Wind-fish mechanism combining floating fan and oyster discharge field and simulation method

Abstract

The invention discloses a wind-fishing mechanism combining floating type fans and an oyster discharge field and a simulation method, and belongs to the technical field of wind power engineering, the wind-fishing mechanism comprises four floating type fans, the floating type fans are distributed in a rectangular shape, anchoring lines are installed at the bottom ends of the floating type fans, and shared mooring lines are arranged between the adjacent floating type fans. According to the method, the four sets of floating type fans are distributed in a rectangular mode, the floating type fans are preliminarily fixed through one set of anchoring lines respectively, then the adjacent floating type fans are reinforced through the shared mooring lines, a rectangle is defined by the adjacent floating type fans, and then the oyster ranks are arranged between the interiors of the floating type fans; and finally, the connecting mechanism is used for connecting the oyster raft with the shared mooring line, so that when the device is used, the material cost, the installation cost and the like of a floating wind power plant mooring / anchoring system are remarkably reduced, and on the other hand, the middle area is used for developing the oyster raft breeding pasture, and the characteristics of intensive sea use and three-dimensional sea use are achieved.

Description

Technical Field

[0001] The present invention relates to a wind and fishery mechanism, in particular to a wind and fishery mechanism combining a floating wind turbine and an oyster farm. The present invention also relates to a simulation method, in particular to a simulation method combining a floating wind turbine and an oyster farm, belonging to the technical field of wind power engineering. Background Art

[0002] The development of deep - sea wind energy and fishery resources not only increases the technical difficulty, but also single - form marine resource development equipment has disadvantages such as high cost, poor economy, low sea area utilization rate, and great commercialization difficulty. In this context, developing a diversified integration development model that comprehensively utilizes marine energy and fishery resources has the advantages of intensive and three - dimensional use of the sea area, and is also an effective way to promote the large - scale commercial development of far - reaching offshore wind power and modern marine pastures. The integrated development of offshore wind power and marine pastures can share offshore space resources, collaborate in design, construction, and operation and maintenance, reduce the design, construction, and operation and maintenance costs of their separate development, and improve the overall income of comprehensive development. Therefore, the integrated development of offshore wind power and marine pastures is of great significance for promoting the joint development of offshore wind power and marine pastures towards intelligence and far - reaching deep - sea development.

[0003] Therefore, a wind and fishery mechanism and a simulation method combining a floating wind turbine and an oyster farm are designed to optimize the above problems. Summary of the Invention

[0004] The main object of the present invention is to provide a wind-fishing mechanism and a simulation method combining a floating wind turbine and an oyster farm. By arranging four groups of floating wind turbines in a rectangular distribution, and respectively using a set of anchoring lines to preliminarily fix the floating wind turbines, then using shared mooring lines to reinforce between adjacent floating wind turbines and enclosing a rectangle, then setting an oyster farm between the floating wind turbines, and finally using a connecting mechanism to connect the oyster farm with the shared mooring line, so that when the device is in use, the materials and installation costs of the mooring / anchoring system of the floating wind farm are significantly reduced. On the other hand, by using the middle area to develop an oyster farm, it has the characteristics of intensive and three-dimensional use of the sea area. This wind-fishing integration mode based on the shared mooring system realizes the sharing of marine space resources, collaborative design, construction and operation and maintenance, can reduce the design, construction and operation and maintenance costs of the independent development of the floating wind farm, improve the overall income of the comprehensive development. The suspension assembly composed of the arc-shaped hook at the end of the oyster raft mooring line, the connecting column, the hidden groove, the arc-shaped baffle and the positioning part can conveniently clamp and position the oyster farm during use. At the same time, the retracting and releasing assembly composed of the upper shell, the winding rod, the through hole, the worm gear and the worm, and the adjusting groove on the shared mooring line can control the use length of the oyster raft mooring line according to the size of the oyster farm during use, ensure the stable installation of the oyster farm, and have higher practicability. In addition, by arranging a connecting assembly composed of a limiting ring and a connecting rope between adjacent oyster raft mooring lines, it can facilitate the use of the suspension assembly during the installation of the oyster farm.

