Annular vibration reduction tuned mass damper

Abstract

The utility model discloses an annular vibration reduction tuned mass damper which comprises a vibration reduction assembly and a fastener. The vibration reduction assembly is installed on the annular equipment through the fastener, and tuning energy absorption is conducted on the annular equipment through the vibration reduction assembly. The vibration reduction assembly comprises a hoop, an elastic body and a mass block. The hoop is a circular ring-shaped component, the hoop is sleeved on the annular equipment, the mass block is installed on the annular equipment through the fastening piece, and the elastic body is installed between the hoop and the mass block. The tuning mass damper has the advantages that the structure is tightly attached to the outer surface of annular equipment, the occupied space is small, equipment vibration is reduced through tuning energy absorption and damping energy consumption of the tuning mass damper, and the problem that vibration is violent due to equipment vibration is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vibration reduction, and in particular relates to an annular vibration reduction tuned mass damper. Background Art

[0002] Vibration issues with circular equipment components, such as pipelines, are common in various engineering structures and mechanical systems. The hazards caused by vibration of these components are multifaceted, not only damaging the pipelines themselves but also impacting the operation of connected equipment, leading to a series of safety hazards. Long-term pipeline vibration can cause uneven output in the system's main equipment, disrupting its mechanical performance and normal operation. Therefore, properly addressing pipeline vibration issues has become a key concern during equipment operation.

[0003] Currently, solutions for vibration issues in circular equipment components like pipes primarily include modifying the pipe structure and adding air buffer tanks. Once the equipment is operational, these solutions are often implemented by adding support components or installing vibration isolation pads. However, for pipes with limited installation space, these solutions may not be effective.

[0004] A Chinese patent with the announcement number CN109027425B discloses a high-damping alloy metamaterial pipeline vibration and noise reduction device, which consists of a high-damping alloy metamaterial clamp passing through both ends of the fluid delivery pipeline and a high-damping alloy metamaterial ring rib passing through the middle section of the fluid delivery pipeline that is prone to vibration. The high-damping alloy metamaterial clamp includes a porous structure clamp support, a high-damping alloy metamaterial clamp block fixed above or below the porous structure clamp support for fixing the fluid delivery pipeline, and the inner diameter of the columnar cavity of the clamp block is adapted to the outer diameter of the fluid delivery pipeline. The inner diameter of the columnar cavity of the high-damping alloy metamaterial ring rib is adapted to the outer diameter of the fluid delivery pipeline. The above device is not suitable for damper installation in complex environments, and the number of vibration reduction components cannot be adjusted according to demand. Therefore, it is urgent for those skilled in the art to solve the above technical problems. Summary of the Invention

[0005] The utility model provides an annular vibration-reducing tuned mass damper in order to solve the problems of complex environment and narrow installation space of annular equipment components such as pipelines.

[0006] The technical solutions adopted in this utility model are:

[0007] A ring-shaped vibration-damping tuned mass damper comprises a vibration-damping assembly and a fastener; the vibration-damping assembly is mounted on a ring-shaped device via the fastener, and the ring-shaped device is tuned and energy-absorbed by the vibration-damping assembly; the vibration-damping assembly comprises a clamp, an elastomer, and a mass block; the clamp is a circular ring-shaped component, the clamp is sleeved on the ring-shaped device, the mass block is mounted on the ring-shaped device via the fastener, and the elastomer is mounted between the clamp and the mass block.

[0008] By employing the above-mentioned technical solution, with the elastic body mounted between the clamp and the mass, the device effectively absorbs and dissipates vibration energy transmitted by the ring-shaped equipment. Because the mass can be tuned to match the excitation frequency causing the vibration, it can more effectively reduce the vibration amplitude, thereby achieving better vibration and noise reduction. The vibration reduction assembly can be directly installed on existing ring-shaped equipment and secured with fasteners, significantly simplifying the installation process. No major modifications to existing piping or equipment are required, reducing installation costs and complexity, while also facilitating future maintenance and replacement. The design allows the position and orientation of the mass to be adjusted according to specific vibration conditions to ensure optimal vibration reduction performance. For example, if vibration occurs primarily along the axial direction, the connection between the elastic body and the mass can be adjusted parallel to the axial direction. For horizontal or vertical vibration, a perpendicular connection can be used. The clamp utilizes at least one curved section and is connected via fasteners, reducing the number of joints and improving the overall structural strength and reliability. Furthermore, the integrated mass design reduces potential failure points and enhances the durability of the device, especially in harsh operating environments. This design is suitable for various types of ring-shaped equipment, including but not limited to pipes and valves. Whether it is a new project or an upgrade of existing facilities, this vibration reduction technology can be easily applied to meet different engineering needs.

