CN213628644U - Frequency dependent tuned mass damper - Google Patents
Frequency dependent tuned mass damper Download PDFInfo
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- CN213628644U CN213628644U CN202022382759.4U CN202022382759U CN213628644U CN 213628644 U CN213628644 U CN 213628644U CN 202022382759 U CN202022382759 U CN 202022382759U CN 213628644 U CN213628644 U CN 213628644U
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Abstract
The utility model relates to a frequency-dependent tuned mass damper, which comprises an energy consumption mechanism and a pair of vibration transmission mechanisms; the pair of vibration transmission mechanisms are symmetrically arranged on two sides of the energy consumption mechanism; the energy consumption mechanism comprises an energy consumption shell and an energy consumption mass block, the energy consumption mass block comprises an inner magnetic pole, a plurality of particle path cylinders arranged in a cluster manner, an outer magnetic pole, a rubber layer and a friction layer which are sequentially arranged from inside to outside, an inner center shaft is arranged in the shell, and the energy consumption mass block is sleeved on the inner center shaft through the inner magnetic pole; particles are placed in the particle path cylinder, the inner magnetic pole and the outer magnetic pole form a changing magnetic field, the vibration transmission mechanism transmits energy to the energy consumption mechanism, and the particles in the particle path cylinder move in the changing magnetic field to generate eddy current collision so as to realize energy consumption. The utility model discloses utilize harmonious mass principle to make the attenuator have very high vibration sensitivity, guarantee simultaneously that the energy transmits the middle part from both ends and carries out effective dissipation.
Description
Technical Field
The utility model belongs to the technical field of the attenuator, especially, relate to a frequency-dependent harmonious mass damper.
Background
The transmission mode of traditional attenuator is mostly machinery, and transmission displacement relies on the deformation of continuous structure, in case the structure warp and surpasss certain degree, will to a great extent influence the power consumption efficiency of attenuator, even unable work.
The flexible connection can timely sense the excitation transmitted to the damper and dissipate the excitation, and the effect of the damper can be normally played without depending on the deformation of two ends of the structure, so that the energy consumption effect of the damper is increased.
Therefore, based on the problems, it is important to provide a tuned mass damper with high vibration sensitivity by using the tuned mass principle, and ensuring that energy is transmitted from two ends to the middle part for effective dissipation, wherein the tuned mass damper is frequency-dependent.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide one kind and utilize harmonious mass principle to make the attenuator have very high vibration sensitivity, guarantee simultaneously that the energy transmits the middle part from both ends and carries out the harmonious mass damper that the frequency of effective dissipation is relevant.
The utility model provides a its technical problem take following technical scheme to realize:
a frequency dependent tuned mass damper comprising an energy dissipating mechanism and a pair of vibration transmitting mechanisms; the pair of vibration transmission mechanisms are symmetrically arranged on two sides of the energy consumption mechanism;
the energy dissipation mechanism comprises an energy dissipation shell and an energy dissipation mass block, the energy dissipation mass block comprises an inner magnetic pole, a plurality of particle path cylinders arranged in a cluster manner, an outer magnetic pole, a rubber layer and a friction layer which are sequentially arranged from inside to outside, an inner center shaft is arranged in the shell, the energy dissipation mass block is sleeved on the inner center shaft through the inner magnetic pole, the two ends of the energy dissipation mass block are fixedly connected with backing plates, a first spring is arranged between each backing plate and the end part of the energy dissipation shell at the end of the corresponding backing plate, and the two ends of each first spring are respectively fixedly connected with the backing plates and the end parts of the;
the vibration transmission mechanism comprises a piston cylindrical vibration shell, a piston rod and a piston, one end of the vibration shell is open and is fixedly connected with the energy consumption shell, the piston rod penetrates through the other end of the vibration shell, the piston is positioned in the vibration shell and is fixedly connected with the piston rod, second springs are arranged at two ends of the piston, and the second springs are fixedly connected with the piston;
particles are placed in the particle path cylinder, the inner magnetic pole and the outer magnetic pole form a variable magnetic field, the vibration transmission mechanism transmits energy to the energy consumption mechanism, and the particles in the particle path cylinder move in the variable magnetic field to generate eddy current collision so as to realize energy consumption.
