CN103307196B - Novel tuned mass damper with independent bi-direction rigidity - Google Patents
Novel tuned mass damper with independent bi-direction rigidity Download PDFInfo
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- CN103307196B CN103307196B CN201310241886.4A CN201310241886A CN103307196B CN 103307196 B CN103307196 B CN 103307196B CN 201310241886 A CN201310241886 A CN 201310241886A CN 103307196 B CN103307196 B CN 103307196B
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- ball
- connecting rod
- slide block
- silicone oil
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Abstract
The invention relates to a novel tuned mass damper with independent bi-direction rigidity. The novel tuned mass damper comprises a mass block, a ball, damping rods, a silicone oil groove, connecting rods, torsion springs and a slide way system, wherein the weight of the mass block can be completely bore by the ball or jointly bore by the ball and the connecting rods. According to the damper, the damping is obtained through the friction of the damping rods and silicone oil; one end of each connecting rod is fixed at the bottom of the mass block through a rotating bolt, the other end of each connecting rod is placed at the top of a sliding block shaft, and two connecting points can rotate around the bolts; the connecting rod and the upper ends of the torsion springs are welded, the lower ends of the torsion springs and sliding blocks are welded, and the cross section of each sliding block is in an I shape; and the top flanges of the sliding blocks are placed on the flanges of tracks, and small balls are embedded on the flanges of the trough type tracks, so that the sliding block can freely move. The rigidity in two horizontal directions can be obtained through adjustment of the torsion spring.
Description
Technical field
The invention belongs to technical field of civil engineering, be specially a kind of tuned mass damper of Bidirectional independent rigidity.
Background technique
To change the feature such as little, construction is simple, effectiveness in vibration suppression is remarkable with it to original structure in widespread attention for tuned mass damper (TMD) in recent years, and be at home and abroad applied in civil engineering structure.The bearing taking suspended mass block or installation can slide at arc surface can realize the control to Horizontal Vibration.But no matter be suspension system or holder method, all can only provide the identical natural frequency of vibration in the both direction of level, but practical structures often has different cyclophysises on level two direction.And the damped system of traditional tuned mass damper adopts viscous damper usually, involve great expense and poor durability, the phenomenon of often visible viscous damper leakage of oil in actual use.Therefore, there is the damped system of easy cheapness, and the On A Retrofitted Damper that can adjust rigidity in the horizontal direction has more use value.
Summary of the invention
The object of the present invention is to provide a kind of tuned mass damper of Bidirectional independent rigidity, described On A Retrofitted Damper can provide different horizontal rigidities, thus makes it have different frequencies in the two directions, to meet the requirement of tuning controlled structure frequency.In addition, the present invention has transformed viscous damper form, is ensureing, under the condition that using function is complete, to reduce the cost of device as far as possible.
The tuned mass damper of the Bidirectional independent rigidity that the present invention proposes, be made up of mass block 1, connecting rod 2, damper bar 10, silicone oil groove 4, ball 12 and chute system etc., wherein: chute system comprises track 3, slide block 5, torsion spring 7 and rail rolling ball 9, the top of mass block 1 is provided with silicone oil groove 4, the top of damper bar 10 is fixing structurally, bottom probes in silicone oil groove 4, places silicone oil, provide damping by the friction between damper bar 10 and silicone oil in silicone oil groove 4; The bottom of mass block 1 is provided with hemispheric ball grooves 11, and ball 12 is embedded in ball grooves 11, and prevent ball 12 from falling by clamp 13 additional bottom mass block 1, shelve bottom ball 12 structurally, block 1 of ensuring the quality of products can move freely in the horizontal direction; One end of connecting rod 2 is fixed on bottom mass block 1 by rotating bolt 14, and connecting rod 2 can rotate around rotating bolt 14; Connecting rod 2 the other end is held on slide block axle 6 top, and weld with torsion spring 7 upper end, torsion spring 7 lower end is welded with slide block 5, slide block 5 is as a whole with slide block axle 6, and torsion spring 7 is placed on outside slide block axle 6, and the end of connecting rod 2 is square steel plate, it is bored a hole, resistance to plucking bolt 8 inserts described site of perforation, and aims at slide block axle 6 top groove, and connecting rod 2 can freely be rotated; The cross section of slide block 5 is I-shaped, and top flange is shelved on the edge of a wing of grooved track 3, and the edge of a wing embeds rail rolling ball 9 to track 3, and slide block 5 can be moved freely on the track 3.
In the present invention, described mass block 1 can be superimposed or formed by concreting by firm plate.
In the present invention, the material, geometric parameter etc. of described torsion spring 7 should need to determine according to practical stiffness respectively.
In the present invention, the size of described silicone oil groove 4 and the height of silicone oil liquid level, the size of damper bar 10 etc. are by designing or testing acquisition.
In the present invention, the quality of mass block 1 can be born by ball 12 completely, or by ball 12 and connecting rod 2 shared.
The invention has the beneficial effects as follows: by appropriate design torsion spring, different rigidity can be provided with tuning by the frequency of control structure for horizontal both direction.Rub as system provides damping in silicone oil by damper bar, simple structure, cost performance is high.
Accompanying drawing explanation
Fig. 1 is the novel tuned mass damper planimetric map of Bidirectional independent rigidity;
Fig. 2 is the novel tuned mass damper elevation of Bidirectional independent rigidity;
Fig. 3 is the novel tuned mass damper 1-1 sectional drawing of Bidirectional independent rigidity;
Number in the figure: 1-mass block, 2-connecting rod, 3-track, 4-silicone oil groove, 5-slide block, 6-slide block axle, 7-torsion spring, 8-resistance to plucking bolt, 9-rail rolling ball, 10-damper bar, 11-ball grooves, 12-ball, 13-clamp, 14-rotating bolt.
Embodiment
Below in conjunction with accompanying drawing the present invention made and further illustrating.
Embodiment 1: mass block 1 can be superimposed or formed by concreting by firm plate, and reserve square silicone oil groove 4 in center of top, reserves hemisphere ball grooves 11 in bottom center.Damper bar 10 can adopt star section, strengthens the area of contact of itself and silicone oil, improves damping.Ball 12 is imbedded in ball grooves 11, and additional clamp 13 prevents ball 12 from falling.Be fixed on connecting rod 2 bottom mass block 1, the other end of connecting rod 2 is shelved on slide block axle 6, in order to prevent connecting rod 2 and slide block axle 6 from departing from, passes connecting rod 2 end winding support on slide block axle 6 with resistance to plucking bolt 8.The end opening diameter of connecting rod 2 should slightly larger than the diameter of resistance to plucking bolt 8, and resistance to plucking bolt 8 can not too compress connecting rod 2, avoids it to affect the turning power of connecting rod 2.Torsion spring 7 upper end is welded with connecting rod 2, lower end and slide block 5 welded top, and when connecting rod 2 rotates around slide block axle 6, torsion spring 7 provides torsional stiffness.Slide block axle 6 is fixed on I-shaped slide block 5, and the upper lower flange of slide block 5 is stuck on the opening edge of a wing of grooved track 3.In order to reduce friction, the edge of a wing of track 3 embeds along its length row's baby track ball 9, the top flange of slide block 5 is directly shelved on ball 10.The rigidity system of the composition such as track 3, slide block 5, torsion spring 7 and connecting rod 2 has four, and two the rigidity systems being in relative position are one group, and its arrangement as shown in drawings.When mass block 1 moves along a direction, the connecting rod 2 of one group of rigidity system rotates around slide block axle 6, and when having corner to produce, torsion spring 6 provides torsional rigidity, and for mass block 1, the torsional rigidity of spring 7 is converted into the rigidity of substantially horizontal; When mass block 1 moves along another direction, the connecting rod 2 of this group rigidity system promotes slide block axle 6 and slide block 5 slides on the track 3, and torsion spring 7 now can not play a role, so the horizontal rigidity contribution of this group rigidity system to mass block 1 is zero.Mass block 1 is when moving horizontally, and damper bar 10, in silicone oil groove 4, relative movement occurs, and provides damping by the friction between damper bar 10 and silicone oil, helps power consumption.
Claims (2)
1. the tuned mass damper of a Bidirectional independent rigidity, it is characterized in that by mass block (1), connecting rod (2), damper bar (10), silicone oil groove (4), ball (12) and chute system composition, wherein: chute system comprises track (3), slide block (5), torsion spring (7) and rail rolling ball (9), the top of mass block (1) is provided with silicone oil groove (4), the top of damper bar (10) is fixing structurally, bottom probes in silicone oil groove (4), silicone oil is placed in silicone oil groove (4), damping is provided by the friction between damper bar (10) and silicone oil, the bottom of mass block (1) is provided with hemispheric ball grooves (11), ball (12) is embedded in ball grooves (11), prevent ball (12) from falling by the additional clamp (13) in mass block (1) bottom, ball (12) bottom is shelved structurally, and mass block (1) be can move freely in the horizontal direction, mass block (1) bottom is fixed on by rotating bolt (14) in one end of connecting rod (2), and connecting rod (2) can rotate around rotating bolt (14), connecting rod (2) the other end is held on slide block axle (6) top, and weld with torsion spring (7) upper end, torsion spring (7) lower end is welded with slide block (5), slide block (5) is as a whole with slide block axle (6), torsion spring (7) is placed on slide block axle (6) outward, the end of connecting rod (2) is square steel plate, it is bored a hole, resistance to plucking bolt (8) inserts described site of perforation, and aim at slide block axle (6) top groove, connecting rod (2) can freely be rotated, the cross section of slide block (5) is I-shaped, top flange is shelved on the edge of a wing of grooved track (3), track (3) edge of a wing embeds rail rolling ball (9), slide block (5) can be moved freely on track (3).
2. the tuned mass damper of Bidirectional independent rigidity according to claim 1, is characterized in that described mass block (1) is superimposed or formed by concreting by firm plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310241886.4A CN103307196B (en) | 2013-06-19 | 2013-06-19 | Novel tuned mass damper with independent bi-direction rigidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310241886.4A CN103307196B (en) | 2013-06-19 | 2013-06-19 | Novel tuned mass damper with independent bi-direction rigidity |
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| Publication Number | Publication Date |
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| CN103307196A CN103307196A (en) | 2013-09-18 |
| CN103307196B true CN103307196B (en) | 2015-01-14 |
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| CN201310241886.4A Expired - Fee Related CN103307196B (en) | 2013-06-19 | 2013-06-19 | Novel tuned mass damper with independent bi-direction rigidity |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867636B (en) * | 2014-03-27 | 2015-11-11 | 北京航空航天大学 | A kind of tuner-type two-freedom passive damping device |
| CN104315309A (en) * | 2014-09-01 | 2015-01-28 | 周佩龙 | Novel shock absorber for mechanical equipment |
| CN104329407B (en) * | 2014-10-20 | 2017-04-05 | 中科院南京天文仪器有限公司 | A kind of vibration absorber for mobile unit |
| CN106368488A (en) * | 2016-11-10 | 2017-02-01 | 兰州理工大学 | Bidirectional TMD control device and parameter determination method |
| CN107503282B (en) * | 2017-08-06 | 2019-04-26 | 兴化市天东软件科技有限公司 | A kind of MTMD vibration absorber and its installation method |
| CN108004916B (en) * | 2017-12-29 | 2023-07-14 | 中铁二院工程集团有限责任公司 | Novel omnibearing torsion energy-consumption damping support |
| CN111561676A (en) * | 2019-12-05 | 2020-08-21 | 深圳市名家汇科技股份有限公司 | Street lamp device with automatic lifting function |
| CN113898697B (en) * | 2021-10-08 | 2023-03-14 | 上海应用技术大学 | High damping tuned liquid vibration absorber with amplified mass |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5185976A (en) * | 1988-01-06 | 1993-02-16 | Takenaka Corporation | Floor vibration-damping apparatus |
| CN1020776C (en) * | 1990-02-19 | 1993-05-19 | 中国建筑科学研究院工程抗震研究所 | Vibrating isolation floor plate |
| CN1128913C (en) * | 1998-07-01 | 2003-11-26 | 西安交通大学 | Roll-swing type earthquake isolator |
| CN202850118U (en) * | 2012-10-11 | 2013-04-03 | 清华大学 | Pendulum support water tank damper |
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