[0005] The object of the present invention can be achieved by adopting the following technical solutions: A wind-fishing mechanism combining a floating wind turbine and an oyster farm, comprising floating wind turbines. There are four groups of floating wind turbines, and the floating wind turbines are arranged in a rectangular distribution. Anchor lines are installed at the bottom ends of the floating wind turbines. Shared mooring lines are provided between adjacent floating wind turbines. Multiple groups of shared mooring lines enclose a rectangle. Multiple groups of anchor lines are respectively located at the corners of the rectangle enclosed by the shared mooring lines and extend in the diagonal direction. An oyster farm is horizontally arranged between multiple groups of floating wind turbines. A connecting mechanism is provided between the side of the oyster farm and the shared mooring line.

[0006] Preferably: The floating wind turbine includes a Y-shaped floating barrel, a column, a tower barrel and a wind turbine. The Y-shaped floating barrel floats on the sea surface. Columns are vertically arranged at the ends and the middle position of the Y-shaped floating barrel. A tower barrel is vertically arranged on the column at the middle position of the top of the Y-shaped floating barrel. A wind turbine is installed at the top of the tower barrel. The anchor line is installed at one end of the Y-shaped floating barrel.

[0007] Preferably, the connection mechanism includes an oyster raft mooring line, a suspension assembly, a buoy, a retracting and releasing assembly, and a connection assembly. The oyster raft mooring line is located between the oyster raft field and the shared mooring line. One end of the oyster raft mooring line is provided with a suspension assembly, and the suspension assembly is installed on the oyster raft field. Buoys are provided on the oyster raft mooring lines. Retracting and releasing assemblies for retracting and releasing the oyster raft mooring lines are provided along the length direction of the shared mooring line. The ends of the oyster raft mooring lines away from the oyster raft field are all installed on the retracting and releasing assemblies. A connection assembly is provided between adjacent oyster raft mooring lines.

[0008] Preferably, the suspension assembly includes an arc-shaped hook, a connecting column, a hidden groove, an arc-shaped stop bar, and a positioning part. One end of the arc-shaped hook is fixed with a connecting column, and the oyster raft mooring line is fixed on the connecting column. A hidden groove is opened at the end of the arc-shaped hook away from the connecting column. An arc-shaped stop bar is slidably arranged inside the hidden groove, and a positioning part for fixing the arc-shaped stop bar is arranged inside the connecting column.

[0009] Preferably, the positioning part includes a sliding groove, a plug, a return spring, a slot, and a drag block. The sliding groove is opened inside the connecting column, and the end of the sliding groove communicates with the outside of the connecting column. A plug is slidably installed inside the sliding groove. A return spring is arranged between the plug and the inner end of the sliding groove. A slot for cooperating with the plug is opened at the end of the arc-shaped stop bar. A drag block is fixed to the side of the plug, and the drag block is slidably connected to the connecting column.

[0010] Preferably, the shape of the plug is a right trapezoid, and the hypotenuse of the plug faces the opening of the sliding groove and the connecting column.

[0011] Preferably, the retracting and releasing assembly includes a housing, a winding rod, a through hole, and a rotating part. The housing is fixed on the shared mooring line. A winding rod is rotatably installed between the two ends of the housing. Through holes are opened on the outer sides of the housing. The oyster raft mooring lines all enter the inside of the housing through the through holes and are fixed on the winding rod. A rotating part is arranged at the end of the winding rod.

[0012] Preferably, the retracting and releasing assembly includes a housing, a winding rod, a through hole, and a rotating part. The housing is fixed on the shared mooring line. A winding rod is rotatably installed between the two ends of the housing. Through holes are opened on the outer sides of the housing. The oyster raft mooring lines all enter the inside of the housing through the through holes and are fixed on the winding rod. A rotating part is arranged at the end of the winding rod.

[0013] Preferably, the connection assembly includes a limiting ring and a connecting rope. The limiting ring is sleeved on the oyster raft mooring line, and a connecting rope is provided between adjacent limiting rings.