Furthermore, baffle and end cover plate are all installed to granule path section of thick bamboo both sides, the baffle with granule path section of thick bamboo inner wall sealing contact just can move along it, fill non-Newtonian fluid between baffle and the end cover plate, and pass through third spring coupling between baffle and the end cover plate, place the granule between the baffle of granule path section of thick bamboo both sides.
Furthermore, the inner magnetic pole and the outer magnetic pole are arranged at intervals on the transverse section and the longitudinal section of the magnetic pole, and the opposite magnetic poles of the inner magnetic pole and the outer magnetic pole in the diameter direction are opposite.
Furthermore, the side wall of the energy consumption mass block forms an arc-shaped protruding structure, and the side wall of the energy consumption mass block can consume energy through contact friction with the inner wall of the energy consumption shell.
Furthermore, two ends of the inner wall of the energy consumption shell form an arc-shaped structure bending towards the inside of the energy consumption shell.
Further, the granules are spread in the granule path cylinder not more than two layers and filled to the extent of not more than the distance between the baffle plates at two sides of the granule path cylinder.
Further, the particles are metals or alloys that can generate eddy currents in a changing magnetic field.
Further, the particle radius is 1/5-1/4 of the inner diameter of the particle path cylinder.
Further, the surfaces of the baffles in contact with the particles are coated with a shock absorbing material.
Furthermore, shock absorption and buffer materials are filled among the plurality of particle path cylinders which are arranged in a cluster manner.
The utility model has the advantages that:
compared with the existing damper, the utility model adopts the mode of rigid connection of transmission and energy consumption linkage, does not consider the condition that relative displacement occurs at the two ends of the damper to compress the energy consumption path, and the energy consumption path is directly related to the working effect of the damper; the damper adopts the flexible connection transmission and energy consumption module, and transmits the vibration energy to the damper energy consumption mechanism by utilizing the tuning mass principle, thereby further reducing the influence factors of the transmission motion path and ensuring the working efficiency of the damper in the earthquake.
Drawings
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for illustrative purposes only and thus are not intended to limit the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein and are not necessarily drawn to scale.
Fig. 1 is a cross-sectional view of a frequency dependent tuned mass damper according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a cross-sectional view of a particle path cylinder of a frequency dependent tuned mass damper according to an embodiment of the present invention;
Detailed Description
First, it should be noted that the specific structures, features, advantages, etc. of the present invention will be described in detail below by way of example, but all the descriptions are only for illustrative purpose and should not be construed as forming any limitation to the present invention. Furthermore, any single feature described or implicit in any embodiment or any single feature shown or implicit in any drawing may still be combined or subtracted between any of the features (or equivalents thereof) to obtain still further embodiments of the invention that may not be directly mentioned herein. In addition, for the sake of simplicity, the same or similar features may be indicated in only one place in the same drawing.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The present invention will be described in detail with reference to fig. 1 to 3.
Example 1
Fig. 1 is a cross-sectional view of a frequency dependent tuned mass damper according to an embodiment of the present invention; FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1; fig. 3 is a cross-sectional view of a particle path cylinder of a frequency dependent tuned mass damper according to an embodiment of the present invention; as shown in fig. 1 to 3, the tuned mass damper related to frequency provided in this embodiment includes an energy consumption mechanism and a pair of vibration transmission mechanisms; the pair of vibration transmission mechanisms are symmetrically arranged on two sides of the energy consumption mechanism;
the energy dissipation mechanism comprises an energy dissipation shell 2 and an energy dissipation mass block, the energy dissipation mass block comprises an inner magnetic pole 14, a plurality of particle path cylinders 1 which are arranged in a cluster manner, an outer magnetic pole 3, a rubber layer 3.1 and a friction layer 3.2 which are sequentially arranged from inside to outside, a damping buffer material 15 is filled between the plurality of particle path cylinders 1 which are arranged in a cluster manner, an inner center shaft 5 is installed in the shell 2, the energy dissipation mass block is sleeved on the inner center shaft 5 through the inner magnetic pole 14, two ends of the energy dissipation mass block are fixedly connected with a backing plate 4, a first spring 6 is installed between the backing plate 4 and the end part of the energy dissipation shell 2 at the end where the backing plate is located, and two ends of the first spring 6 are respectively fixedly connected with the backing plate 4;
the vibration transmission mechanism comprises a piston cylindrical vibration shell 16, a piston rod 7 and a piston 8, one end of the vibration shell 16 is open and is fixedly connected with the energy consumption shell 2, the piston rod 7 penetrates through the other end of the vibration shell 16, the piston 8 is positioned in the vibration shell 16 and is fixedly connected with the piston rod 7, and second springs are arranged at two ends of the piston 8 and are fixedly connected with the piston 8;
the particles 12 are placed in the particle path cylinder 1, the inner magnetic pole 14 and the outer magnetic pole 3 form a variable magnetic field, the vibration transmission mechanism transmits energy to the energy consumption mechanism, and the particles 12 in the particle path cylinder 1 move in the variable magnetic field to generate eddy current collision so as to realize energy consumption.
