CN110541492B - Collision gap self-coordination device - Google Patents
Collision gap self-coordination device Download PDFInfo
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- CN110541492B CN110541492B CN201910738243.8A CN201910738243A CN110541492B CN 110541492 B CN110541492 B CN 110541492B CN 201910738243 A CN201910738243 A CN 201910738243A CN 110541492 B CN110541492 B CN 110541492B
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- 230000000903 blocking effect Effects 0.000 claims description 13
- 230000005284 excitation Effects 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 10
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000013016 damping Methods 0.000 description 7
- 230000009467 reduction Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
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- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
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- 238000012423 maintenance Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/023—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising rolling elements, e.g. balls, pins
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to a collision clearance self-coordination device, comprising: a fixed chassis; the upper end of the fixed rod piece is fixed at the lower end of the fixed chassis, and the fixed rod piece is provided with a return spring; a reset slide block, which is sleeved on the fixed rod piece and is connected with the upper part of the reset spring; the lower end of the limiting plate is hinged with one end of each supporting member, and the other end of each supporting member is hinged on the reset sliding block; and one end of the movable edge plate is connected with the limiting plate in a sliding manner, and the other end of the movable edge plate is hinged with the fixed chassis. The device realizes the self-adjustment of the optimal collision clearance of the damper under different excitations, has the characteristics of excitation strength self-adaptation, wide vibration attenuation frequency band and robustness, and realizes the self-adaptation adjustment of the collision clearance according to the size of the excitation load, thereby reducing the undesirable vibration of the structure in the horizontal direction and greatly improving the vibration attenuation effect.
Description
Technical Field
The invention belongs to the field of vibration control of civil engineering structures, and particularly relates to a collision clearance self-coordination device.
Background
With the rapid development of social economy, the building structure is increasingly large in size, and the building structure continuously extends from a high-rise building to a super high-rise building. Meanwhile, threats such as earthquake action and wind load to high-rise buildings are increasing day by day. In recent years, in the past major earthquake and wind disaster, the accident of collapse and damage of the structure occurs, and the economic loss is difficult to estimate. Therefore, the development and application of structural damping techniques are inevitable trends.
The passive control technology has the characteristics of maturity, high cost performance, high reliability and easiness in maintenance, and is widely applied to structural vibration reduction. Among them, collision damper and suspended mass pendulum damper are two kinds of common damping control devices, and practice tests find that there are many obvious defects: 1) the collision damper has overlarge mass and has adverse effect on the main body structure; 2) the noise pollution problem exists in the collision process; 3) the single tuning function of the suspended mass pendulum damper lacks an energy dissipation mechanism; 4) the single tuning device has extremely high requirements on the accuracy of the control frequency and narrow vibration reduction frequency band.
At present, in the collision process of a collision damper, the collision clearance can not be adjusted in a self-adaptive mode, and the self-coordination function of the collision clearance can not be realized according to the size of an excitation load, so that the poor vibration of the structure in the horizontal direction can not be effectively reduced.
Disclosure of Invention
The invention aims to solve the problems and provide a collision gap self-coordination device which is used for realizing self-adaptive adjustment of a collision gap of a collision damper according to the size of an excitation load during collision so as to reduce the undesirable vibration of a structure in the horizontal direction and improve the vibration reduction effect.
The purpose of the invention is realized by the following technical scheme:
a collision gap self-coordination apparatus, comprising:
a fixed chassis;
the upper end of the fixed rod piece is fixed at the lower end of the fixed chassis, and the fixed rod piece is provided with a return spring;
the reset sliding block is sleeved on the fixed rod piece and connected to the upper part of the reset spring;
the fixed chassis is positioned at the bottom of the collision chamber, the lower end of the limiting plate is hinged with one end of each of the plurality of supporting members, and the other end of each of the supporting members is hinged to the reset sliding block; and
and one end of the movable edge plate is connected with the limiting plate in a sliding manner, and the other end of the movable edge plate is hinged with the fixed chassis.
Furthermore, the middle part of the supporting member is also provided with a conversion rod piece, one end of the conversion rod piece is hinged with the middle part of the supporting member, and the other end of the conversion rod piece is hinged with the fixed chassis.
Furthermore, the fixed rod piece is also provided with a blocking piece at the upper part of the sliding block, and the blocking piece consists of a plurality of bulges with different heights and an end blocking plate.