[0014] The present invention also provides a simulation method for combining a floating wind turbine and an oyster raft field, including the following steps: Step 1: For a floating wind turbine, the blade element momentum theory is adopted for the wind turbine. Each blade is divided into radial sections. According to the blade geometry and local flow conditions, the lift, drag, axial force, tangential force, and torque of the blade element are calculated to determine the aerodynamic load of the wind turbine. Step 2: For a floating wind turbine, the floating foundation includes a large-sized structure, a Y-shaped buoy, columns, and a tower. The three-dimensional potential flow theory method is used to calculate the hydrodynamic performance. For the potential flow solution, the time-domain method is adopted. First, the radiation damping, added mass, and wave exciting force obtained from the frequency-domain analysis are Fourier-transformed to obtain the added mass, delay function, and wave exciting force in the time domain. Then, the motion equation of the floating body structure in the time domain is established. Step 3: For the small-scale structure of the oyster farm, the Morison formula method is used to calculate the hydrodynamic load, with emphasis on considering the added mass effect and viscous drag effect. Step 4: The concentrated mass method is used to dynamically calculate the structural dynamics of the anchor line, shared mooring line, and connection mechanism. The mooring line is divided into small segments, each small segment is represented by a mass point, and adjacent mass points are connected by springs. The external forces on the mooring line are regarded as acting on the mass points. Step 5: Based on Steps 1-5, a multi-body coupling dynamics analysis model of a wind-fishing mechanism combining a floating wind turbine and an oyster farm is constructed.

[0015] The beneficial effects of the present invention are as follows: The wind-fishing mechanism and simulation method combining a floating wind turbine and an oyster farm provided by the present invention, by arranging four groups of floating wind turbines in a rectangular distribution, and initially fixing the floating wind turbines respectively by using a set of anchor lines, then strengthening the adjacent floating wind turbines by using a shared mooring line and enclosing them into a rectangle, then setting an oyster farm between the floating wind turbines, and finally connecting the oyster farm with the shared mooring line by using a connection mechanism, significantly reduces the costs of materials and installation of the mooring / anchoring system of the floating wind farm during use. On the other hand, by developing an oyster farm in the middle area, it has the characteristics of intensive and three-dimensional use of sea areas. This wind-fishing integration mode based on the shared mooring system realizes the sharing of marine space resources, collaborative design, construction, and operation and maintenance, can reduce the design, construction, and operation and maintenance costs of the independent development of the floating wind farm, and improve the overall income of the comprehensive development. The suspension assembly composed of the arc-shaped hook at the end of the oyster raft mooring line, the connecting column, the hidden groove, the arc-shaped stop bar and the positioning part can facilitate the clamping and positioning of the oyster farm during use. At the same time, through the retracting and releasing assembly composed of the upper shell, the winding rod, the through port, the worm gear, the worm and the adjustment groove on the shared mooring line, during the use process, according to the size of the oyster farm, the use length of the oyster raft mooring line can be controlled to ensure the stable installation of the oyster farm and higher practicability. In addition, by setting a connecting assembly composed of a limiting ring and a connecting rope between adjacent oyster raft mooring lines, it is convenient to use the suspension assembly when installing the oyster farm. Brief Description of the Drawings

[0016] Figure 1 Fig. is the installation and use state diagram of a preferred embodiment in a combined wind and fishery mechanism and simulation method of a floating wind turbine and an oyster farm according to the present invention; Figure 2 Fig. is the structural diagram of a floating wind turbine in a preferred embodiment in a combined wind and fishery mechanism and simulation method of a floating wind turbine and an oyster farm according to the present invention; Figure 3 Fig. is the suspension assembly diagram of a preferred embodiment in a combined wind and fishery mechanism and simulation method of a floating wind turbine and an oyster farm according to the present invention; Figure 4 In a preferred embodiment of a combined wind and fishery mechanism and simulation method of a floating wind turbine and an oyster farm according to the present invention Figure 3 Enlarged view at B; Figure 5 Fig. is the retracting and releasing assembly diagram of a preferred embodiment in a combined wind and fishery mechanism and simulation method of a floating wind turbine and an oyster farm according to the present invention; Figure 6 In a preferred embodiment of a combined wind and fishery mechanism and simulation method of a floating wind turbine and an oyster farm according to the present invention Figure 1 Enlarged view at A; Figure 7 Fig. is the connecting assembly diagram of a preferred embodiment in a combined wind and fishery mechanism and simulation method of a floating wind turbine and an oyster farm according to the present invention; Figure 8 Fig. is the system diagram of a preferred embodiment in a combined wind and fishery mechanism and simulation method of a floating wind turbine and an oyster farm according to the present invention.