Specifically, the method comprises the following steps: the particle path cylinder 1 is provided with baffles 13 and end cover plates 101 on two sides, the baffles 13 are in sealing contact with the inner wall of the particle path cylinder 1 and can move along the inner wall, a non-Newtonian fluid 11 is filled between the baffles 13 and the end cover plates 101, the baffles 13 and the end cover plates 101 are connected through a third spring 10, and particles 12 are placed between the baffles 13 on two sides of the particle path cylinder 1; the surfaces of the baffles 13 in contact with the particles 12 are coated with a shock absorbing material; it should be noted that the granules 12 are spread in the granule path cylinder 1 in not more than two layers and filled with 1/3 not more than the distance between the baffles 13 on both sides of the granule path cylinder 1, and the radius of the granules 12 is 1/5-1/4 of the inner diameter of the granule path cylinder 1; also, the particles 12 are metals or alloys that can generate eddy currents in a changing magnetic field.
In the present embodiment, the inner magnetic pole 14 and the outer magnetic pole 3 are concentrically arranged, the inner magnetic pole 14 and the outer magnetic pole 3 are arranged at intervals on the horizontal section and the longitudinal section, the opposite magnetic poles of the inner magnetic pole 14 and the outer magnetic pole 3 in the diameter direction are opposite, and the inner magnetic pole 14 and the outer magnetic pole 3 are permanent magnets.
The side wall of the energy consumption mass block forms an arc-shaped protruding structure, the side wall of the energy consumption mass block can consume energy through contact friction with the inner wall of the energy consumption shell 2, and two ends of the inner wall of the energy consumption shell 2 form an arc-shaped structure bending towards the inside of the energy consumption shell 2. In this embodiment, the path 2/3 of the inner wall of the dissipative housing 2 is a non-radian path, and the two ends of the path are set to be paths with a certain radian, so that on one hand, the pressure change of the path causes the stiffness change to ensure the optimal dissipative frequency spectrum range, and simultaneously, the movement displacement of the dissipative mass block does not reach the two extreme ends and is not jammed and failed.
In order to increase the energy consumption effect of the damper, it can be considered that the first spring, the second spring and the third spring are all made of memory alloy metal materials.
In addition, in order to better realize the technical effect, a righting rod 17 is installed in the cylindrical piston vibration shell 16, one end of the righting rod 17 is fixedly connected with the energy consumption shell 2, the other end of the righting rod penetrates into the piston rod 7, a piston rod motion path 18 is formed in the piston rod 7, and the piston rod 7 is prevented from deviating during moving.
It should be noted that, the fixing and connecting method of the present invention adopts conventional means such as bolts, rivets, welding, etc. which are mature in the prior art, and is not described herein again, but due to the above reasons, the repeated reproduction of the technicians in the field will not be affected.
By way of example, in the present embodiment, under the action of external excitation, the piston rod 7 generates slight vibration and transmits energy to the energy dissipation mechanism, the energy dissipation mass moves to generate displacement due to the action of the tuned mass, the outer surface of the energy dissipation mass and the inner cavity of the energy dissipation housing 2 rub to dissipate energy, particles in the energy dissipation mechanism move in a path of magnetic field change to generate eddy current energy dissipation, collision is generated among the particles, and collision energy dissipation is generated between the particles and the particle path cylinder 1, and when the particles move to two ends of the particle path cylinder 1, the particles collide with the elastoplastic combination formed by the non-newtonian fluid and the spring to dissipate energy.
The above embodiments are described in detail, but the above description is only for the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (10)
1. A frequency dependent tuned mass damper, characterized by: comprises an energy consumption mechanism and a pair of vibration transmission mechanisms; the pair of vibration transmission mechanisms are symmetrically arranged on two sides of the energy consumption mechanism;
the energy dissipation mechanism comprises an energy dissipation shell and an energy dissipation mass block, the energy dissipation mass block comprises an inner magnetic pole, a plurality of particle path cylinders arranged in a cluster manner, an outer magnetic pole, a rubber layer and a friction layer which are sequentially arranged from inside to outside, an inner center shaft is arranged in the shell, the energy dissipation mass block is sleeved on the inner center shaft through the inner magnetic pole, the two ends of the energy dissipation mass block are fixedly connected with backing plates, a first spring is arranged between each backing plate and the end part of the energy dissipation shell at the end of the corresponding backing plate, and the two ends of each first spring are respectively fixedly connected with the backing plates and the end parts of the;
the vibration transmission mechanism comprises a piston cylindrical vibration shell, a piston rod and a piston, one end of the vibration shell is open and is fixedly connected with the energy consumption shell, the piston rod penetrates through the other end of the vibration shell, the piston is positioned in the vibration shell and is fixedly connected with the piston rod, second springs are arranged at two ends of the piston, and the second springs are fixedly connected with the piston;
particles are placed in the particle path cylinder, the inner magnetic pole and the outer magnetic pole form a variable magnetic field, the vibration transmission mechanism transmits energy to the energy consumption mechanism, and the particles in the particle path cylinder move in the variable magnetic field to generate eddy current collision so as to realize energy consumption.
2. The frequency dependent tuned mass damper according to claim 1, wherein: all install baffle and end cover board in granule path section of thick bamboo both sides, the baffle with granule path section of thick bamboo inner wall sealing contact just can follow its removal, fill non-Newtonian fluid between baffle and the end cover board, and pass through third spring coupling between baffle and the end cover board, place the granule between the baffle of granule path section of thick bamboo both sides.
3. The frequency dependent tuned mass damper according to claim 1, wherein: the inner magnetic pole and the outer magnetic pole are arranged on the transverse section and the longitudinal section at intervals, and the opposite magnetic poles of the inner magnetic pole and the outer magnetic pole in the diameter direction are opposite.
4. The frequency dependent tuned mass damper according to claim 1, wherein: the side wall of the energy consumption mass block forms an arc-shaped protruding structure, and the side wall of the energy consumption mass block can consume energy through contact friction with the inner wall of the energy consumption shell.
5. The frequency dependent tuned mass damper according to claim 1, wherein: and two ends of the inner wall of the energy consumption shell form an arc-shaped structure which is bent towards the inside of the energy consumption shell.
6. The frequency dependent tuned mass damper according to claim 2, wherein: the granules are spread within the granule path cylinder in no more than two layers and filled with 1/3 to an extent no more than the distance between baffles on either side of the granule path cylinder 1.
7. The frequency dependent tuned mass damper according to claim 2, wherein: the particles are metals or alloys that can generate eddy currents in a changing magnetic field.
8. The frequency dependent tuned mass damper according to claim 2, wherein: the particle radius is 1/5-1/4 of the inner diameter of the particle path cylinder.
9. The frequency dependent tuned mass damper according to claim 2, wherein: the surfaces of the baffles in contact with the particles are coated with a shock absorbing material.
10. The frequency dependent tuned mass damper according to claim 2, wherein: and a damping and buffering material is filled among the plurality of particle path cylinders in the clustered arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022382759.4U CN213628644U (en) | 2020-10-23 | 2020-10-23 | Frequency dependent tuned mass damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022382759.4U CN213628644U (en) | 2020-10-23 | 2020-10-23 | Frequency dependent tuned mass damper |
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| CN213628644U true CN213628644U (en) | 2021-07-06 |
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| CN202022382759.4U Active CN213628644U (en) | 2020-10-23 | 2020-10-23 | Frequency dependent tuned mass damper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114810940A (en) * | 2022-05-25 | 2022-07-29 | 海门市华洋汽车配件制造有限公司 | Adjustable composite damping rubber pad |
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2020
- 2020-10-23 CN CN202022382759.4U patent/CN213628644U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114810940A (en) * | 2022-05-25 | 2022-07-29 | 海门市华洋汽车配件制造有限公司 | Adjustable composite damping rubber pad |
| CN114810940B (en) * | 2022-05-25 | 2022-09-02 | 海门市华洋汽车配件制造有限公司 | Adjustable composite damping rubber pad |
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