CN203129004U - Support type particle damper of friction pendulum - Google Patents
Support type particle damper of friction pendulum Download PDFInfo
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- CN203129004U CN203129004U CN 201320030660 CN201320030660U CN203129004U CN 203129004 U CN203129004 U CN 203129004U CN 201320030660 CN201320030660 CN 201320030660 CN 201320030660 U CN201320030660 U CN 201320030660U CN 203129004 U CN203129004 U CN 203129004U
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- damper
- friction pendulum
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- slide block
- damper cavity
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Abstract
The utility model relates to a support type particle damper of a friction pendulum. The support type particle damper of the friction pendulum comprises friction pendulum supports, a damper cavity, particle swarms, buffer materials and a limiting device. Each friction pendulum support is composed of a sliding surface, a sliding block and a connecting shaft. The damper cavity is fixedly arranged on the four friction pendulum supports, the damper cavity is of a cuboid or of a cylinder, can be a single cavity body, and also can be provided with a plurality of subareas in a horizontal direction and/or a vertical direction, a layer of particle swarms is paved inside each cavity body in each subarea, the buffer materials are adhered to the inner portion of the each cavity body, and particles are helped to collide to consume energy. The damper cavity is fixedly arranged on the four friction pendulum supports on the bottom, the limiting device is arranged between a base and a cover plate of the friction pendulum, and oversize swinging can be avoided. Under the effect of wind or/and earthquakes and the like, the support type particle damper can move horizontally in any direction, on one hand, natural vibration frequency is adjusted through a tuning structure, on the other hand, vibration energy of the structure is transferred and dissipated through rolling, sliding, friction, colliding of the particle swarms, and the energy consumption effect can be improved after the buffer materials are added.
Description
Technical field
The utility model belongs to field of civil engineering, is specially a kind of friction pendulum support formula granule damper, can be applied to civil structure (comprising highrise building, tall and slender structure and bridge construction etc.) vibration isolation field.
Background technology
Tuned mass damper (TMD) vibration damping control technology is extensively paid attention to characteristics such as it are little to the original structure change, construction is simple, effectiveness in vibration suppression is remarkable, and at home and abroad is used widely in the civil engineering.For the level of control structure to vibration, adopt the tuned mass damper of suspension usually, make single pendulum frequency and structure frequency tuning by adjusting pendulum length, reach the vibration isolation effect.But under a lot of situations, because space or technical reason, the application of single pendulum can be restricted, and tuned mass damper self has the vibration damping frequency band narrow again, additional damper shortcoming such as involve great expense.
Recently, novel damper that tuned mass damper is combined with granule damper occurred, this damper comes consumed energy by intergranular collision, replaces viscous damper with particle swarm and will reduce the cost of damper significantly.But granule damper also has the restriction of himself deficiency, mostly is elastic collision such as the collision of particle and cavity, and energy by collision is limited in one's ability; Traditional granule damper endoparticle is stacked, and has so greatly limited the locomitivity of particle, and effectiveness in vibration suppression is not good.
A kind of friction pendulum support formula granule damper of the present utility model replaces the hoist cable of single pendulum with friction pendulum support, damper can be positioned on the structure, can effectively utilize the space, and tuned mass damper and granule damper combined, make its mutual supplement with each other's advantages, and carried out improving exploitation, and form a kind of easy for installation, cheap, energy dissipation capacity is good, durability is good novel damper, have great engineering significance.
The utility model content
The purpose of this utility model is to propose a kind of friction pendulum support formula granule damper, this device is in conjunction with the advantage separately of tuned mass damper and granule damper, and improved, being about to the damper cavity separates, only hold one deck particle swarm in each cavity, guarantee to bring into play to greatest extent the locomitivity of particle swarm, and paste padded coaming at cavity inside, strengthen the energy dissipation capacity of collision.The utility model has been abandoned the suspention form of single pendulum tuned mass damper, uses friction pendulum support instead, and by the damper cavity body being fixed on the friction pendulum support in four bights, cavity just can be swung at the circular arc slideway with the friction pendulum support cover plate.The design in the special joint of slide block and cover plate can guarantee that the damper cavity remains level in motion process, and the motion of this damper not the recipient to constraint, the vibration of any direction is all had the oscillation damping and energy dissipating effect.Simultaneously, not only between particle, the collision between particle and damper cavity, friction can dissipation energies, in the friction pendulum support swing process, the vibrational energy that also can dissipate of the friction between slide block and the slideway.The arranging of stopping means can guarantee damper at superpower wind or/and doughtily under the shake effect, is unlikely to the excessive and impact structure of amplitude of fluctuation and produces and destroy.
