Temperature-adaptive eddy-rotational damper

Abstract

A vibration damper, in particular for a wind power installation, which is based on the eddy current principle and is temperature-regulated in such a way that it not only effectively removes the heat generated by the eddy currents, but in addition, in a self-regulating manner, effectively compensates for the loss of damping that occurs at higher temperatures.

Description

Technical Field

[0001] The present invention relates to a vibration damper, particularly a vibration damper suitable for use in wind power generation equipment, which is based on the eddy current principle and is temperature regulated in such a way that the vibration damper can not only effectively dissipate the heat caused by the generated eddy currents, but also effectively compensate for damping losses that occur at higher temperatures in a self-regulating manner.

[0002] The present invention particularly relates to a rotational-vibration damper that moves along with a damping mass on a preferably curved raceway in response to the applied vibrational force. Background Technology

[0003] Tall and slender buildings and equipment are exposed to special vibration conditions, which must be addressed through technical measures to prevent damage or premature fatigue. This is particularly true for wind power equipment, which, due to rapid technological advancements in recent years, is increasingly used in more extreme locations (such as offshore) and at greater heights, and features increasingly taller towers to take advantage of better wind conditions. Such wind power equipment must be able to withstand the forces generated there by wind, waves, weather, and operation, which load the equipment at varying intensities and can compromise operation and safety. Therefore, targeted and effective damping of vibrations within the equipment is necessary through technical measures. This is achieved using vibration dampers of different structures, depending on the specific application and task.

[0004] This also includes vibration dampers known in the prior art that operate based on the eddy current principle. The function of such dampers is based on the induction of current in an electrical conductor (conductor element) moving due to a changing magnetic field (magnetic element / permanent magnet). This induced current (also called eddy current) also generates a magnetic field. This magnetic field acts against the initial magnetic field and thus creates resistance. Through axial relative motion between the conductor and the magnetic field, swirling eddy currents are induced in the conductor. These generated eddy currents, in turn, form a magnetic field that reacts with the initial magnetic field and brakes the conductor's motion. If the velocity is increased, the eddy currents in the conductor increase, resulting in a stronger magnetic field, thereby continuing and more forcefully braking the motion.

[0005] EP 2696072 describes a vibration damper assembly for wind power generation equipment with a mass pendulum. Here, in the case of vibration, the mass pendulum is preferably guided in two vibration devices, wherein motion occurs through a magnetic field arranged in a flat manner, which generates damped eddies.

[0006] WO 2016 / 023628 describes an eddy current vibration damper that achieves higher damping density and is also direction-independent. The damper essentially consists of a cylindrical tube with a magnet assembly and a movable conductor tube guided within it. Both tubes are guided frictionlessly within the region of the magnet assembly, wherein, in a preferred embodiment, the guidance of the conductor tube relative to the magnetic cylindrical tube is performed by a roller device outside the functional region.

[0007] WO 2017 / 036581 discloses a vibration damper specifically developed for wind power generation equipment. This vibration damper has a traveling or walking mechanism, a damper-main mass, and a curved traveling device. The damper-main mass is mounted on the traveling mechanism and can move out from a middle or apex position on the traveling device by means of wheels or rollers. Here, the traveling or walking mechanism or the damper-main mass has a disc-shaped, rotationally symmetric vibrating mass that forms only a part of the damper's main mass and moves together with it. The rotating mass member may have a device for generating eddy currents, which produces additional damping.

[0008] WO 2019 / 154557 describes a similar vibration damper in which a rotating vibrating mass is driven by a novel belt mechanism independent of the traveling mechanism, and additional damping devices in the form of eddy current dampers are provided on top of the rotating vibrating mass.

[0009] WO 2019 / 029839 relates to a vibration damper for wind power generation equipment, the vibration damper having a vibrating mass at a swing rope or swing bar, wherein the mass is placed in the vibration by an excitation frequency, and thus can be further damped by an eddy current-rotational damper.

