CN207376864U - A kind of space grid structure distribution built-in bar-type tuned mass damper - Google Patents
A kind of space grid structure distribution built-in bar-type tuned mass damper Download PDFInfo
- Publication number
- CN207376864U CN207376864U CN201721457269.8U CN201721457269U CN207376864U CN 207376864 U CN207376864 U CN 207376864U CN 201721457269 U CN201721457269 U CN 201721457269U CN 207376864 U CN207376864 U CN 207376864U
- Authority
- CN
- China
- Prior art keywords
- damper
- grid structure
- space grid
- mass
- bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The utility model provides a kind of space grid structure distribution built-in bar-type tuned mass damper, belongs to architectural engineering antidetonation and wind resistance technical field.The damper includes damper cavity unit, mass block, connecting spring, viscous damper, guide rod and advance ball.Damper cavity unit is space net rack rod piece internal cavity unit, and there is a guide rod in portion in the cavity, for connecting spring, viscous damper and mass block.The shape of mass block is identical with grid structure bar shape, and wherein mass block has advance ball with guide rod contact position, can be slided along guide rod.For the damper of the utility model in structural vibration, the kinetic energy of structure can pass to mass block by spring, so as to reduce the kinetic energy of structure in itself；Can be with dissipation energy by viscous damper, the vibration shape for reaching different to structure carries out vibration damping.The utility model has the advantages that vibration damping bandwidth, simple structure, robustness is good, has in architectural engineering antidetonation and wind resistance field extensively using property.
Description
Technical field
The utility model is related to architectural engineering antidetonations and wind resistance technical field, and in particular to a kind of space grid structure distribution
Formula built-in bar-type tuned mass damper.
Background technology
In recent years, tuning quality damper vibration damping technology is since its structure type is simple, effectiveness in vibration suppression is notable, oscillation damping and energy dissipating
Clear mechanism, the advantages that external energy need not be applied, be easily achieved and be used widely.Space grid structure due to its across
Degree is big, and vertical rigidity is smaller and is easily influenced be subject to wind or geological process, and three dimensions characteristic is notable, and dynamic response
The vibration shape is intensive.
However, at present common tuned mass damper be placed at the top of building structure more or bottom, quality and volume compared with
Greatly, and sphere of action is concentrated, and only controls several vibration shapes before minority, and effective bandwidth is relatively narrow, vibrates and controls for large span spatial structure
Effect unobvious processed.Traditional tuned mass damper as mass block, occupies main structure inner space all by external structure,
And may causing main structure, locally dead weight difference is larger, and rod piece and joints are uneven.It is empty inside space grid structure rod piece
Between can be used as damper cavity structure, make full use of space, reduce damper cost.Therefore, using space grid structure point
The form of cloth built-in bar-type tuned mass damper, controls structural vibration, this is controlled for the vibration damping of Practical Project
It is of great significance.
Utility model content
In order to solve the problems, such as that conventional tune mass damper is not suitable in long-span space truss structure vibration control, this
The purpose of utility model is to propose a kind of space grid structure distribution built-in bar-type tuned mass damper, in space net rack
Damping system is set in the rod piece of structure, to transfer and dissipation energy.This damper structure is simple, easy to implement, damping property
It is good.Under wind or geological process, long-span space truss structure can generate the intensive dynamic response of the vibration shape.Each damper is distributed in
In different rod pieces, the adjustment of different dampers becomes different intrinsic frequencies, and in structural vibration, the kinetic energy of structure passes through bullet
Spring passes to mass block, so as to reduce the kinetic energy of structure in itself, and is consumed energy, thus reached to structure not by viscous damper
The same vibration shape carries out the purpose of vibration damping.
The technical solution of the utility model：
A kind of space grid structure distribution built-in bar-type tuned mass damper, including damper cavity unit, quality
Block, connecting spring, viscous damper, guide rod and advance ball；The built-in bar-type tuned mass damper is distributed in sky
Between in grid structure；
The damper cavity unit is hollow rods；Guide rod is axially fixed in damper cavity unit, quality
Block passes through guide rod, and is slided along guide rod, and mass block is axially fixed in damper cavity by connecting spring, viscous damper
Unit inner wall, mass block, connecting spring, viscous damper collectively form a set of collision system；The connection of mass block and guide rod
Place is equipped with advance ball, and advance ball is slided along guide rod, rubs for reducing.
The mass block is solid iron.
The advance ball is stainless steel, and surface scribbles lubriation material.
The gross mass of all mass blocks is the 1%- of space grid structure overall quality in the space grid structure
3%, the quality of single mass is determined according to the number of damper in space grid structure；The rigidity k of the connecting springi
Pass through formulaIt calculates, wherein, fiFor the frequency of i-th of damper, the space net rack of control required for being
The modal frequency of structure, miFor the quality of mass block in i-th of damper.
