness, and can be used to fill the chamber of the floating breakwater to provide the necessary buoyancy; for another example, the waterproof building material can be closed-cell PVC foam, or cross-linked polyethylene foam (XLPE), ethylene-vinyl acetate copolymer (EVA) foam, ethylene-vinyl acetate copolymer (EVA) foam, etc. These similar foam materials can all play a role in waterproofing and providing buoyancy for the floating breakwater.

[0067] Furthermore, if Figure 2 and Figure 3 As shown, the floating breakwater body includes a top surface of energy dissipation air holes 8 arranged above an airtight chamber 4, a wave-facing side 2 of the floating breakwater, and a wave-receiving side 3 of the floating breakwater.

[0068] In addition, the floating breakwater body further includes an air-collecting power generation device 9 with an OWC opening arranged on the top surface. The air-collecting power generation device 9 is used for dissipating energy. When the natural frequency of the floating breakwater structure is equal to the wave frequency, the external wave energy is absorbed during the resonance between the wave and the structure, and the reciprocating motion of the fluid in the chamber is increased, so that the volume of the air in the fluid becomes smaller after compression, and the pressure increases. The water body in the first resonance chamber and the second resonance chamber 15 vibrates to squeeze the air in the chamber, and part of the wave energy is converted into kinetic energy of the air. Therefore, the air-collecting power generation device 9 can effectively utilize this part of the air kinetic energy to generate electricity. Compared with the traditional wave energy power generation device, it fully utilizes the wave energy to convert into electrical energy, and the power generation efficiency is greatly improved.

[0069] Furthermore, a generator for generating wave power through an air-collecting power generation device 9 is further provided in the airtight chamber 4 .

[0070] It should be understood that the specific device of the gas collection power generation device 9 can be configured according to actual needs, and the embodiments of the present application are not limited thereto.

[0071] For example, the air-collecting power generation device 9 may include an air-collecting device and an air turbine, so that the wave energy power generation function can be realized while absorbing waves.

[0072] It should be noted here that the parameters such as the size of each device included in the floating breakwater can be set according to actual needs, and the embodiments of the present application are not limited to this.

[0073] Therefore, with the help of the above-mentioned technical solution, the present application sets pressure relief holes on the wave-facing side and the wave-retaining side of the floating breakwater. After the water passes through the pressure relief holes, it is converted into turbulence, and then the water entering the open hole chamber is discharged from the breakwater through the opening channel above, thereby effectively reducing the mechanical energy of the water.

[0074] In addition, the present application introduces waves into the resonance chamber from the wave incident gap through design, and can change the right-angle bottom angle type of the bottom narrow slit inlet and outlet of the resonance chamber into a certain arc round bottom angle structure type, and is equipped with a buoy wave sensor to count the wave period, and automatically adjust the width of the resonance chamber according to the wave period, which is conducive to the fluid entering and exiting the chamber and resonating, so that the wave energy is gathered inside the resonance chamber. In addition, the water body entering the resonance chamber exhibits a large-scale lifting and lowering movement due to strong resonance, which effectively reduces the mechanical energy of the water body, and at the same time causes the air above the water body to be strongly squeezed, realizing the conversion of the kinetic energy of the water body into the internal energy of the gas.

[0075] In addition, the present application improves the stability of the structure by connecting the buoy anchor system in series. Also, the moment of inertia of the overall structure is increased by setting a horizontal wing plate with openings, reducing the motion response of the breakwater and the stress of the anchor chain, and installing a gas-collecting power generation device to realize the power generation function of the floating breakwater.

[0076] In addition, the present application optimizes the structure of the floating breakwater with a resonance chamber, thereby greatly improving its structural stability and also having a power generation function, and has important engineering application value.

[0077] It should be understood that the above-mentioned floating breakwater is only exemplary, and those skilled in the art may make various modifications according to actual needs, and the modified solutions also fall within the protection scope of this application.

[0078] Second embodiment

[0079] See also Figure 5 , Figure 5 A flow chart of a wave-breaking method provided in an embodiment of the present application is shown. Specifically, the wave-breaking method is applied to a mobile control device in an energy-dissipating floating breakwater structure with a resonance cavity moored with tandem buoys in the first embodiment; the wave-breaking method comprises:

[0080] Step S510, obtaining the wave period collected by the buoy wave sensor.

[0081] Step S520, calculating the wave frequency according to the wave period.

[0082] Step S530, based on the wave frequency, determine the first gap width of the first resonance chamber and the second gap width of the second resonance chamber, and based on the first gap width and the second gap width, control the airtight chamber to move toward the wave-facing side or the wave-receiving side of the floating breakwater, so as to adjust the gap width of the first resonance chamber to the first gap width, and at the same time adjust the gap width of the second resonance chamber to the second gap width, so that the natural frequency of the energy dissipation floating breakwater structure is the same as the wave frequency through the adjustment of the above gap widths.

