CN104929268A - Frequency continuously adjustable mass damper - Google Patents
Frequency continuously adjustable mass damper Download PDFInfo
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- CN104929268A CN104929268A CN201510415413.0A CN201510415413A CN104929268A CN 104929268 A CN104929268 A CN 104929268A CN 201510415413 A CN201510415413 A CN 201510415413A CN 104929268 A CN104929268 A CN 104929268A
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- column
- crossbeam
- ballast box
- frequency
- mass damper
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Abstract
The invention belongs to the technical field of civil engineering structure vibration damping and provides a frequency continuously adjustable mass damper. The frequency continuously adjustable mass damper is mainly composed of stand columns, a weight box, weight steel plates, a cross beam, a bottom plate, pressing plates and the like. The frequency continuously adjustable mass damper is suitable for controlling high-frequency vibration in large-span sky bridges, port piers and large-span building structures. Compared with a traditional tuned mass damper, the cross beam is adopted to replace springs to provide rigidity of a damping system and reduce the high-frequency vibration. The stand columns are connected with the bottom plate and the pressing plates in a clamping mode, the mounting positions of the stand columns can be adjusted in the length direction of the cross beam, and then the span of the cross beam can be changed. The frequency of the damping system can be continuously adjusted by adjusting the span of the cross beam. The weight steel plates are vertically assembled and connected so that the mounting space can be reduced; meanwhile, the frequency of the damping system can be slightly adjusted by changing the number of the weight steel plates.
Description
Technical field
The invention belongs to civil engineering structure antivibration area, relate to a kind of frequency continuously adjustabe type mass damper using column, ballast box, counterweight steel plate, crossbeam, base plate, pressing plate composition.
Background technology
Tuned mass damper (Tuned Mass Damper is called for short TMD) is a kind of damping control device of classics, the vibrational system be normally made up of spring, damper and mass.But, tuned mass damper is a kind of frequency sensitive type vibration absorber, in actual fabrication, there are the following problems: (1) current tuned mass damper is all to provide rigidity usually by spring, by the restriction of manufacture craft, the rigidity of spring is difficult to accurate making, causes the frequency of vibration insulating system to be difficult to ensure; (2) current tuned mass damper is normally after spring completes, and changed the frequency of system by the quality changing counterweight, this method is very limited for the tunable range of frequency; (3) current tuned mass damper is only applicable to the vibration damping under low-frequency excitation, and for the dither that plant equipment etc. causes, traditional tuned mass damper cannot be suitable for.Due to large widely using across floor and cantilevered structure, the comfort level excessive problem caused by Pedestrian Load or mechanical oscillation gets more and more, and traditional tuned mass damper can not solve this kind of vibration problem.
Summary of the invention
The object of the invention is to propose a kind of novel tuned mass damper, the frequency continuously adjustabe of system can be realized, and the situation of high frequency pumping vibration damping can be applicable to.
Technical scheme of the present invention adopts crossbeam 6 to the rigidity replacing spring to provide vibration insulating system, realizes the object reducing dither.By adjusting the span of crossbeam 6, vibration insulating system frequency can be regulated continuously.Counterweight steel plate 5 adopts vertical assembly connection, can reduce installing space, also can be finely tuned the frequency of vibration insulating system by the quantity changing counterweight steel plate 5 simultaneously.
A kind of frequency continuously adjustabe type mass damper, comprises base plate 1, pressing plate 2, column 3, ballast box 4, counterweight steel plate 5 and crossbeam 6.
The bottom of column 3 arranges rectangular suspension column, and top arranges rectangular cushion cap; The suspension column of column 3 is fixed between pressing plate 2 and base plate 1 by bolt I 11, and namely two pressing plates 2 are pressed in the two ends of the suspension column of column 3 respectively, and form transportable gap; Before the column that is fixedly clamped, column 3 is removable between two pressing plates 2, regulates the span of crossbeam 6 with this, reaches the continuously adjustable object of mass damper frequency.
Crossbeam 6 is placed on the cushion cap of two columns 3, is fixed by bolt II 12 by column fastener 7.At column fastener 7 and crossbeam 6, arrange rubber sheet gasket II 10 between crossbeam 6 and column 3, after tightening to prevent bolt II 12, crossbeam 6 slides axially between the cushion cap and column fastener 7 of column 3.The bolt hole be connected with column fastener 7 for the cushion cap of column 3 is arranged perpendicular to the straight trough mouth of axial direction, can carry out fine adjustment to the lateral attitude of crossbeam.
Ballast box 4 is drawer type body structure, is fixed on the cross beam 6 by ballast box 4, be placed between two columns 3 by ballast box fastener 8.Ballast box 4 and crossbeam 6, between crossbeam 6 and ballast box fastener 8, rubber sheet gasket I is set, crossbeam 6 is clamped between ballast box 4 and ballast box fastener 8, prevents bolt II 12 from tightening rear ballast box 4 and slide axially along crossbeam 6.Counterweight fastener 8 is connected by bolt II 12 with ballast box 4, and bolt hole is arranged perpendicular to the straight trough mouth of axial direction, when ballast box 4 is installed, can finely tune along the horizontal direction of crossbeam 3, and the damper horizontal direction caused to avoid ballast box 4 is eccentric.
Counterweight steel plate 5 adopts vertical assembly connection, can reduce installing space.Counterweight steel plate 5 is assemblied in ballast box 4 by bolt III 13, by changing the frequency of the fine-tuning vibration insulating system of quantity of counterweight steel plate 5.
Effect of the present invention and benefit are the dithers that this vibration absorber can reduce Loads of Long-span Bridges or floor, ensure the safety of structure.Be applicable to large across the floor in pedestrian overpass, harbour trestle and large span architecture structure, huge economic benefit and social benefit can be produced.
Accompanying drawing explanation
Fig. 1 is the three-dimension integrally schematic diagram of frequency continuously adjustabe type mass damper.
Fig. 2 is the elevation of frequency continuously adjustabe type mass damper.
Fig. 3 is the side elevational view of frequency continuously adjustabe type mass damper.
Fig. 4 is the 1-1 sectional drawing in accompanying drawing 2.
Fig. 5 is the a-quadrant partial enlarged drawing in accompanying drawing 1.
Fig. 6 is column 3 schematic diagram.
Fig. 7 is ballast box 4 schematic diagram.
In figure: 1 base plate; 2 pressing plates; 3 columns; 4 ballast boxes; 5 counterweight steel plates; 6 crossbeams; 7 column fasteners; 8 ballast box fasteners; 9 rubber sheet gaskets I; 10 rubber sheet gaskets II; 11 bolts I; 12 bolts II; 13 bolts III.
Detailed description of the invention
Below in conjunction with accompanying drawing and technical scheme, further illustrate the specific embodiment of the present invention.
A kind of frequency continuously adjustabe type mass damper, comprises base plate 1, pressing plate 2, column 3, ballast box 4, counterweight steel plate 5 and crossbeam 6.
Overall schematic of the present invention, facade, sectional drawing are as Figure 1-Figure 4.Column 3 as shown in Figure 6, arranges rectangular suspension column in bottom, arranges rectangular column cushion cap at top.Bolt I 11 is pre-buried or be implanted to and need arrange in the structure of damper, by tighting a bolt I 11, the suspension column of column 3 is fixedly clamped between base plate 1 and pressing plate 2.Before the column that is fixedly clamped, the suspension column of column 3 is removable on the length direction of base plate 1, regulates the span of crossbeam 6 with this, reaches the continuously adjustable object of tuned mass damper frequency.As shown in Figure 5, crossbeam 6 is taken and is placed on the rectangle cushion cap of column 3, then fixed by bolt II 12 by column fastener 7.Column fastener 7 and crossbeam 6, arrange rubber sheet gasket II 10 between column 3 and crossbeam 6, after tightening to prevent bolt II 12, crossbeam 6 slides axially between the cushion cap and column fastener 7 of column 3.The bolt hole that the cushion cap of column 3 is connected with column fastener 7 is arranged perpendicular to the straight trough mouth of axial direction, can carry out fine adjustment to the lateral attitude of crossbeam.
Ballast box 4 as shown in Figure 7, by ballast box fastener 8, is fixed on the cross beam 6 by ballast box 4.Ballast box 4 and crossbeam 6, between crossbeam 6 and ballast box fastener 8, rubber sheet gasket I is set, crossbeam 6 is clamped between ballast box 4 and ballast box fastener 8, prevents bolt II 12 from tightening rear ballast box 4 and slide axially along crossbeam 6.Counterweight fastener 8 is connected by bolt II 12 with ballast box 4, and bolt hole is arranged perpendicular to the straight trough mouth of axial direction, when ballast box 4 is installed, can finely tune along the horizontal direction of crossbeam 3, and the damper horizontal direction caused to avoid ballast box 4 is eccentric.
Counterweight steel plate 5 adopts vertical assembly connection, can reduce installing space.Counterweight steel plate 5 is assemblied in ballast box 4 by bolt III 13, by changing the frequency of the fine-tuning vibration insulating system of quantity of counterweight steel plate 5.
Concrete mounting means of the present invention is as follows: first, the structure of installing damper is installed in advance or inserts bolt I 11, then placing base plate 1, making the position uniform force of structure being installed damper, avoid local failure.As shown in Figure 4, be placed on by the die of column 3 on base plate 1, push down with pressing plate 2, the bolt hole of pressing plate 2 is corresponding with bolt I 11, and tights a bolt I 11.Place rubber sheet gasket II 10 on the top of column 3, crossbeam 6 is equipped on column 3, then rubber sheet gasket II 10 is placed on column 3, buckle column fastener 7, as shown in Figure 5.Column 3 is connected with column fastener 7 bolt II 12, and because column 3 and the bolt hole on column fastener 7 are the form of straight trough mouth, column fastener 7 and column 3 can avoid structure eccentric along straight trough mouth directional trim, are tightened by bolt II 12 after regulating.Shown in Fig. 4, in the middle of crossbeam 6, place rubber sheet gasket I 9, ballast box fastener 8 is detained on the cross beam 6, after ballast box 4 is placed rubber sheet gasket I 9, with bolt II 12, ballast box accessory 8 and ballast box 4 are tightened.Counterweight steel plate 5 is assemblied in ballast box 4, with bolt III 13, counterweight steel plate 5 is fixed in ballast box 4.Due to the form that bolt hole is straight trough mouth, to ballast box 4 along straight trough mouth directional trim, avoid the damper structure bias because counterweight steel plate 5 causes.Finally, the frequency of damping adjusting device, by changing the span of crossbeam 6, and the quality of counterweight steel plate 5 carrys out the frequency of damping adjusting device.After regulating frequency, fix all bolts, damper is installed and just can be completed.
Advantage of the present invention can be summarized as follows: first, and shock mitigation system frequency can regulate continuously, regulates shock mitigation system frequency continuously by change crossbeam 6 span and counterweight steel plate 5 weight.In addition, whole shock mitigation system is fabricated construction, is convenient to implement, and counterweight steel plate adopts vertical assembly connection, effectively can save space.
Claims (1)
1. a frequency continuously adjustabe type mass damper, is characterized in that, this frequency continuously adjustabe type mass damper comprises base plate, pressing plate, column, ballast box, counterweight steel plate and crossbeam;
The bottom of column arranges rectangular suspension column, and top arranges rectangular cushion cap; The suspension column of column is fixed between pressing plate and base plate by bolt I, and namely two pressing plates are pressed in the two ends of the suspension column of column respectively, and forms transportable gap; Before the column that is fixedly clamped, column is removable between two pressing plates, regulates the span of crossbeam with this, reaches mass damper frequency continuously adjustabe;
Crossbeam is placed on the cushion cap of two columns, is fixed by bolt II by column fastener; At column fastener and crossbeam, rubber sheet gasket II is set between crossbeam and column; The bolt hole be connected with column fastener for the cushion cap of column is arranged perpendicular to the straight trough mouth of axial direction, carries out fine adjustment to the lateral attitude of crossbeam;
Ballast box is drawer type body structure, is fixed on crossbeam by ballast box fastener by ballast box, is placed between two columns; Ballast box and crossbeam, between crossbeam and ballast box fastener, rubber sheet gasket I is set; Counterweight fastener is connected by bolt II with ballast box, and bolt hole is arranged perpendicular to the straight trough mouth of axial direction, when ballast box is installed, can finely tune along the horizontal direction of crossbeam;
Counterweight steel plate adopts vertical assembly connection, and counterweight steel plate is assemblied in ballast box by bolt III, by changing the frequency of the quantity fine setting vibration insulating system of counterweight steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510415413.0A CN104929268B (en) | 2015-07-15 | 2015-07-15 | Frequency continuously adjustable mass damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510415413.0A CN104929268B (en) | 2015-07-15 | 2015-07-15 | Frequency continuously adjustable mass damper |
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| Publication Number | Publication Date |
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| CN104929268A true CN104929268A (en) | 2015-09-23 |
| CN104929268B CN104929268B (en) | 2017-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510415413.0A Active CN104929268B (en) | 2015-07-15 | 2015-07-15 | Frequency continuously adjustable mass damper |
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| CN (1) | CN104929268B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355022A (en) * | 2017-07-18 | 2017-11-17 | 大连理工大学 | A kind of two-way suspension-mass pendulum vibration insulating system |
| CN109518826A (en) * | 2019-01-06 | 2019-03-26 | 大连理工大学 | A kind of hydroenergy storage station mill construction vibration control apparatus and control method |
| CN113152707A (en) * | 2020-12-31 | 2021-07-23 | 同济大学 | Polygonal mass continuously adjustable damper |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1614148A (en) * | 2004-11-23 | 2005-05-11 | 大连理工大学 | Oriented vertical adjustable tuning mass bumper |
| JP5146757B2 (en) * | 2008-08-07 | 2013-02-20 | 清水建設株式会社 | Beam vibration reduction mechanism |
| CN104154172A (en) * | 2014-07-18 | 2014-11-19 | 中国船舶重工集团公司第七一九研究所 | Adaptive frequency-modulation type dynamic vibration absorber |
| CN204185957U (en) * | 2014-09-30 | 2015-03-04 | 华北水利水电大学 | The vertical tuned mass damper of a kind of beam with both ends built-in formula |
| CN204753881U (en) * | 2015-07-15 | 2015-11-11 | 大连理工大学 | Frequency continuously adjustable type mass damper |
-
2015
- 2015-07-15 CN CN201510415413.0A patent/CN104929268B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1614148A (en) * | 2004-11-23 | 2005-05-11 | 大连理工大学 | Oriented vertical adjustable tuning mass bumper |
| JP5146757B2 (en) * | 2008-08-07 | 2013-02-20 | 清水建設株式会社 | Beam vibration reduction mechanism |
| CN104154172A (en) * | 2014-07-18 | 2014-11-19 | 中国船舶重工集团公司第七一九研究所 | Adaptive frequency-modulation type dynamic vibration absorber |
| CN204185957U (en) * | 2014-09-30 | 2015-03-04 | 华北水利水电大学 | The vertical tuned mass damper of a kind of beam with both ends built-in formula |
| CN204753881U (en) * | 2015-07-15 | 2015-11-11 | 大连理工大学 | Frequency continuously adjustable type mass damper |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355022A (en) * | 2017-07-18 | 2017-11-17 | 大连理工大学 | A kind of two-way suspension-mass pendulum vibration insulating system |
| CN107355022B (en) * | 2017-07-18 | 2022-12-27 | 大连理工大学 | Two-way suspension mass pendulum vibration reduction system |
| CN109518826A (en) * | 2019-01-06 | 2019-03-26 | 大连理工大学 | A kind of hydroenergy storage station mill construction vibration control apparatus and control method |
| CN109518826B (en) * | 2019-01-06 | 2023-12-19 | 大连理工大学 | Vibration control device and control method for pumped storage power station factory building structure |
| CN113152707A (en) * | 2020-12-31 | 2021-07-23 | 同济大学 | Polygonal mass continuously adjustable damper |
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| Publication number | Publication date |
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| CN104929268B (en) | 2017-05-03 |
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