Offshore wind power single pile foundation cage vibration suppression device

Abstract

The invention belongs to the technical field of wind turbine generator auxiliary work, and discloses an offshore wind power single pile foundation cage vibration suppression device which comprises a flow breaking plate in an equilateral rectangle shape and flow disturbing assemblies installed at the four corners of the flow breaking plate correspondingly. Through the cooperation of the flow breaking plate, the flow disturbing assembly and other structures, when one acoustic Doppler flow velocity profiler detects that the impact force of the ocean current is too large, the outer end of the flow guide plate is controlled to face the ocean current through the intelligent adjusting assembly, and the ocean current is shunted by the shunting boxes and reaches the other two shunting boxes through the notches in the flow guide plate; the guide plates II are in fixed postures and are not in the same direction as the ocean current, and the ocean current is in a disordered state and is thoroughly disturbed, so that the situation that the flow velocity is not reduced and the ocean current converges with other ocean currents to form larger-scale ocean current or eddy current is prevented, the impact of the ocean current on other cage bodies is reduced, and the service life of the cage bodies is prolonged. And the safety of the cage in other areas is further protected.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of auxiliary work of wind turbines, and particularly relates to a vibration suppression device for a single-pile foundation cage of an offshore wind turbine. BACKGROUND

[0002] A single pile is the most commonly used foundation form of an offshore wind turbine, which is generally implanted into the seabed by piling or drilling to support the tower of the wind turbine, and a cage is used to protect the single pile from soil loss around the pile caused by the flow of seawater, which is generally composed of concrete blocks or synthetic materials and can effectively disperse the impact of the flow of seawater. However, it should be noted that the flow of seawater is chaotic, and the directions of the impact on the cage are different, and the vibration caused by the impact of the flow of seawater on the cage will gradually cause the parts inside the wind turbine to fall off, thereby shortening the service life of the wind turbine. The prior art uses a tuned mass damper to achieve the purpose of vibration suppression, but this cannot weaken the impact of the flow of seawater. When the flow of seawater passes through a cage and merges with other flows of seawater, it is extremely likely to cause vortex flow, thereby increasing the damage of the cage in the sea. Therefore, the present application provides a vibration suppression device for a single-pile foundation cage of an offshore wind turbine. SUMMARY

[0003] To solve the problems in the background art, the present application provides a vibration suppression device for a single-pile foundation cage of an offshore wind turbine, which can weaken the impact of the flow of seawater when the flow of seawater passes through a cage and merges with other flows of seawater, thereby preventing vortex flow and reducing the damage of the cage in the sea.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a vibration suppression device for a single-pile foundation cage of an offshore wind turbine, comprising a flow-breaking plate in the shape of an equilateral rectangle and a turbulence assembly installed at each corner of the flow-breaking plate. The flow-breaking plate is sleeved around the outer periphery of the cage. A plurality of guide plates are hingedly connected at equal intervals on the four sides of the flow-breaking plate. A plurality of intelligent adjustment assemblies are installed on the top of the flow-breaking plate and used to adjust the inclination angles of each row of guide plates. The turbulence assembly comprises a pressure box fixed inside the flow-breaking plate, the inside of the pressure box is provided with a high-elasticity rubber block, the inside of the flow-breaking plate is movably sleeved with a guide rod, one end of the guide rod is connected with the high-elasticity rubber block, and the other end of the guide rod is hingedly connected with a flow-dividing box. A plurality of guide plates one are installed at equal intervals on the two sides of the flow-dividing box in the vertical direction, a plurality of guide plates two are installed inside the flow-dividing box, every two guide plates two in the horizontal direction form a group and are in the shape of an "eight", and an acoustic Doppler current profiler is installed on the outside of the flow-dividing box and used to detect the flow speed and direction of seawater. Still comprising a plurality of shock-absorbing components distributed equiangularly in a ring, which are installed on the cage and located on sea level; A plurality of connecting rods for connecting the pressure boxes and the shock-absorbing components.

[0005] Preferably, the four corners of the flow-breaking plate are chamfered, the flow-dividing box is movably penetrated through the chamfered part of the flow-breaking plate, the flow-dividing box is isosceles triangular and the apex is hingedly connected to the guide rod, the outer side of the flow-dividing box is circular arc-shaped, and the end of the flow guide plate close to the flow-breaking plate is provided with a notch.

