A frequency-tuned mass damper capable of modular assembly

Abstract

The present invention relates to the technical field of building shock absorption, and discloses a frequency-modulated mass damper that can be assembled in a modular manner. The present invention includes a connecting plate, a mass block, a spring, a guide rod, a guide rod shaft support, a viscous damper, a magnet and a C-shaped copper plate. The guide rod passes through the mass block and the springs on the upper and lower sides. The two ends of the guide rod are fixed with guide rod shaft supports, and the guide rod shaft supports are fixed to the connecting plate. The stationary ends of the viscous dampers on both sides are fixed to the connecting plate, and the movable ends are fixed to the mass block. The magnet is adsorbed on the side of the mass block, and the two ends of the C-shaped copper plate are fixed to the connecting plates on both sides. The magnets on each side and the C-shaped copper plate form a set of eddy current components. The present invention has a modular design and can be used individually or in multiple assemblies.

Description

Technical Field

[0001] The invention relates to the technical field of building shock absorption, in particular to a frequency-modulated mass damper which can be assembled in a modular manner. Background Art

[0002] In order to control the vertical vibration of long-span floor slabs under pedestrian excitation loads, frequency-tuned mass dampers are often used. Through the interaction between the frequency-tuned mass damper and the main structure, energy can be transferred from the main structure to the energy dissipation device in the frequency-tuned mass damper, thereby achieving the purpose of reducing the vibration of the main structure.

[0003] Within a certain range, the heavier the mass block of the frequency-tuned mass damper, the more obvious the vibration reduction effect. However, a heavier frequency-tuned mass damper places greater demands on design, production, and installation. For this reason, a frequency-tuned mass damper that can be assembled in a modular manner is designed. The frequency-tuned mass damper can be used individually or in multiple assemblies. Summary of the invention

[0004] In order to solve the technical problems existing in the above-mentioned prior art, the present invention provides a frequency-modulated mass damper which can be assembled in a modular manner.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a frequency-modulated mass damper that can be assembled in a modular manner, comprising a connecting plate, a mass block, a spring, a guide rod, a guide rod shaft support, a viscous damper, a magnet and a C-shaped copper plate, wherein the guide rod passes through the mass block and the springs on the upper and lower sides, guide rod shaft supports are fixed at both ends of the guide rod, the guide rod shaft support is fixed to the connecting plate, the stationary ends on both sides of the viscous damper are fixed to the connecting plate, and the movable end is fixed to the mass block, the magnet is adsorbed on the side of the mass block, the two ends of the C-shaped copper plate are fixed to the connecting plates on both sides, and the magnets on each side and the C-shaped copper plate form a set of eddy current components.

[0006] Preferably, mounting holes are provided around the connection plate for assembling and connecting a plurality of frequency-tuned mass dampers.

[0007] Preferably, the guide rod shaft support and the connecting plate, the damper and the connecting plate, the damper and the mass block, and the C-shaped copper plate and the connecting plate are all detachably connected, which is convenient for installation and disassembly, and it is convenient to add or remove dampers and eddy current components as needed.

[0008] Preferably, flange connections are adopted between the guide rod shaft support and the connecting plate, between the stationary end of the damper and the connecting plate, and between the movable end of the damper and the mass block, and bolt connections are adopted between the C-shaped copper plate and the connecting plate.

[0009] Preferably, two oblong holes are respectively provided at both ends of the C-shaped copper plate, and the bolts are installed in the oblong holes to adjust the distance from the C-shaped copper plate to the magnet.

[0010] Preferably, a T-joint is detachably fixed to the movable end of the viscous damper, and the T-joint is fixed by a flange and a connecting plate.

[0011] Preferably, the planar mounting positions of the four guide rods are symmetrically arranged along the plane center point of the tuned mass damper.

[0012] Preferably, the center points on both sides of the viscous damper coincide with the center point of the tuned mass damper in the plane position.

[0013] Preferably, the number and arrangement positions of the magnets installed on each side of the mass block are the same, and are left-right symmetrical with respect to the vertical center line of the side of the mass block.

[0014] Preferably, the projection width of each C-shaped copper plate installed on the side of the frequency-tuned mass damper is greater than the installation width of the magnet, and is symmetrical to the left and right of the vertical center line of the side of the mass block.

[0015] Preferably, the height, length and width of the tuned mass damper are the same, so that the tuned mass damper of a single module can be assembled horizontally and vertically at the same time.

[0016] The technical effects of the present invention are:

[0017] 1. A single tuned mass damper is easy to design and produce as a module, and can be used individually or in multiple assemblies as needed.

[0018] 2. All components of a single tuned mass damper are symmetrically arranged, with the same length, width and height. It can be installed vertically or horizontally when in use. Multiple tuned mass dampers can be assembled in a vertical or horizontal combination, or in a simultaneous combination. The ratio of horizontal and vertical installation can be adjusted as needed. The combined tuned mass damper can control both the vertical vibration and the lateral vibration of the structure.

[0019] 3. Freely choose to install the energy consumption system according to the needs. When the energy consumption requirement is high, choose to install 2 viscous dampers and 4 sets of eddy current components; when the energy consumption requirement is low, the number of viscous dampers or eddy current components can be appropriately reduced. It has high flexibility and a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the enlarged structure of one end of the C-shaped copper plate of the present invention;

[0023] Figure 4This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0026] Figure 7 This is a schematic diagram of the connection structure of the third embodiment of the present invention.

[0027] In the figure: 1. connecting plate; 2. mass block; 3. spring; 4. guide rod; 5. guide rod shaft support; 6. viscous damper; 7. T-joint; 8. magnet; 9. C-shaped copper plate; 10. bolt; 11. oblong hole; 12. mounting plate; 13. screw; 14. nut; 15. mounting hole. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0029] Embodiment: A frequency-tuned mass damper that can be assembled in a modular manner, such as Figure 1-Figure 3 As shown, it includes a connecting plate, a mass block, a spring, a guide rod, a guide rod shaft support, a viscous damper, a magnet and a C-shaped copper plate. The guide rod passes through the mass block and the springs on the upper and lower sides. Guide rod shaft supports are fixed at both ends of the guide rod, and the guide rod shaft support is fixed to the connecting plate. The stationary ends on both sides of the viscous damper are fixed to the connecting plate, and the movable end is fixed to the mass block. The magnet is adsorbed on the side of the mass block, and the two ends of the C-shaped copper plate are fixed to the connecting plates on both sides. The magnets on each side and the C-shaped copper plate form a set of eddy current components.

[0030] The connection plate is provided with mounting holes around it for assembling and connecting a plurality of frequency-tuned mass dampers.

[0031] The guide rod shaft support and the connecting plate, the damper and the connecting plate, the damper and the mass block, and the C-shaped copper plate and the connecting plate are all detachably connected, which is convenient for installation and disassembly, and it is convenient to add or reduce dampers and eddy current components as needed.

[0032] The guide rod shaft support and the connecting plate, the static end of the damper and the connecting plate, and the movable end of the damper and the mass block are connected by flanges, and the C-shaped copper plate and the connecting plate are connected by bolts.

[0033] Two oblong holes are respectively provided at both ends of the C-shaped copper plate, and the bolts are installed in the oblong holes to adjust the distance from the C-shaped copper plate to the magnet.

[0034] The movable end of the viscous damper is fixed with a T-joint, and the viscous damper and the T-joint are detachably connected by threads or buckles, and the T-joint is fixed by a flange and a connecting plate.

[0035] The plane installation position of the guide rod is symmetrically arranged along the plane center point of the frequency-tuned mass damper. Four guide columns are provided, which are respectively arranged at the four corners of the frequency-tuned mass damper.

[0036] The center points on both sides of the viscous damper coincide with the center point of the frequency-tuned mass damper in the plane position.

[0037] The number and arrangement positions of the magnets installed on each side of the mass block are the same, and are left-right symmetrical with respect to the vertical center line of the side of the mass block.

[0038] The projection width of each C-shaped copper plate installed on the side of the frequency-tuned mass damper is greater than the installation width of the magnet, and is symmetrical to the left and right of the vertical center line of the side of the mass block.

[0039] The height, length and width of the frequency-tuned mass damper are the same, so that the frequency-tuned mass damper of a single module can be assembled horizontally and vertically at the same time.

[0040] Embodiment 1: Figure 4 As shown, each single-module tuned mass damper is installed with two viscous dampers and four sets of eddy current components. The tuned mass damper is vertically installed in two layers, mainly used to control the vertical vibration of the structure.

[0041] Embodiment 2: Figure 5 As shown, the tuned mass damper is assembled in two layers, one layer is installed vertically and the other layer is installed horizontally, so as to simultaneously control the vertical and lateral vibrations of the structure.

