CN110645297B - Suspension type half U-shaped TLD vibration damper for large tree wind prevention - Google Patents
Suspension type half U-shaped TLD vibration damper for large tree wind prevention Download PDFInfo
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- CN110645297B CN110645297B CN201910993877.8A CN201910993877A CN110645297B CN 110645297 B CN110645297 B CN 110645297B CN 201910993877 A CN201910993877 A CN 201910993877A CN 110645297 B CN110645297 B CN 110645297B
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- fixing
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- vibration
- water tank
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- 230000002265 prevention Effects 0.000 title abstract description 5
- 239000000725 suspension Substances 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 241000422846 Sequoiadendron giganteum Species 0.000 claims abstract description 22
- 238000013016 damping Methods 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 abstract description 15
- 230000005284 excitation Effects 0.000 abstract description 4
- 230000001788 irregular Effects 0.000 abstract description 4
- 239000010985 leather Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 241000238631 Hexapoda Species 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
-
- 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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a suspension type semi-U-shaped TLD vibration damper for big tree wind prevention, which comprises: the device comprises a semi-U-shaped water tank and a fixing device, wherein liquid is filled in the semi-U-shaped water tank, the fixing device comprises a fixing pull ring and a fixing rope, the fixing pull ring is connected with the semi-U-shaped water tank, and the fixing rope is respectively connected with the fixing pull ring and a vibration reduction structure. According to the vibration reduction principle of the tuned liquid damper, friction force generated by shaking of liquid in the semi-U-shaped water tank and crushing waves generated under strong excitation dissipate the energy of vibration of a vibration reduction structure, so that the vibration reduction effect of the vibration reduction structure is realized; the semi-U-shaped design plays a role in guiding transverse vibration, so that water flow regularly shakes, internal consumption caused by irregular water flow shaking only during transverse vibration is avoided, and the vibration reduction effect is improved; the connection point of the fixing rope and the semi-U-shaped water tank as well as the vibration-damping structure and the contact point of the semi-U-shaped water tank and the vibration-damping structure form a triangle, thereby playing a better role in fixing.
Description
Technical Field
The invention relates to the field of vibration reduction devices, in particular to a suspension type semi-U-shaped TLD vibration reduction device for wind prevention of a big tree.
Background
With the development of economy in China, building of building trays and traffic roads in various areas is seen everywhere, and the phenomenon that big trees are transplanted for greening for decades and even hundreds of years is that the big trees are transplanted just for a long time, the root system is unstable, wind power between two buildings is quite strong, especially when typhoons are encountered, and the situation that various precious big trees are blown down is frequent.
The vibration damping principle of the tuned liquid damper (Tuned Liquid Damper, abbreviated as TLD) is that an external stimulus vibrates the structure, thereby driving the TLD in motion. The traditional TLD vibration damper makes the energy of main structure vibration be dissipated by the friction force generated by shaking and the crushing wave generated under strong excitation through the shaking of the liquid in the box body, so as to realize the vibration damping of the main structure, but the traditional TLD vibration damper is generally a square box, when water flow shakes transversely, the internal consumption is caused by irregular shaking, the vibration damping effect is reduced, and the vibration damper is erected and fixed and is not suitable for big trees.
Disclosure of Invention
In order to solve the defects in the prior art and achieve better vibration reduction effect, a fixing mode which is more suitable for big trees is found, and the invention adopts the following technical scheme:
a hanging semi-U-shaped TLD vibration damper for large tree windbreaks comprising: the semi-U-shaped water tank is internally filled with liquid, the fixing device comprises a fixing pull ring and a fixing rope, the fixing pull ring is connected with the semi-U-shaped water tank, and the fixing rope is respectively connected with the fixing pull ring and the vibration reduction structure. According to the vibration reduction principle of the tuned liquid damper, friction force generated by shaking of liquid in the semi-U-shaped water tank and crushing waves generated under strong excitation dissipate the energy of vibration of a vibration reduction structure, so that the vibration reduction effect of the vibration reduction structure is realized; the semi-U-shaped design plays a role in guiding transverse vibration, so that water flow regularly shakes, internal consumption caused by irregular water flow shaking only during transverse vibration is avoided, and the vibration reduction effect is improved; the connection point of the fixing rope and the semi-U-shaped water tank as well as the vibration-damping structure and the contact point of the semi-U-shaped water tank and the vibration-damping structure form a triangle, thereby playing a better role in fixing.
The fixed pull ring divide to go up fixed pull ring, lower fixed pull ring, go up fixed pull ring with half U type water tank's rear end is connected, lower fixed pull ring with half U type water tank's front end is connected, plays better fixed effect.
The fixing device comprises a fixing hook plate and a fixing belt, wherein the fixing hook plate is connected with the semi-U-shaped water tank, the fixing belt is bound around the vibration reduction structure, and the fixing hook plate is inserted between the fixing belt and the vibration reduction structure. The displacement of the semi-U-shaped water tank in the radial direction is limited by the lamination of the fixed hook plate and the vibration-damping structure; the fixing hook plate and the vibration damping structure are bound through the fixing belt, so that the displacement of the half U-shaped water tank in the vertical direction and the transverse direction is limited.
The groove of the fixed hook plate is arc-shaped. When the fixing belt is a thicker rope or a rubber binding belt, the edge is more circular arc-shaped when the fixing belt is tightened, and the fixing belt can be better attached to the circular arc-shaped groove of the fixing hook plate.
The contact surface of the fixed hook plate and the vibration damping structure is arc-shaped, so that the vibration damping device can be better attached to the branches of the big tree to be damped.
The U-shaped corner of the half U-shaped water tank is arc-shaped, and plays a better guiding role in the vibration direction.
The tail end of the half U-shaped water tank is provided with an opening for adjusting the depth of liquid in the half U-shaped water tank, so that the resonance frequency of the vibration damper is controlled, the frequency of the vibration damper can be consistent with the natural frequency of a vibration damper structure, and the optimal vibration damper effect is achieved.
The open hole is provided with a hole cover to prevent foreign matters such as dust, insects and the like from entering, and liquid from shaking out or evaporating.
The vibration reduction devices are arranged on the stress side of the vibration reduction structure and the side opposite to the stress side in pairs, and play a role in balancing.
The invention has the advantages that:
the mounting position of the small-sized suspension type semi-U-shaped TLD vibration damper is highly random and can be freely adjusted, and vibration energy of a vibration damper structure can be effectively reduced; the semi-U-shaped design enables water flow to shake regularly, and vibration reduction effect is improved; the depth of the liquid in the semi-U-shaped water tank is adjustable, so that the liquid tank is suitable for various vibration frequencies; the vibration damper can be flexibly assembled, combined and used, and has reasonable manufacturing cost and simple use. When the vibration-damping equipment is a towering big tree, the vibration reaction of the equipment under the action of wind vibration load can be effectively reduced, and the anti-toppling effect is achieved; the binding type and attaching fixing mode is more suitable for big trees.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a top view of the present invention.
Fig. 4 is a schematic view of the installation of the vibration damping device of the present invention.
In the figure: 1. fixing the hook plate; 2. a half U-shaped water tank; 3. a lower fixing pull ring; 4. a water inlet spiral cover; 5. and (5) fixing a pull ring.
Detailed Description
The invention is described in detail below with reference to the drawings and the specific embodiments.
As shown in fig. 1, 2 and 3, a hanging half U-shaped TLD vibration damper for wind prevention of a big tree, comprising: the fixing device comprises an upper fixing pull ring 5, a lower fixing pull ring 3 and a fixing rope, wherein the upper fixing pull ring 5 is welded with the rear end of the half U-shaped water tank 2, the lower fixing pull ring 3 is welded with the front end of the half U-shaped water tank 2, and the fixing rope is respectively connected with the upper fixing pull ring 5, the lower fixing pull ring 3 and the big branch. According to the vibration reduction principle of the tuned liquid damper, friction force generated by shaking of liquid in the semi-U-shaped water tank 2 and broken waves generated under strong excitation dissipate the energy of shaking of the big tree caused by wind power, so that the vibration reduction effect on the big tree is realized; the semi-U-shaped design plays a role in guiding transverse vibration, so that water flow regularly shakes, internal consumption caused by irregular water flow shaking when only transverse shaking occurs is avoided, and the vibration reduction effect is improved; the fixed rope forms a triangle with the connection point of the half U-shaped water tank 2 and the big branch and the contact point of the half U-shaped water tank 2 and the big branch respectively, thereby playing a better role in fixation.
The fixing device further comprises a fixing hook plate 1 and a leather binding belt, the fixing hook plate 1 is welded with the semi-U-shaped water tank 2, the groove of the fixing hook plate 1 is arc-shaped, and the contact surface of the fixing hook plate 1 and the trunk is arc-shaped, so that the vibration damper can be better attached to the trunk subjected to vibration damping; the leather strap is bound around the big branch, and the fixing hook plate 1 is inserted between the leather strap and the big branch. The displacement of the half U-shaped water tank 2 in the radial direction is limited by the fit of the fixed hook plate 1 and the big branch; the semi-U-shaped water tank 2 is limited to be displaced vertically and horizontally by binding the fixed hook plate 1 and the big branch by the leather binding band.
The U-shaped corner of the semi-U-shaped water tank 2 is arc-shaped, so that better guiding effect is achieved on the vibration direction; the inner side of the tail end of the half U-shaped water tank 2 is provided with a water inlet which is used for adjusting the depth of liquid in the half U-shaped water tank 2 so as to control the resonance frequency of the vibration damper, so that the frequency of the vibration damper can be consistent with the natural frequency of a big branch, and the optimal vibration damper effect is achieved; the water inlet is provided with a water inlet spiral cover 4 of the knurling handle, so that the entry of foreign matters such as dust, insects and the like and the shaking out or evaporation of liquid are prevented, and meanwhile, the knurling design is convenient to screw and unscrew the water inlet.
