Suspension type underwater data center multi-stage collaborative vibration reduction device and method

Through a multi-stage collaborative vibration damping device, including a support damping spring, a rubber damping support disc and a magnetorheological damper, the adaptive vibration damping problem of suspended underwater data center is solved, efficient vibration damping effect and equipment stability are achieved, and maintenance costs are reduced.

CN120402572APending Publication Date: 2025-08-01CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST +1
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510604087.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-12
Publication Date
2025-08-01

AI Technical Summary

Technical Problem

The existing vibration damping technology of suspended underwater data centers cannot adaptively adjust the damping performance. The traditional passive damper has limited effect, and the method of enhancing structural stiffness increases costs and has poor effect on suppressing high-frequency vibrations.

Method used

A multi-stage collaborative vibration damping device is adopted, including a support damping spring, a rubber damping support disc, a magnetorheological damper and a vertical hydraulic rod. Through a multi-stage vibration damping structure, the adaptive adjustment ability of the magnetorheological damper is used to provide support with the support damping spring and hydraulic rod to achieve adaptive adjustment for different vibration conditions.

Benefits of technology

It achieves efficient vibration damping performance, reduces equipment failures, extends equipment life, and reduces maintenance costs. It is suitable for complex marine environments without increasing structural weight and construction costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120402572A_ABST
    Figure CN120402572A_ABST
Patent Text Reader

Abstract

The invention relates to a suspension type underwater data center multi-stage collaborative damping device, and belongs to the technical field of ocean engineering and data centers, the suspension type underwater data center multi-stage collaborative damping device comprises a bearing steel frame plate arranged in a suspension tunnel pipe body, and the bearing steel frame plate is provided with a first-stage damping device, a second-stage damping device and a connecting assembly; the data center module is arranged in the connecting assembly; the first-stage vibration reduction device comprises a supporting damping spring and a rubber damping supporting disc which are arranged between the bearing steel frame plate and the connecting assembly. The second-stage vibration reduction device comprises a magneto-rheological damper and a vertical hydraulic rod which are arranged between the rubber damping supporting disc and the connecting assembly. The invention further provides a multi-stage collaborative vibration reduction method for the suspended underwater data center.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention belongs to the technical fields of ocean engineering and data centers, and relates to a multi-level collaborative vibration damping device and method for a floating underwater data center. Background Art

[0002] With the continuous growth of data storage requirements, the floating underwater data center has become an important development direction in the data storage field due to its advantages of using natural seawater cooling to reduce energy consumption and save land space resources. However, during its operation, it faces multiple vibration challenges such as dynamic loads like waves and ocean currents, as well as mechanical vibrations generated by the operation of internal equipment. Vibration can lead to data transmission errors, frequent equipment failures, accelerate equipment fatigue damage, shorten the service life, and increase maintenance costs. Existing vibration damping technologies have limitations. For example, traditional passive dampers cannot adaptively adjust the damping performance. Although the method of enhancing the structural stiffness can reduce the amplitude of low-frequency vibration, it significantly increases the structural weight and construction cost, and has a poor effect on suppressing high-frequency vibration.

[0003] In the prior art, there are many limitations in the vibration damping means for floating underwater data centers. Some solutions rely on traditional passive dampers. For example, the hydraulic damper proposed in the prior art has a fixed damping coefficient and cannot adaptively adjust according to the vibration frequency and intensity, and its effect is limited in high-frequency vibration or variable-amplitude vibration environments. Other solutions reduce the amplitude of low-frequency vibration by enhancing the structural stiffness, but this method significantly increases the structural weight and construction cost, and has a poor effect on suppressing high-frequency vibration.

[0004] Therefore, there is an urgent need for a vibration damping device and method that can better adapt to the vibration characteristics of floating underwater data centers. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a multi-level collaborative vibration damping device and method for a floating underwater data center.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] On the one hand, the present invention provides a multi-level collaborative vibration damping device for a floating underwater data center, including a load-bearing steel frame plate arranged inside a floating tunnel pipe body, on which a first-level vibration damping device, a second-level vibration damping device, and a connection component are arranged; a data center module is arranged inside the connection component;

[0008] The first-level vibration damping device includes a support damping spring and a rubber damping support disk arranged between the load-bearing steel frame plate and the connection component; the second-level vibration damping device includes a magnetorheological damper and a vertical hydraulic rod arranged between the rubber damping support disk and the connection component.

[0009] Furthermore, the floating tunnel tube body is connected and fixed underwater through anchor cables.

[0010] Furthermore, the connection assembly includes an upper first-stage connecting plate, a lower first-stage connecting plate, a vertical connecting plate, an upper second-stage connecting plate, and a lower second-stage connecting plate; the upper first-stage connecting plate and the lower first-stage connecting plate are connected through the vertical connecting plate; the data center module is installed between the upper first-stage connecting plate and the lower first-stage connecting plate;

[0011] The upper second-stage connecting plate is arranged below the lower first-stage connecting plate; the magnetorheological damper and the vertical hydraulic rod are arranged between the upper second-stage connecting plate and the lower second-stage connecting plate;

[0012] The support damping spring is arranged between the lower first-stage connecting plate and the bearing steel frame plate;

[0013] The rubber damping support disc is arranged below the lower second-stage connecting plate.

[0014] Furthermore, a bottom support is also arranged below the rubber damping support disc, and the bottom support is fixedly connected to the bearing steel frame plate.

[0015] Furthermore, there are four groups of the second-stage damping devices and the corresponding upper second-stage connecting plates and lower second-stage connecting plates, which are respectively arranged at the four corners of the lower first-stage connecting plate.

[0016] Furthermore, each group of the second-stage damping devices has four magnetorheological dampers inclined in different directions; the magnetorheological dampers are respectively connected to the upper second-stage connecting plate and the lower second-stage connecting plate through connecting seats and connecting rods at both ends.

[0017] Furthermore, the magnetorheological damper consists of a magnetorheological damper end cover, a piston, a magnetic flow ring, and magnetorheological fluid; the magnetic flow ring and the magnetorheological fluid are arranged at the rod end of the piston, and the magnetorheological damper end cover is used to seal the rod end of the piston; a vacuum chamber is formed at the rodless end of the piston; the magnetic field intensity of the magnetic flow ring is adjustable, so as to change the rheological characteristics of the magnetorheological fluid and adjust its own damping force.

[0018] Furthermore, the vertical hydraulic rod in each group of the second-stage damping devices is arranged at the center of the four magnetorheological dampers, one end of which is connected to the upper second-stage connecting plate, and the other end is connected to the lower second-stage connecting plate.

[0019] On the other hand, the present invention provides a multi-stage collaborative damping method for a floating underwater data center, including the following steps:

[0020] Step 1: Install a multi-stage damping structure between the tube body of the floating underwater data center and the data center module;

[0021] Step 2: According to the structural characteristics of the data center and the operating parameters of the equipment, debug the magnetorheological damper to determine its damping performance under different magnetic field strengths;

[0022] Step 3: When the pipe body vibrates under external wave forces and impact forces, the vibration is sequentially transmitted to the load-bearing steel frame plate; the load-bearing steel frame plate transfers the vibration energy to the supporting damping spring through the connecting device to initially buffer the vibration and reduce the vibration energy; subsequently, the rubber damping support disk further absorbs and dissipates the vibration energy to achieve the initial reduction of the vibration;

[0023] Step 4: The vibration energy after the first-stage vibration reduction is used to squeeze the magnetorheological damper and the vertical hydraulic rod through the connecting component; the magnetorheological damper adjusts the damping force according to the magnetic field strength to adapt to different vibration conditions and further cancel out multi-directional vibrations; the vertical hydraulic rod cooperates with the supporting damping spring to provide support;

[0024] Step 5: Finally, isolate the remaining minute vibrations through the bottom support to ensure the operation of the data center module in a stable environment.

[0025] The beneficial effects of the present invention are as follows:

[0026] 1. High-efficiency vibration reduction performance: The vibration reduction device of the present invention adopts a multi-stage collaborative vibration reduction structure, including components such as a supporting damping spring, a rubber damping support disk, and a magnetorheological damper, which can effectively weaken the vibration impact transmitted from the pipe body to the data center module, ensure the stable operation of the equipment, and reduce data transmission errors and equipment failures.

[0027] 2. Adaptive adjustment ability: The magnetorheological damper can adjust the magnetic field strength in real time according to the vibration signal, thereby changing the damping coefficient, achieving adaptive adjustment to different vibration conditions, and improving the vibration reduction effect.