[0042] Embodiment 3: Figure 6 As shown, the tuned mass damper is assembled in two layers, one layer is installed vertically, and the other layer is installed in combination of lateral and vertical, which is mainly used to control the vertical vibration of the structure while taking into account the lateral vibration.

[0043] like Figure 7 As shown, during assembly, the frequency-tuned mass dampers of each single module are fixed together with mounting plates, screws and nuts. The screws are inserted into the mounting holes of the connecting plates and are threadedly connected to them. The mounting plates can be straight plates or right-angle plates according to the structure of the installation location. The installation is simple and convenient, and it is detachable.

[0044] The present invention can be used individually or in multiple assemblies as needed. A single frequency-tuned mass damper can be installed vertically or horizontally when in use. Multiple frequency-tuned mass dampers can also be assembled vertically or horizontally, or simultaneously, and the ratio of horizontal and vertical installation can be adjusted as needed. The assembled frequency-tuned mass damper can control both the vertical vibration and the lateral vibration of the structure. In addition, the energy dissipation system can be freely selected for installation as needed. When the energy dissipation requirement is high, two viscous dampers and four sets of eddy current components are selected for installation; when the energy dissipation requirement is low, the number of viscous dampers or eddy current components can be appropriately reduced. When the main structure vibrates, the mass block in the frequency-tuned mass damper corresponding to the installation direction of the vibration direction vibrates, and the vibration is transmitted to the viscous damper and the eddy current component, and the energy is dissipated through the movement of the viscous damper and the resistive thermal effect of the copper plate.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A frequency-tuned mass damper capable of modular assembly, characterized in that: The frequency-modulated mass damper of a single module includes a connecting plate, a mass block, a spring, a guide rod, a guide rod shaft support, a viscous damper, a magnet and a C-shaped copper plate. The guide rod passes through the mass block and the springs on the upper and lower sides. Guide rod shaft supports are fixed at both ends of the guide rod, and the guide rod shaft supports are fixed to the connecting plate. The stationary ends on both sides of the viscous damper are fixed to the connecting plate, and the movable end is fixed to the mass block. The magnet is installed on the side of the mass block. The upper and lower ends of the C-shaped copper plate are respectively fixed to the connecting plates on the upper and lower sides, and the magnets and the C-shaped copper plates on each side form a set of eddy current components; installation holes are provided around the connecting plate; the connecting plates are fixed together by mounting plates, screws and nuts between the frequency-modulated mass dampers of the single module, and the mounting plates are selected as straight plates or right-angle plates according to the module assembly direction; the assembly method of the frequency-modulated mass damper of the single module is any one of horizontal assembly, vertical assembly, and horizontal and vertical simultaneous assembly.

2. The modularly assembled frequency-tuned mass damper according to claim 1, characterized in that: The guide rod shaft support and the connecting plate, the damper and the connecting plate, the damper and the mass block, and the C-shaped copper plate and the connecting plate are all detachably connected. The guide rod shaft support and the connecting plate, the damper stationary end and the connecting plate, and the damper movable end and the mass block are connected by flanges, and the C-shaped copper plate and the connecting plate are connected by bolts.

3. The modularly assembled frequency-tuned mass damper according to claim 2, characterized in that: Two oblong holes are respectively provided at both ends of the C-shaped copper plate, and the bolts are installed in the oblong holes.

4. The modularly assembled frequency-tuned mass damper according to claim 2, characterized in that: The movable end of the viscous damper is detachably fixed with a T-joint, and the T-joint is fixed by a flange and a connecting plate.

5. The modularly assembled frequency-tuned mass damper according to claim 1, characterized in that: The plane installation position of the guide rod is symmetrically arranged along the plane center point of the frequency-tuned mass damper.

6. The frequency-tuned mass damper capable of modular assembly according to claim 1, characterized in that: The center points on both sides of the viscous damper coincide with the center point of the frequency-tuned mass damper in the plane position.

7. The modularly assembled frequency-tuned mass damper according to claim 1, characterized in that: The number and arrangement positions of the magnets installed on each side of the mass block are the same, and are left-right symmetrical with respect to the vertical center line of the side of the mass block.

8. The modularly assembled frequency-tuned mass damper according to claim 1, characterized in that: The projection width of each C-shaped copper plate installed on the side of the frequency-tuned mass damper is greater than the installation width of the magnet, and is symmetrical to the left and right of the vertical center line of the side of the mass block.

9. The modularly assembled frequency-tuned mass damper according to claim 1, characterized in that: The tuned mass damper has the same dimensions of height, length and width.

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