A multi-disaster tmdi vibration reduction device for an absorption tower and a vibration reduction method thereof

Abstract

The application discloses a kind of multi-disaster TMDI damping devices for absorption tower, including multiple groups of identical structure damping units, multiple groups of damping units are uniformly and symmetrically arranged along the tower wall of absorption tower, each group of damping units includes pad, is fixed on the upper portion of tower body wall;Angle adjusting assembly is hinged between one end of the pad;Mass piece, the upper portion of which is hinged to the other end of the angle adjusting assembly;Angle adjusting assembly is used to adjust the distance between mass piece and tower body wall;And elastic support unit, viscoelastic damper and inerter are sequentially arranged from top to bottom and connected below the angle adjusting assembly;Inerter includes runner and steel rope, runner is fixed on tower wall by support frame, one end of steel rope is connected with mass piece, and the other end is connected to runner.The device greatly improves the resistance of absorption tower under wind load, seismic load and the safety and stability of structure under multi-disaster action.

Description

Technical Field

[0001] This invention belongs to the field of disaster prevention for large and complex infrastructure, and relates to a multi-hazard TMDI vibration reduction device and its vibration reduction method for absorption towers. Background Technology

[0002] Absorption towers are key equipment in the field of carbon capture and storage (CFS). As thin-walled, variable-section tower structures, vibration-induced structural damage not only results in economic losses but, more seriously, causes environmental damage. Absorption towers contain large amounts of chemical solutions and high concentrations of harmful gases; once the structure is damaged, the consequences are unimaginable.

[0003] Absorption towers are thin-walled, variable cross-section tower structures, making them susceptible to earthquakes and wind loads. For traditional TMD dampers, a larger mass plate generally results in better vibration reduction. However, given the characteristics of these absorption towers and the complexity of their operating environment, TMD dampers with larger mass plates are impractical during installation. Furthermore, neither traditional TMD dampers nor other vibration reduction devices are particularly effective at mitigating the multi-hazard impacts on this type of structure.

[0004] Thin-walled variable cross-section tower structures often operate in high-temperature and high-pressure environments. Their interiors are typically filled with grout and have limited space, making them susceptible to seismic and wind loads. If the structure is damaged by vibration, leakage of the internal grout and other chemical liquids could have disastrous consequences. Currently, the most common measure to address structural vibration damage is the installation of vibration isolation devices. However, adding isolation devices at the base of the structure increases the overall displacement, which is extremely disadvantageous for structures with a large length-to-diameter ratio. Furthermore, traditional damping devices are difficult to implement effectively due to space constraints. Existing vibration isolation devices for this type of structure have the following problems:

[0005] 1. The vibration reduction effect is singular, targeting only a single wind load or seismic load, making it difficult to achieve vibration reduction effects under multiple disasters.

[0006] 2. Limited installation space and working environment restrict the coordinated operation of dampers, making it difficult to guarantee the overall structural stability even if vibration reduction is achieved. Chinese patent CN 113622539 B discloses a TMD vibration reduction device with a steel wire rope isolator. This patent achieves vibration control of the structure by using a stainless steel wire rope isolator to replace suspension elements, spring elements, and damping elements. However, this patent still has the following technical problems: 1. When using steel wire rope suspension, the overall stability of the vibration reduction device is poor when the load is applied to the structure from different directions. 2. This structure only targets vibration control under wind loads, resulting in a limited vibration control effect. Summary of the Invention

[0007] To address the aforementioned technical problems, this invention proposes a multi-hazard TMDI vibration reduction device for absorption towers. This device reduces structural vibrations caused by earthquakes, wind, and other airflow effects through the coordinated operation of a mass plate, damping unit, and elastic support unit. It also offers advantages such as small installation space and corrosion resistance.

