CN105422711B - Overhead type multiple tuned mass dampers damping device - Google Patents
Overhead type multiple tuned mass dampers damping device Download PDFInfo
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- CN105422711B CN105422711B CN201511027457.2A CN201511027457A CN105422711B CN 105422711 B CN105422711 B CN 105422711B CN 201511027457 A CN201511027457 A CN 201511027457A CN 105422711 B CN105422711 B CN 105422711B
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- damping device
- mass block
- horizontal stand
- damping
- support
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Classifications
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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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- 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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
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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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/08—Inertia
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The present invention proposes overhead type multiple tuned mass dampers damping device, belongs to amping device technical field, solves the problems, such as that existing tuned mass damper technology is not used to long period porcelain knob type electrical equipment damping.The damping device includes support device, quality device and stiffness means；The support device includes perpendicular support group and N layers of horizontal stand；The quality device includes N pieces of mass block, wherein N is positive integer；Mass block is fixedly installed in by stiffness means in support device.N layers of horizontal stand and N pieces of mass block correspond, and mass block is positioned over the center of horizontal stand upper surface.The damping device is at low cost especially suitable for long period electrical equipment, equipment is changed it is small, substantially will not aging.
Description
Technical field
The present invention relates to overhead type multiple tuned mass dampers damping devices, belong to amping device technical field.
Background technology
Earthquake disaster have it is sudden and crushing, seriously threaten the safety of life and property of the mankind.Porcelain knob type is electrical
Equipment is applied widely in the power system, and with the development of power industry, the grade of power transmission and transforming equipment is higher and higher,
High pressure porcelain knob type electrical equipment especially superhigh voltage DC power transmission and transforming equipment increasingly with it is fine and soft, top quality is increasing, right
The requirement higher of its anti-seismic performance.Porcelain knob type electrical equipment earthquake is very serious in all previous macroseism both domestic and external, it is ensured that porcelain knob
Type electrical equipment is worked normally under geological process to ensureing that safe operation of power system is most important.
Damage type in porcelain knob type electrical equipment earthquake is mainly insulator end oil leak and breaks.For this case
Problem, lot of domestic and international scholar take different measures to improve its anti-seismic performance.Some by bracing wire reinforce etc. measures come
Lateral rigidity is improved, some replaces traditional ceramic material, some that metal damping is arranged at lower bracket using composite material
Device etc. is also had come the seismic energy that dissipates and using base isolation technology input earthquake is isolated with porcelain knob type electrical equipment.
Tuned mass damper (TMD) is a kind of passive seismic control device being widely used in civil engineering structure, it
The acceleration of the lower porcelain knob type electrical equipment of earthquake motion effect according to the seismic calamity of porcelain knob type electrical equipment, can be reduced and root is answered
Power is reacted.
TMD is made of quality system, spring system and damping system.When earthquake occurs, controlled device is acted in earthquake
Start to vibrate under, the vibration of controlled device drives TMD systems to vibrate jointly, because being that elasticity connects between TMD and controlled device
It connects, relative motion is will produce between TMD and controlled device, if the porcelain knob type electricity that the TMD natural frequencies of vibration are adjusted to and are controlled
Desired value (exact value can be determined by theoretical calculation) similar in the gas equipment natural frequency of vibration, TMD will be supplied to equipment one
A power opposite with equipment inertia force direction always also just reduces to reduce the amplitude for acting on the resultant force in equipment
The dynamic response of equipment when earthquake motion acts on.It from the perspective of energy consumption, sets and damps to TMD, dissipate ground by the movement of TMD
Ground passes to the energy of equipment when shake occurs, and the consumption of energy is focused in TMD devices, this reduces equipment institutes itself
The energy absorbed is needed, the damage that equipment itself is likely to occur is alleviated, to achieve the purpose that mitigate equipment earthquake.
The advantages of concrete analysis present invention is compared with traditional porcelain column type electrical equipment shock-dampening method below.Existing method is main
There are stay-supported shock-dampening method, metal damper shock-dampening method, base isolation technical shock method, insulated full-enclosed formula combined electrical apparatus
Power distribution equipment shock-dampening method, multiple ring type tuned mass damper damping device.
(1) stay-supported shock-dampening method：This method is static(al) method for strengthening.By increasing superfluous constraint water is resisted to improve equipment
The ability of level land brisance.This method principle is simply clear, but this reinforcing mode is easy to fix in pull rod or bracing wire in earthquake
Position is damaged, and forms new weak link, simultaneously as the requirement of the mounting means and electric insulation of bracing wire, this method pair
Space requirement is big.
(2) lead alloy damper shock-dampening method：By installing metal damping shock absorber, changes the frequency of equipment, increases
The damping of equipment reduces the earthquake response of equipment.This method has some applications at home at present, and Zhang Xuesong is in article《Installation
The 220kV breaker shaketalle tests of NEW Pb damper》Give the shaketalle test result of this damper, the results showed that
Novel lead alloy damper can reduce acceleration and displacement at the top of breaker, and bottom porcelain bushing shell maximum strain can be reduced
50% or more.This two class of Near-field ground motion of this method for the abundant earthquake motion of long period ingredient and containing velocity pulse is special
The damping effect of earthquake motion is relatively weak.
(3) laminated rubber damping bearing shock-dampening method：By change equipment supporting condition, extend the natural vibration period of equipment,
The predominant period section for avoiding earthquake motion to reduce dynamic response of the top equipment under earthquake motion effect, while can also lead to
It crosses the measures such as increase lead for retractable pencil and carrys out dissipation energy.This method has a large amount of application example, technology maturation damping effect in different field
Also very well, but this method has the following disadvantages, is that rubber is easy to aging first, followed by base isolation would generally increase shock insulation branch
The absolute displacement reaction of seat top equipment, most porcelain knob type electrical equipment upper ends have conducting wire connection, the increase of displacement to hold
Easily occur equipment because conducting wire pulls destroy the case where, third is shock isolating pedestal not tension, even if not considering laminated rubber shock insulation
The both of the aforesaid disadvantage of bearing shock-dampening method, this method are generally also only used for substrate and do not occur the transformer top set of tensile stress
Pipe damping is difficult to apply to be directly installed on the damping of the porcelain knobs type electrical equipment such as the large-scale current transformer on ground, arrester.
(4) Friction pendulum system shock-dampening method：By changing equipment supporting condition, extends the natural vibration period of equipment, avoid ground
The predominant period section of vibrations is to reduce the dynamic response of equipment.Friction-pendulum shock-insulation support combines the general of sliding bearing and pendular motion
It reads, the Friction dissipation for mainly being determined by the geometric parameter put using the frequency of system after earthquake isolating equipment while passing through sliding surface
Energy.Friction-pendulum shock-insulation device has a large amount of application in building field, but in the damping of porcelain knob type electrical equipment application also
There are problems that, one is increased top equipment displacement, second is that this shock isolating pedestal not tension.
(5) totally enclosed type combined electrical apparatus power distribution equipment (GIS) shock-dampening method:Different from ordinary distribution device, GIS will be breaking
Device, disconnecting switch, quick or the elements such as earthing switch, current transformer, arrester, busbar are added by closed composition at a slow speed
In the storehouse of the SF6 gases full of certain pressure, electric insulation can rely on SF6 gases in storehouse to ensure that SF6 gases are simultaneously
Also play arc-extinguishing medium.There are many superiority of this method, and floor space is small, and equipment arranges that center of gravity is low, at home and abroad also answers
It is more and more.But GIS up-front investments are big, are 30-40 times of distributing element investment；And GIS combination electric appliance once occurs
Failure, consequence is seriously much than open type substation；Meanwhile the leakage of sulfur tetrafluoride gas will also result in corresponding environment etc.
Problem.
(6) the multiple ring type tuned mass damper damping device (patent No.：ZL 2015 2 0260800.7)：This method
Using tuned mass damper principle, have the advantages that it is at low cost, small to space requirement, be substantially not present problem of aging.But
The deformable range of ring type spring used by this method is relatively small, insufficient to special violent earthquake safety margin.
Invention content
The present invention is to solve problems of the prior art, it is proposed that overhead type multiple tuned mass dampers damping fills
It sets, the technical solution taken is as follows：
The damping device includes support device, quality device and stiffness means；The support device includes perpendicular 1 He of support group
N layers of horizontal stand 2；The quality device includes N pieces of mass block 3, wherein N is positive integer；The mass block 3 is filled by rigidity
It sets and is fixedly installed in support device.
Preferably, the N layers of horizontal stand 2 and N pieces of mass block 3 correspond, and mass block 3 is positioned over horizontal stand
The center of 2 upper surfaces.
Preferably, the support device further includes nut 4, bolt 5 and gasket 6；6 groups of the nut 4, bolt 5 and gasket
Conjunction is installed on perpendicular 1 bottom end of support group.
Preferably, the horizontal stand 2 uses cruciform plan holder, four vertex point of the cruciform plan holder
It Gu Ding not be welded in each perpendicular support of perpendicular support group 1.
Preferably, each perpendicular support of the 2 place plane of the horizontal stand perpendicular to perpendicular support group 1.
Preferably, it is mutually parallel between the N layers of horizontal stand 2.
Preferably, the stiffness means include eyenut 7 and tension spring 8；One end of the tension spring 8 passes through eyenut 7
It is fixedly installed in the perpendicular support of perpendicular support group 1, the other end is fixedly installed in by eyenut 7 on mass block 3.
Preferably, the tension spring 8 is parallel to 2 place plane of horizontal stand.
Preferably, the tension spring 8 is in open configuration.