As shown in fig. 4, the vibration reduction devices are installed on the windward side and the leeward side of the big tree trunk in pairs, and as the big tree is not directly blown down in most cases, the vibration reduction devices are repeatedly swayed until the big tree is not supported and blown down, and the vibration reduction devices are installed on the windward side and the leeward side of the big tree in pairs, so that the balance effect can be achieved.
Claims (6)
1. A hanging semi-U-shaped TLD vibration damper for large tree windbreaks comprising: the device is characterized in that liquid is filled in the half U-shaped water tank (2), the fixing device comprises a fixing pull ring and a fixing rope, the fixing pull ring is connected with the half U-shaped water tank (2), and the fixing rope is respectively connected with the fixing pull ring and a vibration-damping structure;
the fixing pull ring is divided into an upper fixing pull ring (5) and a lower fixing pull ring (3), the upper fixing pull ring (5) is connected with the rear end of the half U-shaped water tank (2), and the lower fixing pull ring (3) is connected with the front end of the half U-shaped water tank (2);
the fixing device comprises a fixing hook plate (1) and a fixing belt, wherein the fixing hook plate (1) is connected with the semi-U-shaped water tank (2), the fixing belt is bound around the vibration-damped structure, and the fixing hook plate (1) is inserted between the fixing belt and the vibration-damped structure;
the vibration reduction devices are arranged on the stress side of the structure to be damped and the side opposite to the stress side in pairs.
2. A hanging half U-shaped TLD damping device for wind-proof of big tree according to claim 1, characterized in that the groove of said fixed hook plate (1) is arc-shaped.
3. A hanging half U-shaped TLD damping apparatus for wind-proof of big tree according to claim 1, wherein the contact surface of said fixed hook plate (1) and said structure to be damped is arc-shaped.
4. A hanging half U-shaped TLD damping apparatus for wind protection of big tree according to claim 1, wherein the U-shaped corner of said half U-shaped water tank (2) is arc-shaped.
5. A hanging half U-shaped TLD damping apparatus for wind-proof of big tree as claimed in claim 1, wherein said half U-shaped water tank (2) has an opening at its tail end.
6. A hanging half U-shaped TLD damping apparatus for wind-resistant big tree as claimed in claim 5, wherein said opening is provided with a hole cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910993877.8A CN110645297B (en) | 2019-10-18 | 2019-10-18 | Suspension type half U-shaped TLD vibration damper for large tree wind prevention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910993877.8A CN110645297B (en) | 2019-10-18 | 2019-10-18 | Suspension type half U-shaped TLD vibration damper for large tree wind prevention |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110645297A CN110645297A (en) | 2020-01-03 |
| CN110645297B true CN110645297B (en) | 2023-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910993877.8A Active CN110645297B (en) | 2019-10-18 | 2019-10-18 | Suspension type half U-shaped TLD vibration damper for large tree wind prevention |
Country Status (1)
| Country | Link |
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| CN (1) | CN110645297B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06169660A (en) * | 1992-12-03 | 1994-06-21 | Fujita Corp | Method for fixing artificially growing tree and device therefor |
| JP2005282140A (en) * | 2004-03-30 | 2005-10-13 | Daiwa House Ind Co Ltd | Tld type building vibration control system |
| KR20080029419A (en) * | 2006-09-29 | 2008-04-03 | 주식회사 포스코건설 | A tuned mass and liquid damper |
| KR20110031767A (en) * | 2009-09-21 | 2011-03-29 | 주식회사 한국도시녹화 | Device against wind pressure on the green roof system |
| CN105672514A (en) * | 2016-03-10 | 2016-06-15 | 苏州科技学院 | Vortex vibration energy consumption type tuned liquid damper |
| CN109826330A (en) * | 2019-01-30 | 2019-05-31 | 北京工业大学 | The adjustable more bending chamber composite particles of the natural frequency of vibration tune vibration absorber |
| CN210949642U (en) * | 2019-10-18 | 2020-07-07 | 浙江工业大学 | Half U type TLD damping device of suspension type |
-
2019
- 2019-10-18 CN CN201910993877.8A patent/CN110645297B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06169660A (en) * | 1992-12-03 | 1994-06-21 | Fujita Corp | Method for fixing artificially growing tree and device therefor |
| JP2005282140A (en) * | 2004-03-30 | 2005-10-13 | Daiwa House Ind Co Ltd | Tld type building vibration control system |
| KR20080029419A (en) * | 2006-09-29 | 2008-04-03 | 주식회사 포스코건설 | A tuned mass and liquid damper |
| KR20110031767A (en) * | 2009-09-21 | 2011-03-29 | 주식회사 한국도시녹화 | Device against wind pressure on the green roof system |
| CN105672514A (en) * | 2016-03-10 | 2016-06-15 | 苏州科技学院 | Vortex vibration energy consumption type tuned liquid damper |
| CN109826330A (en) * | 2019-01-30 | 2019-05-31 | 北京工业大学 | The adjustable more bending chamber composite particles of the natural frequency of vibration tune vibration absorber |
| CN210949642U (en) * | 2019-10-18 | 2020-07-07 | 浙江工业大学 | Half U type TLD damping device of suspension type |
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| CN110645297A (en) | 2020-01-03 |
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