[0028] 3. Compact structure and easy installation: The multi-stage vibration reduction structure is designed compactly, which is convenient for installation in a limited space, and the installation method is flexible, meeting the layout requirements of various floating underwater data centers.

[0029] 4. Extend the service life of the equipment: By effectively suppressing vibrations, reducing equipment fatigue damage, extending the service life of the equipment, and reducing maintenance costs.

[0030] 5. Good stability and reliability: The multi-stage vibration reduction structure adopts multiple vibration reduction components to work together, improving the stability and reliability of the entire vibration reduction system, and ensuring the normal operation of the data center in a complex marine environment.

[0031] 6. Space and cost savings: Compared with the method of enhancing structural stiffness, the vibration reduction device of the present invention does not require a significant increase in structural weight and construction costs, and can also save space, having high economic efficiency and practicality.

[0032] 7. Wide applicability: The vibration damping device of the present invention is not only applicable to the floating underwater data center, but also can be widely applied to other marine engineering structures that require vibration damping, with wide applicability.

[0033] Other advantages, objectives and features of the present invention will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the following specification. Brief Description of the Drawings

[0034] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in detail preferably with reference to the accompanying drawings, where:

[0035] Figure 1 is the overall layout diagram of the multi-level collaborative vibration damping device for the floating underwater data center of the present invention;

[0036] Figure 2 is the structural diagram of the multi-level collaborative vibration damping device for the floating underwater data center of the present invention;

[0037] Figure 3 is the structural diagram of the second-level vibration damping device.

[0038] Reference numerals: 1 - floating tunnel tube body, 2 - upper connecting plate of the first level, 3 - data center module, 4 - lower connecting plate of the first level, 5 - magnetorheological damper, 6 - vertical hydraulic rod, 7 - anchor cable, 8 - bearing steel frame plate, 9 - support damping spring, 10 - rubber damping support disc, 11 - connecting seat, 12 - vertical connecting plate, 13 - upper connecting plate of the second level, 14 - end cover of the magnetorheological damper, 15 - connecting rod, 16 - magnetic flow coil, 17 - piston, 18 - vacuum chamber, 19 - lower connecting plate of the second level, 20 - bottom support. Detailed Description of the Preferred Embodiment

[0039] The following specific examples illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present invention schematically. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0040] Among them, the attached drawings are only for illustrative purposes, showing only schematic diagrams rather than actual drawings, and should not be construed as limiting the present invention; in order to better illustrate the embodiments of the present invention, some components in the attached drawings will be omitted, enlarged or reduced, which does not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted.

[0041] In the attached drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the attached drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the attached drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0042] Embodiment 1:

[0043] As Figure 1 shown, the multi-level collaborative vibration damping device of the suspended underwater data center in this embodiment mainly consists of a suspended tunnel tube body 1, a data center module 3 and a multi-level vibration damping structure. The multi-level vibration damping structure includes the following key components: a support damping spring 9, a rubber damping support disk 10, a magnetorheological damper 5, a vertical hydraulic rod 6, a first-stage upper connecting plate 2, a first-stage lower connecting plate 4, a second-stage upper connecting plate 13, a second-stage lower connecting plate 19, a connecting seat 11, a vertical connecting plate 12, a connecting rod 15 and a bottom support 20.

[0044] The suspended tunnel tube body is connected and fixed underwater through a cable 7. The data center module 3 is connected to the suspended tunnel tube body 1 via a load-bearing steel frame plate 8. Specifically, the load-bearing steel frame plate 8 serves as a connecting link, with one end connected to the suspended tunnel tube body 1 and the other end connected to the multi-level vibration damping structure.

[0045] The support damping spring 9 cooperates with the rubber damping support disc 10 to initially reduce the lateral, vertical, and diagonal vibration energy. The magnetorheological dampers 5 are obliquely distributed at a certain angle to further cancel out multi-directional vibrations, and their damping force can be adjusted. The vertical hydraulic rod 6 cooperates with the support damping spring 9 to play a supporting role. The multi-stage vibration damping structure is installed between the floating tunnel pipe body 1 and the data center module 3 and is connected to the pipe body through the load-bearing steel frame plate 8. When the pipe body vibrates under the action of external wave forces, impact forces, etc., the vibration is sequentially transmitted to the load-bearing steel frame plate 8, the support damping spring 9, the rubber damping support disc 10, and then transmitted to the magnetorheological damper 5 and the vertical hydraulic rod 6 through the connecting device. Through the synergistic effect of the multi-stage vibration damping structure, the vibration impact transmitted from the pipe body to the data center module 3 is weakened.

[0046] The multi-stage vibration damping structures are evenly distributed at the bottom edge and side of the data center cabin to ensure that the vibration acting forces can be evenly borne. The vibration damping device adopts advanced signal processing technology to adjust the magnetic field strength of the magnetorheological damper in real time according to the vibration signal and change the damping coefficient.

[0047] Embodiment 2:

[0048] In this embodiment, the floating underwater data center multi-stage collaborative vibration damping device includes a first-stage vibration damping device, a second-stage vibration damping device, and a connection component; the first-stage vibration damping device includes a support damping spring 9 and a rubber damping support disc arranged between the load-bearing steel frame plate 8 and the connection component; the second-stage vibration damping device includes a magnetorheological damper 5 and a vertical hydraulic rod 6 arranged between the rubber damping support disc and the connection component; the connection component includes a first-stage upper connecting plate 2, a first-stage lower connecting plate 4, a vertical connecting plate 12, a second-stage upper connecting plate 13, and a second-stage lower connecting plate 19; the first-stage upper connecting plate 2 and the first-stage lower connecting plate 4 are connected through the vertical connecting plate 12; the data center module 3 is installed between the first-stage upper connecting plate 2 and the first-stage lower connecting plate 4; the second-stage upper connecting plate 13 is arranged below the first-stage lower connecting plate 4; the magnetorheological damper 5 and the vertical hydraulic rod 6 are arranged between the second-stage upper connecting plate 13 and the second-stage lower connecting plate 19; the support damping spring 9 is arranged between the first-stage lower connecting plate 4 and the load-bearing steel frame plate 8; the rubber damping support disc is arranged below the second-stage lower connecting plate 19. A bottom support 20 is also provided below the rubber damping support disc, and the bottom support 20 is fixedly connected to the load-bearing steel frame plate 8.

[0049] There are four groups of the second-stage vibration damping devices and the corresponding second-stage upper connecting plates 13 and second-stage lower connecting plates 19, which are respectively arranged at the four corners of the first-stage lower connecting plate 4. Each group of the second-stage vibration damping devices has four magnetorheological dampers 5 inclined in different directions; the magnetorheological dampers 5 are respectively connected to the second-stage upper connecting plate 13 and the second-stage lower connecting plate 19 through the connecting seats 11 and connecting rods 15 at both ends.

[0050] The magnetorheological damper 5 consists of a magnetorheological damper end cap 14, a piston 17, a magnetorheological coil 16, and magnetorheological fluid; the magnetorheological coil 16 and the magnetorheological fluid are arranged at the rod end of the piston 17, and the magnetorheological damper end cap 14 is used to seal the rod end of the piston 17; a vacuum chamber 18 is formed at the rodless end of the piston 17; the magnetic field intensity of the magnetorheological coil 16 is adjustable, thereby changing the rheological characteristics of the magnetorheological fluid and adjusting its own damping force.

[0051] The vertical hydraulic rod 6 in each group of the second-stage vibration damping device is arranged at the center of the four magnetorheological dampers 5, one end of which is connected to the second-stage upper connecting plate 13, and the other end is connected to the second-stage lower connecting plate 19.

[0052] The working process of the multi-stage vibration damping structure is as follows: When vibration occurs, first, the floating tunnel tube body 1 receives vibrations caused by external wave forces, impact forces, etc. from the marine environment. These vibrations are transmitted to the first-stage vibration damping components - the support damping spring 9 and the rubber damping support disc 10 through the load-bearing steel frame plate 8. At this stage, the support damping spring 9 first buffers the vibration preliminarily, reducing the vibration energy, and then the rubber damping support disc 10 further absorbs and dissipates the vibration energy, realizing the preliminary reduction of the vibration, and effectively weakening the vibration energy in multiple directions such as horizontal, vertical, and oblique.

[0053] The vibration energy after the first-stage vibration damping is transmitted to the second-stage vibration damping components - the magnetorheological damper 5 and the vertical hydraulic rod 6 through the connecting seat 11 and the vertical connecting plate 12. The magnetorheological dampers 5 are obliquely distributed at a certain angle and can adjust their own damping force according to the magnetic field intensity. When the vibration is transmitted to the magnetorheological damper 5, through the regulation of the external control system, the magnetorheological fluid in the magnetorheological damper 5 quickly changes its rheological characteristics under the action of the magnetic field, thereby realizing the rapid adjustment of the damping force to adapt to different vibration conditions and further offsetting the vibration energy in multiple directions. At the same time, the vertical hydraulic rod 6 cooperates with the support damping spring 9 to jointly provide a supporting effect for the entire vibration damping structure, ensuring the stability of the vibration damping structure.

[0054] Finally, after the synergistic effect of the two-stage vibration damping structure significantly weakens the vibration energy, the data center module 3 is installed at the end of the multi-stage vibration damping structure, that is, on the bottom support 20, through the connecting plate. The bottom support 20 not only bears the weight of the data center module 3 but also plays a role in isolating the remaining tiny vibrations, thereby ensuring the operation of the data center module 3 in a stable environment.

[0055] As Figure 2 and Figure 3As shown in the figure, when the pipe body 1 vibrates under the action of external wave forces, impact forces, etc., the vibration is sequentially transmitted to the load-bearing steel frame plate 8. The load-bearing steel frame plate 8 transmits the vibration energy to the support damping spring 9 and the rubber damping support disc 10 through the connecting device, reducing part of the vibration energy. Subsequently, the connecting device connecting plate squeezes the magnetorheological damper 5 and the vertical hydraulic rod 6. The magnetorheological damper 5 adjusts the damping force according to the magnetic field strength to adapt to different vibration conditions and further cancel multi-directional vibrations. The vertical hydraulic rod 6 cooperates with the support damping spring 9 to provide support.

[0056] Embodiment 3:

[0057] The present invention also provides a multi-level collaborative vibration reduction method for a suspended underwater data center, which uses the above vibration reduction device. The method includes the following steps:

[0058] Step 1: Install a multi-level vibration reduction structure between the pipe body of the suspended underwater data center and the data center module, including components such as support damping springs, rubber damping support discs, magnetorheological dampers, and vertical hydraulic rods.

[0059] Step 2: According to the structural characteristics of the data center and the equipment operation parameters, debug the magnetorheological damper to determine its damping performance under different magnetic field strengths.

[0060] Step 3: When the pipe body vibrates under the action of external wave forces, impact forces, etc., the vibration is sequentially transmitted to the load-bearing steel frame plate, support damping spring, rubber damping support disc, and then transmitted to the magnetorheological damper and the vertical hydraulic rod through the connecting device. Through the collaborative action of the multi-level vibration reduction structure, the vibration influence transmitted from the pipe body to the data center module is weakened.

[0061] The working principle of the present invention is: The data center module is placed in an underwater suspended tunnel segment connected by anchor cables and is connected to the pipe body through a bearing plate. When the pipe body is affected by external wave forces, impact forces, etc., the pipe body will vibrate. The vibration of the pipe body is transmitted to the bearing plate 8. The bearing plate transmits the vibration energy to the support damping spring 9 and the rubber damping support disc 10 through the connecting device. This combination can reduce part of the transverse, vertical, and oblique vibration energies. Then, the connecting device connecting plate squeezes the magnetorheological damper 5 and the vertical hydraulic rod 6. The magnetorheological damper 5 is arranged obliquely at a certain angle and can cancel multi-directional vibrations. Among them, the vertical hydraulic rod 6 cooperates with the support damping spring to also play a supporting role. And the data center is installed at the working end of the multi-level damper through the connecting plate. Through the above steps, the vibration reduction device completes the function of weakening the vibration influence transmitted from the pipe body.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the present technical solution, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A multi - level collaborative vibration damping device for a floating underwater data center, characterized in that: It includes a load-bearing steel frame plate arranged inside the floating tunnel tube body, and a first-stage vibration damping device, a second-stage vibration damping device and a connection assembly are arranged on the load-bearing steel frame plate; the data center module is arranged inside the connection assembly; The first-stage vibration damping device includes a support damping spring and a rubber damping support disk arranged between the load-bearing steel frame plate and the connection assembly; the second-stage vibration damping device includes a magnetorheological damper and a vertical hydraulic rod arranged between the rubber damping support disk and the connection assembly.

2. The multi-level collaborative vibration damping device for the floating underwater data center according to claim 1, wherein: The floating tunnel tube body is connected and fixed underwater through anchor cables.

3. The multi-stage collaborative vibration damping device for a floating underwater data center according to claim 1, wherein: The connection assembly includes a first-stage upper connecting plate, a first-stage lower connecting plate, a vertical connecting plate, a second-stage upper connecting plate and a second-stage lower connecting plate; the first-stage upper connecting plate and the first-stage lower connecting plate are connected through the vertical connecting plate; the data center module is installed between the first-stage upper connecting plate and the first-stage lower connecting plate; The second-stage upper connecting plate is arranged below the first-stage lower connecting plate; the magnetorheological damper and the vertical hydraulic rod are arranged between the second-stage upper connecting plate and the second-stage lower connecting plate; The support damping spring is arranged between the first-stage lower connecting plate and the load-bearing steel frame plate; The rubber damping support disk is arranged below the second-stage lower connecting plate.

4. The multi-level collaborative vibration damping device for the floating underwater data center according to claim 1, wherein: A bottom support is further arranged below the rubber damping support disk, and the bottom support is fixedly connected with the load-bearing steel frame plate.

5. The multi-level collaborative vibration damping device of the floating underwater data center according to claim 1, characterized in that: There are four groups of the second-stage vibration damping devices and the corresponding second-stage upper connecting plates and second-stage lower connecting plates, which are respectively arranged at the four corners of the first-stage lower connecting plate.

6. The multi-level collaborative vibration damping device for a floating underwater data center according to claim 5, wherein: Each group of the second-stage vibration damping devices has four magnetorheological dampers inclined in different directions; the magnetorheological dampers are respectively connected with the second-stage upper connecting plate and the second-stage lower connecting plate through connecting seats and connecting rods at both ends.

7. The multi - level collaborative vibration damping device for a floating underwater data center according to claim 5, wherein: The magnetorheological damper includes a magnetorheological damper end cover, a piston, a magnetic flow ring and magnetorheological fluid; the magnetic flow ring and the magnetorheological fluid are arranged at the rod end of the piston, and the magnetorheological damper end cover is used for sealing the rod end of the piston; a vacuum chamber is formed at the rodless end of the piston; the magnetic field intensity of the magnetic flow ring is adjustable, so as to change the rheological characteristics of the magnetorheological fluid and adjust its own damping force.

8. The multi-level collaborative vibration damping device for a floating underwater data center according to claim 5, characterized in that: The vertical hydraulic rod in each group of the second-stage vibration damping devices is arranged at the center of the four magnetorheological dampers, one end of which is connected with the second-stage upper connecting plate and the other end is connected with the second-stage lower connecting plate.

9. A multi-level collaborative vibration damping method for a floating underwater data center, characterized in that: Based on the multi-stage collaborative vibration damping device for a floating underwater data center according to any one of claims 1-8, the method includes the following steps: Step 1: Install a multi-stage vibration damping structure between the tube body of the floating underwater data center and the data center module; Step 2: According to the structural characteristics of the data center and the equipment operation parameters, debug the magnetorheological damper to determine its damping performance under different magnetic field intensities; Step 3: When the tube body vibrates due to external wave forces and impact forces, the vibration is sequentially transmitted to the load-bearing steel frame plate; the load-bearing steel frame plate transmits the vibration energy to the support damping spring through the connection device to initially buffer the vibration and reduce the vibration energy; subsequently, the rubber damping support disk further absorbs and dissipates the vibration energy to achieve the initial reduction of the vibration; Step 4: The vibration energy after the first-stage vibration reduction is used to squeeze the magnetorheological damper and the vertical hydraulic rod through the connecting component; the magnetorheological damper adjusts the damping force according to the magnetic field strength to adapt to different vibration conditions and further cancel out multi-directional vibrations; the vertical hydraulic rod cooperates with the support damping spring to provide support. Step 5: Finally, the remaining tiny vibrations are isolated through the bottom support to ensure that the data center module operates in a stable environment.