[0083] It should be understood that the calculation formula for the wave number and the calculation formula for the wave frequency can be set according to actual needs, and the embodiments of the present application are not limited to this.

[0084] For example, the calculation formula for the wave number can be an existing calculation formula;

[0085] For another example, the formula for calculating wave frequency is: ;

[0086] In the formula, Indicates the wave frequency; g represents the acceleration due to gravity; k represents the wave number; tanh represents the hyperbolic tangent function; h Indicates water depth.

[0087] It should also be understood that, based on the wave frequency, the calculation formula for determining the first gap width of the first resonance chamber and the second gap width of the second resonance chamber can be set according to actual needs, and the embodiments of the present application are not limited thereto.

[0088] Optionally, when the wave frequency Equal to the liquid frequency in the first resonance chamber And the wave frequency Equal to the liquid frequency in the second resonant chamber When the natural frequency of the energy dissipation floating breakwater structure is the same as the wave frequency, the best wave dissipation effect can be achieved when the following formula is satisfied: ; ;

[0089] In the formula, l 1 represents the gap width of the first resonance chamber; l 2 represents the gap width of the second resonance chamber.

[0090] To facilitate understanding of the embodiments of the present application, the process of determining the first gap width of the first resonant chamber and the second gap width of the second resonant chamber is described below.

[0091] Specifically, since the amount of water entering the resonance chamber at different widths for waves of different periods is significantly different, this will greatly affect the wave absorption performance of the resonance chamber. The liquid frequency in the first resonance chamber can be calculated by the following formula: and the liquid frequency in the second resonance chamber : ; ; ; ; ; ; ;

[0092] Combination Figure 6 Explain the above formula: Figure 6 The horizontal black straight line in the upper middle part represents the water level, the black straight line at the bottom represents the sea bottom, and the width of the water surface is taken as unit width;

[0093] as well as,( I ) area represents the incident wave area; ( II ) area represents the lower area of ​​the first floating body, and the lower area of ​​the first floating body represents the area below the three floating body parts, namely, the wing plate installed on the wave-facing side of the floating breakwater, the wave-facing side of the floating breakwater and the first resonance chamber; ( III ) area represents the liquid area inside the first resonance chamber; ( IV) area represents the lower area of ​​the second floating body, and the lower area of ​​the second floating body represents the area below the two floating body parts of the airtight chamber and the second resonance chamber; ( V ) area represents the liquid area inside the second resonance chamber;

[0094] as well as, represents the first intermediate quantity; represents the second intermediate quantity; represents the third intermediate quantity; express( I ) The flow area of ​​the region; express( II ) The flow area of ​​the region; express( III ) The flow area of ​​the region; express( IV ) The flow area of ​​the region; A V express( V ) The flow area of ​​the region;

[0095] as well as, express( I ) area, that is, ( I ) The length of the double-end lines in the area; express( II ) area width, that is ( II ) The length of the double-end lines in the area; express( III ) area width, that is ( III ) The length of the double-end lines in the area; express( IV ) area width, that is ( IV ) The length of the double-end lines in the area; express( V ) area width, that is ( V ) area.

[0096] It should be noted here that due to the total width of the first resonant chamber and the second resonant chamber B is certain, so the width of the first resonance chamber can be Set to unknown quantity x , then the width of the second resonant chamber is Can be set to B - x , and then the unknown quantity can be used x express , and , which can then be expressed by the unknown quantity l 1 andl 2, and then the unknown quantity can be used x represents and , while the wave frequency is known, then the unknown quantity can be x By solving the problem, the first gap width of the first resonant chamber and the second gap width of the second resonant chamber can be obtained.

[0097] In order to facilitate understanding of the embodiments of the present application, a description is given below using specific embodiments.

[0098] Specifically, the solution is calculated based on the experimental model, and the actual can be converted according to the scale of the model according to the Froude similarity criterion. For example, the scale of the actual and the model is 40:1, that is, the actual length is 40m and the model is 1m long. In addition, the time scaling ratio is proportional to the square root of the scale ratio. Specifically, if the scale ratio of the actual and the model is 40:1, then the time scaling ratio is :1, for example, when the model T 模 = 1.4s, actual wave period T = 8.85s.

[0099] as well as, Figure 7 The model shown has a draft of 0.15 m. The figure only marks the quantities required for calculation, which can be actually converted based on the scale of the actual and model.

[0100] And, in the above formula k is the wave number, , and the wavelength L According to the diffusion equation Calculate the water depth h , wave period T It can be measured according to actual conditions, as follows: h =0.5m, wave height H =0.05m calculated and , please see Table 1 below for details.

[0101] Table 1 Wave period T 、( III ) The width of the area and( V ) The width of the area Correspondence table

[0102] It should be understood that the above-mentioned wave elimination method is only exemplary, and those skilled in the art may make various modifications based on the above-mentioned method, and the modified or deformed contents are also within the protection scope of this application.

[0103] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0104] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0105] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0106] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0107] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An energy dissipation floating breakwater structure with a resonance cavity and moored with tandem buoys, characterized in that: It comprises a buoy, a floating breakwater and a seabed anchor point, wherein the floating breakwater is connected to the buoy through a mooring cable, and the buoy is connected to the seabed anchor point through the mooring cable; The floating breakwater comprises a floating breakwater body, the floating breakwater body comprises a movable airtight chamber, a floating breakwater wave-facing side and a floating breakwater wave-receiving side, the airtight chamber is arranged between the floating breakwater wave-facing side and the floating breakwater wave-receiving side, and the bottom unclosed gap between the airtight chamber and the floating breakwater wave-facing side constitutes a first resonance chamber, and the bottom unclosed gap between the airtight chamber and the floating breakwater wave-receiving side constitutes a second resonance chamber; wherein the airtight chamber is an airtight space formed by a top surface and a slider capable of sliding left and right on the top surface; and a movement control device is stored in the airtight chamber, and the movement control device is used to control the airtight chamber to move toward the wave-facing side of the floating breakwater or the wave-receiving side of the floating breakwater based on the detected wave period, so as to adjust the widths of the first resonance chamber and the second resonance chamber; The interior of the floating breakwater facing the wave side and the interior of the floating breakwater facing the wave side are both provided with an open hole chamber and a first buoyancy chamber arranged directly below the open hole chamber, and the outer side of the floating breakwater facing the wave side and the outer side of the floating breakwater facing the wave side are both provided with two pressure relief holes communicating with the open hole chamber and an open channel arranged above the two pressure relief holes and communicating with the open hole chamber; The floating breakwater body comprises a top surface of energy dissipation air holes arranged above the airtight chamber, the wave-facing side of the floating breakwater and the wave-receiving side of the floating breakwater; The floating breakwater body further includes an air-collecting power generation device arranged on the top surface. The air-collecting power generation device is used to absorb external wave energy during the resonance between the wave and the structure when the natural frequency of the energy dissipation floating breakwater structure is equal to the detected wave frequency, thereby increasing the reciprocating motion of the fluid in the chamber, so that the volume of the air in the fluid becomes smaller after compression and the pressure increases. The water body in the first resonance chamber and the second resonance chamber vibrates to squeeze the air in the chamber, converting part of the wave energy into the kinetic energy of the air. A generator for wave power generation through the air-collecting power generation device is further arranged in the airtight chamber.

2. The energy dissipation floating breakwater structure according to claim 1, characterized in that: A horizontal wing plate with holes is arranged between the two pressure relief holes.

3. The energy dissipation floating breakwater structure according to claim 1, characterized in that: A second buoyancy chamber is further provided inside each of the wave-facing side and the wave-retaining side of the floating breakwater, and the second buoyancy chamber is provided on one side of the open hole chamber and the first buoyancy chamber close to the airtight chamber.

4. The energy dissipation floating breakwater structure according to claim 1, characterized in that: The outer side of the floating breakwater facing the waves and the outer side of the floating breakwater facing away from the waves both include a curved surface segment connected to the top surface, an inclined surface segment, and a vertical surface segment arranged between the curved surface segment and the inclined surface segment, and the curved surface segment is provided with the opening channel, and the vertical surface segment is provided with the two pressure relief holes.

5. The energy dissipation floating breakwater structure according to claim 1, characterized in that: The gas-collecting power generation device comprises a gas-collecting device and an air turbine.

6. A wave elimination method, characterized in that: The wave-breaking method is applied to the mobile control device in the energy-dissipating floating breakwater structure with a resonance cavity moored by tandem buoys as claimed in any one of claims 1 to 5; the wave-breaking method comprises: Get the wave period collected by the buoy wave sensor; Calculating the wave frequency based on the wave period; Based on the wave frequency, a first gap width of the first resonance chamber and a second gap width of the second resonance chamber are determined, and based on the first gap width and the second gap width, the airtight chamber is controlled to move toward the wave-facing side or the wave-receiving side of the floating breakwater, so as to adjust the gap width of the first resonance chamber to the first gap width, and at the same time adjust the gap width of the second resonance chamber to the second gap width, so that the natural frequency of the energy dissipation floating breakwater structure is the same as the wave frequency.

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