[0010] In particular, a general problem with the eddy current damping principle, especially in the solutions described above, is its temperature dependence. Due to the eddy currents generated during the movement of the vibration damper, a damping effect proportional to velocity is produced not only through the braking of the damper's motion but also through the conversion of kinetic energy, significant heat is generated. Here, in eddy current dampers used in wind power equipment, the thermal power generated by the damping system can range from approximately 3-10 kW during rated operation. The heat is mainly generated in the conductive elements of the eddy current device. However, since the conductivity of available eddy current conductors (aluminum, copper, etc.) decreases with increasing temperature, the eddy current power also decreases significantly. Without measures for heat dissipation and temperature compensation, efficiency losses of up to approximately 50% occur in the electrical conductors of the device when temperatures far exceed 100°C. Therefore, at higher temperatures, damper function cannot be guaranteed without other measures. Increasing damping through larger conductors / magnetic elements has the disadvantage that at lower temperatures, the vibration damper may need to dampen excessively. Another possibility for reducing the negative heating effect on the efficiency of eddy current power lies in adequate heat dissipation. Typically, in the prior art, the conductor element is moved relative to a static magnetic element for various reasons. Thus, in the patent application mentioned above, the rotationally symmetric conductor disk rotates around a static magnetic disk, and heat can only be insufficiently dissipated from the rotating, heated conductor disk, thereby always resulting in damping losses. Summary of the Invention

[0011] Therefore, the objective of this invention is to provide an eddy current vibration damper that is highly efficient over a wide temperature range, but which also compensates for the heat generated during operation in a self-regulating manner when the external temperature fluctuates greatly, thereby avoiding significant loss in damping effect through the damper.

[0012] In addition to its temperature-adaptive properties, another task is to design a vibration damper that is already in motion by its mass when the amplitude of vibration is small, without being significantly damped.

[0013] The proposed task is addressed by a temperature-adaptive eddy-rotational vibration damper, as described below and characterized in the claims.

[0014] Therefore, the subject of this invention is a temperature-adaptive eddy current-rotational vibration damper having the following features: (i) a damping mass equipped with wheels or rollers mounted on at least one shaft, and thus movable on a guide device (e.g., a guide rail for the rollers or wheels) in response to the vibrational forces that occur; (ii) at least one rotationally symmetric magnetic disk connected to at least one shaft and rotating with the shaft during the movement of the damping mass; (iii) at least one static electrical conductor element functionally connected to at least one rotating magnetic disk via a gap, and thereby generating vibration-damping eddies during operation; (iv) the electrical conductor element connected to the damping mass, wherein the area and expansion of the electrical conductor element are designed to be dimensional such that the damping mass connected to the electrical conductor element... The cooling body functions to dissipate heat generated by eddy currents; (v) it has a movable element that allows at least one magnetic disk to move axially along at least one axis such that the width of the gap between the conductor element and the magnetic disk changes; and (vi) it has a temperature-dependent expansion volume that acts on the movable element, i.e., the expansion volume has a coefficient of expansion greater than that of the movable element, so that the movable element (a) in the case where the volume expands due to temperature increase, resists the preload force in reducing the gap and pulls the magnetic disk axially from its initial position toward the conductor plate, and (b) in the case where the volume contracts as the temperature decreases, pushes the magnetic disk back toward its initial position by the preload force in increasing the gap.

[0015] Furthermore, the subject of this invention is a corresponding vibration damper having a leerlaufvorrichtung (unloaded device) that prevents the magnetic disk from rotating with the shaft and rollers or wheels when the damping mass is moving or the amplitude is small, thereby achieving the desired lower damping under such conditions.

[0016] Ultimately, the subject of this invention is a wind power generation device equipped with at least one vibration damper according to the invention for automatically temperature-regulated damping of vibrations occurring in the device.

[0017] The vibration damper according to the invention is designed for use in tall, slender buildings and equipment, particularly in wind power generation equipment.

[0018] For this purpose, the damping mass utilizes wheels or rollers on one or more shafts, positioned on a guide device (e.g., a track assembly) for these wheels or rollers. On this guide device, the mass can move in a predetermined plane or direction. Preferably, the guide device or track assembly is circularly or concavely curved such that the mass can reciprocate in a predetermined direction like a pendulum in the event of vibrations triggered by external forces on the device. For example, the damping mass may have four wheels or rollers on two axes or shafts. At each wheel or roller, a vibration damper according to the invention may be provided on the associated shaft. However, according to the invention, it is also sufficient to provide such a vibration damper only at at least one wheel on one shaft.

[0019] The vibration damper according to the invention is constructed as follows: the electrical conductor is made of a material that is both electrically and thermally conductive (e.g., aluminum or copper, or an alloy of these metals). The electrical conductor is preferably configured as a plate, which, according to the invention, does not rotate and is connected to the damping mass. Here, the size and expansion of the plate are chosen to achieve the best possible heat exchange with the damping mass. Thus, the damping mass as a whole serves as a cooling body. Preferably, most or all of the surface of the damping mass is covered with the electrical conductor material, or connected to the electrical conductor material, for example, via cooling fins or heat pipes. Due to the large surface area, the heat generated during operation can thus be dissipated over a large area via radiation and convection.

[0020] Simultaneously, due to the larger mass, heat dissipation is very slow through this measure, ensuring that even prolonged power peaks do not lead to excessively elevated temperatures. Furthermore, the greater inertia advantageously affects the regulating behavior, as the regulating element to be used, described in more detail below, also possesses significant inertia, but this inertia is therefore less than the inertia of the mass, resulting in only minor lag in regulation. This has the advantage that the path of the regulating element (which, according to the invention, is temperature-dependently damped) does not lag behind temperature changes or lags only slightly behind them.

[0021] Another advantage of the steel-damping mass installed at the conductor plate is that it additionally improves the efficiency of eddy currents by adding steel behind the conductor plate.

[0022] According to the present invention, the magnetic element is formed by a rotating device, preferably a rotationally symmetrical disk. Here, permanent magnets of a corresponding arrangement can be used directly, or these permanent magnets can be mounted on and distributed on the carrier disk.

[0023] The magnetic element or magnetic disk is positioned while maintaining a substantially uniform distance relative to the conductor element. As already mentioned, the distance or gap relative to the large area of ​​the conductor element determines the efficiency of the eddy current damping. The damper power decreases with a larger distance, while the damper power increases with a smaller distance. Therefore, if the efficiency decreases relatively as described by an increase in operating temperature, this undesirable effect can be compensated by decreasing the distance between the magnetic element and the conductor element. Conversely, if the damper efficiency increases relatively by a decrease in operating temperature, this effect can be compensated by increasing the distance between the two elements. According to the invention, this is achieved in a self-adjusting manner by the moving and expanding elements described below, thereby maintaining a fixed distance between the two elements and thus a fixed damping value always independent of the ongoing temperature changes.

[0024] Therefore, according to the invention, the rotating magnetic disk moves in relation to temperature while maintaining a largely constant predetermined damping value, while the heat generated by the eddy currents is generated essentially at the static conductor element and is discharged to the damping mass.

[0025] The temperature-dependent movement of the disc-shaped magnetic element is achieved as follows: the magnetic disc is mounted at one end of a shaft driven by wheels at the opposite end of the shaft, thus rotating the magnetic disc. The magnetic disc is simultaneously arranged relative to a conductor element connected to a movable damping mass. The magnetic disc and the conductor element are separated from each other by a substantially constant gap. Furthermore, the magnetic disc is mounted at a moving element, which is arranged, for example, internally around the shaft and can reciprocate along the axis within a restricted perimeter. This also causes axial movement of the magnetic disc and thus changes the distance relative to the static conductor element. Suitably, the moving element is arranged rotationally symmetrically about the shaft and functionally connected to the magnetic disc. The moving element is pressed outward by a preload acting in the direction of the magnetic disc (e.g., in the form of a spring or hydraulic device, which, according to one embodiment of the invention, is further internally positioned on the shaft), thereby creating a defined distance between the magnetic disc and the conductor element. By moving inward against the preload, the gap distance between the magnetic disc and the conductor element is reduced, thereby increasing the damping effect. The axial movement of the moving element along the shaft can be achieved, for example, by means of a sliding bearing. Here, the movement of the moving element can be transmitted to the magnetic disk, for example, via a rolling bearing and an adjusting slider element. Now, the inward movement of the moving element against the preload force of the spring element is achieved through a temperature-dependent variable expansion / compression volume, which also determines the distance of the magnetic disk relative to the conductor element. This means that, as the temperature rises, the material of this expansion volume expands more strongly than the material of the moving element connected to the expansion volume. The moving element, through the force generated by the expansion, resists the preload force of the spring element during axial movement, pressing inward from its initial position, thereby pulling the magnetic disk inward as the gap distance between the magnetic disk and the conductor element decreases. Therefore, in a warm / hot state, the distance decreases and thus the damping increases, while as the temperature decreases, the expansion volume contracts, thereby allowing the magnetic disk to return to its initial state as a result of a continuously outward-pointing preload force. Therefore, a larger gap distance reappears, and the damping decreases compared to the state with rising temperatures, while the initial value increases. At temperatures even lower than in the initial state, the expansion volume contracts further, causing the distance between the magnetic disk and the conductor disk to be greater than in the initial state. Therefore, the damping does not increase further at temperatures lower than in the initial state.

[0026] For example, the expansion volume can be arranged rotationally symmetrically about an axis corresponding to the moving element; however, the expansion volume can also be arranged elsewhere at the damper, provided that the contact with the damping mass is sufficient to absorb the heat generated there during eddy current operation. For this effect to be sufficient and effective, the expansion volume should have the shortest possible path relative to the heating region of the eddy current element, should be correspondingly large enough, and should have a coefficient of thermal expansion that is many times (at least 5-10 times) greater than that of the surrounding material, especially the moving element. Suitable materials (e.g., plastics or polymers) are well known in the art. Many plastics (e.g., polypropylene, polyethylene, or silicone) have sufficiently high (e.g., 10-20 times) coefficients of thermal expansion compared to steel (from which moving elements are typically made).

[0027] The proposed structure of the vibration damper further requires that the torque of the shaft be transmitted to a magnetic disk mounted on the moving element. For this purpose, a coupling device is provided between the shaft and the magnetic disk. The coupling device may, for example, include a rigid torque lever having a sheet that elastically bends from its initial length as the magnetic disk moves, or, when using a rigid element or torque lever for this purpose, a sliding bushing or other sliding element.

[0028] In one embodiment of the invention, an additional unloading device for the magnetic disk is provided. This unloading device should prevent the magnetic disk from rotating with the shaft and rollers or wheels when the damping mass is moving or the amplitude is small, so as to additionally achieve damping without the generation of eddy currents.

[0029] Such an unloaded device may include, for example, a torque lever with a defined free rotation angle and a resilient stop element. Thus, as the damping mass oscillates on a curved track, the torque lever can move with the rotating shaft within the free rotation angle, without fully actuating the magnetic disk each time. The magnetic disk is only actuated when the stop point is reached, generating damped eddies in its interaction with the conductive element. Attached Figure Description

[0030] The present invention will now be described in detail with reference to the accompanying drawings: Detailed Implementation

[0031] Figure 1(A) and (B) show two perspective views of a vibration damper according to the invention on a slide rail assembly (1). The vibration damper itself comprises a vibrating mass (2) that moves on a track on four wheels (3). The track is circularly curved so that the damping mass, which serves as a slide, can reciprocate in the direction of the track (1) in response to the vibrational force acting on the device. The four wheels (3) are supported on an axle that leads through an opening in the suspended mass and has its own rotationally symmetric damping element (4) on the outside. The rotationally damping element (4) comprises a rotationally symmetric carrier disk (13) and a permanent magnet (14). The rotationally damping element (4) rotates together with the wheels (3) via their common axis. The damping mass (2) is covered on the upper side by one or more conductor plates (aluminum). In the region of the rotational element (4), the conductor plates are arranged parallel between the mass (2) and the rotational element (4) and have a gap distance that is substantially constant with respect to the relevant surfaces.

