CN203222903U - Variable rigidity friction damper - Google Patents
Variable rigidity friction damper Download PDFInfo
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- CN203222903U CN203222903U CN 201320182322 CN201320182322U CN203222903U CN 203222903 U CN203222903 U CN 203222903U CN 201320182322 CN201320182322 CN 201320182322 CN 201320182322 U CN201320182322 U CN 201320182322U CN 203222903 U CN203222903 U CN 203222903U
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Abstract
The utility model relates to a variable rigidity friction damper which comprises a sleeve (1), a stepped shaft and a friction ring (2). The stepped shaft comprises a first sliding part (3) and a second sliding part (4), wherein the diameter of the first sliding part (3) is smaller than that of the second sliding part (4) which is located inside the sleeve (1), and the first sliding part (3) stretches out of the sleeve (1). A first spring (5) and a second spring (6) are arranged at the two ends inside the sleeve (1) respectively, the first spring (5) is sleeved on the outer side of the first sliding part (3), the first spring (5) and the second spring (6) are arranged on two sides of the second sliding part (4) respectively, the friction ring (2) is fixed on the second sliding part (4), and the friction ring (2) is contacted with the inner wall of the sleeve (1). The variable rigidity friction damper can achieve the friction energy-consumption damping effect, can also provide additional rigidity for the structure during large deformation, prevents the structure from producing large plastic deformation, and can reduce remnant deformation of the main structure.
Description
Technical field
The utility model relates to damper, more particularly, relates to a kind of change rigidity frcition damper.
Background technology
The frcition damper that is used for structural vibration control produces frictional force and the dissipates vibration energy by the relative slip between one or more pairs of rubbing surfaces, reaches the purpose of dynamic responses such as reducing displacement structure or acceleration.Before the rubbing surface generation slippage, the initial stiffness of frcition damper is bigger, and after producing slippage, frictional force generally remains constant, and namely its force-displacement relationship hysteresis loop is generally rectangle.
Do the time spent when structure suffers small earthquakes, can provide frictional damping by frcition damper is installed, can reduce structure acceleration and displacement.Under small earthquakes, if to the additional excessive rigidity of structure, may cause the rising of acceleration response, and cause that the structure interlaminar shear rises, and then cause the destruction of the relevant equipment of indoor acceleration.
When suffering violent earthquake, structure does the time spent, surrender may take place and cause the structural system integral rigidity to reduce in agent structure, structure relative storey displacement this moment is responsive to rigidity, and structural entity rigidity is crossed to hang down and may be caused excessive relative storey displacement, causes failure modes such as deck destruction then.
Be structure when suffering small earthquakes and violent earthquake, different control targets arranged, thereby additional damping and additional stiffness are had different demands that existing damper can't satisfy this demand.
The utility model content
The technical problems to be solved in the utility model is, a kind of frictional damping power consumption that provides when small deformation is provided, and the change rigidity frcition damper of additional stiffness can also be provided when large deformation.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of change rigidity frcition damper, comprise sleeve, multidiameter and drag ring, described multidiameter comprises first sliding part and second sliding part, the diameter of described first sliding part is less than the diameter of second sliding part, described second sliding position is in described sleeve inner, and described first sliding part stretches out described sleeve; The two ends of described sleeve inner are provided with first spring and second spring, described first spring housing is in described first sliding part outside, described first spring and the second spring branch are located at the both sides of described second sliding part, described drag ring is fixed on described second sliding part, and described drag ring contacts with the inwall of described sleeve.
In change rigidity frcition damper described in the utility model, described drag ring and described sleeve interference fit.
In change rigidity frcition damper described in the utility model, the two ends of described second sliding part are provided with rubber pad.
Implement change rigidity frcition damper of the present utility model, have following beneficial effect:
1, drag ring motion vertically in sleeve, the contact surface of drag ring and sleeve produces frictional force, is used for the dissipates vibration energy.When large deformation took place, the second sliding part displacement was bigger, and second sliding part contacts with first spring or second spring, and first spring or second spring produce the axial elasticity restoring force, and this moment, the power of frcition damper was making a concerted effort of frictional force and elastic force.The utility model can also provide additional stiffness to structure when large deformation when the friction energy-dissipating cushioning effect is provided, prevent that the structural plasticity distortion is excessive, also can reduce the permanent set of agent structure.
2, the additional stiffness of the utility model damper only starts when large deformation, and the excessive geological process power that causes of the rigidity of structure increases when avoiding medium and small shake.
3, the utility model damper structure is simple, and is easy to make, practical economical.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation that the utility model becomes the rigidity frcition damper;
Fig. 2 is the I-I sectional view among Fig. 1;
Fig. 3 is the hysteresis loop that becomes the rigidity frcition damper.
The specific embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast accompanying drawing and describe the specific embodiment of the present utility model in detail.
As shown in Figure 1 and Figure 2, the utility model change rigidity frcition damper comprises sleeve 1, multidiameter, first spring 5, second spring 6 and drag ring 2.
Sleeve 1 is hollow cylinder, and multidiameter can slide in sleeve 1.Multidiameter comprises that further the diameter of first sliding part 3 and second sliding part, 4, the first sliding parts 3 is less than the diameter of second sliding part 4.Second sliding part 4 is positioned at sleeve 1 inside, and first sliding part 3 stretches out sleeve 1.
The inside of sleeve 1 is provided with the two ends that first spring 5 and second spring, 6, the first springs 5 and second spring 6 are separately fixed at sleeve 1, fixes by welding manner in the present embodiment.First spring 5 is enclosed within first sliding part, 3 outsides, first spring 5 and second spring were located at the both sides of second sliding part 4 in 6 minutes, when the displacement of multidiameter was big, second sliding part 4 contacted with first spring 5 or second spring 6, and first spring 5 or second spring 6 are compressed.The initial distance of first spring 5 and second spring 6 and second sliding part, 4 end faces is set according to the structure design needs.First sliding part 3 passes in the middle of first spring 5, and sleeve 1, drag ring 2, first sliding part 3, second sliding part 4, first spring 5 and second spring, 6 axis are consistent.
Further, the two ends of second sliding part 4 are provided with rubber pad 7, and rubber pad 7 sticks on the surface of second sliding part 4 in the present embodiment.Collision noise in the time of can reducing second sliding part 4 and contact with second spring 6 with first spring 5 by rubber pad 7 is set.
Frictional damping hysteresis loop when the utility model can provide little displacement, the hysteresis loop of making a concerted effort of friction damping force and elastic force when big displacement is provided.The hysteresis loop that Fig. 3 is present embodiment when big displacement, F is axial force, u is displacement.
By reference to the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, also can make a lot of forms, these all belong within the protection of the present utility model.
Claims (3)
1. one kind becomes the rigidity frcition damper, it is characterized in that, comprise sleeve (1), multidiameter and drag ring (2), described multidiameter comprises first sliding part (3) and second sliding part (4), the diameter of described first sliding part (3) is less than the diameter of second sliding part (4), described second sliding part (4) is positioned at described sleeve (1) inside, and described first sliding part (3) stretches out described sleeve (1); The inner two ends of described sleeve (1) are provided with first spring (5) and second spring (6), described first spring (5) is enclosed within described first sliding part (3) outside, described first spring (5) and second spring (6) divide the both sides that are located at described second sliding part (4), described drag ring (2) is fixed on described second sliding part (4), and described drag ring (2) contacts with the inwall of described sleeve (1).
2. change rigidity frcition damper according to claim 1 is characterized in that, described drag ring (2) and described sleeve (1) interference fit.
