CN208899682U - A kind of omni-directional TMD vibration absorber - Google Patents
A kind of omni-directional TMD vibration absorber Download PDFInfo
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- CN208899682U CN208899682U CN201821683571.XU CN201821683571U CN208899682U CN 208899682 U CN208899682 U CN 208899682U CN 201821683571 U CN201821683571 U CN 201821683571U CN 208899682 U CN208899682 U CN 208899682U
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Abstract
The utility model provides a kind of omni-directional TMD vibration absorber, comprising: bottom plate, cantilever beam, permanent magnet, conductor plate and shell；Shell is fixedly connected on bottom plate；The centre bore of bottom plate is passed through for the cantilever beam of elastic element, and cantilever beam is connected with permanent magnet on one end in shell, the other end is fixedly connected with centre bore；Conductor plate is fixedly connected on the top of shell, and conductor plate is opposite with permanent magnet.Omni-directional TMD vibration absorber provided by the utility model, its bottom plate can be connect with structural model, when with structure horizontal movement occurs for device, relative motion between permanent magnet and conductor plate generates eddy-current damping power, and elastic restoring force is generated using cantilever deflection of beam, to absorb the vibrational energy of simultaneously Dissipative structural model, since the movement of the horizontal direction of structure is not limited by specific direction, therefore the vibration control in different motion direction can be realized to structural model under different load directions.
Description
Technical field
The utility model relates to tall and slender structure Vibration Absorption Designing field more particularly to a kind of omni-directional TMD vibration absorbers.
Background technique
Tuned mass damper (tuned mass damper, TMD) obtains in tall and slender structure because of its efficient damping property
To being widely applied.The Vibration Absorption Designing of tall and slender structure is usually required through the damping test of structural model to verify TMD vibration damping effect
Fruit and optimal design parameter.
Often the natural frequency of vibration is high, self weight is small for structural model in test, thus needs the TMD of high-frequency, small quality.However,
Since structural model is due to small volume, space is limited, it is difficult to multiple TMD devices are installed, and traditional TMD device only can control
The vibration of single direction.
In test there has been no devices or technology can be conveniently implemented under different load directions to structural model reality at present
The vibration control in existing different motion direction.
Utility model content
The utility model discloses a kind of omni-directional TMD vibration absorber, can be realized under different load directions to structure
The vibration control in model realization different motion direction.
The utility model provides a kind of omni-directional TMD vibration absorber, comprising: bottom plate, cantilever beam, permanent magnet, conductor plate
And shell；
The shell is fixedly connected on the bottom plate；
The centre bore of the bottom plate is passed through for the cantilever beam of elastic element, and the cantilever beam is set in the shell
One end on be connected with the permanent magnet, the other end is fixedly connected with the centre bore；
The conductor plate is fixedly connected on the top of the shell, and the conductor plate is opposite with the permanent magnet.
Preferably, the shell includes: top cover and main body；
The top cover and the main body are provided with the sliding slot to match, and the top cover is placed on the outside of the main body, and
The top cover is fixedly connected at the sliding slot with the main body by fixing piece.
Preferably, the fixing piece includes screw bolt and nut.
Preferably, the cantilever beam is along rift grain to the timber of cutting.
Preferably, the cantilever beam is cylindric.
Preferably, the permanent magnet is sintered NdFeB strong magnets.
Preferably, the conductor plate is copper plate.
As can be seen from the above technical solutions, the utility model embodiment has the advantage that
The utility model provides a kind of omni-directional TMD vibration absorber, comprising: bottom plate, cantilever beam, permanent magnet, conductor plate
And shell；Shell is fixedly connected on bottom plate；The centre bore of bottom plate is passed through for the cantilever beam of elastic element, and cantilever beam is set on outer
Permanent magnet is connected on one end in shell, the other end is fixedly connected with centre bore；Conductor plate is fixedly connected on the top of shell,
And conductor plate is opposite with permanent magnet.Omni-directional TMD vibration absorber provided by the utility model, bottom plate can connect with structural model
It connects, when with structure horizontal movement occurs for device, the relative motion between permanent magnet and conductor plate generates eddy-current damping power, and
Elastic restoring force is generated using cantilever deflection of beam, so that the vibrational energy of simultaneously Dissipative structural model is absorbed, due to the water of structure
Square to movement do not limited by specific direction, therefore can under different load directions to structural model realize different motion direction
Vibration control.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of structure of one embodiment of the omni-directional TMD vibration absorber provided in the utility model embodiment
Schematic diagram；
Fig. 2 is a kind of the another of one embodiment of the omni-directional TMD vibration absorber provided in the utility model embodiment
Structural schematic diagram.