[0008] To achieve the above objectives, the technical means adopted by the present invention are as follows:

[0009] A multi-hazard TMDI vibration damping device for an absorption tower includes multiple sets of identical vibration damping units, which are uniformly and symmetrically arranged along the tower wall of the absorption tower. Each set of vibration damping units includes:

[0010] The base plate is fixed to the upper part of the tower wall;

[0011] An angle adjustment assembly, one end of which is hinged to the pad;

[0012] A mass plate, the upper part of which is hinged to the other end of the angle adjustment assembly, the angle adjustment assembly being used to adjust the distance between the mass plate and the tower wall; and an elastic support unit, a viscoelastic damper, and an inertia container arranged sequentially from top to bottom below the angle adjustment assembly; the inertia container is mounted on the tower wall via a support frame and includes a wheel and a steel cable, the wheel being fixed on the support frame, one end of the steel cable being connected to the mass plate, and the other end being connected to the wheel;

[0013] When the absorption tower is subjected to vibration, its motion differential equation is as follows:

[0014]

[0015] Where M is the mass of the absorption tower, m is the tuning mass of the mass plate, X1 is the displacement of the absorption tower, X2 is the displacement of the mass plate, k1 and k2 are the stiffness coefficients of the absorption tower and the mass plate, respectively, c represents the damping coefficient of the viscoelastic damper, and the values ​​of F1(t) and F2(t) are divided into two groups, one group representing wind load and the other group representing seismic load; b is the mass gain of the inertial container.

[0016]

[0017] in Representing ground acceleration, the acceleration is transformed into a simple harmonic form through Fourier transform: Substituting equations (1) and (2), let the solution to the equation take the following form:

[0018] x1=X1e iωt x2=X2e iωt Introduce the following parameters

[0019]

[0020] Where μ represents the mass ratio of the absorber to the mass plate, λ represents the mass gain of the inertial container to the mass ratio of the absorber, and ω represents the excitation frequency. M ω represents the natural frequency of the absorption tower. m ξ represents the natural frequency of the vibration damping device. d β represents the damping ratio, β is the frequency ratio of the vibration damping device to the absorption tower, and γ is the frequency ratio of the excitation frequency to the absorption tower.

[0021] The dynamic amplification factor of the absorption tower

[0022]

[0023] The parameters A, B, and V are used in the simplified formula:

[0024] A=(1+μ)β 2 -γ 2

[0025] B = γ 4 -(1+μ+λ)β 4 γ 4 -γ 2 +β 2

[0026] V=[-γ 2 +(μ+λ)β 2 +1]

[0027] In the expression for the power amplification factor, μ,β,λ,ξ d These four parameters are selected and optimized based on actual needs and vibration reduction effect.

[0028] The angle adjustment assembly includes two connectors, namely a first connector and a second connector. One end of the first connector is hinged to the pad, and the other end of the first connector and one end of the second connector are rotatably connected. A through hole for a screw to pass through is provided at the connection between the first connector and the second connector. The screw is fixedly connected to the second connector by a connecting steel plate. Rotating the screw will cause the second connector to rotate relative to the first connector about the screw axis through the connecting steel plate. After the angle is adjusted, the angle is fixed by connecting locking nuts at both ends of the screw.

[0029] The number of vibration damping units is 4, and the 4 vibration damping units are evenly and symmetrically arranged on the tower wall of the absorption tower.

[0030] The mass sheet is a streamlined mass sheet.

[0031] The elastic support unit includes a guide rod and a spring, wherein one end of the guide rod is connected to the tower wall of the absorption tower, and the other end is suspended in the air;

[0032] The spring is coaxially sleeved on the outside of the guide rod. One end of the spring is connected to the tower wall of the absorption tower, and the other end is connected to the mass plate. After connection, a gap is left between the mass plate and the guide rod for the spring to compress.

[0033] The present invention further discloses a vibration reduction method based on the multi-hazard TMDI vibration reduction device for absorption towers, wherein when the absorption tower vibrates, the force is transmitted to the mass plate through the pad and the angle adjustment assembly;

[0034] The mass plates of the vibration damping unit are symmetrically arranged around the absorption tower. When the absorption tower vibrates, the vibration can be evenly transmitted to the mass plates from multiple directions, thereby ensuring the overall stability of the absorption tower when the mass plates absorb the vibration energy.

[0035] When the absorption tower encounters an earthquake or wind load and vibrates, the viscoelastic material in the viscoelastic damper will deform along with the damper because the viscoelastic damper is connected to the absorption tower. When the viscoelastic material deforms, some of the load input energy will be absorbed, thereby achieving the purpose of energy dissipation and vibration reduction.

[0036] When the mass plate absorbs energy and vibrates, the steel rope drives the wheel to rotate; due to the existence of rotational inertia, an inertial force is generated, providing an equivalent mass;

[0037] The inertial container is installed at the bottom of the absorption tower by a support frame, which can give full play to the inertial capacity of the inertial container;

[0038] The angle can be adjusted by the angle adjustment component, thereby adjusting the distance between the mass plate and the tower wall, providing more space for structural maintenance;

[0039] By presetting the angle using the angle adjustment component, the stiffness of the spring can be adjusted, thereby increasing the initial stiffness of the overall structure of the vibration damping unit.

[0040] Beneficial effects:

[0041] I. The overall control effect of the TMDI damper in this invention is affected by the frequency and mass ratio. By introducing an inertial container, the mass gain effect in the overall structure is further amplified, making it easier for the vibration reduction device to exhibit the frequency-dependent characteristics of a viscoelastic damper. Adjusting the preset angle of the components increases the initial stiffness, reducing the dependence on the loss factor of the viscoelastic material itself compared to the control effect under the same conditions. In addition, this invention also has the following technical effects:

[0042] 2. The vibration damping units of the present invention are symmetrically arranged on the outside of the absorption tower, which can effectively avoid the damage to the vibration damping device caused by the corrosion of the absorption tower and the complex working environment. At the same time, the installation space is more sufficient compared with traditional dampers.

[0043] III. The pad and angle adjustment assembly connected to the tower wall and the mass plate have good force transmission and rotation performance. Under normal use, this device can provide strong tensile force to ensure a stable connection between this type of absorption tower and the device of the present invention. When this type of absorption tower vibrates, the pad and angle adjustment assembly of the present invention can effectively transmit the force to the mass plate, and at the same time, due to its good force transmission and rotation performance, it can also dissipate some energy.

[0044] IV. The mass plates of this invention are designed in a streamlined shape, and their specific shape can be designed according to wind load calculations. When the absorption tower encounters wind loads, it can effectively reduce the effect of wind loads on the absorption tower. The mass plates of this invention are symmetrically arranged around the absorption tower, so when the structure vibrates, the vibration can be evenly transmitted to the mass plates from multiple directions. This ensures the overall stability of the absorption tower when the mass plates absorb vibration energy.

[0045] V. The damper of this invention employs a viscoelastic damper. When such an absorption tower encounters external loads such as earthquakes or wind and vibrates, the viscoelastic material in the damper deforms along with the damper because it is connected to the absorption tower. When the viscoelastic material deforms, a portion of the load energy is absorbed, thereby achieving energy dissipation and vibration reduction. Compared to traditional TMD vibration reduction devices, the frequency dependence of the storage modulus of the viscoelastic material brings better gain to the vibration reduction device.

[0046] VI. The inertial container of the device of this invention can provide sufficient equivalent mass for the mass plate. When the mass plate absorbs energy and vibrates, the steel rope drives the rotating wheel to rotate; due to the existence of rotational inertia, an inertial force is generated, providing equivalent mass. The inertial container is set at the bottom of the absorption tower by a support frame, which can better utilize the inertial capacity of the inertial container. There is sufficient installation space at the bottom of the absorption tower, and when the structure vibrates, the bottom is safer and more stable than other positions. Attached Figure Description

[0047] Figure 1 This is an isometric view of the device of the present invention;

[0048] Figure 2 This is a front view of the device of the present invention;

[0049] Figure 3 This is a top view of the device of the present invention;

[0050] Figure 4 A schematic diagram of the connection mechanism between the screw and the connecting steel plate;

[0051] Figure 5 This is a schematic diagram of the inertial container of the device of the present invention;

[0052] Among them, 1 is the tower wall, 1-1 is the pad, 2 is the angle adjustment component, 2-1 is the first connector, 2-2 is the second connector, 2-3 is the screw, 2-4 is the connecting steel plate, 3 is the mass plate, 4 is the spring, 5 is the guide rod, 6 is the viscoelastic damper, 6-1 is the outer shell, 6-2 is the inner shaft, 7 is the support frame, 8 is the inertia container, 8-1 is the wheel, and 8-2 is the steel rope. Detailed Implementation

[0053] The present invention can be better understood from the following embodiments. However, those skilled in the art will readily understand that the descriptions in the embodiments are for illustrative purposes only and should not and will not limit the invention as described in detail in the claims.

[0054] like Figure 1 As shown, the multi-hazard TMDI vibration reduction device for absorption towers according to the present invention mainly consists of eight parts: tower wall 1, angle adjustment assembly 2, mass plate 3, spring 4, guide rod 5, viscoelastic damper 6, support frame 7, and inertia container 8. One end of the angle adjustment assembly 2 is hinged to the tower wall, and the other end is hinged to the mass plate. The support frame is fixedly connected to the bottom of the tower wall, and the inertia container is connected to the mass plate via a steel cable.

[0055] When the absorption tower is subjected to vibration, its motion differential equation is as follows:

[0056]

[0057] Where M is the mass of the absorption tower, m is the tuning mass of the mass plate, X1 is the displacement of the absorption tower, X2 is the displacement of the mass plate, k1 and k2 are the stiffness coefficients of the absorption tower and the mass plate, respectively, c represents the damping coefficient of the viscoelastic damper, and the values ​​of F1(t) and F2(t) are divided into two groups, one group representing wind load and the other group representing seismic load; b is the mass gain of the inertial container.

[0058]

[0059] in Representing ground acceleration, the acceleration is transformed into a simple harmonic form through Fourier transform: Substituting equations (1) and (2), let the solution to the equation take the following form:

[0060] x1=X1e iωt x2=X2e iωt Introduce the following parameters

[0061]

[0062] Where μ represents the mass ratio of the absorber to the mass plate, λ represents the mass gain of the inertial container to the mass ratio of the absorber, and ω represents the excitation frequency. M ω represents the natural frequency of the absorption tower. m ξ represents the natural frequency of the vibration damping device. d β represents the damping ratio, β is the frequency ratio of the vibration damping device to the absorption tower, and γ is the frequency ratio of the excitation frequency to the absorption tower.

[0063] The dynamic amplification factor of the absorption tower

[0064]

[0065] The parameters A, B, and V are used in the simplified formula:

[0066] A=(1+μ)β 2 -γ 2

[0067] B = γ 4 -(1+μ+λ)β 4 γ 4 -γ 2 +β 2

[0068] V=[-γ 2 +(μ+λ)β 2 +1]

[0069] In the expression for the power amplification factor, μ,β,λ,ξ d These four parameters are selected and optimized based on actual needs and vibration reduction effect.

[0070] Example 1:

[0071] The angle adjustment component 2 provides load-bearing capacity for the mass plate of the vibration damping device, while ensuring the stability of the device during vibration. When wind loads act on the structure, thanks to the streamlined design and symmetrical arrangement of the mass plate, the device can effectively reduce wind load resistance. Furthermore, due to the overall planar symmetry of the structure, the change in lateral force is within a controllable range when the wind direction angle changes, thus avoiding galloping.

[0072] Spring 4 provides a certain stiffness to the device of the present invention, and the spring parameters can be selected according to the optimized design of the vibration reduction system.

[0073] The viscoelastic damper 6 provides damping for the device of the present invention and plays a certain role in energy dissipation.

[0074] When the structure vibrates, the mass plate transfers energy to itself, thereby reducing the structural vibration. The steel cables connected to the mass plate and inertia container are tensioned (pre-tensioned / pulled) to prevent relative slippage when the rotating wheel rotates. When the streamlined mass plate moves, it drives the rotating wheel to rotate via the steel cables. Utilizing the wheel for translational-rotational conversion creates a mass-enhancing effect, providing the mass plate with more sufficient equivalent mass and further improving the vibration reduction effect.

[0075] Example 2:

[0076] The base plate 1-1 is welded to the tower wall 1. The welded base plate is made of high-strength steel plate. The thickness of the welded steel plate is approximately 6mm.

[0077] The angle adjustment component 2 of this invention can be made of stainless steel, aluminum alloy, high-strength alloy, or other materials with certain corrosion resistance. The two connectors have a symmetrical structure and are U-shaped in both top and side views.

[0078] The angle adjustment assembly 2 includes two connectors, a screw, and a connecting plate. One end of the first connector 2-1 is hinged to the pad 1-1, and the other end of the first connector 2-1 has a through hole for the screw 2-3 to pass through. The screw 2-3 is fixedly connected to the second connector 2-2 via a connecting steel plate 2-4. Rotating the screw 2-3 causes the second connector 2-2 to rotate relative to the first connector 2-1 about the axis of the screw 2-3 via the connecting steel plate 2-4. After the angle is adjusted, locking nuts are connected to both ends of the screw 2-3 to lock the screw and the first connector, thereby fixing the angle.

[0079] Angle adjustment component 2 is connected to pad 1-1 at one end and to mass plate 3 at the other end, both ends being hinged. An adjustment component 2-2 is provided between the two connectors, allowing for arbitrary adjustment of the included angle between them. The ends of the pad and mass plate on each angle adjustment component are welded together.

[0080] Four symmetrically arranged streamlined mass plates 3 are designed with a height consistent with the working area of ​​the tower (excluding the flue gas inlets and outlets at the bottom and top). The mass plates are equipped with connection holes for easy hinged connections. The specific shape characteristics of the mass plates can be calculated and designed according to local wind loads, and must refer to the requirements of "General Code for Engineering Structures" GB 55001-2021 and "Load Code for Building Structures" GB50009-2012.

[0081] The elastic support unit includes a spring 4 and a guide rod 5. The guide rod serves to limit the movement of the spring, effectively preventing it from bending vertically. The design and selection of the spring should meet the relevant requirements of the Technical Specification for Energy Dissipation and Vibration Reduction of Buildings (JGJ297-2013).

[0082] The damping unit of this invention is a viscoelastic damper 6, which utilizes the deformation of viscoelastic materials to dissipate energy, thereby reducing structural vibration. The viscoelastic damper is composed of an outer shell 6-1, an inner shaft 6-2, and viscoelastic materials bonded together by vulcanization. The relevant dimensions of the guide rod and cylinder of the viscoelastic damper can be designed according to the vibration reduction requirements. The support frame 7 is arranged at the bottom of the absorption tower structure, while avoiding areas such as flue gas inlets / outlets and pipe connections. The support frame is fixedly connected to the tower wall with bolts. The inertia container 8 includes a rotating wheel 8-1 and a steel cable 8-2, and is fixedly connected to the support frame. The inertia container is symmetrical.

[0083] To maximize the gain of the inertial container, the mass distribution of the wheel is uneven, with less mass on the side connected to the steel cable. One end of the steel cable is connected to the mass plate, and the other end is connected to the wheel and reinforced to prevent slippage between the steel cable and the wheel, thereby ensuring the effectiveness of the inertial container's rotation.

[0084] The present invention provides a vibration reduction method based on the multi-hazard TMDI vibration reduction device for absorption towers, wherein when the absorption tower vibrates, the force is transmitted to the mass plate through the pad and the angle adjustment assembly;

[0085] The mass plates of the vibration damping unit are symmetrically arranged around the absorption tower. When the absorption tower vibrates, the vibration can be evenly transmitted to the mass plates from multiple directions, thereby ensuring the overall stability of the absorption tower when the mass plates absorb the vibration energy.

[0086] When the absorption tower encounters an earthquake or wind load and vibrates, the viscoelastic material in the viscoelastic damper will deform along with the damper because the viscoelastic damper is connected to the absorption tower. When the viscoelastic material deforms, some of the load input energy will be absorbed, thereby achieving the purpose of energy dissipation and vibration reduction.

[0087] When the mass plate absorbs energy and vibrates, the steel rope drives the wheel to rotate; due to the existence of rotational inertia, an inertial force is generated, providing an equivalent mass;

[0088] The inertial container is installed at the bottom of the absorption tower by a support frame, which can give full play to the inertial capacity of the inertial container;

[0089] The angle can be adjusted by the angle adjustment component, thereby adjusting the distance between the mass plate and the tower wall, providing more space for structural maintenance;

[0090] By presetting the angle using the angle adjustment component, the stiffness of the spring can be adjusted, thereby increasing the initial stiffness of the overall structure of the vibration damping unit.

