CN101012859A - Multi-modality broad-frequency tuning quality damper - Google Patents
Multi-modality broad-frequency tuning quality damper Download PDFInfo
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- CN101012859A CN101012859A CN 200710020066 CN200710020066A CN101012859A CN 101012859 A CN101012859 A CN 101012859A CN 200710020066 CN200710020066 CN 200710020066 CN 200710020066 A CN200710020066 A CN 200710020066A CN 101012859 A CN101012859 A CN 101012859A
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- viscoelastic damping
- elasitic layer
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Abstract
The invention discloses a multi-mode wide-frequency resonance quality damping device, comprising an elastic layer (6) and an adhesive damping unit (7) at the lower part of elastic layer (6). Two nearby adhesive damping units (7) are spaced. The invention utilizes the multimode character of continuous quality structure, that continuous structure has several resonance frequencies, to resolve the problem of too narrow control frequency band. Therefore, the invention can reduce vibration at wide frequency.
Description
Technical field
The present invention relates to a kind of damper, relate in particular to a kind of multi-modality broad-frequency tuning quality damper.
Background technique
Along with lathe at a high speed, the development of highi degree of accuracy direction, the vibration problem at machine tooling position becomes the key that influences machine tool accuracy and life-span.Because the difference of lathe self structure, the variation of machine spindle speed and tool feeding amount causes vibration to come across on the different frequencies.Traditional damping vibration attenuation technology mainly contains dual mode: the one, and damping is handled, and this structural type comprises damping layer 1, restraint layer 2, and mainly be thin-wall part by control structure 3 this moment, very little for slab and block structure effect; Another kind of mode is lumped mass tuned mass damper (Tuned Mass Damper-TMD), the damper of this kind form comprises tuning quality layer 4 and viscoelastic material layer 5, because its tuned frequency generally all is a unifrequency, therefore can only be at a narrower frequency range inner control vibration and noise.Because the monotony and the receptance of the vibration of TMD tuning structure, the vibration of control structure must design a plurality of TMD on the broad frequency.It is unpractiaca often on engineering at the working position of lathe a plurality of TMD to be installed, and the dynamic parameters that so many damper also can change original parts is installed.
Summary of the invention
The invention provides a kind of can be at controlled structural vibrations of wider frequency range inner control and multi-modality broad-frequency tuning quality damper simple in structure, simple for production.
The present invention adopts following technological scheme:
A kind of multi-modality broad-frequency tuning quality damper comprises elasitic layer and viscoelastic damping unit, and the viscoelastic damping unit is located at the bottom of elasitic layer, leaves the gap between adjacent two viscoelastic damping unit.
Compared with prior art, the present invention has the following advantages:
1, the present invention can be in the controlled structural vibrations of wider frequency range inner control.The present invention can be in the controlled structural vibrations of wider frequency range inner control, and practicability is very strong.This is that the elastic force that the result is transmitted by the lumped mass tuned mass damper becomes viscous force and acts on structure because the damping function of lumped mass tuned mass damper depends on lumped mass tuned mass damper response lag in structural response phase quadrature condition.This is a tuned mass damper damping energy dissipation maximum.This condition has only the frequency when the lumped mass tuned mass damper to be tuned to when structure controlled frequency and external excitation cover this frequency content just can to take place.The frequency of single-degree-of-freedom lumped mass tuned mass damper has only one, therefore can only be near this resonant frequency narrower frequency domain better damping, the present invention utilizes the multi-modal characteristic of continuous quality structure, be that continuous structure has several resonant frequencies, overcome the narrow problem of traditional tuned mass damper control frequency band, expand the width of control frequency band, strengthened practicability of the present invention.Therefore it can be in better damping on this several tuning frequency domain.So just reached the purpose of expanding the tuning frequency domain width of tuned mass damper.
2, the present invention is simple in structure, easy to make.Elasitic layer among the present invention can have been simplified structural type of the present invention for annular and beam shape, has made things convenient for making.
Description of drawings
Fig. 1 is the structural representation that damping is handled.
Fig. 2 is the lumped mass tuned mass damper.
Fig. 3 is the structural representation of the embodiment of the invention 1.
Fig. 4 is the left view of Fig. 3.
Fig. 5 is the structural representation of the embodiment of the invention 2.
Fig. 6 is the A-A sectional view of Fig. 5.
Fig. 7 installs before and after the present invention the effect contrast figure of structural vibration response.
Embodiment
Embodiment 1
A kind of multi-modality broad-frequency tuning quality damper, comprise elasitic layer 6 and viscoelastic damping unit 7, and viscoelastic damping unit 7 is located at the bottom of elasitic layer 6, leave the gap between adjacent two viscoelastic damping unit 7, the side of viscoelastic damping unit 7 is vertical with the bottom surface of elasitic layer 6, the Young's modulus of elasitic layer 6 is 8～220GPa, and viscoelastic damping unit 7 is organic silicon rubber or chlorobutyl rubber.
In the present embodiment, elasitic layer 6 is a wood (rift grain), and Young's modulus is 8～12GPa, and viscoelastic damping unit 7 is fluorine butyl rubbers.
Embodiment 2
A kind of multi-modality broad-frequency tuning quality damper, comprise elasitic layer 6 and viscoelastic damping unit 7, and viscoelastic damping unit 7 is located at the bottom of elasitic layer 6, leave the gap between adjacent two viscoelastic damping unit 7, the Young's modulus of elasitic layer 6 is 8～220GPa, viscoelastic damping unit 7 is organic silicon rubber or chlorobutyl rubber, elasitic layer 6 is an annular, and the side of viscoelastic damping unit 7 is vertical with the tangent plane of the elasitic layer 6 at its place, place, the side and the elasitic layer 6 that are viscoelastic damping unit 7 form an intersection, can make a tangent plane of elasitic layer 6 by this intersection, the side of viscoelastic damping unit 7 is just vertical with this tangent plane at this moment, and the bottom surface indent of viscoelastic damping unit 7, and a common cylndrical surface.
In the present embodiment, elasitic layer 6 is plumbous, and Young's modulus is 15～18GPa, and viscoelastic damping unit 7 is organic silicon rubbers.
Embodiment 3
A kind of multi-modality broad-frequency tuning quality damper, comprise elasitic layer 6 and viscoelastic damping unit 7, and viscoelastic damping unit 7 is located at the bottom of elasitic layer 6, leave the gap between adjacent two viscoelastic damping unit 7, the side of viscoelastic damping unit 7 is vertical with the bottom surface of elasitic layer 6, the Young's modulus of elasitic layer 6 is 8～220GPa, and viscoelastic damping unit 7 is organic silicon rubber or chlorobutyl rubber.
In the present embodiment, elasitic layer 6 is concrete, and Young's modulus is 14.6～36GPa, and viscoelastic damping unit 7 is chlorobutyl rubbers.
A kind of multi-modality broad-frequency tuning quality damper, comprise elasitic layer 6 and viscoelastic damping unit 7, and viscoelastic damping unit 7 is located at the bottom of elasitic layer 6, leave the gap between adjacent two viscoelastic damping unit 7, the Young's modulus of elasitic layer 6 is 8～220GPa, viscoelastic damping unit 7 is organic silicon rubber or chlorobutyl rubber, elasitic layer 6 is an annular, and the side of viscoelastic damping unit 7 is vertical with the tangent plane of the elasitic layer 6 at its place, place, the side and the elasitic layer 6 that are viscoelastic damping unit 7 form an intersection, can make a tangent plane of elasitic layer 6 by this intersection, the side of viscoelastic damping unit 7 is just vertical with this tangent plane at this moment, and the bottom surface indent of viscoelastic damping unit 7, and a common cylndrical surface.
In the present embodiment, elasitic layer 6 is aluminum alloys, and Young's modulus is 70～72GPa, and viscoelastic damping unit 7 is chlorobutyl rubbers.
Embodiment 5
A kind of multi-modality broad-frequency tuning quality damper, comprise elasitic layer 6 and viscoelastic damping unit 7, and viscoelastic damping unit 7 is located at the bottom of elasitic layer 6, leave the gap between adjacent two viscoelastic damping unit 7, the side of viscoelastic damping unit 7 is vertical with the bottom surface of elasitic layer 6, the Young's modulus of elasitic layer 6 is 8～220GPa, and viscoelastic damping unit 7 is organic silicon rubber or chlorobutyl rubber.
In the present embodiment, elasitic layer 6 is Cuprum alloys, and Young's modulus is 74～130GPa, and viscoelastic damping unit 7 is chlorobutyl rubbers.
Embodiment 6
A kind of multi-modality broad-frequency tuning quality damper, comprise elasitic layer 6 and viscoelastic damping unit 7, and viscoelastic damping unit 7 is located at the bottom of elasitic layer 6, leave the gap between adjacent two viscoelastic damping unit 7, the Young's modulus of elasitic layer 6 is 8～220GPa, viscoelastic damping unit 7 is organic silicon rubber or chlorobutyl rubber, elasitic layer 6 is an annular, and the side of viscoelastic damping unit 7 is vertical with the tangent plane of the elasitic layer 6 at its place, place, the side and the elasitic layer 6 that are viscoelastic damping unit 7 form an intersection, can make a tangent plane of elasitic layer 6 by this intersection, the side of viscoelastic damping unit 7 is just vertical with this tangent plane at this moment, and the bottom surface indent of viscoelastic damping unit 7, and a common cylndrical surface.
