Horizontal omnidirectional self-adaptive inertar vibration control system and bionic wind power tower

Abstract

The present invention discloses a horizontal omnidirectional self-adaptive inert vibration damping system and a bionic wind turbine tower. The vibration damping system comprises a plurality of mass blocks, a sleeve fixed below the mass blocks, a pair of guide rods slidable relative to the sleeve provided at both ends of the sleeve, the outer ends of the two guide rods slidably mounted on a first circular slide rail on the inner wall of the wind turbine tower, a disc spring fitted to the outside of the sleeve, one end located inside the sleeve being interlocked via a first gear transmission unit, the first gear transmission unit connected to a first inert flywheel provided inside the sleeve, a second gear transmission unit provided above the mass blocks perpendicular to the guide rods, a bracket provided below the sleeve perpendicular to the guide rods, the bracket slidably mounted on a second circular slide rail on the inner wall of the wind turbine tower, the sleeve slidably mounted on the bracket, and the second gear transmission unit connected to a second inert flywheel provided on the bracket. This invention can improve the adaptability and vibration control performance of highly flexible wind turbine towers to complex multi-directional wind-induced vibrations and seismic vibrations.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering structure vibration control, and particularly to a horizontal omnidirectional self-adaptive inerter vibration control system and a bio-inspired wind power tower.

Background Art

[0002] Energy infrastructure occupies a core position in new infrastructure. As a major energy source, wind power generation is gradually becoming larger in scale. With the increase in the single-unit capacity, the requirements for the height of the tower are increasing. As a result, the natural frequency of the tower structure decreases, and it is easy to resonate with the vibrations caused by wind loads and earthquakes. The means of increasing the material usage and reducing the energy consumption by the structure itself is not only uneconomical but may also change the dynamic characteristics of the structure. Under extreme loads, fatigue damage, concrete cracking, and ultimately overall instability are likely to occur. On the other hand, the existing tuned mass damper vibration control technology is sensitive to frequency and wind direction and has the drawback of high maintenance costs in remote areas.

Summary of the Invention

Problems to be Solved by the Invention

[0003] An object of the present invention is to provide a horizontal omnidirectional self-adaptive inerter vibration control system that can improve the adaptability and vibration control performance of a highly flexible wind power tower against complex multi-directional wind-induced vibrations and seismic vibrations, and reduce structural fatigue damage and maintenance costs. Another object of the present invention is to provide a bio-inspired wind power tower.

Means for Solving the Problems

[0004] The horizontal omnidirectional self-adaptive inertia vibration damping system described in the present invention comprises a plurality of parallel mass blocks, a plurality of first inertia mechanisms connected to each mass block along the parallel direction, and a second inertia mechanism connected to the mass block along a direction perpendicular to the parallel direction, wherein the first inertia mechanism includes a sleeve fixed below the mass block, and a pair of guide rods provided at both ends of the sleeve and slidable relative to the sleeve, wherein disc springs are fitted onto the portions of the two guide rods located outside the sleeve, the disc springs are fitted between the outer projections of the guide rods and the outer wall of the sleeve, and the outer ends of the guide rods The second inert mechanism includes a bracket perpendicular to the direction of the guide rods, which is slidably mounted on a first circular slide rail on the inner wall of the wind turbine tower. The mass block and sleeve are slidably mounted on the bracket, and the second gear transmission unit connected to the mass block is connected to a second inert flywheel mounted on the bracket.

[0005] Preferably, the first gear transmission unit includes at least two first racks provided at one end of one guide rod and at least one second rack provided at one end of the other guide rod, wherein the first and second racks are inserted through each other from opposite directions and meshed together via a first gear, and the first gear and the first inert flywheel are coaxially connected.

[0006] Preferably, the second gear transmission unit includes a third rack connected to a connecting rod provided above all mass blocks, and a second gear connected coaxially with a second inert flywheel, wherein the third rack is meshed with the second gear.

[0007] Preferably, the disc springs are a group of variable-stiffness disc springs.

[0008] Preferably, the sleeve is provided on the bracket via a sliding regulating rod, the bracket has elongated horizontal holes on opposing longitudinal sides, the sleeve has through holes on corresponding sides, and the sliding regulating rod is slidably connected to the bracket by passing through the through holes on the sides of the sleeve and the elongated holes in the bracket.