[0032] Figure 2The cross-section of the rotating element (4), its arrangement in the vibration damper according to the invention, and details of its construction are shown. A shaft (10) is guided through a portion of the damping mass (2). A roller (3) (not shown) is provided at the left (inner) end of the shaft, which moves on a slide rail (1) (not shown). A portion of a large-area conductor plate (5) is provided at the right (outer) end of the damping mass. At the right (outer) end of the shaft, a structure consisting of magnetic disks (13)(14), a moving element (6), and an expansion volume (7) is depicted. The carrier disk (13) is equipped with a plurality of permanent magnets (14). The carrier disk is connected to the moving element (6) and can be moved axially through the moving element. The moving element (6) and thus the magnetic disks (13)(14) are axially pressed outward by a preload (30) in the form of a spring (11) until a stop point defined by the expansion volume (7). Thus, a gap distance (33) is established between the magnet and the parallel-arranged conductor plates (5), which can be reduced by moving inward against the spring force (30) of the spring (11). Around the axis, an expansion volume (7) is arranged in a correspondingly shaped recess of the damping mass (2). This expansion volume is essentially composed of a temperature-dependent polymer that undergoes a significant volume increase as the temperature rises, and thus applies an axially inward force to the moving element, and reacts with the spring force (30) of the spring (11). If the force caused by the volume increase of the polymer is large enough, it compresses the spring (11) and pushes the moving element (6) inward in region (29). Thus, the magnetic disks (13)(14) connected to the guide element are also pushed inward toward the conductor plates (5) as the gap distance (33) decreases. As the magnetic disk rotates, the temperature rise required for the volume increase occurs in region (27) between the magnet (14) and the conductor plates (5). The heat generated in region (27) is conducted to the polymer cavity via a short path (28) through the well-conducting metal element of the structure. Upon cooling, the expanded volume contracts again, and the associated component moves outward in the opposite direction by the spring force (30) which is now dominant again by the spring (11). To prevent the polymer from being uncontrollably pressed into the moving element (6) when the volume increases, a blocking diaphragm (8) can be provided for cases where the polymer volume is liquid or semi-liquid. If a solid is used, the blocking diaphragm can be omitted. In the illustrated embodiment, the moving element (6) itself consists of an adjusting slider (12), a sliding-sliding bearing (21), and a rotary-rolling bearing (9). Due to the required mobility of the magnetic disk (13)(14), the magnetic disk cannot be directly and fixedly connected to the shaft (10).However, in order to still transmit the torque of the shaft (10) to the magnetic disks (13)(14), a coupling element is provided. In the illustrated embodiment, the coupling element includes a torque lever (15), a plurality of coupling tabs (16), and a shaft-fixing member (17). The torque lever (15) is fixedly connected to the shaft (10) via the coupling element (17), and the elastic tabs (16) are connected to the outer side of the carrier disk (13). The tabs reversibly bend when the magnetic disk moves inward or in the direction of the conductor plate (5) (when the temperature rises).

[0033] Figure 3 To a large extent, corresponding to Figure 2 The diagram shows that, apart from the engaging elements (15), (16), and (17), the engaging element here is a gear shaft engagement member. In this embodiment, torque transmission is carried out via a gear shaft (22) connected to the gear sleeve (23).

[0034] Figure 4 Similarly Figure 2 The sheet-joint device for transmitting torque is shown in detail from different views.

[0035] Figure 5(A) shows a 3D view of the vibration damper according to the invention (without damping mass and rollers), in which torque transmission, although via a torque lever, occurs without a resiliently bendable sheet. Instead, a rigid torque lever is used, which is connected to a magnetic disk via an axially oriented sliding bushing-support that enables the magnetic disk to move accordingly along the axis.

[0036] Figure 5(B) shows a similar 3D view of the vibration damper according to the invention, in which a rigid torque lever (15) is connected to a magnetic disk via a soft, axially movable sliding element (42) or a soft, spun elastic element in that direction, whereby the magnetic disk can move reversibly along the axis. In the illustrated form, the expansion element (7) is constructed as a solid with a high coefficient of expansion. This eliminates the need for a diaphragm (8) when using a liquid. A metal element (40) for transmitting thrust is integrated into the expansion element (7), which compensates for the spring force (30) via a moving element (6) and a rolling bearing (9). To compensate for angular errors, the connecting line between (40) and the moving element (6) is spherically shaped. Thus, universal compensation is achieved when there is an angular error between the moving element (6) and the pressure element (40).

[0037] Figure 6Different views of the vibration damper according to the invention in the embodiment described above are shown, but this vibration damper additionally has unloaded devices (18)(19)(20) for the magnetic disks (13)(14). The unloaded devices are formed by at least one, preferably two, stop points (18). In this figure, two opposite stop points are provided, which are pressure-elastic to dampen impacts. The lever (15) thus has a free rotation angle (19), and thus can rotate freely (20) during its swinging motion in operation. In the case of two stop points, the free rotation angle is preferably about 150-160°. However, only a single stop point may be provided, such that the torque lever can move freely about 360°.

[0038] Figure 7 The vibration damper according to the present invention is shown in the figure. Figure 6 The same implementation is used, i.e., with additional stop devices (18)(19)(20). The preload spring (11) is replaced here by a disc spring stack (25), which can be adjusted in its preload force via an adjusting screw (26).

