CN210949642U

CN210949642U - Half U type TLD damping device of suspension type

Info

Publication number: CN210949642U
Application number: CN201921753626.4U
Authority: CN
Inventors: 刘和坤; 杨佳欢; 高增梁; 丁振宇; 章林烨; 胡家傲
Original assignee: Zhejiang University of Technology ZJUT
Current assignee: Zhejiang University of Technology ZJUT
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-07-07
Anticipated expiration: 2029-10-18

Abstract

The utility model discloses a half U type TLD vibration damper of suspension type, include: half U type water tank, fixing device, half U type water tank are annotated and are had liquid, and fixing device is connected with half U type water tank including fixed pull ring, fixed rope, fixed pull ring, fixed rope respectively with fixed pull ring with by the damping structure connection. According to the vibration reduction principle of the tuned liquid damper, friction force generated by liquid shaking in the semi-U-shaped water tank and broken waves generated under strong excitation dissipate the energy of vibration of the 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 during transverse vibration is avoided, and the vibration reduction effect is improved; the fixed rope forms the triangle with half U type water tank and the contact point by damping structure with the tie point of half U type water tank and by damping structure, plays better fixed action.

Description

Half U type TLD damping device of suspension type

Technical Field

The utility model belongs to the technical field of the damping device and specifically relates to a half U type TLD damping device of suspension type has been related to.

Background

With the development of economy in China, buildings and traffic roads in various regions are constructed everywhere, and the phenomenon that various big trees for decades or even hundreds of years are transplanted for greening is also compared, wherein a new tree is just transplanted, the root system is unstable, the wind power between buildings is quite strong, and particularly, the situation that various precious big trees are blown down in windy days is common.

The damping principle of Tuned Liquid Dampers (TLDs) is that an external excitation causes a structure to vibrate, thereby driving the TLD to move. Traditional TLD vibration damper through rocking of liquid in the box, makes the energy of main structure vibration be rocked produced frictional force, the broken wave that produces under the strong excitation and the dissipation to the realization is to the damping of main structure, but traditional TLD vibration damper is square case generally, and when rivers transversely rocked, often because of rocking the irregularity and lead to the internal consumption, reduced the damping effect, and erect, fixed not be applicable to big tree.

Disclosure of Invention

For solving prior art's not enough, reach better damping effect, find the fixed mode that is more suitable for big tree, the utility model discloses a following technical scheme:

half U type TLD damping device of suspension type includes: 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, and the fixing rope is respectively connected with the fixing pull ring and the damped structure. According to the vibration reduction principle of the tuned liquid damper, friction force generated by liquid shaking in the semi-U-shaped water tank and broken waves generated under strong excitation dissipate the energy of vibration of the 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 during transverse vibration is avoided, and the vibration reduction effect is improved; the connecting point of the fixing rope, the half U-shaped water tank and the damped structure and the contact point of the half U-shaped water tank and the damped structure form a triangle, so that a better fixing effect is achieved.

The fixing pull ring is divided into an upper fixing pull ring and a lower fixing pull ring, the upper fixing pull ring is connected with the rear end of the half U-shaped water tank, and the lower fixing pull ring is connected with the front end of the half U-shaped water tank, so that a better fixing effect is achieved.

The fixing device comprises a fixing hook plate and a fixing band, the fixing hook plate is connected with the semi-U-shaped water tank, the fixing band is bound around the vibration damping structure, and the fixing hook plate is inserted between the fixing band and the vibration damping structure. The displacement of the semi-U-shaped water tank in the radial direction is limited by the attachment of the fixed hook plate and the damped structure; the fixed hook plate and the bound vibration damping structure are bound through the fixing band, so that the vertical and horizontal displacement of the half U-shaped water tank is limited.

The groove of the fixed hook plate is arc-shaped. When the fixing band is a thick rope or a rubber binding band, the edge is more arc-shaped when tightened, and the fixing band can be better attached to the arc-shaped groove of the fixing hook plate.

The contact surface of the fixed hook plate and the damped structure is arc-shaped, so that the damping device can be better attached to the branches of the damped big tree.

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 damping structure, and the optimal vibration damping effect is achieved.

The hole is provided with a hole cover to prevent foreign matters such as dust, insects and the like from entering and prevent liquid from shaking out or evaporating.

The vibration damping devices are arranged on the force bearing side and the surface back to the force bearing side of the vibration damped structure in pairs, and play a balance role.