[0017] In the figure: 1. Floating wind turbine; 101. Y-shaped floating barrel; 102. Column; 103. Tower barrel; 104. Wind turbine; 2. Anchor line; 3. Shared mooring line; 4. Oyster farm; 5. Connecting mechanism; 501. Oyster raft mooring line; 502. Suspension assembly; 5021. Arc-shaped hook; 5022. Connecting column; 5023. Hidden groove; 5024. Arc-shaped stop bar; 5025, positioning part; 50251, chute; 50252, insertion block; 50253, return spring; 50254, slot; 50255, drag block; 503, buoy; 504, retracting and deploying assembly; 5041, housing; 5042, winding rod; 5043, through port; 5044, worm gear; 5045, worm; 5046, adjustment slot; 505, connection assembly; 5051, limit ring; 5052, connection rope. Specific implementation manner

[0018] To make the personnel in the technical field more clear and definite about the technical solution of the present invention, the present invention will be further described in detail below in conjunction with embodiments and the accompanying drawings, but the implementation manners of the present invention are not limited thereto.

[0019] As Figures 1 - 8 shown, this embodiment provides a wind and fishery mechanism combining a floating wind turbine and an oyster farm, including four groups of floating wind turbines 1, which are arranged in a rectangle, and the bottom ends of the floating wind turbines 1 are all installed with anchoring lines 2. A shared mooring line 3 is provided between adjacent floating wind turbines 1. A rectangle is formed among multiple groups of shared mooring lines 3. Multiple groups of anchoring lines 2 are respectively located at the corners of the rectangle formed by the shared mooring lines 3 and extend in the diagonal direction. An oyster farm 4 is horizontally arranged between multiple groups of floating wind turbines 1, and a connection mechanism 5 is provided between the side of the oyster farm 4 and the shared mooring line 3.

[0020] Overall working principle: During the construction and installation, first, the four groups of floating wind turbines 1 are respectively constructed and installed in a rectangle, and a set of anchoring lines 2 are respectively used to fix the bottom ends of the floating wind turbines 1. Then, the adjacent floating wind turbines 1 are connected by the shared mooring lines 3. At this time, a mutual restraint effect is formed among multiple groups of floating wind turbines 1, which can ensure the relative stability of the floating wind turbines 1 and reduce the construction cost. After the installation of the floating wind turbines 1 is completed, the oyster farm 4 is placed between multiple groups of floating wind turbines 1, and then the position of the oyster farm 4 is fixed through the connection mechanism 5. The fixation of the oyster farm 4 depends on the floating wind turbine 1 system for fixation, realizing the sharing of marine space resources and collaborative design, construction, and operation and maintenance.

[0021] In this embodiment, the floating wind turbine 1 includes a Y-shaped floating barrel 101, a column 102, a tower barrel 103, and a wind turbine 104. The Y-shaped floating barrel 101 floats on the sea surface. Columns 102 are vertically arranged at the ends and the middle position of the Y-shaped floating barrel 101. A tower barrel 103 is vertically arranged on the column 102 at the middle position of the top end of the Y-shaped floating barrel 101. A wind turbine 104 is installed at the top end of the tower barrel 103. The anchoring line 2 is installed at one end of the Y-shaped floating barrel 101.

[0022] Local working principle: During the installation of the floating wind turbine 1, the Y-shaped floating barrel 101 is first erected, then pulled and fixed by the anchoring line 2. After positioning with the shared mooring line 3, the tower barrel 103 and the wind turbine 104 are installed.

[0023] In this embodiment, the connection mechanism 5 includes an oyster raft mooring line 501, a suspension assembly 502, a buoy 503, a retracting and releasing assembly 504, and a connection assembly 505. The oyster raft mooring line 501 is located between the oyster raft field 4 and the shared mooring line 3. One end of the oyster raft mooring line 501 is provided with a suspension assembly 502, and the suspension assembly 502 is installed on the oyster raft field 4. Buoys 503 are provided on the oyster raft mooring line 501. Along the length direction of the shared mooring line 3, a retracting and releasing assembly 504 for retracting and releasing the oyster raft mooring line 501 is provided. One end of the oyster raft mooring line 501 away from the oyster raft field 4 is installed on the retracting and releasing assembly 504. A connection assembly 505 is provided between adjacent oyster raft mooring lines 501.

