CN105156578A - Vertical adjustable frequency modulation mass damper - Google Patents

Vertical adjustable frequency modulation mass damper Download PDF

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Publication number
CN105156578A
CN105156578A CN201510644925.4A CN201510644925A CN105156578A CN 105156578 A CN105156578 A CN 105156578A CN 201510644925 A CN201510644925 A CN 201510644925A CN 105156578 A CN105156578 A CN 105156578A
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China
Prior art keywords
loop bar
lower support
upper bracket
gear
support frame
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CN201510644925.4A
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Chinese (zh)
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CN105156578B (en
Inventor
王惠强
王豫
顾钦钦
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WUXI FUYO TECH Co Ltd
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WUXI FUYO TECH Co Ltd
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Priority to CN201510644925.4A priority Critical patent/CN105156578B/en
Publication of CN105156578A publication Critical patent/CN105156578A/en
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Publication of CN105156578B publication Critical patent/CN105156578B/en
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Abstract

The invention relates to a frequency modulation mass damper, in particular to a vertical adjustable frequency modulation mass damper and belongs to the technical field of frequency modulation mass dampers. The frequency modulation mass damper comprises an upper support, a lower support and a mass block. The middles of the two sides of the upper support and the lower support are connected through a viscous damper. A first-gear sleeve rod assembly and a second-gear sleeve rod assembly are arranged on the front portions of the two sides of the upper support and the lower support, and the first-gear sleeve rod assembly or the second-gear sleeve rod assembly is sleeved with a spring. A guide rail is arranged on each of the left and right sides of the upper end of the upper support, the mass block is connected to the guide rails in a sliding mode, and the rear end of the mass block is connected with an adjusting screw which is connected with a screw nut fixed to the rear portion of the upper support. According to the frequency modulation mass damper, the screw is adopted by the portion of the mass block for adjusting the distance so as to adjust the mass distribution, the spring system portion is of a two-gear adjustable structure, and the viscous damper adjusts the height of an insertion plate to adjust the required damping value; a suspension mounting mode and a supporting mounting mode can be selected according to site conditions, the adaptive capacity is high, and mounting is convenient.

Description

Vertical adjustable tuned mass damper, TMD
Technical field
The present invention relates to a kind of tuned mass damper, TMD, a kind of vertical adjustable tuned mass damper, TMD, belongs to tuned mass damper, TMD technical field specifically.
Background technique
Tuned mass damper, TMD (TunedMassDamper, TMD) system is a class of the passive vibration damping hierarchy of control of structure, and it is made up of main structure and the tuned mass damper, TMD be attached in main structure.Wherein tuned mass damper, TMD comprises solid masses, spring cushion and damper etc., it has quality, rigidity and damping, by changing the natural frequency of vibration of quality or stiffness equivalent tuned mass damper, TMD, make it as far as possible close to fundamental frequency or the excited frequency of main structure, when vibrating when main structure excited target, tuned mass damper, TMD will produce an inertial force effect contrary with structural vibration direction structurally, makes the dynamic respons of main structure decay and be controlled.
There is frequency in existing tuned mass damper, TMD and damping is unadjustable or regulate complicated difficult problem of getting up, situation not identical with the fundamental frequency of main structure when damper is installed can be produced, thus just not reaching the effect making agent structure vibration damping, installation self adaption is poor.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, thus a kind of vertical adjustable tuned mass damper, TMD is provided, the dynamic respons of main structure can be made to decay and be controlled; Meanwhile, there is frequency in solution tuned mass damper, TMD and damping is unadjustable or regulate complicated difficult problem of getting up, and make damped system fully play effect, effectiveness in vibration suppression is remarkable.
According to technological scheme provided by the invention, vertical adjustable tuned mass damper, TMD comprises upper bracket, lower support frame and mass block, it is characterized in that: upper bracket and rear portion, lower support frame both sides are rotationally connected by plummer block housing bearing, and upper bracket is connected by viscous damper with lower support frame two middle side part; Upper bracket and lower support frame two forequarter are provided with one grade of loop bar assembly and second gear loop bar assembly, pocketed springs on one grade of loop bar assembly or second gear loop bar assembly; The left and right sides, upper bracket upper end is provided with guide rail, slide on rails quality of connection block, and mass block rear end connects adjustment screw mandrel, regulates screw mandrel to be connected with the feed screw nut being fixed on upper bracket rear portion.
Further, one grade of loop bar assembly comprises the upper loop bar of corresponding a grade of arranging and one grade of lower loop bar up and down, and one grade of upper loop bar upper end is fixed on upper bracket, and one grade of lower loop bar lower end is fixed on lower support frame.
Further, second gear loop bar assembly comprises up and down loop bar under loop bar and second gear on the corresponding second gear arranged, and on second gear, loop bar upper end is fixed on upper bracket, and under second gear, loop bar lower end is fixed on lower support frame (2).
Further, upper bracket and lower support frame two forequarter are provided with position-limited lever, and position-limited lever lower end is fixed on lower support frame, and position-limited lever and upper bracket are slidably connected, and are provided with the first stop nut (13) and the second stop nut on position-limited lever top.
Compared with the prior art the present invention has the following advantages:
Structure of the present invention is simple, compact, reasonable, and overall multisystem is adjustable, easy to adjust, and regulation range is wide; Easy to maintenance, cost is low, long service life; Mass block part adopts screw mandrel adjustable range to carry out quality of regulation distribution, and spring system part adopts folk art term adjustable structure, and viscous damper adjusts required damping value by regulating the height of plate; Mass block motion has the sensitivity of height, ensures that damper effectively plays a role; Can select suspending type and supporting type two kinds of mounting types according to field condition, adaptive ability is strong, easy for installation.
Accompanying drawing explanation
Fig. 1 is plan view of the present invention.
Fig. 2 is plan view of the present invention.
Description of reference numerals: 1-upper bracket, 2-lower support frame, 3-plummer block housing bearing, 4-mass block, 5-guide rail, 6-to regulate on screw mandrel, 7-feed screw nut, 8-viscous damper, 9-spring, the upper loop bar of 10a-mono-grade, 10b-mono-grade of lower loop bar, 11a-second gear loop bar, 12-position-limited lever, 13-first stop nut, 14-second stop nut under loop bar, 11b-second gear.
Embodiment
Embodiment in is by reference to the accompanying drawings further described by the present invention below:
As shown in Figure 1 and 2, the present invention mainly comprises upper bracket 1, lower support frame 2 and mass block 4, and upper bracket 1 and rear portion, lower support frame 2 both sides are rotationally connected by plummer block housing bearing 3.Upper bracket 1 and lower support frame 2 liang of middle side parts are connected by viscous damper 8, can adjust required damping value by viscous damper 8.
Upper bracket 1 and lower support frame 2 liang of forequarters are provided with one grade of loop bar assembly and second gear loop bar assembly, according to use needs, and pocketed springs 9 on one grade of loop bar assembly or second gear loop bar assembly.
Described one grade of loop bar assembly comprises upper loop bar 10a and a grade of lower loop bar 10b of corresponding a grade of arranging up and down, and one grade of upper loop bar 10a upper end is fixed on upper bracket 1, and one grade of lower loop bar 10b lower end is fixed on lower support frame 2.
Described second gear loop bar assembly comprises up and down loop bar 11b under loop bar 11a and second gear on the corresponding second gear arranged, and on second gear, loop bar 11a upper end is fixed on upper bracket 1, and under second gear, loop bar 11b lower end is fixed on lower support frame 2.
Described upper bracket 1 and lower support frame 2 liang of forequarters are provided with position-limited lever 12, and position-limited lever 12 lower end is fixed on lower support frame 2, and position-limited lever 12 and upper bracket 1 are slidably connected.The first stop nut 13 and the second stop nut 14 is provided with, by the amplitude of the first stop nut 13 and the second stop nut 14 spacing upper bracket 1 vertical tremor on position-limited lever 12 top.Position-limited lever 12 can limit the movement of mass block when Large travel range vibrates, the destruction to agent structure under avoiding Large travel range to vibrate.
The left and right sides, upper bracket 1 upper end is provided with guide rail 5, and guide rail 5 is slidably connected mass block 4, and mass block 4 rear end connects adjustment screw mandrel 6, regulates screw mandrel 6 to be connected with the feed screw nut 7 being fixed on upper bracket 1 rear portion.By the distribution regulating screw mandrel 6 can adjust whole mass block, thus damping adjusting device frequency.
Working principle of the present invention is: the present invention by inertial mass, and is equipped with spring and is connected with agent structure with viscous damper.When agent structure is subject to external load generation vibration, drive adjustable tuned mass damper, TMD to move together, consequent inertial force feeds back in main structure again, thus suppresses main structure vibration.The key that the present invention can play a role regulates its frequency and damping value, and the present invention is adjustable, easy to adjust by multisystem, and regulation range is wide, and make vibration damping equipment effect optimization, effectiveness in vibration suppression is remarkable.

Claims (4)

1. a vertical adjustable tuned mass damper, TMD, comprise upper bracket (1), lower support frame (2) and mass block (4), it is characterized in that: upper bracket (1) and lower support frame (2) rear portion, both sides are rotationally connected by plummer block housing bearing (3), and upper bracket (1) is connected by viscous damper (8) with lower support frame (2) two middle side part; Upper bracket (1) and lower support frame (2) two forequarter are provided with one grade of loop bar assembly and second gear loop bar assembly, pocketed springs (9) on one grade of loop bar assembly or second gear loop bar assembly; Upper bracket (1) left and right sides, upper end is provided with guide rail (5), and guide rail (5) is slidably connected mass block (4), and mass block (4) rear end connects adjustment screw mandrel (6), regulates screw mandrel (6) to be connected with the feed screw nut (7) being fixed on upper bracket (1) rear portion.
2. vertical adjustable tuned mass damper, TMD as claimed in claim 1, it is characterized in that: described one grade of loop bar assembly comprises the upper loop bar (10a) of corresponding a grade of arranging and one grade of lower loop bar (10b) up and down, one grade of upper loop bar (10a) upper end is fixed on upper bracket (1), and one grade of lower loop bar (10b) lower end is fixed on lower support frame (2).
3. vertical adjustable tuned mass damper, TMD as claimed in claim 1, it is characterized in that: described second gear loop bar assembly comprises up and down loop bar (11b) under loop bar (11a) and second gear on the corresponding second gear arranged, on second gear, loop bar (11a) upper end is fixed on upper bracket (1), and under second gear, loop bar (11b) lower end is fixed on lower support frame (2).
4. vertical adjustable tuned mass damper, TMD as claimed in claim 1, it is characterized in that: described upper bracket (1) and lower support frame (2) two forequarter are provided with position-limited lever (12), position-limited lever (12) lower end is fixed on lower support frame (2), position-limited lever (12) and upper bracket (1) are slidably connected, and are provided with the first stop nut (13) and the second stop nut (14) on position-limited lever (12) top.
CN201510644925.4A 2015-10-08 2015-10-08 Vertical adjustable tuned mass damper, TMD Active CN105156578B (en)

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Application Number Priority Date Filing Date Title
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CN105156578A true CN105156578A (en) 2015-12-16
CN105156578B CN105156578B (en) 2017-09-29

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105821761A (en) * 2016-05-31 2016-08-03 无锡圣丰建筑新材料有限公司 Self-replaced type shock isolation rubber support
CN107841938A (en) * 2017-12-06 2018-03-27 南通蓝科减震科技有限公司 It is a kind of can continuous frequency modulation Novel sliding TMD
CN106245970B (en) * 2016-08-04 2018-08-10 上海路博减振科技股份有限公司 A kind of self-adapting tuning mass damper
CN109115450A (en) * 2018-10-24 2019-01-01 浙江大学 Wind tunnel model damper and wind tunnel model component

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07217252A (en) * 1994-02-03 1995-08-15 Konoike Constr Ltd Vibration control device of structure
TW270950B (en) * 1992-03-03 1996-02-21 Kashima Kensetsu Kk Vibration control device for a structure (2)
JPH08152045A (en) * 1994-11-30 1996-06-11 Mitsubishi Steel Mfg Co Ltd Vibration control device for structure
CN201835397U (en) * 2010-08-26 2011-05-18 北京市建筑设计研究院 TMD (tuned mass damper) device
CN205078684U (en) * 2015-10-08 2016-03-09 无锡圣丰建筑新材料有限公司 Tuned mass damper with adjustable it is vertical

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW270950B (en) * 1992-03-03 1996-02-21 Kashima Kensetsu Kk Vibration control device for a structure (2)
JPH07217252A (en) * 1994-02-03 1995-08-15 Konoike Constr Ltd Vibration control device of structure
JPH08152045A (en) * 1994-11-30 1996-06-11 Mitsubishi Steel Mfg Co Ltd Vibration control device for structure
CN201835397U (en) * 2010-08-26 2011-05-18 北京市建筑设计研究院 TMD (tuned mass damper) device
CN205078684U (en) * 2015-10-08 2016-03-09 无锡圣丰建筑新材料有限公司 Tuned mass damper with adjustable it is vertical

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105821761A (en) * 2016-05-31 2016-08-03 无锡圣丰建筑新材料有限公司 Self-replaced type shock isolation rubber support
CN106245970B (en) * 2016-08-04 2018-08-10 上海路博减振科技股份有限公司 A kind of self-adapting tuning mass damper
CN107841938A (en) * 2017-12-06 2018-03-27 南通蓝科减震科技有限公司 It is a kind of can continuous frequency modulation Novel sliding TMD
CN109115450A (en) * 2018-10-24 2019-01-01 浙江大学 Wind tunnel model damper and wind tunnel model component
CN109115450B (en) * 2018-10-24 2024-03-29 浙江大学 Wind tunnel model damper and wind tunnel model assembly

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