The utility model discloses an advantage and beneficial effect lie in:

the mounting position of the small suspension type half U-shaped TLD vibration damper is high in randomness and can be freely adjusted, and vibration energy of a vibration damping structure can be effectively reduced; the semi-U-shaped design ensures that water flow regularly shakes, so that the vibration reduction effect is improved; the depth of the liquid in the semi-U-shaped water tank can be adjusted, so that the semi-U-shaped water tank is suitable for various vibration frequencies; the vibration damper can be flexibly assembled and combined for use, and has reasonable manufacturing cost and simple use. When the equipment to be damped is a tall 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 and attaching fixing mode is more suitable for big trees.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a plan 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 fixed pull ring; 4. a water inlet screw cap; 5. and a pull ring is fixed.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, 2 and 3, a suspension type half U-shaped TLD damping device includes: half U type water tank 2, fixing device includes fixed pull ring 5, lower fixed pull ring 3, fixed rope, go up fixed pull ring 5 with the rear end welding of half U type water tank 2, lower fixed pull ring 3 with the front end welding of half U type water tank 2, fixed rope respectively with last fixed pull ring 5, lower fixed pull ring 3 and big tree branch are connected. According to the vibration reduction principle of the tuned liquid damper, friction force generated by liquid shaking in the half-U-shaped water tank 2 and broken waves generated under strong excitation dissipate the energy of the big tree shaking due to 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 during transverse shaking is avoided, and the vibration reduction effect is improved; the fixed rope forms the triangle with the tie point of half U type water tank 2 and big branch respectively to and the contact point of half U type water tank 2 and big branch, plays better fixed action.

The fixing device further comprises a fixing hook plate 1 and a leather binding band, the fixing hook plate 1 is welded with the semi-U-shaped water tank 2, a groove of the fixing hook plate 1 is arc-shaped, and a contact surface of the fixing hook plate 1 and the big tree trunk is arc-shaped, so that the vibration damping device can better attach to the big tree trunk subjected to vibration damping; the leather straps are bound around the big tree branches, and the fixing hook plate 1 is inserted between the leather straps and the big tree branches. The displacement of the semi-U-shaped water tank 2 in the radial direction is limited by the attachment of the fixed hook plate 1 and the branches of the big tree; the leather bandage is used for binding the fixed hook plate 1 and the big tree branch, so that the vertical and transverse displacement of the half U-shaped water tank 2 is limited.

The U-shaped corner of the half U-shaped water tank 2 is arc-shaped, so that a 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 that the resonance frequency of the vibration damper is controlled, the frequency of the vibration damper can be consistent with the natural frequency of the branches of the big tree, and the optimal vibration damping effect is achieved; the water inlet is equipped with the spiral cover 4 of intaking of annular knurl handle, prevents the entering of foreign matter such as dust, worm to and shaking out or evaporating of liquid, the convenient water inlet of screwing and unscrewing of annular knurl design simultaneously.

As shown in fig. 4, the vibration dampers are installed on the windward side and the leeward side of the branches of the big tree in pairs, and the big tree is repeatedly shaken until the big tree cannot be supported by the big tree and is blown down instead of being directly blown down in most cases, so that the vibration dampers are installed on the windward side and the leeward side of the big tree in pairs to play a balance role.

Claims

1. A suspended half U-shaped TLD damping device comprising: half U type water tank (2), fixing device, characterized in that, fixing device includes fixed pull ring, fixed rope, fixed pull ring with half U type water tank (2) are connected, fixed rope respectively with fixed pull ring with by damping structure connection.

2. A suspended half U-shaped TLD damping device according to claim 1, wherein said fixing pull ring comprises an upper fixing pull ring (5) and a lower fixing pull ring (3), said upper fixing pull ring (5) is connected with the rear end of said half U-shaped water tank (2), and said lower fixing pull ring (3) is connected with the front end of said half U-shaped water tank (2).

3. A suspended half U-shaped TLD damping device according to claim 1, characterized in that the fixing device comprises a fixing hook plate (1), a fixing band, the fixing hook plate (1) is connected with the half U-shaped water tank (2), the fixing band is bound around the damped structure, the fixing hook plate (1) is inserted between the fixing band and the damped structure.

4. A suspended half U-shaped TLD damping device according to claim 3, characterized in that the groove of the fixing hook plate (1) is arc-shaped.

5. A suspended half U-shaped TLD damping device according to claim 3, characterized in that the contact surface of the fixing hook plate (1) and the damped structure is arc-shaped.

6. A suspended half U-shaped TLD damping device according to claim 1, characterized in that the U-shaped corners of the half U-shaped tank (2) are rounded.

7. A suspended half U-shaped TLD damping device according to claim 1, characterized in that the half U-shaped tank (2) has an opening at its end.

8. A suspended half U-shaped TLD vibration isolator as claimed in claim 7, wherein said opening is provided with a hole cover.

9. A suspended half U-type TLD damping device as claimed in any one of claims 1 to 7, wherein said damping device is installed in pairs on the force-receiving side and on the side facing away from said force-receiving side of said structure to be damped.