[0009] The bionic wind power tower according to the present invention is equipped with the above-mentioned horizontal omnidirectional self-adaptive inertar vibration damping system, the vibration damping system being provided at the top of the wind power tower and / or at the inter-segment connection of the tower unit.

[0010] Preferably, the system further comprises a plurality of coaxial conical tower units connected by a self-resetting connection assembly.

[0011] Preferably, the tower unit includes a bionic steel pipe bundle consisting of an outer steel pipe, an inner steel pipe, and a plurality of core tubes, wherein the outer steel pipe is fitted coaxially with the inner steel pipe, the plurality of core tubes are uniformly arranged between the outer and inner steel pipes, and concrete is uniformly filled between the outer and inner steel pipes and inside the bionic steel pipe bundle.

[0012] Preferably, the self-resetting connection assembly includes an annular plate, a variable friction connection plate, and a self-resetting bolt washer, wherein the annular plate is provided on the connecting end face of adjacent tower units, connected on the inside by bolts and self-resetting bolt washers, and connected on the outside of the tower units by the variable friction connection plate.

[0013] Preferably, the variable friction connection plate includes a first friction plate and a second friction plate, the first friction plates being arranged in pairs and each provided on the outer connection portion of an adjacent tower unit, the second friction plate being connected to a pair of first friction plates, and the opposing sides of the first and second friction plates being provided with a plurality of interlocking friction keys. [Effects of the Invention]

[0014] Compared to conventional technology, the present invention has the following remarkable advantages. First, the horizontal omnidirectional self-adaptive inertar vibration control system according to the present invention can operate in any direction in the horizontal plane, reducing the sensitivity of the vibration control system to wind direction and frequency. Furthermore, when moving in any direction, the inertar flywheel can be driven to rotate at high speed via the guide rod and rack, increasing the apparent mass of the vibration control system, generating a large inertial force, and feeding it back to the tower. This significantly reduces the counterweight required for the vibration control system, as well as reducing structural fatigue damage and maintenance costs. Second, in the bionic tower unit, the outer steel pipes mainly bear unidirectional tensile, compressive, and shear stresses, while the individual steel pipe bundles and inner steel pipes, together with lightweight concrete, form a porous structure that bears complex multidirectional stresses and has an energy absorption effect. At the same time, by reducing the weight of the tower, the wind power tower has mechanical properties such as being lightweight, high strength, and high toughness. [Brief explanation of the drawing]

[0015] [Figure 1] This is a schematic diagram showing the overall structure of the present invention. [Figure 2] This is a schematic diagram of the structure of the tower unit of the present invention. [Figure 3] This is a cross-sectional view of the tower unit of the present invention. [Figure 4] This is a schematic diagram of the structure of the self-returning connection assembly of the present invention. [Figure 5] This is a schematic diagram of the self-returning bolt washer of the present invention. [Figure 6] It is a structural schematic diagram of the variable friction connection plate of the present invention. FIG. 6(a) is the first friction plate, and FIG. 6(b) is the second friction plate. [Figure 7] It is a structural schematic diagram of the horizontal omnidirectional self-adaptive inerter vibration control system of the present invention. [Figure 8] It is a cross-sectional view of the first inerter mechanism of the present invention. [Figure 9] It is a cross-sectional view of the second inerter mechanism of the present invention. [Figure 10] It is a structural schematic diagram of the variable stiffness disc spring group of the present invention. [Figure 11] It is a stress analysis diagram of the omnidirectional self-adaptive inerter vibration control system of the present invention.

Embodiments for Carrying out the Invention

[0016] Hereinafter, the technical solution of the present invention will be further described with reference to the drawings.