Specific embodiment
The utility model embodiment discloses a kind of omni-directional TMD vibration absorber, can be realized under different load directions
The vibration control in different motion direction is realized to structural model.
Fig. 1 and Fig. 2 are please referred to, an a kind of reality of the omni-directional TMD vibration absorber provided in the utility model embodiment
Applying example includes: bottom plate 1, cantilever beam 2, permanent magnet 3, conductor plate 5 and shell；
Shell is fixedly connected on bottom plate 1, specifically, shell is fixedly connected on the top surface of bottom plate 1, the bottom surface of bottom plate 1
It is fixedly connected with structural model；
The centre bore of bottom plate 1 is passed through for the cantilever beam 2 of elastic element, and cantilever beam 2 connects on one end in shell
There is permanent magnet 3, it is to be understood that cantilever beam 2 has both ends, and wherein one end is the free end being set in shell, the other end
It is fixedly connected with the centre bore of bottom plate by hot melt adhesive；
Conductor plate 5 is fixedly connected on the top of shell, as shown in Figure 1, conductor plate 5 is set to the inner surface of housing top end
On.And conductor plate 5 and permanent magnet 3 are opposite.
Omni-directional TMD vibration absorber provided by the utility model, bottom plate 1 can be connect with structural model, in any direction
Under load action, when with structure horizontal movement occurs for bottom plate 1, the permanent magnet 3 at 2 top of cantilever beam has inertia as mass block
Power, the relative motion between permanent magnet 3 and conductor plate 5 generates eddy-current damping power, and generates elasticity using the bending of cantilever beam 2
Restoring force, thus absorb and Dissipative structural model vibrational energy, due to structure horizontal direction movement not by specific direction
Limitation, therefore the vibration control in different motion direction can be realized to structural model under different load directions.
Further, shell includes: top cover 6 and main body 4；
Top cover 6 and main body 4 are provided with the sliding slot to match, and top cover 6 is placed on the outside of main body 4, and top cover 6 and main body 4
It is fixedly connected at sliding slot by fixing piece 7.It should be noted that usually being offered in the opposite sides of top cover 6 and main body 4
The sliding slot to match, is then fixed by fixing piece.
Further, fixing piece 7 includes screw bolt and nut.
Further, cantilever beam 2 is along rift grain to the timber of cutting.
Further, cantilever beam 2 is cylindric.
Further, permanent magnet 3 is sintered NdFeB strong magnets.
Further, conductor plate 5 is copper plate.
In the present embodiment, the connection being typically different between component can carry out live bonding using hot melt adhesive.
For the natural frequency of vibration for adjusting permanent magnet 3, the hot melt adhesive between bottom plate 1 and cantilever beam 2 need to be first removed, then adjustment is outstanding
Length of the arm beam 2 above bottom plate 1, and 6 height of top cover is adjusted to keep conductor plate 5 and permanent magnet 3 by elasticity bolt nut 7
Spacing it is constant.
For the damping ratio for adjusting TMD device, bolt and nut 7 need to be first unclamped, conductor plate 5 is removed, then selecting has difference
The conductor plate 5 of thickness, or still using former conductor plate 5, but adjust the spacing of conductor plate 5 and permanent magnet 3.
For the mass ratio for adjusting TMD device, the hot melt adhesive between cantilever beam 2 and permanent magnet 3 need to be first removed, then selects tool
There is the permanent magnet 3 of same area but different-thickness.
In the utility model embodiment, cantilever beam 2 is used as elastic element, provides elastic force.The permanent magnetism at 2 top of cantilever beam
Body 3 is used as mass block, and when permanent magnet 3 moves in the horizontal plane, the relative motion with overlying conductors plate 5 generates eddy-current damping
Power, in this, as damping element.Under Arbitrary Load direction, when with structure the movement of horizontal direction occurs for device, in device
Permanent magnet 3 can generate the movement of opposite rectangular structure and overlying conductors plate 5, eddy-current damping is generated, to absorb and dissipate
The energy of structural vibration reduces the response of structure all directions.
A kind of omni-directional TMD vibration absorber provided by the utility model is described in detail above, for ability
The those skilled in the art in domain have in specific embodiments and applications based on the idea of the embodiment of the present invention
Change place, in conclusion the content of the present specification should not be construed as a limitation of the present invention.
Claims (7)
1. a kind of omni-directional TMD vibration absorber characterized by comprising bottom plate, cantilever beam, permanent magnet, conductor plate and shell；
The shell is fixedly connected on the bottom plate；
The centre bore of the bottom plate is passed through for the cantilever beam of elastic element, and the cantilever beam is set to one in the shell
The permanent magnet is connected on end, the other end is fixedly connected with the centre bore；
The conductor plate is fixedly connected on the top of the shell, and the conductor plate is opposite with the permanent magnet.
2. omni-directional TMD vibration absorber according to claim 1, which is characterized in that the shell includes: top cover and master
Body；
The top cover and the main body are provided with the sliding slot to match, and the top cover is placed on the outside of the main body, and described
Top cover is fixedly connected at the sliding slot with the main body by fixing piece.
3. omni-directional TMD vibration absorber according to claim 2, which is characterized in that the fixing piece includes bolt and spiral shell
It is female.
4. according to claim 1 to omni-directional TMD vibration absorber described in 3 any one, which is characterized in that the cantilever beam is
Along rift grain to the timber of cutting.
5. omni-directional TMD vibration absorber according to claim 4, which is characterized in that the cantilever beam is cylindric.
6. according to claim 1 to omni-directional TMD vibration absorber described in 3 any one, which is characterized in that the permanent magnet is
Sintered NdFeB strong magnets.
7. according to claim 1 to omni-directional TMD vibration absorber described in 3 any one, which is characterized in that the conductor plate is
Copper plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821683571.XU CN208899682U (en) | 2018-10-17 | 2018-10-17 | A kind of omni-directional TMD vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821683571.XU CN208899682U (en) | 2018-10-17 | 2018-10-17 | A kind of omni-directional TMD vibration absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208899682U true CN208899682U (en) | 2019-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821683571.XU Active CN208899682U (en) | 2018-10-17 | 2018-10-17 | A kind of omni-directional TMD vibration absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208899682U (en) |
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2018
- 2018-10-17 CN CN201821683571.XU patent/CN208899682U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200120 Address after: 510000 room 501-503, annex building, Huaye building, No.1-3, Chumo new street, Xihua Road, Yuexiu District, Guangzhou City, Guangdong Province Patentee after: Guangdong Electric Power Research Institute of energy technology limited liability company Address before: 510600 No. 757 Dongfeng East Road, Guangzhou, Guangdong, Yuexiu District Co-patentee before: ELECTRIC POWER RESEARCH INSTITUTE, GUANGDONG POWER GRID CO., LTD. Patentee before: GUANGDONG STATE GRID CO., LTD. Co-patentee before: Guangdong Electric Power Research Institute of energy technology limited liability company |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 501-503, annex building, Huaye building, No.1-3 Chuimao new street, Xihua Road, Yuexiu District, Guangzhou City, Guangdong Province 510000 Patentee after: China Southern Power Grid Power Technology Co.,Ltd. Address before: Room 501-503, annex building, Huaye building, No.1-3 Chuimao new street, Xihua Road, Yuexiu District, Guangzhou City, Guangdong Province 510000 Patentee before: GUANGDONG ELECTRIC POWER SCIENCE RESEARCH INSTITUTE ENERGY TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |