CN103453063B - Nested collision damper - Google Patents
Nested collision damper Download PDFInfo
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- CN103453063B CN103453063B CN201210508920.5A CN201210508920A CN103453063B CN 103453063 B CN103453063 B CN 103453063B CN 201210508920 A CN201210508920 A CN 201210508920A CN 103453063 B CN103453063 B CN 103453063B
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Abstract
The invention provides a nested collision damper. The nested collision damper has the advantages that energy dissipation modes are various, and after friction layers are added into the nested collision damper on the basis that the original energy dissipation mode is kept, a friction energy dissipation mode becomes a main energy dissipation mode; impact on a system in a collision procedure can be effectively reduced while the momentum exchange and energy dissipated by collision cannot be reduced; energy of the system can be dissipated by collision which occurs on each layer of the nested particle collision damper, the quantity of nested layers can be freely increased or decreased according to the size and the shape of an actual structure, and accordingly the damper can be widely applied to various places, is convenient to install and simple in structure and can adapt to complicated working environments.
Description
Technical field
The invention belongs to shake control technical field, be specifically related to a kind of there is multiple power consumption mode can nesting type impact damper.
Background technique
There is the damper to increase the permanent dissipates vibration structural energy of energy-dissipating device outward in mechanical structure in the middle of last century.From then on this Passive Control damper with outside power consumption becomes the focus of research.Impact damper and granule damper are just the Passive Control damper of typical outside power consumption.
Impact damper have passed through the development of more than ten years, applies very extensive.But traditional collisional damping is based upon on the basis of momentum transfer, in collision process, only have the energy of minority to be dissipated, most of energy is still propagated in main system, and can produce impact to main system and produce a large amount of noises.The plastic deformation that granule damper mainly causes with the mutual collision between particle is even ruptured and is forever consumed main system energy, have good vibration damping, vibration isolation and shock proof overall characteristic, vibration damping Bandwidth, overall characteristic be not substantially by the impact of environmental conditions.But its power consumption mode is single, and internal motion rule is complicated.Afterwards, what people proposed was filled in impact damper by fine particle, and the buffering of using particle is avoided impacting and noise, and the impactor in addition in collisional damping also can impact particle increases plastic deformation, thus increases the plastic deformation energy dissipation of particle.Collisional damping with filler particles has been made significant headway in the development of this type of damper.
But, the consumption mechanism of this damper is still mainly limited to and impacts power consumption and plastic deformation energy dissipation, the motion of friction energy-dissipating mainly between particle, mainly point cantact again between particle and particle, friction is also insufficient, so friction energy-dissipating is not fully utilized, the vibration damping effect for low frequency is not good, still can impact main system.Need carry out specialized designs according to mechanism's actual conditions for different mechanisms, versatility does not wait major defect by force.
Summary of the invention
For solving the problem, the utility model have employed following technological scheme: for many defects of existing damper, the present invention propose a kind of can the impact damper of nesting type.
Provided by the invention a kind of with can the impact damper of nesting type, comprising: impactor, hold the accommodating part of described impactor, and hold the nested cell of described accommodation section;
Wherein, described nested cell has: the nested upper cover of at least one, the nested lower cover equal with described nested upper cover number, and equal with described nested upper cover number be positioned at nested upper cover friction layer inside described nested upper cover and the nested lower cover friction layer that be positioned at described nested lower cover inside equal with described nested lower cover number, described nested upper cover adopts with described nested lower cover and is threaded
Described accommodation section has, accommodating part upper cover, accommodating part lower cover, and is positioned at accommodating part upper cover friction layer outside the upper cover of accommodating part and is positioned at the accommodating part lower cover friction layer outside the lower cover of accommodating part, and described accommodation section upper cover adopts with described accommodation section lower cover and is threaded,
Wherein, described nested upper cover and described nested lower cover are the curved surface of outer surface all projection, and described nested upper cover is also protruding curved surface with the upper bottom surface of described nested lower cover institute internal surface.
Further, impact damper provided by the invention can also have such feature: wherein, in described nested cell and accommodating part, be filled with metal granule.
Model utility effect and effect
In sum, nesting type particles-impact damper provided by the invention, it is characterized in that shape by changing impactor and increase friction coatings change face in the power consumption mode of point cantact contact original, increase forced contact area and friction factor and positive pressure, make friction energy-dissipating also be incorporated as main power consumption mode.Originally main impact and these two kinds of modes of plastic deformation of relying on consume energy, and friction energy-dissipating is not fully utilized.The present invention is improved to impact, plastic deformation and friction three kinds of major ways power consumptions.And after adding friction energy-dissipating by the shape changing impactor, effectively slow down the impact of single-impact on system, can friction layer be changed in use for some time, to ensure the working life of damper.
This nesting type particles-impact damper can also according to the size of the situation of reality by nested change damper, shape, cushioning ability etc., and can produce the granule damper of different size in batches, only need carry out assembling in the application of reality, it is easy for installation, structure is simple, use flexibly, adapt to complicated working environment, various occasion can be widely used in.
Accompanying drawing explanation
Fig. 1 be the present invention relates to can nesting type impact damper structural representation in an embodiment;
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.It should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.
Embodiment
Fig. 1 be the present invention relates to can nesting type impact damper structural representation in an embodiment.
As shown in Figure 1, one in the present embodiment can mainly comprise by nesting type impact damper: crude shock steel ball; The upper and lower covers of each nesting level; Friction layer; Filler particles.
First layer impactor [3] directly can select the steel ball of 10mm, the car of end cap up and down of accommodating part is gone out screw thread, makes be threaded [2] of upper and lower end cap.In accommodating part filling metallic particles for overlay or other be easy to produce the powder of plastic deformation, its particle diameter is about 0.1mm, and fill factor is 40%.Outside in upper bottom surface is processed as arc, to increase plastic deformation.After installing, paste or full-filling friction layer in outside, shaggy friction plate or coating can be selected.Use a period of time, friction layer weares and teares, and again can paste one deck, namely can repeatedly use.Second layer container can within it be pasted or full-filling friction layer by layer, then one deck container is arranged on wherein as impactor, and powder filler.When reality uses, and can need to increase or reduce the number of plies according to the situation of reality.After the size determining damper and the number of plies, mounting groove can be added as required on the device of damping or the mounting parts required for damper external welding is installed.
The end face of impactor and bottom surface are the curved surface of inner and outer surface all projection, can produce resiliently deformable like this, increase the consumption of energy, and can shorten time of collision, the efficiency improving energy interchange and the energy consumed in collision process when impacting because of collision.
This friction layer that can add in the inside and outside wall of container of nesting type particles-impact damper, it can be made to rub to greatest extent in movement process, and effectively reduce the impact to system in collision process, but momentum transfer can not be reduced and collide the energy consumed.Friction layer can be changed in use for some time, to ensure the working life of damper.
The effect of embodiment and effect
The present invention discloses a kind of nesting type particles-impact damper.It is characterized in that shape by changing impactor and increase friction coatings change face in the power consumption mode of point cantact contact original, strengthen forced contact area, friction factor and positive pressure, be also introduced as main power consumption mode, add power consumption mode by friction energy-dissipating.The impact damper of nested structure effectively can disperse the intensity of single-impact, reduces impactor to the impact of system, and the collision of every one deck simultaneously can consume system capacity.And the present invention can freely add according to actual needs or reduce the nested number of plies, and it is easy for installation, structure is simple, uses flexibly, makes this damper can be widely used in various occasion, is particularly useful for adapting to complicated working environment.
In sum, the present invention adds friction energy-dissipating in traditional impact damper, and the energy dissipation mode adding system slow down its impact to system.Have employed nested mode and carry out combination of dampings device, the size of damper can be changed according to the actual needs, increase energy dissipation, save space, can produce in batches after determining different model.Be designed to arc at columniform impactor end face, in impactor impact process, impactor can produce plastic deformation and reduce time of collision, slows down the impact to system.Damper is easy for installation, adapts to complicated working environment, damping Bandwidth, little to the impact of system, good reliability, and can repeatedly use upon wear, the advantages such as Economy is strong.
Claims (2)
1. can the impact damper of nesting type, it is characterized in that, comprising:
Impactor, holds the accommodating part of described impactor, and holds the nested cell of described accommodation section;
Wherein, described nested cell has: the nested upper cover of at least one, the nested lower cover equal with described nested upper cover number, and equal with described nested upper cover number be positioned at nested upper cover friction layer inside described nested upper cover and the nested lower cover friction layer that be positioned at described nested lower cover inside equal with described nested lower cover number, described nested upper cover adopts with described nested lower cover and is threaded
Described accommodation section has, accommodating part upper cover, accommodating part lower cover, and is positioned at accommodating part upper cover friction layer outside the upper cover of accommodating part and is positioned at the accommodating part lower cover friction layer outside the lower cover of accommodating part, and described accommodation section upper cover adopts with described accommodation section lower cover and is threaded,
Wherein, described nested upper cover and described nested lower cover are all protruding curved surface of outer surface, and described nested upper cover and the upper bottom surface of described nested lower cover institute internal surface are also the curved surface of projection.
2. according to claim 1 can the impact damper of nesting type, it is characterized in that:
Wherein, in described nested cell and accommodating part, metal granule is filled with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210508920.5A CN103453063B (en) | 2012-12-03 | 2012-12-03 | Nested collision damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210508920.5A CN103453063B (en) | 2012-12-03 | 2012-12-03 | Nested collision damper |
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| Publication Number | Publication Date |
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| CN103453063A CN103453063A (en) | 2013-12-18 |
| CN103453063B true CN103453063B (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210508920.5A Expired - Fee Related CN103453063B (en) | 2012-12-03 | 2012-12-03 | Nested collision damper |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221620A (en) * | 2015-10-12 | 2016-01-06 | 上海理工大学 | Electromagnetic type flutter impact damper |
| CN109404460B (en) * | 2018-12-06 | 2020-08-04 | 陕西理工大学 | Combined laminated friction damping vibration absorber under magnetic constraint |
| CN114542640B (en) * | 2020-11-24 | 2024-04-05 | 中国航发商用航空发动机有限责任公司 | Damping vibration attenuation device and aeroengine |
| CN114542641B (en) * | 2020-11-24 | 2024-04-05 | 中国航发商用航空发动机有限责任公司 | Damping vibration attenuation device and aeroengine |
| CN112780714B (en) * | 2020-12-25 | 2021-12-10 | 清华大学 | Protective device for regulating impact load impulse |
| CN114060444B (en) * | 2021-12-02 | 2023-05-30 | 中国人民解放军军事科学院国防科技创新研究院 | Friction-induced bistable buffer energy-absorbing unit and multistable buffer energy-absorbing structure |
Citations (5)
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|---|---|---|---|---|
| CN1525081A (en) * | 2003-02-25 | 2004-09-01 | 上海理工大学 | Collision damper with lubricating particles |
| CN101520077A (en) * | 2007-07-20 | 2009-09-02 | 通用汽车环球科技运作公司 | Damped product |
| CN202418383U (en) * | 2011-12-14 | 2012-09-05 | 上海理工大学 | Cylindrical particle collision damper |
| CN102672217A (en) * | 2012-05-24 | 2012-09-19 | 山东大学 | Coating damping cutter rod and damping testing method thereof |
| CN202493626U (en) * | 2012-03-05 | 2012-10-17 | 北京工业大学 | Nested particle damper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001208130A (en) * | 2000-01-31 | 2001-08-03 | Atsuyoshi Mantani | Base isolation support device with friction material storing tank |
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2012
- 2012-12-03 CN CN201210508920.5A patent/CN103453063B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1525081A (en) * | 2003-02-25 | 2004-09-01 | 上海理工大学 | Collision damper with lubricating particles |
| CN101520077A (en) * | 2007-07-20 | 2009-09-02 | 通用汽车环球科技运作公司 | Damped product |
| CN202418383U (en) * | 2011-12-14 | 2012-09-05 | 上海理工大学 | Cylindrical particle collision damper |
| CN202493626U (en) * | 2012-03-05 | 2012-10-17 | 北京工业大学 | Nested particle damper |
| CN102672217A (en) * | 2012-05-24 | 2012-09-19 | 山东大学 | Coating damping cutter rod and damping testing method thereof |
Non-Patent Citations (1)
| Title |
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| 阻尼器结构组成对碰撞阻尼性能的影响;杜妍辰等;《中国粉体技术》;20120225;第18卷(第1期);54-56、71 * |
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| CN103453063A (en) | 2013-12-18 |
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Inventor after: Du Yanchen Inventor after: Liu Zhe Inventor after: Wu Xiaole Inventor after: Zhou Yanyu Inventor after: Ge Jingjing Inventor after: Zhang Hong Inventor after: Qin Jing Inventor after: Gao Lei Inventor before: Du Yanchen Inventor before: Liu Zhe Inventor before: Wu Xiaole Inventor before: Zhou Yanyu |
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Free format text: CORRECT: INVENTOR; FROM: DU YANCHEN LIU ZHE WU XIAOLE ZHOU YANYU TO: DU YANCHEN LIU ZHE WU XIAOLE ZHOU YANYU GE JINGJING ZHANG HONG QIN JING GAO LEI |
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