Claims

1. A temperature-adaptive eddy current-rotational vibration damper, comprising: (i) a damping mass, said damping mass being equipped with wheels or rollers mounted on at least one axle, and thus capable of moving on a guide device in response to the resulting vibration force. (ii) At least one rotationally symmetric magnetic disk, said magnetic disk being connected to said at least one shaft and rotating together with said shaft during the movement of said damping mass, and (iii) At least one static electrical conductor element, which is functionally connected to the at least one rotating magnetic disk via a gap, and thereby generates vibration-damped eddy currents. Its features are, (iv) The electrical conductor element (5) is connected to the damping mass (2), wherein the area and expansion of the electrical conductor element are designed such that the damping mass (2) connected to the electrical conductor element functions as a cooling body to dissipate the heat generated by the eddies. (v) A movable element (6) is provided, which enables the at least one magnetic disk (13)(14) to move axially along the at least one axis (10) such that the width of the gap (33) between the conductor element (5) and the magnetic disk (13)(14) changes, and (vi) A temperature-dependent expansion volume (7) is provided, which acts on the moving element (6) such that the expansion volume has a larger expansion coefficient than the expansion coefficient of the moving element, thereby the moving element (6) (a) when the volume (7) expands due to temperature increase, resists the preload force (30) to reduce the gap (33) and pulls the magnetic disk (13)(14) axially from the initial position toward the conductor plate (5), and (b) when the volume (7) contracts due to temperature decrease, pushes the magnetic disk (13)(14) back toward the initial position by the preload force (30) to increase the gap (33).

2. The temperature-adaptive eddy current-rotational vibration damper according to claim 1, characterized in that, The moving element (6) is in contact with the expansion volume (7), and the two components are arranged symmetrically about the axis (10) with respect to the magnetic disks (13) (14) at the ends.

3. The temperature-adaptive eddy current-rotational vibration damper according to claim 1 or 2, characterized in that, The moving element (6) is pressed towards the expansion volume (7) and the magnetic disk (13)(14) by the preload (30).

4. The temperature-adaptive eddy current-rotational vibration damper according to any one of claims 1-3, characterized in that, The movement of the moving element (6) is carried out via a sliding bearing (21) on the shaft (10).

5. The temperature-adaptive eddy current-rotational vibration damper according to any one of claims 1-4, characterized in that, The movement of the moving element (6) is transmitted to the magnetic disk (13)(14) via the rolling bearing (9) and the adjusting slider element (12).

6. The temperature-adaptive eddy current-rotational vibration damper according to any one of claims 1-5, characterized in that, The torque required for the function of the shaft (10) is transmitted to the magnetic disk (13) and (14) via the engagement devices (15)(16)(17)(22)(23).

7. The temperature-adaptive eddy current-rotational vibration damper according to claim 6, characterized in that, The engagement device includes a torque lever (15) with an elastic sheet (16) or a rigid torque lever (15), the rigid torque lever being guided by a sliding element (42).

8. The temperature-adaptive eddy current-rotational vibration damper according to any one of claims 1-7, characterized in that, The electrical conductor element (5) is larger than the magnetic disk (13) (14).

9. The temperature-adaptive eddy current-rotational vibration damper according to claim 8, characterized in that, The electrical conductor element (5) is mounted on the surface of the damping mass over a large area.

10. The temperature-adaptive eddy current-rotational vibration damper according to any one of claims 1-9, characterized in that, The eddy current-vibration damper has an additional cooling device to further remove the heat generated by the eddy current.

11. The temperature-adaptive eddy current-rotational vibration damper according to any one of claims 1-10, characterized in that, The eddy current-vibration damper has an unloaded device (18)(19)(20) that prevents the magnetic disk (13)(14) from rotating with the shaft and the roller or wheel when the movement of the damping mass (2) is small, thereby achieving lower damping.

12. The temperature-adaptive eddy current-rotational vibration damper according to any one of claims 1-11, characterized in that, The magnetic disk consists of a carrier disk (13) and a permanent magnet (14) mounted on the carrier disk.

13. The temperature-adaptive eddy current-rotational vibration damper according to any one of claims 1-12, characterized in that, The preload (30) is provided by a spring device (11) or a hydraulic device.

14. The temperature-adaptive eddy current-rotational vibration damper according to claim 13, characterized in that, The spring device (11) is a disc spring stack (25).

15. The temperature-adaptive eddy current-rotational vibration damper according to any one of claims 1-14, characterized in that, The guiding device for the damping mass (2) has at least one slide rail or raceway for bending the roller or wheel, and the damping mass is able to swing back and forth on the slide rail or raceway during vibration.

16. A wind power generation device, comprising a tower, a rotor, a nacelle, and a generator, characterized in that, The wind power generation equipment has a vibration damper according to any one of claims 1-15.

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