3. change rigidity frcition damper according to claim 1 is characterized in that, the two ends of described second sliding part (4) are provided with rubber pad (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320182322 CN203222903U (en) | 2013-04-12 | 2013-04-12 | Variable rigidity friction damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320182322 CN203222903U (en) | 2013-04-12 | 2013-04-12 | Variable rigidity friction damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203222903U true CN203222903U (en) | 2013-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320182322 Expired - Fee Related CN203222903U (en) | 2013-04-12 | 2013-04-12 | Variable rigidity friction damper |
Country Status (1)
| Country | Link |
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| CN (1) | CN203222903U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669639A (en) * | 2013-12-31 | 2014-03-26 | 长沙理工大学 | Energy storage shock-absorbing device |
| CN105507439A (en) * | 2015-11-24 | 2016-04-20 | 北京工业大学 | Piston type compressed spring filled self-reset energy dissipation support |
| CN106906912A (en) * | 2017-04-25 | 2017-06-30 | 沈阳建筑大学 | A kind of spacing bearing that consumes energy stage by stage |
| CN106996433A (en) * | 2017-04-24 | 2017-08-01 | 东南大学 | A kind of frictional bidirectional tuning mass damper |
| CN107023210A (en) * | 2017-05-26 | 2017-08-08 | 太原恒晋减震科技有限公司 | Build shock-damping energy-dissipating and reset damper |
| CN108118797A (en) * | 2017-12-19 | 2018-06-05 | 华侨大学 | A kind of variation rigidity multistage friction compound action damper |
| CN109725498A (en) * | 2017-10-31 | 2019-05-07 | 上海微电子装备（集团）股份有限公司 | Balance quality device and lithography system |
| CN109869429A (en) * | 2017-12-01 | 2019-06-11 | 中国飞机强度研究所 | A kind of novel friction type shimmy-damper |
| CN112211943A (en) * | 2020-10-27 | 2021-01-12 | 常州大学 | Metal vibration isolator with additional damping force proportional to vibration displacement |
| CN112267374A (en) * | 2020-10-29 | 2021-01-26 | 南京工业职业技术大学 | Damping support for bridge construction |
| CN115217233A (en) * | 2022-07-27 | 2022-10-21 | 金耀 | Friction energy dissipator |
-
2013
- 2013-04-12 CN CN 201320182322 patent/CN203222903U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669639B (en) * | 2013-12-31 | 2016-02-10 | 长沙理工大学 | A kind of energy storage damping device |
| CN103669639A (en) * | 2013-12-31 | 2014-03-26 | 长沙理工大学 | Energy storage shock-absorbing device |
| CN105507439B (en) * | 2015-11-24 | 2018-07-31 | 北京工业大学 | A kind of piston type filling compression spring Self-resetting energy dissipation brace |
| CN105507439A (en) * | 2015-11-24 | 2016-04-20 | 北京工业大学 | Piston type compressed spring filled self-reset energy dissipation support |
| CN106996433B (en) * | 2017-04-24 | 2019-02-12 | 东南大学 | A kind of frictional bidirectional tuning mass damper |
| CN106996433A (en) * | 2017-04-24 | 2017-08-01 | 东南大学 | A kind of frictional bidirectional tuning mass damper |
| CN106906912A (en) * | 2017-04-25 | 2017-06-30 | 沈阳建筑大学 | A kind of spacing bearing that consumes energy stage by stage |
| CN106906912B (en) * | 2017-04-25 | 2022-06-21 | 沈阳建筑大学 | Staged energy consumption limiting support |
| CN107023210A (en) * | 2017-05-26 | 2017-08-08 | 太原恒晋减震科技有限公司 | Build shock-damping energy-dissipating and reset damper |
| CN109725498A (en) * | 2017-10-31 | 2019-05-07 | 上海微电子装备（集团）股份有限公司 | Balance quality device and lithography system |
| CN109725498B (en) * | 2017-10-31 | 2020-11-27 | 上海微电子装备（集团）股份有限公司 | Balance mass device and photoetching system |
| CN109869429A (en) * | 2017-12-01 | 2019-06-11 | 中国飞机强度研究所 | A kind of novel friction type shimmy-damper |
| CN108118797A (en) * | 2017-12-19 | 2018-06-05 | 华侨大学 | A kind of variation rigidity multistage friction compound action damper |
| CN112211943A (en) * | 2020-10-27 | 2021-01-12 | 常州大学 | Metal vibration isolator with additional damping force proportional to vibration displacement |
| CN112267374A (en) * | 2020-10-29 | 2021-01-26 | 南京工业职业技术大学 | Damping support for bridge construction |
| CN115217233A (en) * | 2022-07-27 | 2022-10-21 | 金耀 | Friction energy dissipator |
| CN115217233B (en) * | 2022-07-27 | 2024-03-22 | 金耀 | Friction energy dissipation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20150412 |
|
| EXPY | Termination of patent right or utility model |