A vibration-damping and energy-dissipating anchor chain for floating offshore wind power structures and its application method

Abstract

This invention relates to the field of vibration reduction and control technology for offshore wind power structures, and discloses a vibration-damping and energy-dissipating anchor chain for floating offshore wind power structures and its usage method. The chain includes an anchor chain fixing ring installed on the tower body located on a floating platform; a vibration-damping assembly comprising several vibration-damping anchor heads and several flexible anchor chains, the tail ends of which are connected to the anchor chain fixing ring via the flexible anchor chains, and the head ends of which extend into the seabed foundation for anchoring and vibration-damping the tower; the floating platform is connected to a suction cylinder foundation within the seabed foundation via the flexible anchor chains; and an energy-dissipating assembly comprising several anchor chain energy-dissipating components installed on the flexible anchor chains for vibration-damping and energy dissipation. This invention features flexible arrangement, adjustability, and controllability, achieving vibration reduction and energy dissipation for floating offshore wind power structures, thereby extending the service life of offshore wind power structures.

Description

Technical Field

[0001] This invention relates to the field of vibration reduction and control technology for offshore wind power structures, and in particular to a vibration reduction and energy dissipation anchor chain for floating offshore wind power structures and its usage method. Background Technology

[0002] With the increasing consumption and demand for energy, energy issues have gradually become a prominent problem restricting social development. Offshore wind energy development and utilization is a crucial strategic support for accelerating energy transition, solving environmental pollution problems, and achieving the goals of "carbon peaking and carbon neutrality." Currently, offshore wind power construction is developing towards "larger scale," "deeper water," and "floating" structures, with increasingly taller towers and longer turbine blades, making the vibration response problem of wind turbine structures increasingly prominent. In recent years, incidents of shutdowns caused by excessive vibration have occurred repeatedly, seriously hindering the high-quality development of offshore wind power.

[0003] Currently, the mooring systems used in floating offshore wind turbine structures are mostly combinations of traditional anchor chains and suction cylinder foundations. When encountering extreme wind and wave loads, the anchor chains quickly tighten. While this provides load-bearing capacity for the floating platform and tower turbine structure, it severely lacks buffering, vibration reduction, and energy dissipation functions. The moment the anchor chains tighten, the turbine structure often experiences excessive instantaneous acceleration. Furthermore, the repeated tightening of the anchor chains over a long period leads to rapid accumulation of impact damage, making it difficult to guarantee the safety of offshore wind turbines during their 20-30 year service life. Therefore, there is an urgent need to provide new technical means for vibration control of floating offshore wind turbine structures.

[0004] Therefore, there is an urgent need for a vibration-damping and energy-dissipating anchor chain and its usage method for floating offshore wind power structures to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a vibration-damping and energy-dissipating anchor chain for floating offshore wind power structures and a method of using it, so as to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides a vibration-damping and energy-dissipating anchor chain for floating offshore wind power structures, comprising:

[0007] Anchor chain retaining rings are installed on the cylinder of the tower located on the floating platform;

[0008] The vibration damping assembly includes several vibration damping anchor heads and several flexible anchor chains. The tail end of the vibration damping anchor head is connected to the anchor chain fixing ring through the flexible anchor chain. The head end of the vibration damping anchor head extends into the seabed foundation for anchoring and damping the tower. The floating platform is connected to the suction cylinder foundation in the seabed foundation through the flexible anchor chain.

[0009] The energy dissipation assembly includes several anchor chain energy dissipation components, which are installed on the flexible anchor chain and used to reduce vibration and dissipate energy from the flexible anchor chain.

[0010] According to the present invention, a vibration-damping and energy-dissipating anchor chain for a floating offshore wind power structure is provided. The vibration-damping anchor head includes a cone head, a plurality of vibration-damping connectors, a plurality of hoop rings, and a plurality of pressure plates. Adjacent vibration-damping connectors are connected through the hoop rings. The vibration-damping connector at the front end is connected to the vibration-damping anchor head. The vibration-damping connector is connected to the pressure plates. The pressure plates are connected to the flexible anchor chain.

[0011] According to the present invention, a vibration damping and energy dissipation anchor chain for a floating offshore wind power structure is provided. The vibration damping connector includes a limiting inner tube. One end of a compression spring is fixedly connected to the outer wall of the limiting inner tube along the circumferential direction. The other end of the compression spring is fixedly connected to an arc-shaped outer plate. Adjacent arc-shaped outer plates are connected. The top and bottom ends of the arc-shaped outer plates are respectively fixedly connected to an upper connecting lug and a lower connecting lug. The upper connecting lug and the lower connecting lug on adjacent vibration damping connectors are connected by bolts. A hoop is located at the connection between the upper connecting lug and the lower connecting lug.