Claims

1. A multi-hazard TMDI vibration damping device for an absorption tower, comprising multiple sets of identical vibration damping units, the multiple sets of vibration damping units being uniformly and symmetrically arranged along the tower wall of the absorption tower, characterized in that, Each vibration damping unit includes: The base plate is fixed to the upper part of the tower wall; An angle adjustment assembly, one end of which is hinged to the pad; A mass plate, the upper part of which is hinged to the other end of the angle adjustment assembly, the angle adjustment assembly being used to adjust the distance between the mass plate and the tower wall; and an elastic support unit, a viscoelastic damper, and an inertia container arranged sequentially from top to bottom below the angle adjustment assembly; the inertia container is mounted on the tower wall via a support frame and includes a wheel and a steel cable, the wheel being fixed on the support frame, one end of the steel cable being connected to the mass plate, and the other end being connected to the wheel; When the absorption tower is subjected to vibration, its motion differential equation is as follows: Where M is the mass of the absorption tower, m is the tuning mass of the mass plate, X1 is the displacement of the absorption tower, X2 is the displacement of the mass plate, k1 and k2 are the stiffness coefficients of the absorption tower and the mass plate, respectively, c represents the damping coefficient of the viscoelastic damper, and the values ​​of F1(t) and F2(t) are divided into two groups, one group representing wind load and the other group representing seismic load; b is the mass gain of the inertial container. F1(t)=f,F2(t)=0; in Representing ground acceleration, the acceleration is transformed into a simple harmonic form through Fourier transform: Substituting equations (1) and (2), let the solution to the equation take the following form: x1=X1e iωt x2=X2e iωt Introduce the following parameters Where μ represents the mass ratio of the absorber to the mass plate, λ represents the mass gain of the inertial container to the mass ratio of the absorber, and ω represents the excitation frequency. M ω represents the natural frequency of the absorption tower. m ξ represents the natural frequency of the vibration damping device. d β represents the damping ratio, β is the frequency ratio of the vibration damping device to the absorption tower, and γ is the frequency ratio of the excitation frequency to the absorption tower. The dynamic amplification factor of the absorption tower is: The parameters A, B, and V are used in the simplified formula: A=(1+μ)β 2 -c 2 B=γ 4 -(1+μ+λ)b 4 c 4 -c 2 +b 2 V=[-γ 2 +(μ+λ)β 2 +1] In the expression for the power amplification factor, μ, β, λ, ξ d These four parameters are selected and optimized based on actual needs and vibration reduction effect.

2. The multi-hazard TMDI vibration damping device for absorption towers according to claim 1, characterized in that, The angle adjustment assembly includes two connectors, namely a first connector and a second connector. One end of the first connector is hinged to the pad, and the other end of the first connector and one end of the second connector are rotatably connected. A through hole for a screw to pass through is provided at the connection between the first connector and the second connector. The screw is fixedly connected to the second connector by a connecting steel plate. Rotating the screw will cause the second connector to rotate relative to the first connector about the screw axis through the connecting steel plate. After the angle is adjusted, the angle is fixed by connecting locking nuts at both ends of the screw.

3. The multi-hazard TMDI vibration damping device for absorption towers according to claim 2, characterized in that, The number of vibration damping units is 4, and the 4 vibration damping units are evenly and symmetrically arranged on the tower wall of the absorption tower.

4. The multi-hazard TMDI vibration damping device for absorption towers according to claim 1, characterized in that, The mass sheet is a streamlined mass sheet.

5. The multi-hazard TMDI vibration damping device for absorption towers according to claim 1, characterized in that, The elastic support unit includes a guide rod and a spring, wherein one end of the guide rod is connected to the tower wall of the absorption tower, and the other end is suspended in the air; The spring is coaxially sleeved on the outside of the guide rod. One end of the spring is connected to the tower wall of the absorption tower, and the other end is connected to the mass plate. After connection, a gap is left between the mass plate and the guide rod for the spring to compress.

6. A vibration reduction method based on the multi-hazard TMDI vibration reduction device for absorption towers as described in any one of claims 1 to 5, characterized in that, When the absorption tower vibrates, the force is transmitted to the mass plate through the pad and angle adjustment assembly; The mass plates of the vibration damping unit are symmetrically arranged around the absorption tower. When the absorption tower vibrates, the vibration can be evenly transmitted to the mass plates from multiple directions, thereby ensuring the overall stability of the absorption tower when the mass plates absorb the vibration energy. When the absorption tower encounters an earthquake or wind load and vibrates, the viscoelastic material in the viscoelastic damper will deform along with the damper because the viscoelastic damper is connected to the absorption tower. When the viscoelastic material deforms, some of the load input energy will be absorbed, thereby achieving the purpose of energy dissipation and vibration reduction. When the mass plate absorbs energy and vibrates, the steel rope drives the wheel to rotate; due to the existence of rotational inertia, an inertial force is generated, providing an equivalent mass; The inertial container is installed at the bottom of the absorption tower by a support frame, which can give full play to the inertial capacity of the inertial container; The angle can be adjusted by the angle adjustment component, thereby adjusting the distance between the mass plate and the tower wall, providing more space for structural maintenance; By presetting the angle using the angle adjustment component, the stiffness of the spring can be adjusted, thereby increasing the initial stiffness of the overall structure of the vibration damping unit.

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