[0009] Furthermore, the clamp is composed of at least one arc-shaped structure, and both ends of the clamp are connected together by the fastener.

[0010] Furthermore, at least one elastic body is provided, and each elastic body is clamped between the clamp and the mass block.

[0011] By adopting the above technical solution, multiple elastomers can be installed to distribute vibration energy more evenly. This helps improve the vibration reduction efficiency of the entire system, as energy absorption at multiple points is more effective than at a single location. Furthermore, the position and number of elastomers can be adjusted according to the actual vibration conditions to achieve optimal tuning. The snap-on connection ensures a secure and stable installation of the elastomers, preventing them from shifting, reducing the risk of failure due to loosening or falling out. This connection method not only simplifies the assembly process but also ensures that even if one elastomer fails, the others will continue to function, thereby increasing the redundancy and reliability of the overall system. The presence of multiple elastomers distributes the applied force over a larger area, preventing fatigue damage caused by excessive stress on a single point. This is particularly important for equipment in long-term operation, as it can extend the service life of the elastomers and other components. Elastomers with different properties (such as hardness and material type) can be combined to meet different vibration frequency and amplitude requirements. For example, in some cases, a softer elastomer may be required to handle high-frequency, low-amplitude vibrations; in other scenarios, a harder elastomer may be more suitable for low-frequency, high-amplitude vibrations. The multi-elastomer design allows for flexible adjustment to specific circumstances.

[0012] Furthermore, the elastic body is made of metal material, plastic material, rubber, or the elastic body is made of a combination of metal, rubber, and steel wire rope.

[0013] By employing the above-mentioned technical solutions, metal springs offer strong stiffness and excellent stability, making them ideal for carrying heavy loads and high-frequency vibrations. Within their elastic range, metal springs exhibit linear response, facilitating prediction and design, and facilitating ease of use. Furthermore, metal materials tend to be highly durable and have a long service life, making them suitable for use in harsh environments. Thermoplastic elastomers (TPEs) exhibit excellent flexibility and elastic recovery, making them suitable for low- to medium-frequency vibrations. Many TPE materials are recyclable, contributing to environmental pollution reduction. Rubber materials have high internal damping, effectively absorbing vibration energy. Their hardness can be adjusted over a wide range, from extremely soft to quite firm, allowing the appropriate hardness to be selected based on specific application requirements. Metal-rubber combines the advantages of both metal and rubber, offering the rigidity and stability of metal with the damping and elastic properties of rubber. This allows for excellent adaptability in high-temperature or chemically corrosive environments, making it suitable for specialized operating conditions.

[0014] Furthermore, the mass block is made of at least one section of arc-shaped composite material, and the mass block is installed below the clamp or outside the clamp.

[0015] By adopting the above technical solutions, the one-piece structure is generally stronger than the assembled structure because it reduces seams and connection points, which may be weak links in the structure. This means that the one-piece mass block can withstand greater forces and stresses without deformation or damage. When the mass block is made up of multiple components connected by bolts, welding or other means, these connections may become additional sources or paths of vibration. The one-piece structure eliminates these connections, thereby reducing the unintended transmission of vibration energy. The one-piece design means that during the manufacturing and installation process, there is no need to align and fix multiple independent components, which greatly simplifies the assembly process, reduces the risk of errors, and saves time and costs. Since there are no movable connectors, the mass block of the one-piece structure will not fail due to loose bolts or component wear, which improves the reliability and life of the entire system. According to the different vibration directions of annular equipment components such as pipelines, the connection direction of the rubber block and the clamp must be adjusted synchronously. If the pipe or other annular equipment component is vibrating in the axial direction, the connection direction between the rubber block and the clamp should be parallel to the axial direction of the pipe or other annular equipment component; if the pipe or other annular equipment component is vibrating in the horizontal or vertical direction, the connection direction between the rubber block and the clamp should be perpendicular to the axial direction of the pipe or other annular equipment component.

[0016] The utility model has the following beneficial effects:

[0017] 1. By clamping at least one elastic body between the clamping hoop and the mass, this utility model can more evenly distribute vibration energy and optimize the system's vibration absorption capacity. The presence of multiple elastic bodies allows for more precise adjustment of the system's natural frequency to better match the target vibration frequency, thereby achieving more effective vibration and noise reduction. Flexible combination configurations of elastic bodies with different characteristics (such as hardness and material type) can provide customized vibration control solutions based on specific working conditions.

[0018] 2. The utility model can be closely attached to the surface of annular equipment components such as pipes and can be installed in a narrow environment. It has a wide range of applications and can well cope with various usage scenarios. The installation of the tuned mass damper is simple and convenient. The vibration reduction device is firmly fixed to annular equipment components such as pipes using a clamp. This method effectively reduces the stringent requirements for the installation environment, making the device easy to install after the equipment is put into production and operation, providing convenient conditions for the later maintenance and optimization of the equipment.

[0019] 3. The elastomers of the utility model are installed by snap-fitting, which ensures their stability during operation, reduces the risk of loosening or falling off, and improves the reliability of the entire device. Even if an individual elastomer fails, the other elastomers can continue to work, increasing the redundancy of the system. This design makes the elastomers easy to disassemble and replace, and damaged parts can be maintained or replaced individually without disassembling the entire device, which greatly simplifies the maintenance process and reduces maintenance costs and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the installation of the present utility model.

[0021] Figure 2 It is a structural diagram of the present utility model.

[0022] Figure 3 The structure of the embodiment of the utility model is shown in FIG. Figure 1 .

[0023] Figure 4 The structure of the embodiment of the utility model is shown in FIG. Figure 2 .

[0024] Figure 5 The structure of the embodiment of the utility model is shown in FIG. Figure 3 .

[0025] In the figure: 1-vibration damping assembly; 11-clamp; 12-elastic body; 13-mass block; 2-annular equipment component; DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific preferred embodiments.

[0027] In the description of the present invention, it should be understood that the terms "left side," "right side," "upper," "lower," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Terms such as "first" and "second" do not indicate the importance of a component and therefore should not be construed as limiting the present invention. The specific dimensions used in this embodiment are merely for illustrative purposes and do not limit the scope of protection of the present invention.

[0028] Reference Figure 1As can be seen, the present invention provides an annular tuned mass damper. The damping assembly 1 comprises a clamp 11, an elastic body 12, and a mass 13. These components are mounted to an annular device 2 using fasteners 3, such as bolts, nuts, or other types of fixing devices. This ensures the entire damping assembly is securely attached to the annular device and allows for adjustment or removal when necessary. The clamp 11 is a circular ring-shaped component designed with at least one arc-shaped section. Its two ends are connected together by fasteners 3 to form a complete ring. It closely conforms to the shape of the annular device 2 and provides a stable base platform for supporting other components. Its primary function is to securely secure the entire damping assembly to the annular device. At least one elastic body 12 is provided, each of which is clamped between the clamp 11 and the mass 13. The design is easy to assemble and disassemble, rather than welded or permanently bonded. As a key component for absorbing vibration energy, the clamp 11 is made of a flexible material choice, including metal, plastic, rubber, or a combination of these with steel wire rope. It is suitable for various vibration conditions and environmental conditions, offering a wide range of adaptability and customization options. The mass block 13 is made of at least one section of arc-shaped composite material and is installed below or outside the clamp 11. It increases the inertia of the system and helps adjust the system's natural frequency to match or approach the excitation frequency that causes vibration, thereby effectively dissipating vibration energy. Its integrated design reduces the number of seams and connection points, improving the strength and reliability of the overall structure, while simplifying the manufacturing and installation process. The clamp 11 is mounted on the annular device 2 and fixed by fasteners 3. The elastomer 12 is located between the clamp 11 and the mass block 13 and is fixed by a snap-fit ​​method, which allows for easy replacement or adjustment of the elastomer without removing the clamp. The mass block 13 is also installed on the clamp 11 by fasteners 3. The position can be selected to be installed below or outside the clamp according to actual needs. The fasteners 3 run through all components to ensure that they are tightly combined as a whole, and the degree of tightening can be adjusted as needed to ensure optimal working conditions.