[0012] According to the present invention, a vibration damping and energy dissipation anchor chain for a floating offshore wind power structure is provided, wherein the energy dissipation component of the anchor chain includes a damping structure and a stiffness structure, and the damping structure is disposed on the stiffness structure;

[0013] The rigid structure includes two steel plates, which are respectively connected to two flexible anchor chains. The top and bottom of the two steel plates are provided with slide rails. A steel truss is slidably connected between the two slide rails. The two steel trusses are connected by bolts.

[0014] According to the present invention, a vibration damping and energy dissipation anchor chain for a floating offshore wind power structure is provided. The damping structure includes two rubber pads, which are respectively fixedly connected to two steel plates. A plurality of telescopic rods are fixedly connected between the two rubber pads, and telescopic springs are sleeved on the telescopic rods.

[0015] According to the present invention, a vibration-damping and energy-dissipating anchor chain for a floating offshore wind power structure is provided. The flexible anchor chain includes a connecting anchor chain and a pressure plate zipper. The anchor chain fixing ring, the lower connecting lug, and the steel plate are connected by the connecting anchor chain, and the pressure plate zipper is connected to the pressure plate.

[0016] According to the present invention, a vibration-damping and energy-dissipating anchor chain for a floating offshore wind power structure is provided, wherein a connecting ring is provided on the steel plate and the connecting ring is connected to the connecting anchor chain.

[0017] According to the present invention, a vibration-damping and energy-dissipating anchor chain for a floating offshore wind power structure is provided, wherein square holes are provided on both the limiting inner tube and the arc-shaped outer plate.

[0018] According to the present invention, a vibration damping and energy dissipation anchor chain for a floating offshore wind power structure is provided, wherein the arc-shaped outer plate and the hoop are provided with arc-shaped holes for the pressure plate to be inserted.

[0019] A method for using vibration-damping and energy-dissipating anchor chains for floating offshore wind power structures includes the following steps:

[0020] The floating platform is connected to the suction cylinder foundation within the seabed foundation via the flexible anchor chain;

[0021] Several of the vibration-damping anchor heads are thrown circumferentially along the tower to the seabed foundation surface, and the vibration-damping anchor heads are embedded in the seabed foundation by the flexible anchor chain that is stretched and connected.

[0022] Install several of the aforementioned anchor chain energy dissipation components on the flexible anchor chain;

[0023] The other end of the flexible anchor chain is installed on the anchor chain fixing ring, and the anchor chain fixing ring is installed on the tower.

[0024] Compared with the prior art, the present invention has the following advantages and technical effects:

[0025] This invention provides a vibration-damping and energy-dissipating anchor chain and its usage method for floating offshore wind power structures. The vibration-damping anchor head can deform to a certain extent both axially and longitudinally. Therefore, when encountering extreme environmental loads, when the energy-dissipating component of the anchor chain reaches its deformation limit, the gradual stretching of the vibration-damping anchor head increases the friction area with the foundation soil, further enhancing the vibration-damping effect. The energy-dissipating component of the anchor chain can undergo a certain degree of elastic deformation while ensuring strength. Therefore, when the environmental load is small and relatively stable, the energy-dissipating component of the anchor chain can effectively reduce the frequency and peak value of the dynamic load on the anchor chain and tower structure, reducing impact damage to the anchor chain and tower structure. The equipment of this invention does not need to be installed inside the tower, thus not occupying the limited space inside the tower. It features flexible arrangement, adjustability, and controllability. During the design and installation stages, the vibration-damping effect can be adjusted by changing the number, position, and spacing of the installations. During use, the anchor chain can be tightened or released via a power system, allowing for readjustment of the vibration-damping effect of the energy-dissipating component in any direction, thereby extending the service life of the offshore wind power structure. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall structure of the vibration-damping anchor head of the present invention;

[0029] Figure 3 This is a schematic diagram showing the disassembled state of the overall structure of the vibration-damping anchor head of the present invention;

[0030] Figure 4 This is a schematic diagram of the overall structure of the vibration damping connector of the present invention;

[0031] Figure 5 This is a schematic diagram showing the connection state of the upper connecting ear and the lower connecting ear of the present invention;

[0032] Figure 6 This is a schematic diagram of the overall structure of the anchor chain energy dissipation component of the present invention;

[0033] Figure 7 This is a schematic diagram of the overall structure of the damping structure of the present invention;

[0034] Figure 8 This is a schematic diagram of the overall structure of the stiffness structure of the present invention;

[0035] Among them, 1. Vibration-damping anchor head; 11. Conical head; 12. Vibration-damping connector; 121. Limiting inner tube; 122. Arc-shaped outer plate; 123. Compression spring; 124. Upper connecting ear; 125. Lower connecting ear; 126. Bolt; 127. Square hole; 128. Arc-shaped hole; 13. Hoop ring; 14. Pressure plate; 2. Flexible anchor chain; 21. Connecting anchor chain; 22. Pressure plate zipper; 3. Anchor chain energy dissipation component; 31. Damping structure; 311. Rubber pad; 312. Telescopic spring; 313. Telescopic rod; 32. Rigidity structure; 321. Steel plate; 322. Steel truss; 323. Screw; 324. Slide rail; 4. Anchor chain fixing ring; 5. Floating platform; 6. Tower; 7. Suction cylinder foundation. Detailed Implementation

[0036] 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.

[0037] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] Reference Figures 1-8 This invention provides a vibration-damping and energy-dissipating anchor chain for floating offshore wind power structures, comprising:

[0039] Anchor chain fixing ring 4 is installed on the cylinder body of the tower 6 located on the floating platform 5;

[0040] The vibration damping assembly includes several vibration damping anchor heads 1 and several flexible anchor chains 2. The tail end of the vibration damping anchor head 1 is connected to the anchor chain fixing ring 4 through the flexible anchor chain 2. The head end of the vibration damping anchor head 1 extends into the seabed foundation for anchoring and damping the tower 6. The floating platform 5 is connected to the suction cylinder foundation 7 in the seabed foundation through the flexible anchor chain 2.

[0041] The energy dissipation assembly includes several anchor chain energy dissipation components 3, which are installed on the flexible anchor chain 2 and are used to reduce vibration and dissipate energy in the flexible anchor chain 2.

[0042] In one embodiment of the present invention, the vibration-damping anchor head 1 can deform to a certain extent in both the axial and longitudinal directions. Therefore, when encountering extreme environmental loads, when the anchor chain energy dissipation component 3 reaches its deformation limit, the vibration-damping anchor head 1 can be gradually stretched to increase the mutual friction area with the foundation soil, thereby further enhancing the vibration reduction effect. Under the premise of ensuring strength, the anchor chain energy dissipation component 3 can undergo a certain degree of elastic deformation. Therefore, when the environmental load is small and relatively stable, the anchor chain energy dissipation component 3 can effectively reduce the frequency and peak value of the dynamic load on the anchor chain and tower structure, and reduce the impact damage to the anchor chain and tower structure. The equipment of the present invention does not need to be arranged inside the tower, and does not need to occupy the limited space inside the tower. It has the characteristics of flexible arrangement, adjustability and controllability. In the design and installation stage, the vibration reduction effect can be adjusted by adjusting the number, position and spacing of the installation. In the use stage, the anchor chain can be tightened or released through the power system, and the vibration reduction effect of the anchor chain energy dissipation component 3 in any direction can be readjusted, thereby extending the service life of the offshore wind power structure.

[0043] As an optional implementation, the vibration-damping anchor head 1 includes a cone head 11, a plurality of vibration-damping connectors 12, a plurality of hoop rings 13 and a plurality of pressure plates 14. Adjacent vibration-damping connectors 12 are connected by hoop rings 13. The vibration-damping connector 12 located at the front end is connected to the vibration-damping anchor head 1. The vibration-damping connector 12 is connected to the pressure plate 14. The pressure plate 14 is connected to the flexible anchor chain 2.

[0044] As an optional implementation, the vibration damping connector 12 includes a limiting inner tube 121. One end of a compression spring 123 is fixedly connected to the outer wall of the limiting inner tube 121 along the circumferential direction. The other end of the compression spring 123 is fixedly connected to an arc-shaped outer plate 122. Two adjacent arc-shaped outer plates 122 are connected. The top and bottom ends of the arc-shaped outer plates 122 are respectively fixedly connected to an upper connecting ear 124 and a lower connecting ear 125. The upper connecting ear 124 and the lower connecting ear 125 on two adjacent vibration damping connectors 12 are connected by bolts 126. A hoop 13 is located at the connection between the upper connecting ear 124 and the lower connecting ear 125.

[0045] Specifically, the vibration reduction principle of the vibration-damping anchor head 1 is as follows: the pressure plate 14 is slowly pulled out of the arc-shaped hole 128 by the pressure plate zipper 22, and the fixed constraint of the hoop 13 on the vibration-damping connector 12 is gradually released. The pressure plate 14 will spring outward under the action of the compression spring 123. The vibration-damping connector 12, which is freed from the fixed constraint, will have elastic deformation capability. It can consume vibration energy through the compression and rebound of the compression spring 123 and the mutual friction between the arc-shaped outer plate 122 and the foundation soil, thereby achieving the vibration reduction effect.

[0046] As an optional implementation, the anchor chain energy dissipation component 3 includes a damping structure 31 and a stiffness structure 32, with the damping structure 31 disposed on the stiffness structure 32.

[0047] The rigid structure 32 includes two steel plates 321, which are respectively connected to two flexible anchor chains 2. The top and bottom of the two side walls of the two steel plates 321 are provided with slide rails 324. A steel truss 322 is slidably connected between the two slide rails 324. The two steel trusses 322 are connected by bolts 323.

[0048] In one embodiment of the present invention, the steel truss 322 prevents the telescopic rod 313 and the telescopic spring 312 from being overstretched and breaking when the connecting anchor chain 21 is subjected to tensile load; and prevents the telescopic rod 313 and the telescopic spring 312 from being damaged by rapid contraction when the connecting anchor chain 21 is unloaded.

[0049] As an optional implementation, the damping structure 31 includes two rubber pads 311, which are fixedly connected to two steel plates 321 respectively. A plurality of telescopic rods 313 are fixedly connected between the two rubber pads 311, and telescopic springs 312 are sleeved on the telescopic rods 313.

[0050] In one embodiment of the present invention, when the connecting anchor chain is unloaded, the rubber pad 311 is used to absorb the released energy of the telescopic rod 313 and the telescopic spring 312 of the damping structure 31, thereby improving the service life of the anchor chain energy dissipation component 3.

[0051] Specifically, the vibration reduction principle of the anchor chain energy dissipation component 3 is as follows: when the connecting anchor chain 21 is subjected to tensile load, the steel truss 322 slides towards the center of the steel plate 321, and the telescopic rod 313 and telescopic spring 312 of the damping structure 31 undergo tensile deformation, which will slow down the tensioning speed of the connecting anchor chain 21 and reduce the impact damage to the connecting anchor chain 21; when the connecting anchor chain 21 is unloaded, the steel truss 322 slides towards the edge of the steel plate 321, and the telescopic rod 313 and telescopic spring 312 of the damping structure 31 contract, which will reduce the relaxation speed of the connecting anchor chain 21.

[0052] As an optional implementation, the flexible anchor chain 2 includes a connecting anchor chain 21 and a pressure plate zipper 22. The anchor chain fixing ring 4, the lower connecting lug 125 and the steel plate 321 are connected by the connecting anchor chain 21, and the pressure plate zipper 22 is connected to the pressure plate 14.

[0053] In one embodiment of the present invention, the connecting anchor chain 21 is used to connect the vibration damping anchor head 1, the anchor chain energy dissipation component 3 and the tower 6, and also serves to transfer dynamic loads among the three; the pressure plate zipper 22 is only used to pull the pressure plate 14 and does not serve to bear dynamic loads, and its tensile strength may be less than that of the connecting anchor chain 21.

[0054] As an optional implementation, a connecting ring is provided on the steel plate 321, and the connecting ring is connected to the connecting anchor chain 21.

[0055] In one embodiment of the present invention, holes are provided on both the rubber pad 311 and the steel plate 321 for installing a connecting ring, which is used to connect with the connecting anchor chain 21.

[0056] As an optional implementation, both the inner limiting tube 121 and the arc-shaped outer plate 122 are provided with square holes 127.

[0057] In one embodiment of the present invention, square holes 127 are provided on both the inner limiting tube 121 and the arc-shaped outer plate 122 to facilitate the entry of seawater and seabed foundation soil.

[0058] As an optional implementation, both the arc-shaped outer plate 122 and the hoop 13 are provided with arc-shaped holes 128 for inserting the pressure plate 14.

[0059] In one embodiment of the present invention, the arc-shaped hole 128 facilitates the passage of the pressure plate 14.

[0060] A method for using vibration-damping and energy-dissipating anchor chains for floating offshore wind power structures includes the following steps:

[0061] The floating platform 5 is connected to the suction cylinder foundation 7 in the seabed foundation via flexible anchor chain 2;

[0062] Several vibration-damping anchor heads 1 are thrown around the tower 6 to the seabed foundation surface, and the vibration-damping anchor heads 1 are embedded into the seabed foundation by the flexible anchor chain 2 that is stretched and connected.

[0063] Install several anchor chain energy dissipation components 3 on the flexible anchor chain 2;

[0064] Install the other end of the flexible anchor chain 2 onto the anchor chain fixing ring 4, and install the anchor chain fixing ring 4 onto the tower 6.

[0065] In one embodiment of the present invention, during use, the vibration-damping anchor head 1 is first fabricated, and the pressure plate 14 is passed through the arc-shaped hole 128 of the vibration-damping connector 12 and the hoop 13 to pre-compress the multiple sets of compression springs 123 inside the vibration-damping anchor head 1. The energy dissipation component 3 of the anchor chain is fabricated, and the vertical distance between the steel plates 321 is controlled by the steel truss 322 so that the distance between the steel plates 321 is slightly greater than the natural length of the telescopic springs 312 and the telescopic rods 313 to pre-tension the multiple sets of telescopic springs 312 inside the energy dissipation component 3. The vibration-damping anchor head 1 and the energy dissipation component 3 of the anchor chain are connected with the anchor chain and transported to the site.

[0066] The vibration damping anchor head 1 is thrown onto the seabed foundation surface surrounding the floating offshore wind turbine. The anchor chain is wrapped around the tower 6. The connecting anchor chain 21 is continuously stretched by the power system until the vibration damping anchor head 1 is completely embedded into the seabed foundation. The anchor chain is then fixed to the tower 6 using the anchor chain fixing ring 4.

[0067] Repeat the above steps to gradually install vibration-damping and energy-dissipating anchor chains in a fan shape around the floating offshore wind turbine until the maximum acceleration and other dynamic indicators of the floating offshore wind turbine meet the requirements during normal operation and power generation, at which point the installation of vibration-damping and energy-dissipating anchor chains is stopped.

[0068] When the floating offshore wind power structure encounters extreme wind and wave loads, when all anchor chain energy dissipation components 3 reach their energy dissipation limits, the anchor chain fixing ring 4 is released from fixing the pressure plate zipper 22. The power system stretches the pressure plate zipper 22 and the pressure plate 14, causing the vibration damping connector 12 to gradually open and play a role in vibration damping and energy dissipation.

[0069] After the extreme wind and wave load has passed, the tension state of the internal telescopic spring 312 of the anchor chain energy dissipation component 3 is adjusted by stretching or releasing the anchor chain through the power system, in preparation for the next extreme wind and wave load.

[0070] Overall principle of the invention:

[0071] The vibration reduction principle of the vibration-damping anchor head 1 is as follows: the pressure plate 14 is slowly pulled out of the arc-shaped hole 128 by the pressure plate zipper 22, and the fixed constraint of the hoop 13 on the vibration-damping connector 12 is gradually released. The pressure plate 14 will spring outward under the action of the compression spring 123. The vibration-damping connector 12, which is freed from the fixed constraint, will have elastic deformation capability. It can consume vibration energy through the compression and rebound of the compression spring 123 and the mutual friction between the arc-shaped outer plate 122 and the foundation soil, thereby achieving the vibration reduction effect.

[0072] The vibration reduction principle of the anchor chain energy dissipation component 3 is as follows: When the connecting anchor chain 21 is subjected to tensile load, the steel truss 322 slides towards the center of the steel plate 321, and the telescopic rod 313 and telescopic spring 312 of the damping structure 31 undergo tensile deformation, which will slow down the tensioning speed of the connecting anchor chain 21 and reduce the impact damage to the connecting anchor chain 21; when the connecting anchor chain 21 is unloaded, the steel truss 322 slides towards the edge of the steel plate 321, and the telescopic rod 313 and telescopic spring 312 of the damping structure 31 contract, which will reduce the relaxation speed of the connecting anchor chain 21.

[0073] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0074] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A vibration-damping and energy-dissipating anchor chain for floating offshore wind power structures, characterized in that, include: Anchor chain fixing ring (4) is installed on the cylinder body of the tower (6) located on the floating platform (5); The vibration damping assembly includes several vibration damping anchor heads (1) and several flexible anchor chains (2). The tail end of the vibration damping anchor head (1) is connected to the anchor chain fixing ring (4) through the flexible anchor chain (2). The head end of the vibration damping anchor head (1) extends into the seabed foundation for anchoring and damping the tower (6). The floating platform (5) is connected to the suction cylinder foundation (7) in the seabed foundation through the flexible anchor chain (2). The energy dissipation component includes several anchor chain energy dissipation components (3), which are installed on the flexible anchor chain (2) and are used to reduce vibration and dissipate energy of the flexible anchor chain (2). The vibration-damping anchor head (1) includes a cone head (11), several vibration-damping connectors (12), several hoop rings (13), and several pressure plates (14). Adjacent vibration-damping connectors (12) are connected by the hoop rings (13). The vibration-damping connector (12) at the front end is connected to the vibration-damping anchor head (1). The vibration-damping connector (12) is connected to the pressure plate (14). The pressure plate (14) is connected to the flexible anchor chain (2). The vibration-damping connector (12) includes a limiting inner tube (121). The outer wall of the limiting inner tube (121) is fixedly connected along the circumferential direction. One end of the compression spring (123) is connected to the other end of the compression spring (123), and the other end of the compression spring (123) is fixedly connected to the arc-shaped outer plate (122). The two adjacent arc-shaped outer plates (122) are connected. The top and bottom ends of the arc-shaped outer plates (122) are respectively fixedly connected to the upper connecting ear (124) and the lower connecting ear (125). The upper connecting ear (124) and the lower connecting ear (125) on the two adjacent vibration damping connectors (12) are connected by bolts (126). The hoop (13) is located at the connection between the upper connecting ear (124) and the lower connecting ear (125).

2. The vibration-damping and energy-dissipating anchor chain for floating offshore wind power structures according to claim 1, characterized in that: The anchor chain energy dissipation component (3) includes a damping structure (31) and a stiffness structure (32), wherein the damping structure (31) is disposed on the stiffness structure (32); The rigid structure (32) includes two steel plates (321), which are respectively connected to two flexible anchor chains (2). The top and bottom of the two steel plates (321) are provided with slide rails (324) and steel trusses (322) are slidably connected between the two slide rails (324). The two steel trusses (322) are connected by screws (323).

3. The vibration-damping and energy-dissipating anchor chain for floating offshore wind power structures according to claim 2, characterized in that: The damping structure (31) includes two rubber pads (311), which are fixedly connected to the two steel plates (321) respectively. A plurality of telescopic rods (313) are fixedly connected between the two rubber pads (311), and a telescopic spring (312) is sleeved on the telescopic rods (313).

4. The vibration-damping and energy-dissipating anchor chain for floating offshore wind power structures according to claim 3, characterized in that: The flexible anchor chain (2) includes a connecting anchor chain (21) and a pressure plate zipper (22). The anchor chain fixing ring (4), the lower connecting lug (125) and the steel plate (321) are connected by the connecting anchor chain (21), and the pressure plate zipper (22) is connected to the pressure plate (14).

5. The vibration-damping and energy-dissipating anchor chain for floating offshore wind power structures according to claim 4, characterized in that: A connecting ring is provided on the steel plate (321), and the connecting ring is connected to the connecting anchor chain (21).

6. The vibration-damping and energy-dissipating anchor chain for floating offshore wind power structures according to claim 1, characterized in that: Both the limiting inner tube (121) and the arc-shaped outer plate (122) are provided with square holes (127).

7. The vibration-damping and energy-dissipating anchor chain for floating offshore wind power structures according to claim 1, characterized in that: Both the arc-shaped outer plate (122) and the hoop (13) are provided with arc-shaped holes (128) for passing through the pressure plate (14).

8. A method of using a vibration-damping and energy-dissipating anchor chain for a floating offshore wind power structure, applicable to the vibration-damping and energy-dissipating anchor chain for a floating offshore wind power structure as described in claim 1, characterized in that... Includes the following steps: The floating platform (5) is connected to the suction cylinder foundation (7) in the seabed foundation via the flexible anchor chain (2); Several vibration-damping anchor heads (1) are thrown circumferentially along the tower (6) to the seabed foundation surface, and the vibration-damping anchor heads (1) are embedded in the seabed foundation by the flexible anchor chain (2) that is stretched and connected. Install several of the anchor chain energy dissipation components (3) on the flexible anchor chain (2); Install the other end of the flexible anchor chain (2) on the anchor chain fixing ring (4), and install the anchor chain fixing ring (4) on the tower (6).

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