Further, the lower part of limiting plate is equipped with the slide rail, the tip of activity edge board is equipped with the pulley, the pulley is followed the slide rail slides from top to bottom.
Further, the movable edge panel is made of a soft rubber coil providing deformability.
Further, the fixed chassis is circular.
Furthermore, the limiting plates are arc-shaped plates, the arc-shaped plates are connected through at least one elastic connecting piece, and the limiting plates surround a cylindrical collision chamber.
Further, the movable edge plate is fan-shaped.
Furthermore, the limiting plate and the movable edge plate are provided with 4 blocks.
Further, the diameter of the fixed chassis is 1/3-2/3 of the diameter of the cylindrical collision chamber.
The specific working principle of the device is that the collision damper (such as a damping ball) collides with a collision cavity of the device, the initial collision gap cannot obtain the optimal collision effect, along with the increase of the collision force, the collision limiting plate expands outwards, the movable edge plate moves downwards along the slide rail, the supporting component rotates around the change rod piece, and meanwhile, the reset slider moves upwards, when the excitation is larger, the collision gap becomes larger, the damper plays the best vibration damping effect, when the excitation gradually decreases, the reset slider gradually recovers to the original position under the action of the pull force of the reset spring, the collision gap becomes smaller, the self-coordination function of the collision gap can be realized according to the size of the excitation load, the undesirable vibration of the structure in the horizontal direction is effectively reduced, and the adjustment of the optimal collision gap of the damper under different earthquake strengths and wind load strengths can be realized.
Compared with the prior art, the collision clearance self-coordination unit provided by the invention realizes self-adjustment of the optimal collision clearance of the damper under different excitations, has the characteristic of excitation strength self-adaption, and has wide damping frequency band and robustness; the self-adaptive adjustment of the collision clearance is realized according to the size of the excitation load, so that the undesirable vibration of the structure in the horizontal direction is reduced, and the vibration reduction effect is greatly improved.
Drawings
FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line C-C of FIG. 1;
FIG. 3 is a schematic connection diagram of a limiting plate;
in the figure: 2-1-limiting plate, 2-2-fixed chassis, 2-3-fan-shaped movable edge plate, 2-4-reset slide block, 2-5-supporting member, 2-6-conversion rod piece, 2-7-reset spring, 2-8-fixed rod piece and 2-9-blocking piece.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
A collision clearance self-coordination device is shown in figures 1 and 2 and comprises a limit plate 2-1, a fixed chassis 2-2, a fan-shaped movable edge plate 2-3, a reset sliding block 2-4, a support member 2-5, a conversion rod piece 2-6, a reset spring 2-7, a fixed rod piece 2-8 and a blocking piece 2-9.
The limiting plates 2-1 surround a collision area, the limiting plates 2-1 are arc vertical plates, the embodiment is characterized in that 4 limiting plates 2-1 are arranged to form a cylindrical structure, as shown in figure 3, two adjacent limiting plates 2-1 are flexibly connected through an upper spring, a middle spring and a lower spring, the lower end of each limiting plate is connected with a reset slider 2-4 through a supporting member 2-5, the reset sliders 2-4 are nested on a fixed rod 2-8, the lower ends of the reset sliders are provided with reset springs 2-7, the upper parts of the fixed rod are provided with blocking members 2-9, the middle positions of the supporting members 2-5 are provided with steering plates, the steering plates are connected with a fixed chassis 2-2 through a conversion rod 2-6, slide rails are arranged inside the limiting plates, and the fan-shaped movable edge plates 2-3 mainly, the fan-shaped movable edge plate 2-3 is composed of four parts and is matched with the limiting plate for use, the fan-shaped movable edge plate 2-3 is made of soft rubber coiled materials, when the limiting plate 2-1 expands outwards due to impact, the soft rubber coiled materials can provide enough deformability, and are connected with the fixed chassis 2-2 and are unfolded smoothly. The support members 2-5 and the conversion rod pieces 2-6 form a rotating mechanism, which is similar to an expansion mechanism of an umbrella, is flexible and quick and mainly ensures that the damper realizes the excitation intensity self-adapting function.
In this embodiment, the blocking members 2-9 are disposed on the fixed rod members 2-8, and mainly comprise protrusions with different heights and end blocking plates, so as to provide damping force for the reset slider under different excitation strengths, and the reset slider 2-4 can slide up and down along the fixed rod members 2-8 and is blocked by the reset springs 2-7 and the blocking members 2-9.
During specific use, install the device in collision damper lower part, arouse controlled structure vibration in vertical and horizontal direction under earthquake and wind load effect, the attenuator performance is inhaled the energy consumption effect of shaking this moment, specifically is:
along with the increase of the collision force, a collision damper (such as a damping ball) impacts the limiting plate 2-1 to expand outwards, the fan-shaped movable edge plate 2-3 moves downwards along the sliding rail, the supporting member 2-5 rotates around the conversion rod piece 2-6, and simultaneously drives the reset sliding block 2-4 to move upwards, when the excitation is large, the collision gap is enlarged, the damper plays the best vibration reduction effect, when the excitation is gradually reduced, the reset sliding block is gradually restored to the original position under the tension of the reset spring 2-7 and the blocking effect of the blocking piece 2-9, the collision gap is reduced, the self-coordination function of the collision gap is realized according to the excitation load, and therefore the undesirable vibration of the structure in the horizontal direction is effectively reduced.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. A collision gap self-coordination apparatus, comprising:
a fixed chassis;
the upper end of the fixed rod piece is fixed at the lower end of the fixed chassis, and the fixed rod piece is provided with a return spring;
the reset sliding block is sleeved on the fixed rod piece and connected to the upper part of the reset spring;
the fixed chassis is positioned at the bottom of the collision chamber, the lower end of the limiting plate is hinged with one end of each of the plurality of supporting members, and the other end of each of the supporting members is hinged to the reset sliding block; and
and one end of the movable edge plate is connected with the limiting plate in a sliding manner, and the other end of the movable edge plate is hinged with the fixed chassis.
2. The self-coordination device for collision clearance according to claim 1, wherein a switching rod is further provided at the middle part of the support member, one end of the switching rod is hinged with the middle part of the support member, and the other end is hinged with the fixed chassis.
3. The self-coordination device for collision clearance according to claim 1, wherein said fixed rod member further comprises a blocking member at an upper portion of said reset slider, said blocking member is composed of a plurality of protrusions with different heights and an end blocking plate.
4. The collision gap self-coordination device according to claim 1, wherein a slide rail is provided at the lower part of said limit plate, and a pulley is provided at the end of said movable edge plate, said pulley sliding up and down along said slide rail.
5. A collision gap self-tuning device according to claim 1, wherein the movable edge plate is made of a soft rubber coil providing deformability.
6. A collision gap self-tuning device according to claim 1, wherein the fixed chassis is circular.
7. The collision gap self-coordination device according to claim 6, wherein said limiting plates are arc-shaped plates, and are connected by at least one elastic connecting member, and said limiting plates define a cylindrical collision chamber.
8. The collision gap self-tuning device of claim 7, wherein the movable edge plate is fan-shaped.
9. The collision gap self-coordination device according to claim 8, wherein said limiting plate and said movable edge plate are provided with 4 pieces.
10. The self-tuning device of claim 7 wherein the diameter of the stationary base plate is 1/3-2/3 of the diameter of the cylindrical collision chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910738243.8A CN110541492B (en) | 2019-08-12 | 2019-08-12 | Collision gap self-coordination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910738243.8A CN110541492B (en) | 2019-08-12 | 2019-08-12 | Collision gap self-coordination device |
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| Publication Number | Publication Date |
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| CN110541492A CN110541492A (en) | 2019-12-06 |
| CN110541492B true CN110541492B (en) | 2020-08-18 |
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| CN201910738243.8A Expired - Fee Related CN110541492B (en) | 2019-08-12 | 2019-08-12 | Collision gap self-coordination device |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11351316A (en) * | 1998-06-10 | 1999-12-24 | Asahi Chem Ind Co Ltd | Pendulum-type vibration control device for building |
| CN103541460B (en) * | 2013-11-08 | 2016-01-20 | 同济大学 | Novel tuning granular mass damper |
| CN104763070B (en) * | 2015-04-14 | 2016-11-30 | 山东大学 | Suspension multidimensional collisional quenching antivibrator |
| CN205934603U (en) * | 2016-07-28 | 2017-02-08 | 钧玖（深圳）科技有限公司 | Vertical vibration damper with canceling release mechanical system |
| CN107419816B (en) * | 2017-08-16 | 2023-06-23 | 山东大学 | Vibration damper for controlling three-dimensional translation and torsion direction thereof |
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Granted publication date: 20200818 |