[0029] The clamp 11, elastic body 12, mass block 13 and fastener 3 are composed of the clamp 11. The clamp 11 is a key component for installing the equipment. Its function is to provide a stable platform for the equipment to ensure its normal operation.

[0030] The elastomer 12 is a material with good elasticity, such as rubber, spring, etc., and its main function is to absorb the vibration energy generated when the equipment is running;

[0031] The mass 13 is an object with a certain weight, which can reduce the vibration of the device by interacting with the elastic body;

[0032] When using this vibration damping device, first fix the clamp 11 to an annular device such as a pipe, and then install the elastic body 12 between the clamp 11 and the mass block 13;

[0033] The mass 13 can be of an integral or composite structure, with a weight and shape designed according to the vibration characteristics of the equipment, and the elastic body 12 with the fixed mass 13 is placed above the clamp 11, which can be a metal spring, TPE, rubber, metal rubber or steel wire rope, etc., and the appropriate material and structure are selected according to the needs, and the clamp 11 is connected with the elastic body 12 by using bolts, so as to ensure that the installation is stable and the elastic body is in a pre-compressed state, so as to facilitate energy absorption, and the fastener 3 can be a bolt or other appropriate connecting piece, so as to ensure that the clamp 11 is firmly installed on the annular equipment such as a pipeline. Through the reasonable design of the above structure, the combination of the elastic body 12 and the mass 13 can be tuned to the specific vibration frequency of the equipment, so as to absorb and dissipate vibration energy, reduce the vibration amplitude of the equipment, and achieve the purpose of vibration reduction and noise reduction; the separately arranged vibration reduction device simplifies the installation process, is fixed to the outside of the pipeline, reduces the modification to the internal structure of the pipeline, is convenient for maintenance and upgrading, and can be applied to various pipeline vibration equipment, and is customized according to the specific needs of the equipment, so as to improve the vibration reduction effect;

[0034] With reference to Figure 3 and Figure 4 It can be known that, in the embodiments, the vibration reduction device of the utility model can be installed on annular equipment such as a pipeline and a valve, and the clamp 11 can be reliably fixed on the equipment 2;

[0035] With reference to Figure 5 It can be known that, in one embodiment, the vibration reduction device of the utility model can adjust the installation mode according to the vibration direction of the equipment, for example: when the vibration direction of the equipment is perpendicular to the horizontal or vertical direction of the cross section of the annular equipment, the compression direction of the elastic body 12 is parallel to the vibration direction, and the installation direction of the vibration reduction device also needs to be adjusted to be parallel to the vibration direction;

[0036] The above describes the preferred embodiments of the utility model, but the utility model is not limited to the specific details in the above embodiments, and various equivalent transformations can be made to the technical solutions of the utility model within the technical concept of the utility model, and these equivalent transformations all belong to the protection scope of the utility model.

Claims

1. An annular vibration-reducing tuned mass damper, characterized in that: The invention comprises a vibration reduction component (1) and a fastener (3); the vibration reduction component (1) is mounted on an annular device (2) via the fastener (3), and the annular device (2) is tuned and energy-absorbed by the vibration reduction component (1); the vibration reduction component (1) comprises a clamp (11), an elastic body (12), and a mass block (13); the clamp (11) is a circular ring component, the clamp (11) is sleeved on the annular device (2), the mass block (13) is mounted on the annular device (2) via the fastener (3), and the elastic body (12) is mounted between the clamp (11) and the mass block (13).

2. The annular vibration-reducing tuned mass damper according to claim 1, characterized in that: The hoop (11) is composed of at least one arc-shaped structure, and both ends of the hoop (11) are connected together via the fastener (3).

3. The annular vibration-reducing tuned mass damper according to claim 1, characterized in that: At least one elastic body (12) is provided, and each elastic body (12) is clamped between the clamp (11) and the mass block (13).

4. The annular vibration-reducing tuned mass damper according to claim 1, characterized in that: The elastic body (12) is made of metal material, plastic material, or rubber, or the elastic body (12) is made of a combination of metal, rubber, and steel wire rope.

5. The annular vibration-reducing tuned mass damper according to claim 1, characterized in that: The mass block (13) is made of at least one section of arc-shaped composite material, and the mass block (13) is installed below the hoop (11) or outside the hoop (11).

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