In the present embodiment, elasitic layer 6 is a cast iron, and Young's modulus is 80～160GPa, and viscoelastic damping unit 7 is chlorobutyl rubbers.
A kind of multi-modality broad-frequency tuning quality damper, comprise elasitic layer 6 and viscoelastic damping unit 7, and viscoelastic damping unit 7 is located at the bottom of elasitic layer 6, leave the gap between adjacent two viscoelastic damping unit 7, the side of viscoelastic damping unit 7 is vertical with the bottom surface of elasitic layer 6, the Young's modulus of elasitic layer 6 is 8～220GPa, and viscoelastic damping unit 7 is organic silicon rubber or chlorobutyl rubber.
In the present embodiment, elasitic layer 6 is alloyed steels, and Young's modulus is 190～220GPa, and viscoelastic damping unit 7 is organic silicon rubbers.
Embodiment 8
A kind of multi-modality broad-frequency tuning quality damper, comprise elasitic layer 6 and viscoelastic damping unit 7, and viscoelastic damping unit 7 is located at the bottom of elasitic layer 6, leave the gap between adjacent two viscoelastic damping unit 7, the Young's modulus of elasitic layer 6 is 8～220GPa, viscoelastic damping unit 7 is organic silicon rubber or chlorobutyl rubber, elasitic layer 6 is an annular, and the side of viscoelastic damping unit 7 is vertical with the tangent plane of the elasitic layer 6 at its place, place, the side and the elasitic layer 6 that are viscoelastic damping unit 7 form an intersection, can make a tangent plane of elasitic layer 6 by this intersection, the side of viscoelastic damping unit 7 is just vertical with this tangent plane at this moment, and the bottom surface indent of viscoelastic damping unit 7, and a common cylndrical surface.
In the present embodiment, elasitic layer 6 is steel, and Young's modulus is 200～220GPa, and viscoelastic damping unit 7 is fluorine butyl rubbers.
Claims (4)
1, a kind of multi-modality broad-frequency tuning quality damper is characterized in that comprising elasitic layer (6) and viscoelastic damping unit (7), and viscoelastic damping unit (7) be located at the bottom of elasitic layer (6), leaves the gap between adjacent two viscoelastic damping unit (7).
2, multi-modality broad-frequency tuning quality damper according to claim 1 is characterized in that the side of described viscoelastic damping unit (7) is vertical with the bottom surface of elasitic layer (6).
3, multi-modality broad-frequency tuning quality damper according to claim 1, the Young's modulus that it is characterized in that described elasitic layer (6) is 8～220GPa, described viscoelastic damping unit (7) is organic silicon rubber or chlorobutyl rubber.
4. multi-modality broad-frequency tuning quality damper according to claim 1 and 2, it is characterized in that elasitic layer (6) is annular, and the side of viscoelastic damping unit (7) is vertical with the tangent plane of the elasitic layer (6) at its place, place, the bottom surface indent of viscoelastic damping unit (7), and a common cylndrical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710020066 CN101012859A (en) | 2007-02-09 | 2007-02-09 | Multi-modality broad-frequency tuning quality damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710020066 CN101012859A (en) | 2007-02-09 | 2007-02-09 | Multi-modality broad-frequency tuning quality damper |
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| CN101012859A true CN101012859A (en) | 2007-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200710020066 Pending CN101012859A (en) | 2007-02-09 | 2007-02-09 | Multi-modality broad-frequency tuning quality damper |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133744A (en) * | 2015-09-28 | 2015-12-09 | 武汉斯坦迪减振技术有限公司 | Tuned mass damper structure with continuously variable frequency |
| CN109944893A (en) * | 2019-04-16 | 2019-06-28 | 西南交通大学 | A kind of multiple spot frequency-selecting vibration suppression structure and its manufacturing method |
-
2007
- 2007-02-09 CN CN 200710020066 patent/CN101012859A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133744A (en) * | 2015-09-28 | 2015-12-09 | 武汉斯坦迪减振技术有限公司 | Tuned mass damper structure with continuously variable frequency |
| CN109944893A (en) * | 2019-04-16 | 2019-06-28 | 西南交通大学 | A kind of multiple spot frequency-selecting vibration suppression structure and its manufacturing method |
| CN109944893B (en) * | 2019-04-16 | 2023-11-03 | 西南交通大学 | Multi-point frequency-selecting vibration-inhibiting structure and manufacturing method thereof |
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