[0006] Preferably, the flow-breaking plate is composed of four independent structures, the inner side of each independent structure is circular arc-shaped and forms a whole circle after being combined into the flow-breaking plate, and the upper and lower ends of the circle are equiangularly provided with holes in a ring.

[0007] Preferably, the intelligent adjusting component comprises a protection box fixed on the top of the flow-breaking plate, a waterproof hydraulic rod movably penetrated through the side surface of the protection box is arranged in the protection box, the end of the waterproof hydraulic rod is movably connected with a push rod through a guide rod, and the flow guide plates in the same row are commonly hingedly connected to the push rod.

[0008] Preferably, a metal cover fixedly installed by bolts is arranged on the top of the protection box, the inside of the protection box is filled with air, and a rubber sealing ring is arranged on the contact part between the telescopic end of the waterproof hydraulic rod and the side surface of the protection box.

[0009] Preferably, the push rod is composed of two metal rods with equal length, the two metal rods are fixedly installed on the guide rod through cooperation of bolts and nuts, and each intelligent adjusting component is arranged on each independent structure in the flow-breaking plate.

[0010] Preferably, the shock-absorbing component comprises a shock-absorbing box filled with liquid, a plurality of shock-absorbing plates are equidistantly arranged in the shock-absorbing box, a conducting rod is movably penetrated through the bottom of the shock-absorbing box, the edge of the conducting rod is connected with the shock-absorbing box through a rubber layer, and the bottom of the conducting rod is fixedly connected with the connecting rod through bolts.

[0011] Preferably, the shock-absorbing component further comprises a cover plate fixedly installed on the top of the shock-absorbing box through bolts, and the liquid level in the shock-absorbing box is higher than the top of the conducting rod.

[0012] Compared with the prior art, the application has the following beneficial effects: The application cooperates the structures of the flow breaking plate and the flow disturbing assembly, one acoustic Doppler current profiler detects that the sea current impact force is too large, the outer end of the flow guide plate is controlled by the intelligent adjusting assembly to face the sea current, the sea current is divided by the flow dividing box and reaches the other two flow dividing boxes through the slot of the flow guide plate, the sea current impacts the two side flow dividing boxes and is cut by the one side guide plate, then contacts the several guide plates two, the guide plate two is in a fixed posture and is not the same as the direction of the sea current, the sea current is in a turbulent state, is guided by the two rows of flow guide plates at the lower end, impacts the flow dividing box at the lower end, and is completely disturbed, so that the flow rate is not reduced, and the sea current is combined with other sea currents to form a larger sea current or vortex, the impact of the sea current on other cages is reduced, and the safety of the cages in other areas is further protected.

[0013] The application cooperates the structures of the intelligent adjusting assembly and the flow guide plate, when the waterproof hydraulic rod is controlled to stretch and retract by the acoustic Doppler current profiler, the stretching and retracting end drives the push rod to displace through the guide rod, and forces the flow guide plate to fold, since the push rod is hinged to the flow guide plate, and the end of the flow guide plate is hinged to the flow breaking plate, when the flow guide plate is folded, it will drive the guide rod to move in the slot at the stretching and retracting end of the waterproof hydraulic rod through the push rod, so that the phenomenon of jamming in the working process of the device is avoided, and one intelligent adjusting assembly controls the folding of the several flow guide plates in one row, which further improves the working efficiency of the device.

[0014] The application cooperates the structures of the shock absorbing assembly and the connecting rod, when the sea current passes through the flow breaking plate and generates vibration, the shock is transmitted to the conducting rod through the connecting rod, since the shock absorbing box is filled with liquid and is wrapped outside the conducting rod, the shock is transmitted to the liquid through the conducting rod, and the liquid flow is hindered by the blocking of the shock stopping plate, so that the vibration is better reduced, the conducting rod is not completely in contact with the shock absorbing box, and the two are sealed by the rubber layer, so that the conducting rod can move and accept a larger degree of vibration, and the liquid cannot leak. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic view of the appearance structure of the application; Figure 2 It is a schematic view of the flow breaking plate and the structure above it; Figure 3 It is a schematic view of the cooperation of the flow breaking plate and the flow disturbing assembly; Figure 4 It is a schematic view of the internal structure of the flow dividing box; Figure 5 It is a schematic view of the sea water flow impacting the flow disturbing assembly; Figure 6 It is a schematic view of the structure of the flow breaking plate; Figure 7 It is a schematic view of the structure of the flow breaking plate; Figure 6 It is an enlarged schematic view of A in the application Figure 8 This is a schematic diagram of the cooperation between the guide rod and the push rod structure of the present invention; Figure 9 This is a schematic diagram showing the positions of several vibration damping components of the present invention; Figure 10 This is a schematic diagram of the exploded structure of the vibration damping component of the present invention.

[0016] In the diagram: 1. Flow disruptor; 2. Flow turbulence assembly; 21. Pressure box; 22. High-elasticity rubber block; 23. Guide rod; 24. Diverter box; 25. Guide plate one; 26. Guide plate two; 27. Acoustic Doppler velocity profiler; 3. Flow deflector; 4. Intelligent adjustment assembly; 41. Protective box; 42. Waterproof hydraulic rod; 43. Guide rod; 44. Push rod; 5. Connecting rod; 6. Vibration damping assembly; 61. Vibration damping box; 62. Cover plate; 63. Vibration damping plate; 64. Conducting rod; 65. Rubber layer. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figures 1 to 10 As shown, the present invention provides a vibration damping device for a single pile foundation cage for offshore wind power, including a flow-breaking plate 1 in the shape of an equilateral rectangle and flow-disrupting components 2 respectively installed at the four corners of the flow-breaking plate 1. One flow-breaking plate is installed on the outer periphery of the cage; Several guide plates 3 are equidistantly hinged to the four sides of the flow breaker 1; Several intelligent adjustment components 4 are installed on the top of the baffle 1 and are used to adjust the tilt angle of each row of guide vanes 3 respectively; The turbulence assembly 2 includes a pressure box 21 fixed inside the flow-breaking plate 1. A high-elasticity rubber block 22 is provided inside the pressure box 21. A guide rod 23 is movably sleeved inside the flow-breaking plate 1. One end of the guide rod 23 is connected to the high-elasticity rubber block 22, and the other end of the guide rod 23 is hinged to a flow-diverting box 24. Several guide plates 25 are installed at equal intervals in the vertical direction on both sides of the diversion box 24. Several guide plates 26 are installed inside the diversion box 24. Every two guide plates 26 in the horizontal direction form a group and are in the shape of an "eight". An acoustic Doppler current profiler 27 for detecting the speed and direction of seawater flow is installed on the outside of the diversion box 24. It also includes several shock-damping components 6 distributed at equal angles in a circumferential direction. The shock-damping components 6 are installed on the cage and located at sea level. Several connecting rods 5 are used to connect the various pressure boxes 21 and the vibration damping assembly 6.

[0019] The four corners of the flow divider 1 are chamfered. The flow divider box 24 is movable through the chamfered part of the flow divider 1. The flow divider box 24 is in the shape of an isosceles triangle and its vertex is hinged to the guide rod 23. The outer side of the flow divider box 24 is arc-shaped. The guide plate 3 is provided with a slot at one end near the flow divider 1.

[0020] The above solution is adopted: such as Figure 5 The shown turbulence component 2 and flow-breaking plate 1, when one of the acoustic Doppler current profilers 27 detects that the impact force of the ocean current is too large in real time, it controls the flow-guiding plates 3 located on both sides of the acoustic Doppler current profiler 27 to fold through the intelligent adjustment component 4, so that the outer end of the flow-guiding plate 3 faces the direction of the ocean current. When the ocean current hits the arc edge of the diversion box 24, it is diverted into two ends and moves to the two side flow-guiding plates 3 respectively. Each row of flow-guiding plates 3 will guide part of the ocean current through the slot on it, and finally through the other two diversion boxes 24 located on both sides of the turbulence component 2 that is hit by the ocean current. At this time, after the diversion box 24 is hit by the ocean current, it retracts into the interior of the flow-breaking plate 1 and compresses the high elastic rubber block 22. After the ocean current is guided, it impacts the two diversion boxes 24, causing them to fold. The highly elastic rubber blocks 22 within are stretched and preferentially cut and diverted by one side guide plate 25 into the interior of the diversion box 24, where they come into contact with several internal guide plates 26. Since the guide plates 26 are fixed in position and not aligned with the direction of the ocean current, the current is again disturbed by them. Ultimately, the current is guided away from the diversion box 24 by the other side guide plate 25. After folding, the side of the diversion box 24 faces the lower guide plate 3. When the ocean current is in a turbulent state, in order to prevent the turbulent current from coming into contact with the external ocean current again, the contact is located at the two rows of guide plates 3 at the lower end of the folded diversion box 24, which further disturb the ocean current. Finally, the ocean current hits the lower diversion box 24 and completely disturbs the ocean current. At this time, the ocean current passing through the device is weakened to prevent the ocean current from passing through the device and merging with other ocean currents to form a larger ocean current or eddy. At the same time, it reduces the impact of the ocean current on other cages and further protects the safety of cages in other areas and their internal monopiles.

[0021] It should be noted that, for ease of understanding and explanation, the impact of the ocean current is directed towards the diversion box 24 at the top of the diagram.

[0022] like Figure 1 , Figure 2 and Figure 6 As shown, the flow-breaking plate 1 is composed of four independent structures. The inner side of each independent structure is arc-shaped and they are combined into a complete circle after the flow-breaking plate 1 is formed. The upper and lower ends of the circle are respectively provided with holes at equal angles in the circumference.

[0023] Adopting the above scheme: when the device is installed, each independent component in the flow breaking plate 1 can be installed in turn, thereby reducing the installation difficulty, and the holes in the flow breaking plate 1 can enable the device to be fixed on the cage by any material selected by the staff during the installation process, and the circular part in the flow breaking plate 1 can also enable the device to better fit the cage.

[0024] As shown in Figures 1-8 The intelligent adjusting assembly 4 includes a protection box 41 fixed on the top of the flow breaking plate 1, the inside of the protection box 41 is provided with a waterproof hydraulic rod 42 movably penetrating the side surface of the protection box 41, the end of the waterproof hydraulic rod 42 is movably connected with a push rod 44 through a guide rod 43, and the guide vanes 3 in the same row are collectively hinged on the push rod 44.

[0025] Adopting the above scheme: when the acoustic Doppler current profiler 27 controls the waterproof hydraulic rod 42 to stretch and retract, the stretching and retracting end drives the push rod 44 to displace through the guide rod 43, and forces the guide vanes 3 to fold, since the push rod 44 is hinged with the guide vanes 3, and the end of the guide vanes 3 is hinged with the flow breaking plate 1, when the guide vanes 3 are folded, they will push the guide rod 43 movably in the slot at the stretching and retracting end of the waterproof hydraulic rod 42 through the push rod 44, thereby avoiding the phenomenon of jamming during the working process of the device, and the folding of the guide vanes 3 in the row is controlled by one intelligent adjusting assembly 4, which further improves the working efficiency of the device.

[0026] As shown in Figures 1-8 The top of the protection box 41 is provided with a metal cover fixed by bolts, the inside of the protection box 41 is filled with air, and the stretching and retracting end of the waterproof hydraulic rod 42 and the part in contact with the side surface of the protection box 41 are provided with a rubber sealing ring.

[0027] Adopting the above scheme: when the inside of the waterproof hydraulic rod 42 needs to be repaired, the bolts of the metal cover on the protection box 41 can be directly disassembled, thereby facilitating subsequent maintenance; In the working state of the waterproof hydraulic rod 42, the air in the inside of the protection box 41 and the rubber sealing ring arranged on the side surface can better isolate seawater, so that the seawater can as little as possible contact the waterproof hydraulic rod 42, thereby further prolonging the maintenance period and service life of the waterproof hydraulic rod 42.

[0028] As shown in Figures 1-8 The push rod 44 is composed of two metal rods with equal lengths, the two metal rods are fixed on the guide rod 43 by cooperating with the bolts and nuts, and each intelligent adjusting assembly 4 is located on each independent structure in the flow breaking plate 1.

[0029] Adopting the above scheme: when the guide vanes 3 are perpendicular to the side edge of the flow breaking plate 1, the joint of the two metal rods in the push rod 44 and the joint of the two independent structures in the flow breaking plate 1 are located on the same axis; When the device is not installed, the two metal rods are independent individuals and are hinged with each guide plate 3, when the breaking plate 1 is completed, the two metal rods can be inserted on the guide rod 43, and the two metal rods are fixed on the guide rod 43 through bolts, which can better reduce the difficulty of installation work, and is convenient for subsequent disassembly and assembly.

[0030] As shown in Figure 8 and Figure 9 The shock absorbing assembly 6 includes a shock absorbing box 61 filled with liquid, a plurality of shock absorbing plates 63 are equidistantly arranged in the shock absorbing box 61, a transmission rod 64 is movably penetrated through the bottom of the shock absorbing box 61, the edge of the transmission rod 64 is connected with the shock absorbing box 61 through a rubber layer 65, and the bottom of the transmission rod 64 is fixedly connected with the connecting rod 5 through bolts.

[0031] The shock absorbing assembly 6 further includes a cover plate 62 fixedly installed on the top of the shock absorbing box 61 through bolts, and the liquid level in the shock absorbing box 61 is higher than the top of the transmission rod 64.

[0032] By adopting the above scheme, when the sea current passes through the breaking plate 1 and generates vibration, the vibration is transmitted to the transmission rod 64 through the connecting rod 5, since the shock absorbing box 61 is filled with liquid and covers the outer periphery of the transmission rod 64, the vibration is transmitted to the liquid through the transmission rod 64, and the blocking of the shock absorbing plates 63 can hinder the flow of the liquid, so that the vibration is better reduced; The transmission rod 64 does not completely contact with the shock absorbing box 61, and the two are sealed through the rubber layer 65, so that the transmission rod 64 can move and receive a larger degree of vibration, and the liquid cannot leak; The existence of the cover plate 62 enables the subsequent workers to more conveniently check or add new liquid into the shock absorbing box 61; It should be noted that the liquid in the shock absorbing box 61 can be made of a suitable shock absorbing material, and all descriptions in the document do not make explicit requirements for the liquid, and it is not limited that a certain liquid can act in the shock absorbing box 61 and be used for shock absorption, and the selection of the material should be changed according to the actual application.

[0033] The working principle and use process of the application are as follows: When the impact force of the sea current detected by one of the acoustic Doppler current profilers 27 is too large in real time, the waterproof hydraulic rod 42 is telescoped and drives the push rod 44 to displace through the guide rod 43, and forces the guide plate 3 to be folded; Thus, the outer end of the guide plate 3 is directed towards the direction of the sea current, when the sea current impacts the circular arc side of the shunt box 24, it is shunted into two ends and moves to the two sides of the guide plate 3 respectively, each row of guide plates 3 will guide part of the sea current to pass through the slot, and finally pass through the other two shunt boxes 24 located on the two sides of the turbulence assembly 2 impacted by the sea current, and at this time, the shunt box 24 is retracted to the inside of the breaking plate 1 and compresses the high-elastic rubber block 22 after being impacted by the sea current; When the sea current is guided, it impacts the two sides of the shunt box 24 and makes it fold, the high-elastic rubber block 22 in it is cut and shunted to the inside of the shunt box 24 by the guide plate one 25 on one side, and contacts the guide plate two 26 inside, which is in a fixed posture and is not the same as the direction of the sea current, which makes the sea current be disturbed again by the guide plate two 26, and finally guided out of the shunt box 24 by the guide plate one 25 on the other side, and the side of the shunt box 24 after folding is directed towards the lower end of the guide plate 3, at this time, the sea current is in a turbulent state, it contacts the two rows of guide plates 3 located at the lower end of the shunt box 24 after folding, and disturbs the sea current again, and finally the sea current impacts the lower end of the shunt box 24 and completely disturbs the sea current; When the sea current passes through the breaking plate 1 and produces vibration, the vibration is transmitted to the transmission rod 64 through the connecting rod 5, since the damping box 61 is filled with liquid and wrapped around the outer periphery of the transmission rod 64, the vibration is transmitted to the liquid through the transmission rod 64, and the blocking of the damping plate 63 can hinder the flow of the liquid, thereby reducing the vibration; The transmission rod 64 does not completely contact the damping box 61, and the two are sealed by the rubber layer 65, thereby allowing the transmission rod 64 to move and accept a larger degree of vibration, while the liquid cannot leak.

[0034] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present application have been shown and described, it would be appreciated by those skilled in the art that changes can be made in these embodiments without departing from the principles and spirit of the application, the scope of which is defined in the claims and their equivalents.

Claims

1. A vibration damping device for a monopile foundation cage in offshore wind power, characterized in that, It includes a flow-breaking plate (1) in the shape of an equilateral rectangle and flow-breaking components (2) installed at the four corners of the flow-breaking plate (1). The flow-breaking plate (1) is sleeved on the outer periphery of the cage; Several guide plates (3) are equidistantly hinged to the four sides of the flow breaker (1); Several intelligent adjustment components (4) are installed on the top of the baffle (1) and are used to adjust the tilt angle of each row of guide vanes (3). The turbulence assembly (2) includes a pressure box (21) fixed inside the flow-breaking plate (1), a high elastic rubber block (22) is provided inside the pressure box (21), and a guide rod (23) is movably sleeved inside the flow-breaking plate (1). One end of the guide rod (23) is connected to the high elastic rubber block (22), and the other end of the guide rod (23) is hinged to a diversion box (24). Several guide plates (25) are installed at equal intervals in the vertical direction on both sides of the diversion box (24). Several guide plates (26) are installed inside the diversion box (24). Each pair of guide plates (26) in the horizontal direction forms a group and is in the shape of an "eight". An acoustic Doppler current profiler (27) for detecting the flow velocity and direction of seawater is installed on the outside of the diversion box (24). It also includes several shock-damping components (6) distributed at equal angles in a circumferential direction, the shock-damping components (6) being installed on the cage and located at sea level; Several links (5) are used to connect the various pressure boxes (21) and the shock-absorbing components (6).

2. The vibration damping device for offshore wind turbine monopile foundations according to claim 1, characterized in that: The four corners of the flow-breaking plate (1) are chamfered. The flow-dividing box (24) is movably inserted through the chamfered part of the flow-breaking plate (1). The flow-dividing box (24) is an isosceles triangle and its vertex is hinged to the guide rod (23). The outer side of the flow-dividing box (24) is arc-shaped. The guide plate (3) has a slot at one end near the flow-breaking plate (1).

3. The vibration damping device for offshore wind turbine monopile foundations according to claim 2, characterized in that: The flow-breaking plate (1) is composed of four independent structures. The inner side of each independent structure is arc-shaped and they are combined into a flow-breaking plate (1) to form a complete circle. The upper and lower ends of the circle are respectively provided with holes at equal angles in the circumference.

4. The vibration damping device for offshore wind turbine monopile foundations according to claim 3, characterized in that: The intelligent adjustment component (4) includes a protective box (41) fixed to the top of the flow-breaking plate (1). Inside the protective box (41) is a waterproof hydraulic rod (42) with a telescopic end that extends through the side of the protective box (41). The end of the waterproof hydraulic rod (42) is movably connected to a push rod (44) via a guide rod (43). The flow-guiding plates (3) located in the same row are hinged together on the push rod (44).

5. The vibration damping device for offshore wind turbine monopile foundation cages according to claim 4, characterized in that: The top of the protective box (41) is provided with a metal cover fixed by bolts. The interior of the protective box (41) is filled with air. The extension end of the waterproof hydraulic rod (42) is provided with a rubber sealing ring at the contact part with the side of the protective box (41).

6. The vibration damping device for offshore wind turbine monopile foundation cages according to claim 5, characterized in that: The push rod (44) consists of two metal rods of equal length. The two metal rods are fixed to the guide rod (43) by bolts and nuts. Each of the intelligent adjustment components (4) is located on an independent structure in the flow-breaking plate (1).

7. The vibration damping device for offshore wind turbine monopile foundation cages according to claim 6, characterized in that: The vibration damping component (6) includes a damping box (61) filled with liquid. Several damping plates (63) are equidistantly arranged inside the damping box (61). A transmission rod (64) is movably passed through the bottom of the damping box (61). The edge of the transmission rod (64) is connected to the damping box (61) through a rubber layer (65). The bottom of the transmission rod (64) is fixedly connected to the connecting rod (5) by bolts.

8. The vibration damping device for offshore wind turbine monopile foundations according to claim 7, characterized in that: The vibration damping assembly (6) also includes a cover plate (62) that is bolted to the top of the damping box (61), wherein the liquid level inside the damping box (61) is higher than the top of the transmission rod (64).

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