The length and diameter of the damper cavity unit is determined by the rod piece parameter of space grid structure.The resistance
The frequency f of Buddhist nun's deviceiIt is determined according to the model analysis of space grid structure, the vibration shape matter of each vibration shape is obtained by model analysis
Amount participates in coefficient, and the control vibration shape is the larger former first order modes of vibration shape modal participating mass ratio, and the accumulated quality of the vibration shape is controlled to join
It should be greater than or equal to 90% with the sum of coefficient, the frequency of damper is the frequency of the vibration shape in order to control.
Operation principle：Under wind or geological process, long-span space truss structure can generate the intensive dynamic response of the vibration shape.Respectively
A damper is distributed in different rod pieces, and the adjustment of different dampers becomes different intrinsic frequencies, in structural vibration, knot
The kinetic energy of structure passes to mass block by spring, so as to reduce the kinetic energy of structure in itself；It can be with Dissipated energy by viscous damper
The thus vibration shape that amount reaches different to structure carries out vibration damping.
The beneficial effects of the utility model：
1. application is clear and definite, intensive suitable for the vibration shape, the significant space grid structure earthquake of spatial character or charming appearance and behaviour are shaken
In dynamic control.
2. simple structure, the characteristics of making full use of the rod piece of large span spatial structure hollow, single big mass block is divided into
Several small mass blocks, are distributed according to certain rule in different rod pieces, save space and cost, made convenient for engineering,
Installation and use, it is easier to be promoted in engineering construction.
3. the big vibration shape of the modal contribution that can be directed to main structure carries out vibration damping, vibration damping bandwidth, effect ideal.
4. the mechanism of energy consumption is simple, spring transmission kinetic energy is moved to mass block, viscous damper dissipation vibrational energy, agent structure
Force-responsive reduces.
Description of the drawings
Fig. 1 is the utility model space grid structure built-in bar-type tuned mass damper top view.
Fig. 2 is the utility model mass block along bar axial section.
Fig. 3 is the utility model mass block cross sectional view.
Fig. 4 is arrangement example top view of the utility model in space net rack.
Fig. 5 is arrangement exemplary cross sectional figure of the utility model in space net rack.
In figure：1 damper cavity unit；2 mass blocks；3 connecting springs；4 viscous dampers；5 guide rods；6 advance balls.
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.
Embodiment 1：As shown in Figure 1, be a kind of space grid structure built-in bar-type impact damper of the utility model,
Mainly include damper cavity unit 1, mass block 2, connecting spring 3, viscous damper 4, guide rod 5, advance ball 6.
As shown in Figure 2,3, there is advance ball between mass block and guide rod, reduce friction between the two, advance ball
On scribble lubricant with reduce abrasion.
As shown in Figure 4,5, this damper can be arranged in any position in space grid structure, and the overstriking line in figure is
Damper exemplary plot.Specific location in Practical Project can participate in system according to the dynamic response of main structure to its vibration shape
Number by mode participation coefficient or needs the principal mode controlled, the vibration shape antinode for being arranged in each principal mode of damper.
Damper cavity unit 1 is the rod piece of space grid structure, there is a fixed guide rod in cavity, 5, have above
Connecting spring 3, wherein mass block 2, one end of connecting spring 3 and viscous damper are fixedly connected with rod piece one end, the other end with
Mass block 2 is connected, and has advance ball 6 between mass block 2 and guide rod 5.The mass block is hindered for annular solid iron, mass block
Shape, length determines by the member system feature of space grid structure, the quality of mass block, the rigidity of spring and viscous damping
The damped coefficient of device is related with the frequency of main structure, according to the dynamic response of main structure, its mode participation coefficient is obtained, by shaking
Type participates in coefficient and obtains the principal mode for needing to control, so that it is determined that each frequency of each damper, the quality of mass block, spring
Rigidity and the damped coefficient of viscous damper also thereby determine that.Advance ball is stainless steel, and surface scribbles lubriation material.
Claims (8)
1. a kind of space grid structure distribution built-in bar-type tuned mass damper, which is characterized in that including damper cavity
Unit (1), mass block (2), connecting spring (3), viscous damper (4), guide rod (5) and advance ball (6)；Described is built-in
Rod-type tuned mass damper is distributed in space grid structure；
The damper cavity unit (1) is hollow rods；Guide rod (5) is axially fixed in damper cavity unit (1),
Mass block (2) passes through guide rod (5), and is slided along guide rod (5), and mass block (2) passes through connecting spring (3), viscous damper
(4) damper cavity unit (1) inner wall, mass block (2), connecting spring (3) and viscous damper (4) common structure are axially fixed in
Into collision system；The junction of mass block (2) and guide rod (5) is equipped with advance ball (6), and advance ball (6) is along guide rod (5)
It slides, rubs for reducing.
2. a kind of space grid structure distribution built-in bar-type tuned mass damper according to claim 1, feature
It is, the mass block (2) is solid iron.
3. a kind of space grid structure distribution built-in bar-type tuned mass damper according to claim 1 or 2, special
Sign is that the advance ball (6) is stainless steel, and surface scribbles lubriation material.
4. a kind of space grid structure distribution built-in bar-type tuned mass damper according to claim 1 or 2, special
Sign is that the gross mass of all mass blocks (2) is the 1%- of space grid structure overall quality in the space grid structure
3%, the quality of single mass (2) is determined according to the number of damper in space grid structure.
5. a kind of space grid structure distribution built-in bar-type tuned mass damper according to claim 3, feature
It is, the gross mass of all mass blocks (2) is the 1%- of space grid structure overall quality in the space grid structure
3%, the quality of single mass (2) is determined according to the number of damper in space grid structure.
6. a kind of space grid structure distribution built-in bar-type tuned mass damper according to claim 1,2 or 5,
It is characterized in that, the rigidity k of the connecting spring (3)iPass through formulaIt calculates, wherein, fiFor i-th of resistance
The frequency of Buddhist nun's device, the modal frequency of the space grid structure of control, m required for beingiFor mass block (2) in i-th of damper
Quality.
7. a kind of space grid structure distribution built-in bar-type tuned mass damper according to claim 3, feature
It is, the rigidity k of the connecting spring (3)iPass through formulaIt calculates, wherein, fiFor i-th of damper
Frequency, be required for control space grid structure modal frequency, miFor the matter of mass block (2) in i-th of damper
Amount.
8. a kind of space grid structure distribution built-in bar-type tuned mass damper according to claim 4, feature
It is, the rigidity k of the connecting spring (3)iPass through formulaIt calculates, wherein, fiFor i-th of damper
Frequency, be required for control space grid structure modal frequency, miFor the matter of mass block (2) in i-th of damper
Amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721457269.8U CN207376864U (en) | 2017-11-06 | 2017-11-06 | A kind of space grid structure distribution built-in bar-type tuned mass damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721457269.8U CN207376864U (en) | 2017-11-06 | 2017-11-06 | A kind of space grid structure distribution built-in bar-type tuned mass damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207376864U true CN207376864U (en) | 2018-05-18 |
Family
ID=62334109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721457269.8U Active CN207376864U (en) | 2017-11-06 | 2017-11-06 | A kind of space grid structure distribution built-in bar-type tuned mass damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207376864U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989218A (en) * | 2017-11-06 | 2018-05-04 | 大连理工大学 | A kind of space grid structure distribution built-in bar-type tuned mass damper |
| CN109184018A (en) * | 2018-10-18 | 2019-01-11 | 大连理工大学 | A kind of multidimensional eddy current tuned mass damper |
-
2017
- 2017-11-06 CN CN201721457269.8U patent/CN207376864U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989218A (en) * | 2017-11-06 | 2018-05-04 | 大连理工大学 | A kind of space grid structure distribution built-in bar-type tuned mass damper |
| CN109184018A (en) * | 2018-10-18 | 2019-01-11 | 大连理工大学 | A kind of multidimensional eddy current tuned mass damper |
| CN109184018B (en) * | 2018-10-18 | 2023-12-15 | 大连理工大学 | Multi-dimensional eddy current tuning mass damper |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107989218A (en) | A kind of space grid structure distribution built-in bar-type tuned mass damper | |
| CN105863097B (en) | Non-liner track formula cooperates with tuned damper | |
| CN106401004B (en) | A kind of rolling in multiple directions formula damper | |
| CN207376864U (en) | A kind of space grid structure distribution built-in bar-type tuned mass damper | |
| CN207376863U (en) | A kind of space grid structure distribution built-in bar-type impact damper | |
| CN107419816B (en) | Vibration damper for controlling three-dimensional translation and torsion direction thereof | |
| CN104453004B (en) | A kind of mixing energy-eliminating shock-absorbing damping unit | |
| CN106836543A (en) | The adjustable passive negative stiffness damper of series mechanism | |
| CN201835397U (en) | TMD (tuned mass damper) device | |
| CN103541460A (en) | Novel tuned particle mass damper | |
| CN107989217A (en) | A kind of space grid structure distribution built-in bar-type impact damper | |
| CN109184018B (en) | Multi-dimensional eddy current tuning mass damper | |
| CN103015557A (en) | Collision and buckling energy-consuming damper | |
| CN109595292B (en) | Adjustable and controllable tuning damper of jacket type offshore wind driven generator | |
| CN107762229A (en) | The current vortex dissipative damping device of controlled level and torsional direction | |
| CN109025450A (en) | A kind of used matter vibration absorber of temperature control intelligent tuning | |
| CN105672518B (en) | A kind of tuned mass damper for power consumption of being shaken using whirlpool | |
| CN207032551U (en) | The adjustable passive negative stiffness damper of series mechanism | |
| CN103590320A (en) | Stay cable vibration damper of cable-stayed bridge | |
| CN209066637U (en) | A kind of multidimensional eddy current tuned mass damper | |
| CN109058364A (en) | A kind of vertical vibration isolation support | |
| CN103104051A (en) | Nested water tank capable of reducing vibration and dissipating energy | |
| CN106930590B (en) | Novel space grid structure ball joint device with damping function | |
| CN201660980U (en) | Suspended frequency modulation mass damper | |
| CN209854963U (en) | Cylindrical tuning liquid column damper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |