CN111155673A - Horizontal bearing type tuned mass damper - Google Patents
Horizontal bearing type tuned mass damper Download PDFInfo
- Publication number
- CN111155673A CN111155673A CN202010043738.1A CN202010043738A CN111155673A CN 111155673 A CN111155673 A CN 111155673A CN 202010043738 A CN202010043738 A CN 202010043738A CN 111155673 A CN111155673 A CN 111155673A
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- CN
- China
- Prior art keywords
- bottom plate
- mass damper
- motion
- tuned mass
- mass block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- General Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to a horizontal bearing type tuned mass damper, which comprises a bottom plate, an elastic piece, a motion direction support, lateral supports and a mass block, wherein the mass block is arranged on the bottom plate, the motion direction support is respectively fixed on two sides of the bottom plate along the motion direction, the lateral supports are respectively fixed on two sides of the bottom plate vertical to the motion direction, the elastic piece is respectively connected with the motion direction support and the mass block, and the horizontal bearing type tuned mass damper also comprises a viscoelastic damping body which is respectively and fixedly connected with the lateral supports and the mass block. Compared with the prior art, the mass block type tuned mass damper has the advantages that the lateral rigidity can be provided, the stability of the tuned mass damper is enhanced, the viscoelastic damping body can be driven to generate reciprocating shearing deformation in the reciprocating motion process of the mass block along the motion direction during vibration, the energy consumption of the tuned mass damper is enhanced, and meanwhile, the mass block type tuned mass damper is simple in structure and low in cost.
Description
Technical Field
The invention relates to the technical field of vibration reduction and isolation, in particular to a horizontal bearing type tuned mass damper.
Background
The concept of applying the tuned mass damper to the structure is derived from a dynamic vibration absorber researched by Frahm in 1909, the vibration frequency of the dynamic vibration absorber is adjusted to be close to the frequency of a main structure, when the main structure vibrates due to dynamic load, a mass unit of a TMD (tuned mass damper) attached to the main structure vibrates in the reverse direction due to inertia, a force opposite to the vibration direction is applied to the main structure, and the energy consumption effect of a damping unit is added, so that the vibration of the main structure is obviously attenuated. Tuned mass dampers have been proven to have a significant effect on wind-induced vibration of structures and are currently widely used in the fields of civil engineering, machinery, and the like.
The tuned mass damper generally consists of a mechanical structure, has no problems of sealing leakage and the like due to no participation of fluid media, has no problems of contact, no service life such as abrasion and the like, and has the advantages of simple and reliable structure, temperature resistance, weather resistance and the like. With the development of building materials, structural technologies and the like, the structures with large height-width ratio are more and more, so that higher requirements are provided for the vibration resistance under the action of external load, and a damper with higher vibration suppression efficiency, more stable performance, simpler structure and lower cost needs to be developed. Because the parameters of the main structure in the actual engineering structure often have errors, and the problem of narrow bandwidth of the tuned mass damper is considered, the tuned mass damper is required to be capable of conveniently adjusting the rigidity and damping parameters according to different use occasions.
Disclosure of Invention
It is an object of the present invention to overcome the above-mentioned deficiencies of the prior art by providing a tuned mass damper of the horizontal load carrying type.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a level is to harmonious mass damper of carrier formula, includes bottom plate, elastic component, motion to support, side direction support and quality piece, the quality piece is arranged in on the bottom plate, the motion is fixed in the both sides of bottom plate along the direction of motion respectively to the support, the side direction support is fixed in the both sides of bottom plate perpendicular to direction of motion respectively, the elastic component connects the motion respectively to support and quality piece, still includes the viscoelastic damping body with side direction support and quality piece difference fixed connection.
The bottom plate is provided with a sliding rail along the moving direction, and the mass block is arranged on the sliding rail.
The slide rails are uniformly distributed on the bottom plate.
The motion is to supporting the spacing piece of establishing, spacing piece one end and motion are to supporting fixed connection, the other end of spacing piece is unsettled towards the quality piece.
The limiting piece is a rubber limiting piece.
The motion direction supports are symmetrically fixed on two sides of the bottom plate along the motion direction respectively, and the lateral supports are symmetrically fixed on two sides of the bottom plate perpendicular to the motion direction respectively.
The viscoelastic damping body is detachably connected with the lateral support and the mass block respectively.
The elastic piece is respectively detachably connected with the movement direction support and the mass block.
The elastic piece is a spring.
The viscoelastic damping body is a damping rubber body.
Compared with the prior art, the invention has the following advantages:
(1) the damping device comprises a viscoelastic damping body fixedly connected with a lateral support and a mass block respectively, so that lateral rigidity can be provided, the stability of the tuned mass damper is enhanced, and the mass block can drive the viscoelastic damping body to generate reciprocating shear deformation in the reciprocating motion process along the motion direction during vibration, so that the energy consumption of the tuned mass damper is enhanced, and the damping device is simple in structure and low in cost.
(2) The bottom plate is provided with the slide rail along the motion direction, so that the friction force of the mass block during sliding can be reduced, the motion of the mass block is facilitated when the mass block is small, and the slide rail plays a role in restraining and guiding at the same time, so that the elastic piece is prevented from being deviated due to stretching or compression along the motion direction.
(3) The slide rails are uniformly distributed on the bottom plate, so that the bottom plate can uniformly bear the weight of the mass block, and the stability of the tuned mass damper is enhanced.
(4) The movement direction support is provided with a limiting piece for limiting the movement of the mass block under large vibration, so that the function of deformation overload protection of the elastic piece is achieved, and meanwhile, collision energy consumption can be generated.
(5) The motion direction supports are symmetrically fixed on two sides of the bottom plate along the motion direction respectively, and the lateral supports are symmetrically fixed on two sides of the bottom plate perpendicular to the motion direction respectively, so that the stability of the tuned mass damper is enhanced.
(6) The viscoelastic damping body is detachably connected with the lateral support and the mass block respectively, the elastic pieces are detachably connected with the motion direction support and the mass block respectively, and the resonant frequency of the tuned mass damper can be adjusted by changing the number of the elastic pieces or the weight of the mass block, so that the viscoelastic damping device is suitable for different situations.
(7) The limiting piece is made of rubber, the mass block can be prevented from being damaged due to collision, and meanwhile the damping device has a strong damping characteristic.
Drawings
FIG. 1 is a schematic structural view of the present invention;
reference numerals:
1 is a limiting piece; 2 is a movement direction support; 3 is an elastic piece; 4 is a mass block; 5 is a viscoelastic damping body; 6 is a lateral support; 7 is a slide rail; and 8 is a bottom plate.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Examples
The embodiment provides a horizontal bearing type tuned mass damper, which comprises a bottom plate 8, elastic members 3, moving direction supports 2, lateral supports 6 and a mass block 4, wherein the mass block 4 is arranged on the bottom plate 8, the moving direction supports 2 are respectively fixed on two sides of the bottom plate 8 along the moving direction, the lateral supports 6 are respectively fixed on two sides of the bottom plate 8 perpendicular to the moving direction, the elastic members 3 are respectively connected with the moving direction supports 2 and the mass block 4, and the horizontal bearing type tuned mass damper further comprises viscoelastic damping bodies 5 respectively fixedly connected with the lateral supports 6 and the mass block 4; the structure can provide lateral rigidity and enhance the stability of the tuned mass damper, and the mass block can drive the viscoelastic damping body to generate reciprocating shear deformation in the reciprocating motion process along the motion direction during vibration, so that the energy consumption of the tuned mass damper is enhanced.
Specifically, the method comprises the following steps:
the bottom plate 8 is provided with a slide rail 7 along the motion direction, and the mass block 4 is arranged on the slide rail 7; the slide rail can reduce the frictional force when the mass block slides, is favorable for the motion of the mass block when being small, and simultaneously plays a role in restraining and guiding, thereby ensuring that the elastic part is stretched or compressed along the motion direction without deflection.
The sliding rails 7 are uniformly distributed on the bottom plate 8; the bottom plate can uniformly bear the weight of the mass block, and the stability of the tuned mass damper is enhanced.
The motion direction support 2 is provided with a limiting piece 1, one end of the limiting piece 1 is fixedly connected with the motion direction support 2, and the other end of the limiting piece 1 is suspended towards the mass block 4; the limiting part limits the motion of the mass block under large vibration, so that the function of elastic part deformation overload protection is achieved, and meanwhile collision energy consumption can be generated.
The moving direction supports 2 are symmetrically fixed on two sides of the bottom plate 8 along the moving direction respectively, and the lateral supports 6 are symmetrically fixed on two sides of the bottom plate 8 perpendicular to the moving direction respectively; the stability of the tuned mass damper is advantageously enhanced.
The viscoelastic damping body 5 is respectively connected with the lateral support 6 and the mass block 4 through bolts, and the elastic part 3 is respectively detachably connected with the movement direction support 2 and the mass block 4; the resonant frequency of the tuned mass damper can be adjusted by changing the number of the elastic members or the weight of the mass, thereby being suitable for different situations.
The limiting piece 1 is made of rubber, can prevent the mass block from being damaged due to collision, and has strong damping characteristic.
The elastic part 3 is a spring, the spring provides movement stiffness, the springs are arranged in parallel, the viscoelastic damping body 5 is a damping rubber body, and the damping rubber bodies can also be arranged in parallel. The mass 4 can be combined by using objects with different weights, and the rest of the components which are not emphasized are common materials.
Claims (10)
1. The utility model provides a level is to harmonious mass damper of carrier formula, includes bottom plate (8), elastic component (3), motion to supporting (2), side direction support (6) and quality piece (4), quality piece (4) are arranged in on bottom plate (8), the motion is fixed in bottom plate (8) respectively along the both sides of direction of motion to supporting (2), side direction support (6) are fixed in bottom plate (8) perpendicular to direction of motion's both sides respectively, elastic component (3) connect the motion respectively to supporting (2) and quality piece (4), its characterized in that still includes the viscoelastic damping body (5) with side direction support (6) and quality piece (4) difference fixed connection.
2. A tuned mass damper of the horizontal load bearing type according to claim 1, characterized in that the bottom plate (8) is provided with sliding rails (7) in the direction of motion, the mass (4) resting on the sliding rails (7).
3. A tuned mass damper of the horizontal load bearing type according to claim 2, characterized in that said sliding rails (7) are evenly distributed on the bottom plate (8).
4. The tuned mass damper according to claim 1, wherein the motion direction support (2) is provided with a limiting member (1), one end of the limiting member (1) is fixedly connected to the motion direction support (2), and the other end of the limiting member (1) is suspended toward the mass block (4).
5. The tuned mass damper according to claim 4, wherein said stop (1) is a rubber stop.
6. A tuned mass damper of the horizontal load bearing type according to claim 1, wherein said moving direction supports (2) are symmetrically fixed to the bottom plate (8) on both sides in the moving direction, respectively, and said lateral supports (6) are symmetrically fixed to the bottom plate (8) on both sides perpendicular to the moving direction, respectively.
7. A tuned mass damper of the horizontal load carrying type according to claim 1, wherein said viscoelastic damping body (5) is detachably connected to said lateral support (6) and said mass (4), respectively.
8. A tuned mass damper of the horizontal load carrying type according to claim 1, wherein said resilient member (3) is detachably connected to the moving support (2) and the mass (4), respectively.
9. A tuned mass damper of the horizontal load carrying type according to claim 1, characterized in that said resilient member (3) is a spring.
10. A tuned mass damper according to claim 1, characterised in that said viscoelastic damping body (5) is a damping rubber body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010043738.1A CN111155673A (en) | 2020-01-15 | 2020-01-15 | Horizontal bearing type tuned mass damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010043738.1A CN111155673A (en) | 2020-01-15 | 2020-01-15 | Horizontal bearing type tuned mass damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111155673A true CN111155673A (en) | 2020-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010043738.1A Pending CN111155673A (en) | 2020-01-15 | 2020-01-15 | Horizontal bearing type tuned mass damper |
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| CN (1) | CN111155673A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114688194A (en) * | 2020-12-31 | 2022-07-01 | 北京金风科创风电设备有限公司 | Detachable damper and method for lifting and lowering the same |
-
2020
- 2020-01-15 CN CN202010043738.1A patent/CN111155673A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114688194A (en) * | 2020-12-31 | 2022-07-01 | 北京金风科创风电设备有限公司 | Detachable damper and method for lifting and lowering the same |
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Address after: No.65 Chifeng Road, Yangpu District, Shanghai 200092 Applicant after: Tongji University Architectural Design and Research Institute (Group) Co.,Ltd. Applicant after: Shanghai Material Research Institute Co.,Ltd. Address before: No.65 Chifeng Road, Yangpu District, Shanghai 200092 Applicant before: Tongji University Architectural Design and Research Institute (Group) Co.,Ltd. Applicant before: SHANGHAI Research Institute OF MATERIALS |