To achieve these goals, the utility model is taked following technical scheme.
A kind of friction pendulum support formula granule damper that the utility model proposes, comprise: damper cavity 1, particle swarm 2, padded coaming 3 and friction pendulum support 4, damper cavity 1 is cuboid or cylindrical cavity, damper cavity 1 is one or more, a plurality of damper cavity 1 levels or vertical direction are arranged, each damper cavity 1 inner tiling one deck particle swarm 2 is pasted with padded coaming 3 on damper cavity 1 inwall; Its characteristics are: be fixed on four friction pendulum supports 4 energy maintenance level when damper cavity 1 is slided along sphere with slide block around damper cavity 1 bottom; Each friction pendulum support 4 is by cover plate 5, connecting axle 6, base 7, slide block 8, slideway 9 and stopping means 10 are formed, base 7 tops have down concave ball shape, described recessed spherical surface is slideway 9, slide block 8 is positioned at slideway 9 tops, slide block 8 bottom surfaces scribble composite friction material, when slide block 8 produces the auxiliary consumed energy of frictional force when slideway 9 slides, slide block 8 is by the hemispherical joint of superposed projection and the cylindrical body that is positioned at the bottom one that is formed by connecting, slide block 8 bottom surface radiuses are identical with slideway 9 radiuses, and dock with the position of connecting axle 6 bottom grooves in the hemispherical joint of the projection on slide block 8 tops; Cover plate 5 belows are fixed at connecting axle 6 tops, and cover plate 5 is placed on base 7 tops, are provided with stopping means 10 between cover plate 5 and the base 7, to prevent it excessive swing take place, and are connected by dead bolt plate 11 between cover plate 5 and the base 7.
In the utility model, described particle swarm 2 is made up of several spheric granules, can be in steel ball, concrete ball, glass marble or the Ceramic Balls of diameter 2mm ~ 50mm one or more.Particle swarm 2 is 40% ~ 80% of damper cavity 1 horizontal area in the horizontal plane projected area, and the volume of particle swarm 2 should be 5% ~ 20% of damper cavity 1 volume.
In the utility model, described padded coaming 3 comprises one or more in rubber, foamed plastics or the pearl cotton, to increase the energy by collision ability.
In the utility model, adopt four friction pendulum supports 4, be positioned over four bights of damper cavity 1 bottom.Four friction pendulum support 4 models are identical, can play damping effect to the vibration of horizontal any direction.Adopt hemispheric joint to be connected between slide block 8 in the friction pendulum support 4 and the connecting axle 6, can guarantee top cover plate 5 and damper cavity 1 maintenance level.
In the utility model, between the cover plate 5 of friction pendulum support 4 and base 7, stopping means 10 is set.This stopping means 10 has under the little displacement does not work, and provides pulling force to prevent the function that amplitude of fluctuation is excessive under the big displacement.
Effect of the present utility model is: the collision of particle swarm is excited by the motion of damper cavity, and the frequency of damper is mainly provided by friction pendulum support, and by stopping means adjustment is set.Friction pendulum support can provide the swing of level to any direction, so this damper has effectiveness in vibration suppression to the vibration of horizontal any direction.The utility model adopts the method for additional cushion material, increases the energy that the collision of particle and cavity consumes, and improves energy efficiency.The utility model structural form is simple, adopt the particle of reliable durable cheapness as the carrier that provides of additional damping, advantage in conjunction with tuned mass damper and granule damper, friction by frequency modulation mass, particle collision and friction, friction pendulum support comes consumed energy, reduced the cost of conventional damper, thereby applicability and economy are stronger.
Description of drawings
Fig. 1 is a kind of positive elevational schematic view of friction pendulum support formula granule damper;
Fig. 2 is a kind of floor map of friction pendulum support formula granule damper;
Fig. 3 partly cuts open floor map for a kind of friction pendulum support;
Fig. 4 is a kind of elevational schematic view of friction pendulum support;
Number in the figure: 1-damper cavity, 2-particle swarm, 3-padded coaming, 4-friction pendulum support, 5-cover plate, 6-connecting axle, 7-base, 8-slide block, 9-slideway, 10-stopping means, 11-dead bolt plate.
The specific embodiment
Describe the specific embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Embodiment 1: as Fig. 1-shown in Figure 4, described device is by damper cavity 1, particle swarm 2, padded coaming 3 and friction pendulum support 4.Friction pendulum support is made up of cover plate 5, connecting axle 6, base 7, slide block 8, slideway 9 and stopping means 10.The slideway 9 of friction pendulum support 4 is the recessed spherical surface of stainless steel material making, and scribbles composite friction material in slide block 8 bottom surfaces, assists consumed energy when slide block 8 produces frictional force when slideway 9 slides, and friction material often adopts polytetrafluoroethylene (PTFE).Upper surface at slide block 8 arranges half spherical joint, and slide block 8 bottom surface radiuses are identical with bottom slideway 9 radiuses, and dock at the recessed position in the hemispherical joint of the projection on top and connecting axle 6 bottoms.Four friction pendulum supports 4 are fixed at 1 time four jiaos of place respectively at the damper cavity, thereby can the maintenance level when damper cavity 1 slides along sphere with slide block.Damper cavity 1 is cuboid or cylindrical cavity.Damper cavity 1 can be one or more, a plurality of damper cavitys 1 can level or vertical direction arrange that each cavity 1 inner tiling one deck particle swarm 2 is pasted with padded coaming 3 on damper cavity 1 inwall.Damper cavity 1 is fixed on the cover plate 5 of four friction pendulum supports 4, is provided with stopping means 10 between cover plate 5 and the base 7, to prevent it excessive swing takes place.At wind or/and under the geological process, this device can be in the horizontal direction, along a plurality of direction vibrations, on the one hand by the tuning structure natural frequency, pass through the kinetic energy of rolling, slip, friction, collision transfer and the dissipative structure of particle swarm 2 on the other hand, pasting padded coaming 3 can increase the energy that collision dissipates.And for friction pendulum support, the frictional force that produces when slideway 9 slides when slide block 8 also can help consumed energy.
Claims (2)
1. friction pendulum support formula granule damper, comprise damper cavity (1), particle swarm (2), padded coaming (3) and friction pendulum support (4), damper cavity (1) is cuboid or cylindrical cavity, damper cavity (1) is one or more, a plurality of damper cavity (1) levels or vertical direction are arranged, the inner tiling of each damper cavity (1) one deck particle swarm (2) is pasted with padded coaming (3) on damper cavity (1) inwall; It is characterized in that: damper cavity (1) is fixed on four friction pendulum supports (4) around the bottom, energy maintenance level when damper cavity (1) is slided along sphere with slide block; Each friction pendulum support (4) is by cover plate (5), connecting axle (6), base (7), slide block (8), slideway (9) and stopping means (10) are formed, base (7) top has down concave ball shape, described recessed spherical surface is slideway (9), slide block (8) is positioned at slideway (9) top, slide block (8) bottom surface scribbles composite friction material, when slide block (8) produces the auxiliary consumed energy of frictional force when slideway (9) slides, slide block (8) is by the hemispherical joint of superposed projection and the cylindrical body that is positioned at the bottom one that is formed by connecting, slide block (8) bottom surface radius is identical with slideway (9) radius, and dock with the position of connecting axle (6) bottom groove in the hemispherical joint of the projection on slide block (8) top; Cover plate (5) below is fixed at connecting axle (6) top, and cover plate (5) is placed on base (7) top, is provided with stopping means (10) between cover plate (5) and the base (7), is connected by dead bolt plate (11) between cover plate (5) and the base (7).
2. a kind of friction pendulum support formula granule damper according to claim 1, it is characterized in that described particle swarm (2) is made up of some spheric granules, be in steel ball, concrete ball, glass marble or the Ceramic Balls one or more, particle swarm (2) is 40% ~ 80% of damper cavity (1) horizontal area in the horizontal plane projected area, and particle swarm (2) volume is 5% ~ 20% of damper cavity (1) volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320030660 CN203129004U (en) | 2013-01-22 | 2013-01-22 | Support type particle damper of friction pendulum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320030660 CN203129004U (en) | 2013-01-22 | 2013-01-22 | Support type particle damper of friction pendulum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203129004U true CN203129004U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320030660 Expired - Fee Related CN203129004U (en) | 2013-01-22 | 2013-01-22 | Support type particle damper of friction pendulum |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485438A (en) * | 2013-10-08 | 2014-01-01 | 同济大学 | Semi-active control collision damper |
| CN104453004A (en) * | 2014-12-08 | 2015-03-25 | 同济大学 | Mixed energy dissipation and vibration reduction damping device |
| CN105318151A (en) * | 2014-07-01 | 2016-02-10 | 中国科学院过程工程研究所 | Support frame based on particle damping technology |
| CN105756216A (en) * | 2016-04-07 | 2016-07-13 | 北京建筑大学 | Tuned mass damper with collision energy dissipating function |
| CN106012709A (en) * | 2016-07-14 | 2016-10-12 | 同济大学 | Composite vibration isolation device based on particle damping and memory alloy material |
| CN106012708A (en) * | 2016-06-22 | 2016-10-12 | 株洲时代新材料科技股份有限公司 | Vibration reducing particles, mixed rail transportation foundation soil and vibration reducing method for rail transportation foundation |
| CN107143051A (en) * | 2017-05-22 | 2017-09-08 | 王阳 | A kind of anti-seismic building structure |
| CN111075046A (en) * | 2019-12-31 | 2020-04-28 | 同济大学 | Volume-variable particle damper |
| CN113090695A (en) * | 2021-03-19 | 2021-07-09 | 长安大学 | Combined sliding friction damper |
-
2013
- 2013-01-22 CN CN 201320030660 patent/CN203129004U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485438A (en) * | 2013-10-08 | 2014-01-01 | 同济大学 | Semi-active control collision damper |
| CN103485438B (en) * | 2013-10-08 | 2015-10-28 | 同济大学 | Semi-active control collision damper |
| CN105318151A (en) * | 2014-07-01 | 2016-02-10 | 中国科学院过程工程研究所 | Support frame based on particle damping technology |
| CN104453004A (en) * | 2014-12-08 | 2015-03-25 | 同济大学 | Mixed energy dissipation and vibration reduction damping device |
| CN104453004B (en) * | 2014-12-08 | 2016-08-24 | 同济大学 | A kind of mixing energy-eliminating shock-absorbing damping unit |
| CN105756216A (en) * | 2016-04-07 | 2016-07-13 | 北京建筑大学 | Tuned mass damper with collision energy dissipating function |
| CN106012708A (en) * | 2016-06-22 | 2016-10-12 | 株洲时代新材料科技股份有限公司 | Vibration reducing particles, mixed rail transportation foundation soil and vibration reducing method for rail transportation foundation |
| CN106012709A (en) * | 2016-07-14 | 2016-10-12 | 同济大学 | Composite vibration isolation device based on particle damping and memory alloy material |
| CN106012709B (en) * | 2016-07-14 | 2017-09-26 | 同济大学 | A kind of compound isolation mounting damped based on particle with memory alloy material |
| CN107143051A (en) * | 2017-05-22 | 2017-09-08 | 王阳 | A kind of anti-seismic building structure |
| CN111075046A (en) * | 2019-12-31 | 2020-04-28 | 同济大学 | Volume-variable particle damper |
| CN113090695A (en) * | 2021-03-19 | 2021-07-09 | 长安大学 | Combined sliding friction damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20170122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |