CN110108466A - A kind of viscous damper structure testing machine vibration absorber - Google Patents
A kind of viscous damper structure testing machine vibration absorber Download PDFInfo
- Publication number
- CN110108466A CN110108466A CN201910415937.8A CN201910415937A CN110108466A CN 110108466 A CN110108466 A CN 110108466A CN 201910415937 A CN201910415937 A CN 201910415937A CN 110108466 A CN110108466 A CN 110108466A
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- China
- Prior art keywords
- viscous damper
- testing machine
- test specimen
- damper device
- viscous
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/10—Adhesion
Abstract
The present invention relates to a kind of viscous damper structure testing machine vibration absorbers, belong to vibration damping control field, and vibration absorber includes viscous damper, stretch section support, junction steel plate, bolt.Viscous damper device is set between structure testing machine lower beam and basis, viscous damper device is arranged symmetrically in around test specimen；Viscous damper device supports two parts to form by junction steel plate and bolt combination by viscous damper and stretch section；Viscous damper device and the common stress of test specimen, until load is downloaded；Force snesor is arranged in test specimen lower end, for measuring test specimen load.Viscous damper device is arranged in the present invention during large-sized structure experiment machine is tested, can be to avoid the vibration problem of testing machine caused by the brittle break test specimen and surrounding enviroment.The present invention has the advantages that not sharing testing machine is further applied load, can be recycled.
Description
Technical field
The present invention relates to a kind of viscous damper structure testing machine vibration absorbers, are using suitable for large-sized structure experiment machine
Body vibration and ambient vibration caused by destroying in the process because of brittleness test specimen, belong to vibration damping control field.
Background technique
In building structure increasingly enlarged today, large-sized structure experiment machine in building field using more and more extensive,
Have become colleges and universities, the essential testing equipment of R&D institution.Large-sized structure experiment machine is in use because brittleness is tried
Part destroys caused testing machine and the vibration of Adjacent Buildings is especially apparent, and strong vibration can cause problems, such as damages
Testing machine self performance；The safety of hazard test machine periphery staff and building；During large-scale full-scale specimen is because of test
The judder of generation and cannot complete；Influence the accuracy of test result.Typical large-sized structure experiment machine both at home and abroad, usually
Vibration damping is carried out using on basis and the setting modes such as spring damping element and viscous damper in rack.For built large size
Structure testing machine, traditional vibration isolation means are difficult to carry out, and higher cost.Therefore in the case where not changing testing machine structure,
It realizes the vibration generated during reducing test, is the trend of structural test technology development.
Viscous damper is velocity-dependent damper, and the damping force that it is generated is related with the flow velocity that liquid is pressurized, flow velocity
Faster, the power of generation is bigger, the vibration damping suitable for large-sized structure experiment machine.When structure testing machine loading specimen, viscous resistance
Buddhist nun's device does not almost stress, and when test specimen destroys, viscous damper is by the impact load, provides biggish damping force, support test
Machine loads crossbeam, and the load for applying testing machine steadily unloads.
The principle of viscous damper is to be passed junction structure during compressive deformation or flow at high speed using working media
It passs the portion of energy come to be converted into thermal energy and dissipate, reaches and alleviate impact load, reduce the structural vibration that test generates in the process.
China Patent No. CN201410001488.X, publication date on April 23rd, 2014, a kind of entitled peace of innovation and creation
Large-sized structure experiment machine equipped with vibration absorber, this application patent disclose a kind of between the upper and lower crossbeam of structure testing machine
The testing machine of locking device is installed.Disadvantage is that locking device is arranged in the upper and lower crossbeam of testing machine, there is certain vibration damping
Effect, but vibration damping range is relatively limited to, and testing machine can still have oscillation phenomenon when brittleness test specimen destroys, therefore vibration absorber can be set
It sets around loading specimen.
Support is provided when the advantage of the invention is that viscous damper device almost not stressing in load, test specimen destroys
Power can be recycled, and testing machine integral vibration damping effect is preferable, and disadvantage is that device can occupy test space.
Summary of the invention
To reduce the vibration that large-sized structure experiment machine generates in use, the invention proposes a kind of viscous dampers
Structure testing machine vibration absorber.
To achieve the above object, design scheme of the invention is as follows: a kind of viscous damper structure testing machine vibration absorber,
Viscous damper device 1 includes viscous damper 6, stretch section support 7, junction steel plate 8 and bolt 9；In viscous damper 6 and bullet
Property section support 7 upper/lower terminal be welded with the junction steel plate 8 for being equipped with threaded hole, by bolt 9 by viscous damper 6 and bullet
Property section support 7 combine；Stretch section support 7 is made of the various sizes of support of multistage.
Viscous damper device 1 is arranged in around test specimen 4, drives testing machine lower beam 3 to apply test specimen 4 by load cylinder
Loading carries, and makes viscous damper device 1 and the common stress of test specimen 4, and after 4 compression damage of test specimen, viscous damper device 1 is to hold
The load that load testing machine is applied, until unloading completely；Viscous damper device 1 and test specimen 4 are arranged under basis 2 and testing machine
Between crossbeam 3；For viscous damper device 1 using being arranged symmetrically, quantity is 2 sets or 4 sets；Force snesor 5 is arranged in the upper of test specimen 4
End or lower end.
The stretch section supports 7 material selection steel or concrete, and shape selects H-shaped, C-shaped, circle or rectangle.
The present invention adds viscous damper device on large-sized structure experiment machine, and this method haves no need to change testing machine
Original structure has and does not share the advantages such as testing machine load, Ke Xunhuanliyong.
Detailed description of the invention
Fig. 1 is a kind of viscous damper structure testing machine vibration absorber schematic diagram proposed by the present invention.
Fig. 2 is a kind of viscous damper device elevational schematic view proposed by the present invention.
In figure: 1, viscous damper device, 2, basis, 3, testing machine lower beam, 4, test specimen, 5, force snesor, 6, viscous
Damper, 7, stretch section support, 8, junction steel plate, 9, bolt.
Specific embodiment
Invention is further explained with reference to the accompanying drawings and detailed description.
The pilot system of Fig. 1 includes viscous damper device 1, basis 2, testing machine lower beam 3, test specimen 4 and power sensing
Device；It is characterized by: viscous damper device 1 and test specimen 4 are placed between basis 2 and testing machine lower beam 3, force snesor 5
It is placed in 4 lower end of test specimen, forms a pilot system；Testing machine lower beam 3 is driven to apply lotus to test specimen 4 by load cylinder
It carries, viscous damper device 1 and the common stress of test specimen 4, after the destruction of test specimen 4, viscous damper device 1 can undertake testing machine
The load applied, the potential energy for storing testing machine gradually unload, and reach effectiveness in vibration suppression.
The viscous damper device 1 is symmetrically positioned about in test specimen 4, and quantity is 2 sets or 4 sets, viscous damper
Device 1 and test specimen 4 are arranged between basis 2 and testing machine lower beam 3.
Viscous damper device 1, which divides, supports 7 two parts for viscous damper 6 and stretch section, upper and lower in stretch section support 7
The junction steel plate 8 of end welding punching is combined viscous damper 6 and stretch section support 7 by bolt 9.Stretch section branch
Support 7 is made of the various sizes of support of multistage.
Load suffered by test specimen 4 can be measured by force snesor 5, and force snesor 5 is placed on 4 upper end of test specimen or lower end.
The junction steel plate 8 that stretch section support 7 is welded, it is characterised in that firm welding, and keep 8 holding of junction steel plate horizontal
State.
Claims (4)
1. a kind of viscous damper structure testing machine vibration absorber, it is characterised in that: viscous damper device (1) is arranged in test specimen
(4) it around, is further applied load by load cylinder driving testing machine lower beam (3) to test specimen (4), makes viscous damper device (1)
With test specimen (4) common stress, after test specimen (4) compression damage, lotus that viscous damper device (1) is applied to undertake testing machine
It carries, until unloading completely；Viscous damper device (1) and test specimen (4) are arranged between basic (2) and testing machine lower beam (3)；
For viscous damper device (1) using being arranged symmetrically, quantity is 2 sets or 4 sets；Force snesor (5) be arranged in test specimen (4) upper end or
Lower end.
2. a kind of viscous damper structure testing machine vibration absorber according to claim 1, it is characterised in that: viscous damping
Device device (1) includes viscous damper (6), stretch section support (7), junction steel plate (8) and bolt (9)；In viscous damper (6)
It is welded with the upper/lower terminal of stretch section support (7) and is equipped with the junction steel plate (8) of threaded hole, by bolt (9) by viscous resistance
Buddhist nun's device (6) is combined with stretch section support (7)；Stretch section supports (7) to be made of the various sizes of support of multistage.
3. a kind of viscous damper structure testing machine vibration absorber according to claim 1, it is characterised in that: the bullet
Property section support (7) material selection steel or concrete, shape selects H-shaped, C-shaped, circle or rectangle.
4. a kind of viscous damper structure testing machine vibration absorber according to claim 1, it is characterised in that: stretch section branch
The junction steel plate (8) that support (7) is welded keeps horizontality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910415937.8A CN110108466A (en) | 2019-05-19 | 2019-05-19 | A kind of viscous damper structure testing machine vibration absorber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910415937.8A CN110108466A (en) | 2019-05-19 | 2019-05-19 | A kind of viscous damper structure testing machine vibration absorber |
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| Publication Number | Publication Date |
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| CN110108466A true CN110108466A (en) | 2019-08-09 |
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| CN201910415937.8A Pending CN110108466A (en) | 2019-05-19 | 2019-05-19 | A kind of viscous damper structure testing machine vibration absorber |
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| CN (1) | CN110108466A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749429A (en) * | 2019-10-28 | 2020-02-04 | 常州市科恒液压机械有限公司 | Fixture for detecting horizontal performance of viscous damping cylinder |
| CN112903220A (en) * | 2021-01-29 | 2021-06-04 | 北京工业大学 | Speed-related rigidity auxiliary test device |
| CN112903445A (en) * | 2021-01-29 | 2021-06-04 | 北京工业大学 | Auxiliary test device applying non-Newtonian fluid |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101559396A (en) * | 2009-05-15 | 2009-10-21 | 江苏大学 | Triaxial vibration-decreasing/vibration-isolating platform of hammer crusher |
| CN201795963U (en) * | 2010-09-10 | 2011-04-13 | 胡少伟 | System for testing fracture of concrete |
| CN102288485A (en) * | 2011-05-12 | 2011-12-21 | 河海大学 | Large-sized fully graded concrete axial-tension tester |
| CN103743586A (en) * | 2014-01-02 | 2014-04-23 | 北京工业大学 | Large-scale structure testing machine provided with damping device |
| CN103969123A (en) * | 2014-04-09 | 2014-08-06 | 北京工业大学 | Combined structural test loading device |
| CN206072204U (en) * | 2016-08-25 | 2017-04-05 | 湖州益环环保工程有限公司 | A kind of new viscous damper |
| CN206419410U (en) * | 2017-01-18 | 2017-08-18 | 南京大德减震科技有限公司 | A kind of length adjustable viscous damper device |
| CN107725667A (en) * | 2017-09-12 | 2018-02-23 | 中山大学 | A kind of high-strength vibration isolation post of large-scale mechanical test |
| CN108914764A (en) * | 2018-08-29 | 2018-11-30 | 广州大学 | A kind of bridge energy-dissipating and shock-absorbing mechanism using viscous damper |
-
2019
- 2019-05-19 CN CN201910415937.8A patent/CN110108466A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101559396A (en) * | 2009-05-15 | 2009-10-21 | 江苏大学 | Triaxial vibration-decreasing/vibration-isolating platform of hammer crusher |
| CN201795963U (en) * | 2010-09-10 | 2011-04-13 | 胡少伟 | System for testing fracture of concrete |
| CN102288485A (en) * | 2011-05-12 | 2011-12-21 | 河海大学 | Large-sized fully graded concrete axial-tension tester |
| CN103743586A (en) * | 2014-01-02 | 2014-04-23 | 北京工业大学 | Large-scale structure testing machine provided with damping device |
| CN103969123A (en) * | 2014-04-09 | 2014-08-06 | 北京工业大学 | Combined structural test loading device |
| CN206072204U (en) * | 2016-08-25 | 2017-04-05 | 湖州益环环保工程有限公司 | A kind of new viscous damper |
| CN206419410U (en) * | 2017-01-18 | 2017-08-18 | 南京大德减震科技有限公司 | A kind of length adjustable viscous damper device |
| CN107725667A (en) * | 2017-09-12 | 2018-02-23 | 中山大学 | A kind of high-strength vibration isolation post of large-scale mechanical test |
| CN108914764A (en) * | 2018-08-29 | 2018-11-30 | 广州大学 | A kind of bridge energy-dissipating and shock-absorbing mechanism using viscous damper |
Non-Patent Citations (1)
| Title |
|---|
| 韩静: "结构试验机振动机理与减振措施的数值模拟", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749429A (en) * | 2019-10-28 | 2020-02-04 | 常州市科恒液压机械有限公司 | Fixture for detecting horizontal performance of viscous damping cylinder |
| CN112903220A (en) * | 2021-01-29 | 2021-06-04 | 北京工业大学 | Speed-related rigidity auxiliary test device |
| CN112903445A (en) * | 2021-01-29 | 2021-06-04 | 北京工业大学 | Auxiliary test device applying non-Newtonian fluid |
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Application publication date: 20190809 |
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