[0024] Local working principle: During the installation of the oyster raft field 4, the oyster raft units are first connected into a piece by means of cables, etc. to form an oyster raft field 4 for large-scale sea area aquaculture. The shape of the oyster raft field 4 is rectangular, and the side is parallel to the shared mooring line 3. Then, the oyster raft mooring line 501 inside the retracting and releasing assembly 504 is released, and the suspension assembly 502 at the end of the oyster raft mooring line 501 is clamped on the side of the oyster raft field 4. The oyster raft field 4 and the shared mooring line 3 are integrated and suspended and supported by the buoy 503.

[0025] In this embodiment, the suspension assembly 502 includes an arc-shaped hook 5021, a connecting column 5022, a hidden groove 5023, an arc-shaped stop rod 5024, and a positioning part 5025. One end of the arc-shaped hook 5021 is fixed with a connecting column 5022, and the oyster raft mooring line 501 is fixed on the connecting column 5022. A hidden groove 5023 is opened at the end of the arc-shaped hook 5021 away from the connecting column 5022. An arc-shaped stop rod 5024 is slidably arranged inside the hidden groove 5023, and a positioning part 5025 for fixing the arc-shaped stop rod 5024 is provided inside the connecting column 5022.

[0026] Local working principle: During the installation of the oyster raft field 4, the arc-shaped stop rod 5024 is initially located inside the arc-shaped hook 5021. First, the arc-shaped hook 5021 is clamped on the side of the oyster raft field 4, then the arc-shaped stop rod 5024 is pulled out, surrounded by the cylinder on the side of the oyster raft field 4, and the end of the arc-shaped stop rod 5024 is fixed by the positioning part 5025. The arc-shaped hook 5021 and the arc-shaped stop rod 5024 are circularly sleeved on the cylinder on the side of the oyster raft field 4.

[0027] In this embodiment, the positioning portion 5025 includes a chute 50251, a plug 50252, a return spring 50253, a slot 50254, and a drag block 50255. The chute 50251 is formed inside the connecting column 5022, and the end of the chute 50251 communicates with the outside of the connecting column 5022. A plug 50252 is slidably installed inside the chute 50251. A return spring 50253 is disposed between the plug 50252 and the inner end of the chute 50251. A slot 50254 adapted to the plug 50252 is formed at the end of the arc-shaped stop bar 5024. A drag block 50255 is fixed to the side of the plug 50252, and the drag block 50255 is slidably connected to the connecting column 5022.

[0028] Local working principle: After the end of the arc-shaped stop bar 5024 is inserted into the chute 50251, the return spring 50253 applies a thrust force to insert the plug 50252 into the slot 50254 to position the end of the arc-shaped stop bar 5024 and prevent the arc-shaped stop bar 5024 from being withdrawn from the chute 50251. Since the oyster farm 4 has a certain service life, generally 4 - 5 years, when replacing the oyster farm 4, the plug 50252 is controlled to slide through the drag block 50255, withdrawn from the slot 50254, then the arc-shaped stop bar 5024 is pulled out, and the arc-shaped stop bar 5024 is squeezed into the hidden groove 5023, and finally the arc-shaped hook 5021 is removed.

[0029] In this embodiment, the plug 50252 is in the shape of a right trapezoid, and the hypotenuse of the plug 50252 faces the opening of the chute 50251 and the connecting column 5022.

[0030] Local working principle: After the arc-shaped stop bar 5024 is inserted into the chute 50251, it can directly contact the hypotenuse of the plug 50252, squeeze the plug 50252 into the chute 50251, and after the insertion of the arc-shaped stop bar 5024 is completed, the plug 50252 automatically resets under the action of the return spring 50253 to complete the automatic locking of the arc-shaped stop bar 5024, which is more convenient to use.

[0031] In this embodiment, the winding and unwinding assembly 504 includes a housing 5041, a winding rod 5042, a through hole 5043, and a rotating portion. The housing 5041 is fixed on the shared mooring line 3. A winding rod 5042 is rotatably installed between the two ends of the housing 5041. Through holes 5043 are formed on the outer sides of the housing 5041. The oyster farm mooring lines 501 all enter the housing 5041 through the through holes 5043 and are fixed on the winding rod 5042. A rotating portion is provided at the end of the winding rod 5042.

[0032] Local working principle: Since the sizes of the oyster rafts 4 are different, during the fixing process, the rotation of the winding rod 5042 is controlled by the rotating part. First, the mooring line 501 of the oyster raft is released. After the end of the mooring line 501 of the oyster raft is connected to the oyster raft 4, the reverse rotation of the winding rod 5042 is controlled to tension the mooring line 501 of the oyster raft, and the oyster raft 4 is controlled to float on the sea surface.

[0033] In this embodiment, the rotating part includes a worm gear 5044, a worm 5045 and an adjustment groove 5046. The worm gear 5044 is installed at the end of the winding rod 5042. The worm 5045 is rotatably installed at the end of the housing 5041 and meshes with the outer side of the worm gear 5044. One end of the worm 5045 extends to the outside of the housing 5041, and an adjustment groove 5046 is provided at the end of the worm 5045 located outside the housing 5041.

[0034] Local working principle: When controlling the rotation of the winding rod 5042, the rotation of the worm 5045 is controlled by inserting a hexagonal wrench into the internal control of the adjustment groove 5046. The worm 5045 controls the rotation of the worm gear 5044, and then controls the rotation of the winding rod 5042 to take in and release the mooring line 501 of the oyster raft. The worm gear 5044 and the worm 5045 can be self-locked, which can ensure the stability of the length of the mooring line 501 of the oyster raft.

[0035] In this embodiment, the connection assembly 505 includes a limit ring 5051 and a connection rope 5052. The limit ring 5051 is sleeved on the mooring line 501 of the oyster raft, and a connection rope 5052 is provided between adjacent limit rings 5051.

[0036] Local working principle: By using the connection assembly 505, multiple groups of mooring lines 501 of the oyster raft can be connected into one body, which is convenient for taking another group of mooring lines 501 of the oyster raft after one group of mooring lines 501 of the oyster raft is installed.

[0037] As Figures 1 - 7 shown, the following is a simulation method combining a floating wind turbine and an oyster raft provided in this embodiment: Step 1: For the floating wind turbine 1, the blade element momentum theory is adopted for the wind turbine 104. Each blade is divided into radial sections, and according to the blade geometry and local flow conditions, the lift, drag, axial force, tangential force and torque of the blade element are calculated to determine the aerodynamic load of the wind turbine; Step 2: For the floating wind turbine 1, the floating foundation includes a large-size structure Y-shaped floating barrel 101, a column 102 and a tower barrel 103. The three-dimensional potential flow theory method is used to calculate the hydrodynamic performance. The potential flow solution adopts the time domain method. First, the radiation damping, added mass and wave exciting force obtained from the frequency domain analysis are Fourier-transformed to obtain the added mass, delay function and wave exciting force in the time domain, and then the motion equation of the floating body structure in the time domain is established; Step 3: For small-scale structures such as the oyster farm 4, the Morison formula method is used to calculate the hydrodynamic loads, with emphasis on considering the added mass effect and the viscous drag effect; Step 4: The structural dynamics of the anchoring line 2, the shared mooring line 3, the connection mechanism 5, etc. are dynamically calculated using the lumped mass method. The mooring line is divided into small segments, each small segment is represented by a mass point, and adjacent mass points are connected by springs. The external forces on the mooring line are regarded as acting on the mass points; Step 5: Based on Steps 1-4, a multi-body coupling dynamics analysis model of a wind-fishing mechanism combining a floating wind turbine and an oyster farm is constructed to reasonably evaluate the hydrodynamic performance of the entire system under the actions of aerodynamic loads, flow loads, wave loads, mooring loads, etc., and to provide a reliable numerical calculation method for the optimal design of the scheme.

[0038] As Figure 8 shown, a simulation method process of a combination of a floating wind turbine and an oyster farm is implemented using the SIMO-RIFLEX-Aerodyn joint simulation system: The SIMO module processes the hydrodynamic loads on the floating foundation of the floating wind turbine 1 (including the Y-shaped buoy 101, the column 102, and the tower 103) in the time domain based on the potential flow theory; AeroDyn simulates the aerodynamic forces / moments of the wind turbine 104 on the floating wind turbine 1 based on the blade element momentum BEM theory and the generalized dynamic wake GDW theory; The RIFLEX module is used to simulate slender structures such as the anchoring line 2, the shared mooring line 3, the oyster farm 4, and the connection mechanism 5, and the Morison method is used to calculate the hydrodynamic forces; The entire system is solved by time-domain coupling in RIFLEX. This fully coupled simulation method considers the real-time coupling effect and simulates the dynamics and motions under the wind, wave, and flow loads. The overall calculation process is as follows: The wind, wave, and flow conditions, etc. are used as inputs. SIMO calculates the hydrodynamic loads, AeroDyn calculates the aerodynamic loads, RIFLEX calculates the mooring system and slender structure loads and performs time-domain coupling solution for the entire system, and finally obtains the hydrodynamic response results of the wind turbine, the floating foundation, and the mooring system, etc.

[0039] As mentioned above, it is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the scope disclosed by the present invention, according to the technical solution and its concept of the present invention, makes equivalent substitutions or changes, all belong to the protection scope of the present invention.

Claims

1. A wind-fishing mechanism combining a floating fan and an oyster farm, comprising a floating fan (1), characterized in that: Four groups of floating wind turbines (1) are arranged, and the floating wind turbines (1) are distributed in a rectangular shape. Anchor lines (2) are installed at the bottom of each floating wind turbine (1). A shared mooring line (3) is arranged between adjacent floating wind turbines (1). A plurality of groups of shared mooring lines (3) form a rectangle. The plurality of groups of anchor lines (2) are respectively located at the corners of the rectangle formed by the shared mooring lines (3) and extend in a diagonal direction. Oyster beds (4) are arranged horizontally between the plurality of groups of floating wind turbines (1). A connecting mechanism (5) is arranged between the side of the oyster bed (4) and the shared mooring line (3).

2. The wind-fishing mechanism combining a floating fan and an oyster farm according to claim 1, characterized in that: The floating wind turbine (1) comprises a Y-shaped buoy (101), a column (102), a tower (103) and a wind turbine (104). The Y-shaped buoy (101) floats on the sea surface. The columns (102) are vertically arranged at the ends and the middle of the Y-shaped buoy (101). The tower (103) is vertically arranged on the column (102) at the middle position of the top of the Y-shaped buoy (101). The wind turbine (104) is installed at the top of the tower (103). The anchor line (2) is installed at one end of the Y-shaped buoy (101).

3. A wind-fishing mechanism combining a floating fan and an oyster farm according to claim 1 or 2, characterized in that: The connection mechanism (5) comprises an oyster rack mooring line (501), a suspension assembly (502), a buoy (503), a retracting assembly (504) and a connection assembly (505). The oyster rack mooring line (501) is located between an oyster field (4) and a shared mooring line (3). One end of the oyster rack mooring line (501) is provided with a suspension assembly (502), and the suspension assembly (502) is installed on the oyster field (4). Buoys (503) are provided on the oyster rack mooring line (501). Retracting assemblies (504) for retracting and releasing the oyster rack mooring line (501) are provided along the length direction of the shared mooring line (3). One end of the oyster rack mooring line (501) away from the oyster field (4) is installed on the retracting assembly (504). A connection assembly (505) is provided between adjacent oyster rack mooring lines (501).

4. The wind-fishing mechanism combining a floating fan and an oyster farm according to claim 3, characterized in that: The suspension assembly (502) comprises an arc-shaped hook (5021), a connecting column (5022), a hidden groove (5023), an arc-shaped blocking rod (5024) and a positioning portion (5025); one end of the arc-shaped hook (5021) is fixed with the connecting column (5022); the oyster rack mooring line (501) is fixed on the connecting column (5022); one end of the arc-shaped hook (5021) away from the connecting column (5022) is provided with a hidden groove (5023); the inside of the hidden groove (5023 is slidably provided with an arc-shaped blocking rod (5024); and the inside of the connecting column (5022) is provided with a positioning portion (5025) for fixing the arc-shaped blocking rod (5024).

5. The wind-fishing mechanism combining a floating fan and an oyster farm according to claim 4, characterized in that: The positioning part (5025) comprises a slide groove (50251), an insert block (50252), a return spring (50253), a slot (50254) and a drag block (50255); the slide groove (50251) is arranged inside the connecting column (5022), and the end of the slide groove (50251) is connected to the outside of the connecting column (5022); the insert block (50252) is slidably installed inside the slide groove (50251), a return spring (50253) is arranged between the insert block (50252) and the inner end of the slide groove (50251); the end of the arc-shaped blocking rod (5024) is provided with a slot (50254) matched with the insert block (50252); the drag block (50255) is fixed to the side of the insert block (50252), and the drag block (50255) is slidably connected to the connecting column (5022).

6. The wind-fishing mechanism combining a floating fan and an oyster farm according to claim 5, characterized in that: The shape of the insert block (50252) is a right-angled trapezoid, and the oblique side of the insert block (50252) faces the opening on the slide groove (50251) and the connecting column (5022).

7. The wind-fishing mechanism combining a floating fan and an oyster farm according to claim 3, characterized in that: The retracting and releasing assembly (504) comprises a shell (5041), a winding rod (5042), a through-hole (5043) and a rotating part. The shell (5041) is fixed on the shared mooring line (3). The winding rod (5042) is rotatably installed between the two ends of the shell (5041). The outer side of the shell (5041) is provided with a through-hole (5043). The oyster rack mooring lines (501) enter the interior of the shell (5041) through the through-hole (5043) and are fixed on the winding rod (5042). The end of the winding rod (5042) is provided with a rotating part.

8. The wind-fishing mechanism combining a floating fan and an oyster farm according to claim 7, characterized in that: The rotating part comprises a worm wheel (5044), a worm (5045) and an adjusting groove (5046); the worm wheel (5044) is mounted on the end of the winding rod (5042); the worm (5045) is rotatably mounted on the end of the housing (5041) and meshes with the outer side of the worm wheel (5044); one end of the worm (5045) extends to the outside of the housing (5041); and an adjusting groove (5046) is provided at one end of the worm (5045) located outside the housing (5041).

9. The wind-fishing mechanism combining a floating fan and an oyster farm according to claim 3, characterized in that: The connection assembly (505) comprises a limiting ring (5051) and a connecting rope (5052). The limiting ring (5051) is sleeved on the oyster rack mooring line (501), and connecting ropes (5052) are arranged between adjacent limiting rings (5051).

10. A simulation method of a floating wind turbine combined with an oyster farm, based on a wind-fishing mechanism combined with a floating wind turbine and an oyster farm according to claims 1-9, characterized in that: The steps include: Step 1: For the floating wind turbine (1), the wind turbine (104) uses blade element momentum theory to divide each blade into radial sections, and calculates the lift, drag, axial force, tangential force and torque of the blade unit according to the blade geometry and local flow conditions, thereby determining the wind turbine aerodynamic load; Step 2: For the floating wind turbine (1), the floating foundation includes a large-sized structure Y-shaped buoy (101), a column (102), and a tower (103). The hydrodynamic performance is calculated using a three-dimensional potential flow theory method. The potential flow solution uses a time domain method to first perform Fourier transform on the radiation damping, additional mass, and wave excitation force obtained by frequency domain analysis to obtain the additional mass, delay function, and wave excitation force in the time domain, and then establish the motion equation of the floating structure in the time domain; Step 3: For the small-scale structures of the oyster farm (4), the hydrodynamic loads are calculated using the Morison formula method, focusing on the added mass effect and the viscous drag effect; Step 4: Use the concentrated mass method to dynamically calculate the structural dynamics of the anchor line (2), the shared mooring line (3), and the connecting mechanism (5), divide the mooring line into small segments, each small segment is represented by a mass point, and adjacent mass points are connected by springs. The external force on the mooring line is regarded as acting on the mass point; Step 5: Based on steps 1-5, a multi-body coupling dynamic analysis model of a wind-fishing mechanism combining a floating wind turbine and an oyster farm is constructed.

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