CN103016609A - Three-dimensional swing ball type tuned mass damper - Google Patents
Three-dimensional swing ball type tuned mass damper Download PDFInfo
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- CN103016609A CN103016609A CN2012105788816A CN201210578881A CN103016609A CN 103016609 A CN103016609 A CN 103016609A CN 2012105788816 A CN2012105788816 A CN 2012105788816A CN 201210578881 A CN201210578881 A CN 201210578881A CN 103016609 A CN103016609 A CN 103016609A
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- swing ball
- mass damper
- tuned mass
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Abstract
The invention relates to a three-dimensional swing ball type tuned mass damper. A buffer material blocks a transfer path of a vertical vibration load between a bracket and a precise device, a swinging ball spatially moves in a spherical groove of a rubber base for absorbing horizontal vibration energy of the bracket, the rubber base made of a high-damping material is collided so that three-dimensional kinetic energy of the swinging ball can be buffered and dissipated, the radiuses of the spherical groove and the swinging ball of the rubber base are designed according to the vibration frequency of the bracket so that the purpose of resonance is achieved, the vertical vibration of the bracket can be effectively reduced, the planar vibration can also be remarkably decreased, ad thus the spatial vibration of the precise device on the bracket is remarkably reduced, and the normal working of the precise device is kept. The whole three-dimensional swing ball type tuned mass damper has the advantages f good stability and durability, long service life, simple and compact structure, convenience for processing, manufacturing and installing, and high adaptability, and can be widely applied to vibration damping of various precise instrument devices arranged on the light bracket.
Description
Technical field
The invention belongs to engineering structure and instrument and equipment vibration damping field, particularly three-dimensional swing ball formula tuned mass damper.
Background technique
Roadbed and bridge at expressway and line of high-speed railway are equipped with the precision instrument and equipments such as a large amount of video monitorings, radio signal collection, transmission, and this kind equipment is mounted on light-duty pillar or the gantry type Steel Bracket mostly.Under the excitation of the dynamic loads such as wind load, loaded vehicle vehicle, bullet train, the light section support will produce dither, and the dither of support at first can affect the normal operation of the precision instrument and equipments such as video monitoring mounted thereto, radio signal collection, transmission, even may cause also that the precise electronic circuit damages, equipment scrapping, jeopardize traffic safety, simultaneously, vibration stress also can affect the use of Steel Bracket, can cause for a long time component fatigue fracture, support to collapse jeopardizing the traffic safety on the circuit.
At present, domestic mainly is to adopt conventional vibration reducing measure to the precision instrument and equipment on expressway and the high-speed railway and support thereof, as at the anchoring nut elastic washer etc. being set, this type of glissando only vertically can play certain cushioning effect, but vibrates then without any vibration-damping function for the substantially horizontal that support produces.
Summary of the invention
For the existing deficiency of the vibration damping equipment that solves built on stilts precision instrument and equipment of the prior art, the invention provides a kind of by padded coaming blocking-up vertical motion load, the horizontal vibration energy of the spatial motion dissipation support by swing ball can be from the three-dimensional swing ball formula tuned mass damper of the three-dimensional vibration damping of vertical, level.
The present invention solves the problems of the technologies described above the technological means that adopts: be provided with rubber sphere base at the protection cylinder inner bottom part with base plate; have a hemispherical groove on the end face of rubber sphere base; being provided with in hemispherical groove can the free rolling swing ball; the top of swing ball is provided with and can extenuates the upwards buffer layer of impact force of swing ball when upspringing in the protection cylinder, and the top of protection cylinder is provided with the connection top cover.
The difference of the radius of above-mentioned ball recess and swing ball radius is at least 1cm.
The cylinder end arranged outside of above-mentioned protection cylinder has cushion pad.
Above-mentioned cushion pad is poly-amino methyl cushion pad or rubber pad.
The diameter of above-mentioned buffer layer is greater than the diameter of swing ball and less than the internal diameter of protecting cylinder, and buffer layer is arranged on the lower end surface that connects top cover or is overlapped on the inwall of protection cylinder.
Above-mentioned buffer layer is rubber layer or poly-amino methyl layer.
Above-mentioned rubber sphere base is that damping ratio is not less than 12% high-damping rubber base.
Above-mentioned swing ball is steel ball, also can be to fill with the leaded steel ball.
Above-mentioned protection cylinder should be the insulating resin tubular article, to avoid thunderbolt.
The upper end diameter of above-mentioned connection top cover is greater than lower end diameter, and the lower end extends in the protection cylinder and protection cylinder inwall overlap joint.
Three-dimensional swing ball formula tuned mass damper of the present invention, by the bang path of padded coaming blocking-up vertical motion load between support and precision equipment, horizontal vibration energy by swing ball space motion dissipation support in the ball recess of rubber base plate, rubber base plate by the collision high damping material swing ball three dimensional motion energy that can cushion and dissipate, vibration frequency according to support designs the ball recess of rubber base plate and the radius of swing ball, reach the resonance purpose, not only can effectively reduce the support vertical motion, can also significantly reduce plane vibration, thereby significantly reduce the space oscillations of rack-mount precision equipment, keep the normal operation of precision equipment.Impact force when buffer layer being set above swing ball can effectively cushioning swing ball and upspring; use the protection cylinder of insulating resin material can effectively avoid thunderbolt or conduction; stability and the durability of whole member are high; long service life; simple and compact for structure; processing and fabricating and easy for installation, adaptability is high, can be widely used in all kinds of precision instrument and equipment vibration dampings that are installed on the light hydraulic support.
Description of drawings
Fig. 1 is the structural representation of three-dimensional swing ball formula tuned mass damper.
Embodiment
Now in conjunction with the accompanying drawings and embodiments damper of the present invention is described further, but the present invention is not limited only to following several mode of executions.
As shown in Figure 1, the three-dimensional swing ball formula tuned mass damper of the present embodiment connects and composes by connecting top cover 1, buffer layer 2, protection cylinder 3, swing ball 4, rubber sphere base 5 and cushion pad 6.
In the present embodiment, protection cylinder 3 is that the upper end is uncovered, lower end band base plate cylindric, by the insulating cylinder that epoxy resin is made, good stability, durability is high.
The connection top cover 1 that has by the epoxy resin material is overlapped in upper end at protection cylinder 3; be processed with screw at connection top cover 1; so that by threaded fastener precision equipment is installed and also arrange connect top cover 1 can closed protective cylinder 3; connect the upper end diameter of top cover 1 greater than lower end diameter; be processed with outside thread in the lower end that connects top cover 1; extend in the protection cylinder 3, with protection cylinder 3 upper end inner thread overlap joints.With threaded fastener buffer layer 2 is installed in the lower end surface that connects top cover 1, the geometrical shape of this buffer layer 2 is disk shapes, is to be made by the General Purpose Rubber material, and the end face diameter of buffer layer 2 is 8cm, less than the internal diameter of protection cylinder 3.
At the cylinder of protection cylinder 3 damping ratio being installed at the end is 18% high-damping rubber sphere base 5; the external shape of rubber sphere base 5 is cylindrical; its external diameter equates with the internal diameter of protection cylinder 3; can limit rubber sphere base 5 rocks in protection cylinder 3; be processed with a hemispherical groove in the end face central position of rubber sphere base 5; the radius of ball recess is 7cm, and the minimum thickness of sphere base is 2cm.In ball recess, be provided with a swing ball 4, swing ball 4 is that geometrical shape is the steel ball of ball, radius is 5cm, radius less than ball recess, and simultaneously less than the radius that connects top cover 1 lower surface buffer layer 2, guarantee Free-rolling in ball recess, when being subject to the vibrating load of the substantially horizontal that rubber sphere base 5 transmits, swing ball 4 Free-rollings and with high-damping rubber base collision, dissipates vibration energy.Simultaneously, excessive when vertical motion, when swing ball 4 was upspring, its impact force that makes progress was subdued by buffer layer 2 or is blocked, and then reached the buffer shock-absorbing purpose.
During use, can be on the base plate of protection cylinder 3 processing screw hole, can be installed between support and the precision equipment according to the installation method of routine.
In the present embodiment, be processed with a hemispherical groove in the end face central position of rubber sphere base 5, the radius of ball recess is 6cm, the minimum thickness of sphere base is 1cm, in ball recess, be provided with a swing ball 4, swing ball 4 is that geometrical shape is the steel ball of ball, and radius is 5cm, less than the radius of ball recess.Other parts and annexation thereof are identical with embodiment 1.
In the present embodiment, be processed with a hemispherical groove in the end face central position of rubber sphere base 5, the radius of ball recess is 7.5cm, the minimum thickness of sphere base is 2.5cm, in ball recess, be provided with a swing ball 4, swing ball 4 is that geometrical shape is the steel ball of ball, and radius is 5cm, less than the radius of ball recess.Other parts and annexation thereof are identical with embodiment 1.
In the three-dimensional swing ball formula tuned mass damper of above-described embodiment 1～3; base plate lower surface at protection cylinder 3 coheres the cushion pad 6 that has flexible urethane material to make; the diameter of cushion pad 6 is not less than protection cylinder 3 barrel external diameters; during use; cushion pad 6 can effectively be subdued vertical vibrating load every between protection cylinder 3 base plates and mounting bracket.Other parts and annexation thereof are all identical with corresponding embodiment.
In the three-dimensional swing ball formula tuned mass damper of above-described embodiment 1～3; base plate lower surface at protection cylinder 3 coheres the cushion pad 6 that has rubber material to make; the diameter of cushion pad 6 is not less than protection cylinder 3 barrel external diameters; during use; cushion pad 6 can effectively be subdued vertical vibrating load every between protection cylinder 3 base plates and mounting bracket.Protection cylinder 3 is made by insulation phenolic resin; its geometrical shape is the square tube shape; rubber sphere base 5 is to be that 15% high-damping rubber is made by damping ratio; the inner core of its external shape and protecting jacket is suitable; it also is the Square-edge post shapes; swing ball 4 in the ball recess on surface is steel balls of filling with lead thereon, and buffer layer 2 is to be made by urethane material.Other parts and annexation thereof are identical with corresponding embodiment.
In the present embodiment, buffer layer 2 is arranged on the top of swing ball 4, and its sidewall is fixedly connected with by the sidewall of threaded fastener with protection cylinder 3, and the upper surface of buffer layer 2 is 5mm with distance between the lower end surface that is connected top cover 1, is made by poly-urethane material.Other parts and annexation thereof are identical with embodiment 4 or embodiment 5.
Embodiment 7
In the three-dimensional swing ball formula tuned mass damper of the above embodiments 1～6, the geometrical shape of buffer layer 2 is inverted cone-shape, the lower end diameter of section of buffer layer 2 is greater than the diameter of section of swing ball 4, and other parts and annexation thereof are identical with corresponding embodiment.
Claims (10)
1. three-dimensional swing ball formula tuned mass damper; it is characterized in that: be provided with rubber sphere base (5) at protection cylinder (3) inner bottom part with base plate; have a hemispherical groove on the end face of rubber sphere base (5); being provided with in hemispherical groove can free rolling swing ball (4); the top of protection cylinder (3) interior swing ball (4) is provided with can extenuate the upwards buffer layer (2) of impact force of swing ball (4) when upspringing, and the top of protection cylinder (3) is provided with and connects top cover (1).
2. three-dimensional swing ball formula tuned mass damper according to claim 1, it is characterized in that: the difference of the radius of described ball recess and swing ball (4) radius is at least 1cm.
3. three-dimensional swing ball formula tuned mass damper according to claim 1 is characterized in that: the cylinder end arranged outside of described protection cylinder (3) has cushion pad (6).
4. three-dimensional swing ball formula tuned mass damper according to claim 3 is characterized in that: described cushion pad (6) is poly-amino methyl cushion pad or rubber pad.
5. three-dimensional swing ball formula tuned mass damper according to claim 1; it is characterized in that: the diameter of described buffer layer (2) is greater than the diameter of swing ball (4) and less than the internal diameter of protecting cylinder (3), and buffer layer (2) is arranged on the lower end surface that connects top cover (1) or is overlapped on the inwall of protection cylinder (3).
6. three-dimensional swing ball formula tuned mass damper according to claim 1 or 5, it is characterized in that: described buffer layer (2) is rubber layer or poly-amino methyl layer.
7. three-dimensional swing ball formula tuned mass damper according to claim 1, it is characterized in that: described rubber sphere base (5) is that damping ratio is not less than 12% high-damping rubber base.
8. three-dimensional swing ball formula tuned mass damper according to claim 1 is characterized in that: described swing ball (4) is steel ball or fills with the leaded steel ball.
9. three-dimensional swing ball formula tuned mass damper according to claim 1 is characterized in that: described protection cylinder (3) is the insulating resin tubular article.
10. three-dimensional swing ball formula tuned mass damper according to claim 1 is characterized in that: the upper end diameter of described connection top cover (1) is greater than lower end diameter, and the lower end extends in the protection cylinder (3) and protection cylinder (3) inwall overlap joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105788816A CN103016609A (en) | 2012-12-27 | 2012-12-27 | Three-dimensional swing ball type tuned mass damper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012105788816A CN103016609A (en) | 2012-12-27 | 2012-12-27 | Three-dimensional swing ball type tuned mass damper |
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| CN103016609A true CN103016609A (en) | 2013-04-03 |
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| CN2012105788816A Pending CN103016609A (en) | 2012-12-27 | 2012-12-27 | Three-dimensional swing ball type tuned mass damper |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014198277A1 (en) * | 2013-06-11 | 2014-12-18 | Vestas Wind Systems A/S | Wind turbine tower having a damper |
| CN108457395A (en) * | 2018-01-18 | 2018-08-28 | 同济大学 | Using the granule damper of optimization material |
| CN114673757A (en) * | 2022-03-08 | 2022-06-28 | 武汉理工大学 | Modular built-in PTRMD precast concrete block and fan vibration control method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1180800A (en) * | 1996-10-22 | 1998-05-06 | 三菱重工业株式会社 | Self-tuning type vibration damping apparatus |
| CN1313435A (en) * | 2001-04-29 | 2001-09-19 | 姜立平 | Earthquake damping unit and construction method for earthquake damping buildings |
| CN1342821A (en) * | 2001-04-29 | 2002-04-03 | 姜立平 | Earthquake damper and construction method for earthquake-damping building |
| CN1669747A (en) * | 2005-04-07 | 2005-09-21 | 浙江工业大学 | Pneumatic flexible actuator |
| JP2009150112A (en) * | 2007-12-20 | 2009-07-09 | Nobuo Taira | Earthquake resistant system for structure |
| CN202040268U (en) * | 2011-04-25 | 2011-11-16 | 同济大学 | Damping device and high wind power generation tower using same |
| CN102817423A (en) * | 2012-09-11 | 2012-12-12 | 同济大学 | Buffer-type suspension-type particle tuning quality damper |
| CN203098726U (en) * | 2012-12-27 | 2013-07-31 | 长安大学 | Three-dimensional swinging-ball type tuning quality damper |
-
2012
- 2012-12-27 CN CN2012105788816A patent/CN103016609A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1180800A (en) * | 1996-10-22 | 1998-05-06 | 三菱重工业株式会社 | Self-tuning type vibration damping apparatus |
| CN1313435A (en) * | 2001-04-29 | 2001-09-19 | 姜立平 | Earthquake damping unit and construction method for earthquake damping buildings |
| CN1342821A (en) * | 2001-04-29 | 2002-04-03 | 姜立平 | Earthquake damper and construction method for earthquake-damping building |
| CN1669747A (en) * | 2005-04-07 | 2005-09-21 | 浙江工业大学 | Pneumatic flexible actuator |
| JP2009150112A (en) * | 2007-12-20 | 2009-07-09 | Nobuo Taira | Earthquake resistant system for structure |
| CN202040268U (en) * | 2011-04-25 | 2011-11-16 | 同济大学 | Damping device and high wind power generation tower using same |
| CN102817423A (en) * | 2012-09-11 | 2012-12-12 | 同济大学 | Buffer-type suspension-type particle tuning quality damper |
| CN203098726U (en) * | 2012-12-27 | 2013-07-31 | 长安大学 | Three-dimensional swinging-ball type tuning quality damper |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014198277A1 (en) * | 2013-06-11 | 2014-12-18 | Vestas Wind Systems A/S | Wind turbine tower having a damper |
| US9657717B2 (en) | 2013-06-11 | 2017-05-23 | Vestas Wind Systems A/S | Wind turbine tower having a damper |
| CN108457395A (en) * | 2018-01-18 | 2018-08-28 | 同济大学 | Using the granule damper of optimization material |
| CN114673757A (en) * | 2022-03-08 | 2022-06-28 | 武汉理工大学 | Modular built-in PTRMD precast concrete block and fan vibration control method |
| CN114673757B (en) * | 2022-03-08 | 2024-05-14 | 武汉理工大学 | Modular built-in PTRMD precast concrete block and fan vibration control method |
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Application publication date: 20130403 |