[0017] As shown in Figures 1 and 7-11, the horizontal omnidirectional self-adaptive inertar vibration damping system described in the present invention is a distributed inertar tuned mass damping system 3, which is provided at the top of a wind turbine tower and / or at the inter-segment connection of a tower unit 1, and comprises a plurality of parallel mass blocks 3-1, a plurality of parallel first inertar mechanisms connected to each mass block along the parallel direction, and a second inertar mechanism connected to the mass blocks along a direction perpendicular to the parallel direction. The first inertar mechanism includes a sleeve 3-2 fixed below the mass block, and a pair of opposing guide rods 3-3 provided at both ends of the sleeve, the two guide rods and the sleeve being slidable relative to each other, and rollers 3-10 provided at the outer ends of the two guide rods, the rollers 3-10 connected to a first circular slide rail 3-10a provided on the inner wall of the tower. Each of the two guide rods has at least two first racks 3-3a and at least one second rack 3-3b at one end located within the sleeve. The first racks 3-3a and 2 racks 3-3b are inserted through each other from opposite directions and mesh together via a first gear 3-5. The first gear 3-5 and the first inert flywheel 3-4, located within the sleeve 3-2, are coaxially connected. This allows for the conversion of the linear motion of the guide rods into the rotational motion of the first gear 3-5 and the first inert flywheel 3-4, facilitating motion transmission and inertial energy storage. Disc springs are provided on the portions of the two guide rods located outside the sleeve. The disc springs are fitted between the outer projections of the guide rods and the outer wall of the sleeves and compress or recoil as the mass block and sleeve slide. The first inert mechanism is arranged symmetrically around the axis of the guide rods.

[0018] Preferably, two first racks 3-3a are provided at one end located within the sleeve on one guide rod, and one second rack 3-3b is provided at one end located within the sleeve on the other guide rod. The two first racks 3-3a and the one second rack 3-3b mesh with two first gears 3-5 respectively, and each first gear 3-5 is coaxially connected to one first inertia flywheel 3-4.

[0019] Preferably, a variable stiffness disc spring group 3-9 is adopted for the disc spring. In order to realize a stepwise stiffness increasing characteristic, the variable stiffness disc spring group 3-9 is assembled by the following method. A plurality of sets of disc spring plates with the same inner diameter but different thicknesses, outer diameters and tapers are selected and coaxially overlapped according to a predetermined combination order and direction. Specifically, thin or standard disc springs 3-9a with relatively low stiffness and allowing a relatively large deformation amount are placed at both ends of the spring group, and thick or reinforced disc springs 3-9b with relatively high stiffness and large load-bearing capacity are placed in the center of the spring group. By providing a spacer 3-9c between each set of disc springs, the initial gap and the interaction relationship can be controlled, as shown in Fig. 10. During assembly, by applying an initial tightening force, each layer of disc spring is brought into a closely adhered state partially compressed in the initial state. When the variable stiffness disc spring group 3-9 is compressed, first the thin or standard disc spring 3-9a is deformed to provide a flexible initial stiffness stage. As the displacement increases, the thin or standard disc spring 3-9a is gradually compressed, and the thick or reinforced disc spring 3-9b begins to dominate the load-bearing capacity, causing the stiffness to increase significantly, thereby realizing a smoothly transitioning stepwise stiffness increasing characteristic. In this assembly method, by adjusting the parameters, overlapping order and tightening force of the disc springs, the inflection point and amplitude of the stiffness curve can be precisely designed to meet the performance requirements of different vibration damping stages.

[0020] The second inertia mechanism includes a bracket 3-12 and a third rack 3-8 perpendicular to the direction of the guide rod 3-3, the bracket 3-12 being located below the sleeve 3-2 and having a roller at its bottom, the roller being slidably connected to a second circular slide rail 3-12a provided on the tower unit. The mass block 3-1 is provided on the bracket 3-12 together with the sleeve 3-2 via a sliding regulating rod 3-11. The bracket 3-12 has horizontally elongated holes on opposing longitudinal sides, the sleeve 3-2 has through holes on corresponding sides, and the sliding regulating rod 3-11 is slidably connected to the bracket by passing through the through holes on the sides of the sleeve 3-2 and the elongated holes in the bracket 3-12. The third rack 3-8 is mounted on a connecting rod 3-13 located above each mass block 3-1, and the third rack 3-8 meshes with the second gear 3-7, the second gear 3-7 is coaxially connected to the second inert flywheel 3-6, and the second inert flywheel is mounted on a bracket 3-12, as shown in Figure 9.

[0021] Preferably, the tower unit changes in a gradient from the outside to the inside, the first circular slide rail 3-10a is provided on the side of the inner steel pipe, and the second circular slide rail 3-12a is provided on the upper part of the second annular plate (2-1b) welded to the top of the tower unit.

[0022] The horizontal omnidirectional self-adaptive inertar vibration control system described in the present invention achieves highly adaptable, highly efficient, and low-counterweight vibration control against the complex and multidirectional vibrations of highly flexible wind turbine towers by organically combining an omnidirectional track guide, the cooperation of a two-stage orthogonal inertar, and a variable stiffness spring. As shown in Figure 11, the specific operating principle and advantages are as follows.

[0023] (1) Omnidirectional self-adaptive startup: When the wind turbine tower vibrates due to the action of a wind load F(t) in any direction, the mass block 3-1 attached to the two circular slide rails can slide freely along the tangential direction of the slide rails by the drive of inertial force, thereby ensuring that the system can start up immediately in any wind direction and participate in vibration damping.

[0024] (2) Two-stage inertial cooperative enhancement: The sliding motion of mass block 3-1 can be decomposed into two mutually orthogonal components.

[0025] A. Component along the axial direction of guide rod 3-3: The guide rod compresses the variable stiffness disc spring group 3-9, driving the first gear rack transmission unit, i.e., the first rack 3-3a and the second rack 3-3b rotate the first gear 3-5, thereby rapidly rotating the first inert flywheel 3-4, and the first inert force f in1 This will cause it to occur.

[0026] B. Component perpendicular to the axial direction of the guide rod (i.e., along the sliding direction of bracket 3-12): Drives the second gear transmission unit by the connecting rod 3-13 and the third rack 3-8, driving the second inert flywheel 3-6 to high-speed rotation, and the second inert force f in2 This will cause it to occur.

[0027] Therefore, regardless of wind direction, the sliding of the mass block can simultaneously and proportionally activate two orthogonally arranged inertia mechanisms, forming a cooperative two-stage inertia mechanism. Total inertia force f in =f in1 +f in2 That is the case.

[0028] (3) Realization of high-efficiency vibration damping with low counterweight: The total inert force generated by the high-speed rotation of the two inert flywheels is fed back to the tower structure via the transmission mechanism, achieving a vibration damping effect similar to that when the counterweight of mass block 3-1 is increased. In achieving equivalent vibration damping performance, the present invention can significantly reduce the counterweight of the mass block that is actually required, thereby reducing the additional load on the tower structure and solving the problem that conventional synchronized mass dampers have high requirements for counterweight and are difficult to place at the top of the tower.

[0029] (4) Cooperation of stiffness and damping: The variable stiffness disc spring group 3-9 provides a nonlinear restoring force, which, in conjunction with the system's damping, works with the inertia force to dissipate vibration energy, effectively suppressing the tower's power response and expanding the vibration damping frequency band.

[0030] This invention achieves cooperative enhancement of the system's vibration damping performance and adaptability by providing two inertia mechanisms, resulting in differentiated transmission paths and mechanical roles. Its beneficial effects are primarily as follows: Firstly, it realizes a stepped inertia, improving energy absorption capacity. The first inertia flywheel 3-4 directly responds to the lateral displacement component during the sliding of the mass block via the guide rod 3-3 and gear rack mechanism, while the second inertia flywheel 3-6 responds to the inertial component in the direction of motion via the connecting rod 3-13 and third rack 3-8, forming a two-stage inertia mechanism with "local response + overall response," expanding the range of kinetic energy that the system can store and convert. Secondly, it enhances the system's robustness and adapts to broadband vibrations. The two inertia mechanisms have different power response characteristics, each capable of operating efficiently in the local high-frequency range and the overall low-frequency range, respectively, thereby allowing the system to maintain the inertia effect across a wide frequency band. Thirdly, it reduces the requirements for actual counterweights. The two inertia mechanisms work together to generate a larger apparent inertial force, achieving excellent vibration damping without significantly increasing the actual mass, and reducing the additional load on the tower structure. Fourthly, it improves the omnidirectional self-adaptability. The two inertia mechanisms respond to motion components in different directions, ensuring that the system can start up efficiently in all wind directions. In terms of cooperation, the two mechanisms form a triple-cooperative mechanism of stiffness-inertia-damping through the complementarity of their mechanical paths, the difference in their temporal responses, the superposition of inertia forces, and the stiff coupling with the composite disc spring. This not only smoothly outputs the inertia force and suppresses excessive displacement, but also significantly expands the system's effective vibration damping frequency band and enhances adaptability to various wind conditions. Through the design of the two inertia mechanisms, the system constructs a multi-stage, multi-path, adaptively coupled inertia network, achieving low counterweight, high-efficiency, omnidirectional self-adaptive control against the three-dimensional vibrations of the wind turbine tower.

[0031] The wind power tower comprises a plurality of coaxial conical tower units connected by a self-resetting connection assembly, and a horizontal omnidirectional self-adaptive inerta vibration control system provided at the top of the tower or at the inter-segment connection of the tower units.

[0032] The tower unit 1 includes a bionic steel pipe bundle consisting of an outer steel pipe 1-1, an inner steel pipe 1-2, and a plurality of core tubes 1-3. The core tubes are preferably steel pipes. The outer steel pipe 1-1 is fitted coaxially with the inner steel pipe 1-2, and the plurality of core tubes 1-3 are uniformly arranged between the outer steel pipe 1-1 and the inner steel pipe 1-2. The three constitute the main load-bearing frame, as shown in Figures 2 and 3. The inner wall of the inner steel pipe 1-2 is provided with a plurality of first reinforcing ribs 1-2a in the axial direction to prevent inward buckling, and the plurality of first reinforcing ribs 1-2a are arranged radially around the inner wall of the inner steel pipe. The outer wall of the end connection portion of the core tube 1-3 is provided with a second reinforcing rib 1-3a to facilitate end connection.

[0033] Concrete, preferably lightweight concrete, is uniformly filled between the outer steel pipe 1-1 and the inner steel pipe 1-2, and inside the bionic steel pipe bundle. The outer steel pipe 1-1 provides strong and uniform circumferential restraint to the bionic steel pipe bundle and lightweight concrete 1-4, while the lightweight concrete 1-4 provides support and energy absorption, effectively transferring the load between each steel pipe. Under horizontal loads, the "column group effect" of the bionic steel pipe bundle can reduce the influence of the shear force transmission path between each steel pipe, thereby allowing the inner steel pipes to concentrate on bearing the axial force. Furthermore, since the bionic steel pipe bundle includes multiple independent core tubes 1-3, even if one core tube 1-3 yields or locally buckles due to a defect, the load can be redistributed through the concrete to the other core tubes and restrained concrete, thereby avoiding sudden brittle fracture.

[0034] The self-returning connection assembly 2 is used to connect to an adjacent tower unit 1 and includes an annular plate 2-1, a self-returning bolt washer 2-2, and a variable friction connection plate 2-3, as shown in Figure 4.

[0035] The annular plate 2-1 includes a first annular plate 2-1a and a second annular plate 2-1b. The first annular plate 2-1a is located at the bottom of the previous tower unit 1 and is integrally welded to the ends of the outer steel pipe 1-1 and the inner steel pipe 1-2, while simultaneously fixing the bionic steel pipe bundle to the first annular plate 2-1a via a second reinforcing rib 1-3a. The second annular plate 2-1b is welded to the tops of the outer steel pipe 1-1 and the inner steel pipe 1-2 in the next tower unit. The annular plates are preferably made of steel.

[0036] The inner circumference of the annular plate 2-1 is connected by a plurality of uniformly arranged self-resetting bolt washers 2-2 and bolts, which can form a rigidity-reinforced region at the segment-to-segment connection of the tower unit, effectively suppressing local buckling of the outer steel pipe 1-1 and inner steel pipe 1-2, and can also function as a mounting platform for a vibration damping system. The self-resetting bolt washers 2-2 include a fitted cover plate 2-2a and a base 2-2b, which are arranged in pairs and are slidable relative to each other. The bolts pass through the first annular plate 2-1a and the second annular plate 2-1b, as well as the fitted cover plate 2-2a and base 2-2b, and are then tightened with nuts to connect the annular plates. The mutual contact portions of the cover plate 2-2a and base 2-2b each include an inclined surface structure capable of providing a self-resetting force, preferably an inclined surface projection and an inclined surface groove, as shown in Figure 5.

[0037] The variable friction connection plate 2-3 includes a first friction plate 2-3a and a second friction plate 2-3b. The first friction plates 2-3a are arranged in pairs and each is provided on the outer connection portion of the outer steel pipe of an adjacent tower unit, and each has a plurality of bolt holes. The second friction plate 2-3b is covered by the two first friction plates 2-3a and has a plurality of elongated holes, thereby facilitating the fastening of bolts through the elongated holes and fastening them without affecting the relative deformation of the first friction plates 2-3a and the second friction plates 2-3b. The opposing sides of the first friction plate 2-3a and the second friction plate 2-3b are provided with a plurality of interlocking friction keys, both of which include an inclined surface structure, preferably a toothed interlocking structure, capable of providing a self-restoring force, as shown in Figure 6.

[0038] The connection of adjacent tower units 1 includes external and internal connections. The external connection is achieved by connecting the outer steel pipes 1-1 of adjacent tower units with variable friction connection plates 2-3. The internal connection is achieved by connecting the inner circumferences of the second annular plate 2-1b of the lower tower unit and the first annular plate 2-1a of the upper tower unit with bolts and self-resetting bolt washers. When a horizontal load is applied to tower unit 1, the self-resetting bolt washers 2-2 are compressed, and the inclined surface structure of the cover plate 2-2a and base 2-2b allows for restoration and the dissipation of frictional energy. The first friction plates 2-3a are arranged in pairs and welded to the ends of the outer steel pipes 1-1 of adjacent tower units. The second friction plate 2-3b is provided outside the first friction plate 2-3a and, after tooth-shaped fitting with the first friction plate 2-3a, is connected with bolts and self-resetting bolt washers 2-2. After the first friction plate 2-3a and the second friction plate 2-3b deform relative to each other, the friction key consumes energy by sliding relative to each other. The inclined surface structure of the self-resetting bolt washer 2-2 provides a self-resetting force.

[0039] The support structure of the present invention is a lightweight and high-strength bionic tower unit, which is composed of an outer steel pipe, an inner steel pipe, a bionic steel pipe bundle, and filling concrete, forming the load-bearing foundation of the vibration damping system. The tower units are connected to each other by a self-resetting connection assembly. This connection assembly integrates an annular plate, a self-resetting bolt washer with an inclined surface, and a variable friction connection plate with a friction key, achieving integrated energy consumption and restorative function of the structure. Finally, with respect to the core vibration damping mechanism, the present invention has three innovative structures. First, it employs multiple dispersed inerta subsystems, and at the same height level, each subsystem drives a guide rod by the sliding of a mass block, forming a first inerta mass together with a first inerta flywheel in a sleeve, and forming a second inerta mass together with a second inerta flywheel via an interlocking third rack, thereby forming a two-stage inerta mechanism, and the vibration damping system can be placed between segments of each tower unit at different height levels, thereby forming a low-counterweight, highly efficient inerta vibration damping system. Secondly, by providing a composite disc spring on the guide rod, a gradually increasing stiffness characteristic is formed, achieving a stepwise stiffness response and expanding the vibration damping frequency band. Thirdly, the omnidirectional circular track guide enables self-adaptive starting and motion in any wind direction. The present invention can more effectively suppress the complex wind vibration response of wind power towers, reduce the requirements for counterweights, extend the service life of the structure, and address the needs of installation and maintenance in remote areas. [Explanation of symbols]

[0040] 1 Tower Unit 1-1 Outer steel pipe 1-2 Inner steel pipe 1-2a First reinforcing rib 1-3 Core Tube 1-3a Second reinforcing rib 1-4 Lightweight concrete 2 Self-resetting connection assembly 2-1 Ring Plate 2-1a First annular plate 2-1b Second annular plate 2-2 Self-resetting bolt washer 2-2a Cover plate 2-2b Bass 2-3 Variable friction connection plate 2-3a First friction plate 2-3b Second friction plate 3. Dispersed Inertia Synchronized Mass Attenuation System 3-1 Mass Block 3-2 Sleeves 3-3 Guide Rod 3-3a Rack 1 3-3b Rack 2 3-4 First Inert Flywheel 3-5 First Gear 3-6 Second Inert Flywheel 3-7 Second Gear 3-8 Rack 3 3-9 Variable Stiffness Disc Spring Group 3-9a Thin-walled or standard disc spring 3-9b Thick-walled or reinforced disc springs 3-9c Spacer 3-10 Laura 3-10a First circular slide rail 3-11 Sliding Regulating Rod 3-12 bracket 3-12a Second circular slide rail 3-13 Connecting Rod

Claims

1. A horizontal, omnidirectional, self-adaptive inertar vibration control system, The wind turbine comprises a plurality of parallel mass blocks (3-1), a plurality of first inert mechanisms connected to each mass block (3-1) along the parallel direction, and a second inert mechanism connected to the mass blocks (3-1) along the direction perpendicular to the parallel direction, wherein the first inert mechanism includes a sleeve (3-2) fixed below the mass block, and a pair of guide rods (3-3) provided at both ends of the sleeve and slidable relative to the sleeve, with disc springs fitted to the portions of the two guide rods located outside the sleeve, the disc springs fitted between the outer projections of the guide rods and the outer wall of the sleeve (3-2), and the outer ends of the guide rods are connected to a first circular slide rail (3-10) on the inner wall of the wind turbine tower. a) A slidably mounted and located within the sleeves of two guide rods, one end of each guide rod is interlocked via a first gear transmission unit, the first gear transmission unit is connected to a first inert flywheel (3-4) located within the sleeve (3-2), the second inert mechanism includes a bracket (3-12) perpendicular to the direction of the guide rod (3-3), the bracket (3-12) is slidably mounted on a second circular slide rail (3-12a) on the inner wall of the wind turbine tower, the mass block and sleeve (3-2) are slidably mounted on the bracket (3-12), the second gear transmission unit connected to the mass block is connected to a second inert flywheel (3-6) located on the bracket (3-12), The first gear transmission unit includes at least two first racks (3-3a) provided at one end of one guide rod (3-3) and at least one second rack (3-3b) provided at one end of the other guide rod, wherein the first racks (3-3a) and the second racks (3-3b) are inserted through each other from opposite directions and meshed together via a first gear (3-5), the first gear (3-5) and the first inert flywheel (3-4) are coaxially connected, and the second gear transmission unit includes a third rack (3-8) connected to a connecting rod (3-13) provided above the mass block, and a second inert flywheel (3 A horizontal omnidirectional self-adaptive inertia vibration damping system characterized by comprising a second gear (3-7) coaxially connected to (6), the third rack (3-8) being meshed and connected to the second gear (3-7), the disc spring being a variable stiffness disc spring group (3-9), the sleeve (3-2) being provided on a bracket (3-12) via a sliding regulating rod (3-11), the bracket (3-12) having elongated horizontal holes on opposing longitudinal sides, the sleeve (3-2) having through holes on corresponding sides, and the sliding regulating rod (3-11) being slidably connected to the bracket by passing through the through holes on the sides of the sleeve and the elongated holes in the bracket.

2. It is a bionic wind power tower. A bionic wind turbine tower comprising a horizontal omnidirectional self-adaptive inertar vibration control system as described in claim 1, wherein the vibration control system is provided at the top of the wind turbine tower and / or at the inter-segment connection of the tower unit.

3. The bionic wind power tower according to claim 2, further comprising a plurality of coaxial conical tower units (1) connected by a self-resetting connection assembly.

4. The bionic wind power tower according to claim 3, wherein the tower unit (1) includes a bionic steel pipe bundle consisting of an outer steel pipe (1-1), an inner steel pipe (1-2), and a plurality of core tubes (1-3), the outer steel pipe (1-1) is fitted coaxially with the inner steel pipe (1-2), the plurality of core tubes (1-3) are uniformly arranged between the outer steel pipe (1-1) and the inner steel pipe (1-2), and concrete is uniformly filled between the outer steel pipe (1-1) and the inner steel pipe (1-2) and inside the bionic steel pipe bundle.

5. The bionic wind power tower according to claim 3, wherein the self-resetting connection assembly includes an annular plate (2-1), a variable friction connection plate (2-3), and a self-resetting bolt washer (2-2), the annular plate (2-1) being provided on the connecting end face of adjacent tower units, the inside being connected by bolts and a self-resetting bolt washer (2-2), and the outside of the tower unit (1) being connected by the variable friction connection plate (2-3).

6. The bionic wind power tower according to claim 5, characterized in that the variable friction connection plate (2-3) includes a first friction plate (2-3a) and a second friction plate (2-3b), the first friction plates (2-3a) are arranged in pairs and provided on the outer connection portions of adjacent tower units, the second friction plates (2-3b) are connected to a pair of first friction plates (2-3a), and a plurality of friction keys that interlock with each other are provided on the opposing sides of the first friction plates (2-3a) and the second friction plates (2-3b).

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