Preferably, the mass ratio of the mass block 3 ranging from 1%-100%, it is even higher, it does not need to be limited to traditional meaning
In justice 5% within, it is contemplated that the characteristics of this class equipment, the quality of quality loop can be adjusted according to shock attenuation needs.Wherein, matter
Amount is than the porcelain knob type electrical equipment mass ratio for damping device with the installation damping device.
Advantageous effect of the present invention：
(1), the present invention can be used for macrocyclic equipment damping.With the increase of natural vibration period, mass block is in damping
Required stroke of motion can be at a square times increase.The movable stroke of oscillator all very littles of existing same device, are difficult to
Natural vibration period is more than the equipment damping of 0.2s, and in earthquake, the earthquake of macrocyclic electrical equipment is far above short-period electricity
Gas equipment.The shock attenuation needs higher of long period equipment, but without corresponding cushion technique, macrocyclic set may be implemented in the present invention
Standby damping.
(2), the mass ratio of mass block is not limited within traditional 5%, can increase to 100%, big mass ratio
The significant effect in terms of increasing damping rate, meanwhile, big mass ratio can increase damping effect to the stability that differently shakes.
(3), the present invention has a comparable safety margin to macroseism, the earthquake ground motion acceleration peak value of input 0.25g,
When 0.50g and 1.0g, damping effect kept stable of the invention.
(4), damping effect is apparent, and (quality 960kg, the single order natural frequency of vibration are by taking the current transformer of certain 220kV as an example
5Hz), 50% when the present invention for accounting for equipment quality 6% can averagely reduce peak displacement and peak accelerator to without control；
(5), small to space and displacement request, it is small to being interfered by damping electrical equipment, it is substantially not present problem of aging.
Description of the drawings
Fig. 1 is damping device overall structure diagram of the present invention；
Fig. 2 is support device isometric drawing of the present invention；
Fig. 3 is that stiffness means of the present invention connect isometric drawing with mass block；
Fig. 4 is that stiffness means of the present invention connect vertical view with mass block；
Fig. 5 is stiffness means of the present invention and support device connection diagram；
Fig. 6 is support device of the present invention and electrical equipment joint detail figure；
Fig. 7 is enlarged drawing at A in Fig. 6；
(1, erect support group；2, horizontal stand；3, mass block；4, nut；5, bolt；6, gasket；7, eyenut；8 tension springs).
Specific implementation mode
With reference to specific embodiment, the present invention will be further described, but the present invention should not be limited by the examples.
Overhead type multiple tuned mass dampers damping device is installed on the lifting ring position at the top of porcelain knob type electrical equipment,
To reduce the dynamic response of the lower porcelain knob type electrical equipment of earthquake motion effect.
The damping device includes support device, quality device and stiffness means；The support device includes perpendicular support group 1 and N
Layer horizontal stand 2；Quality device includes N pieces of mass block 3, wherein and N is positive integer, and mass block 3 is not limited to a kind of shape,
Its shape can change according to the practical application of damping device；Mass block 3 is fixedly installed in by stiffness means in support device.
N layers of horizontal stand 2 and N pieces of mass block 3 correspond, and mass block 3 is positioned over the center of 2 upper surface of horizontal stand.
Support device further includes nut 4, bolt 5 and gasket 6；Nut 4, bolt 5 and the combination of gasket 6 are installed on perpendicular 1 bottom end of support group, realize
Support device is connect with hoisting ring at the top of porcelain knob type electrical equipment.Horizontal stand 2 uses cruciform plan holder, the cross
Fixation is welded in each perpendicular support of perpendicular support group 1 respectively on four vertex of planar bracket, and place plane is perpendicular to each of perpendicular support group 1
Perpendicular support, and be mutually parallel between every layer of holder of N layers of horizontal stand 2.Stiffness means include eyenut 7 and tension spring 8；Tension spring
8 one end is fixedly installed in by eyenut 7 in the perpendicular support of perpendicular support group 1, and the other end is fixedly installed in matter by eyenut 7
On gauge block 3.Tension spring 8 is parallel to 2 place plane of horizontal stand, and tension spring 8 carries out pre- tensioning when mounted so that tension spring 8 is in earthquake
The used time is acted always in tension state.The mass ratio that mass block 3 accounts for equipment quality is not limited to traditional 5% hereinafter, according to subtracting
Shake needs, and can improve to 100%, even higher.
The control to single order or multistage tuned mass damper (TMD) may be implemented in this damping device, wherein exponent number with
The piece number N of mass block 3 is corresponded, and each mass block 3 forms a TMD with corresponding tension spring 8, is controlled same or different is shaken
Type；Mass block 3 applies the power opposite with equipment level acceleration of motion direction to support device by squeezing tension spring 8, reduces porcelain
The dynamic response of column type equipment achievees the purpose that mitigate porcelain knob type electrical equipment earthquake.According to《Building aseismicity specification》GB50011
Determine the seismic fortification intensity of equipment operating area, the quality of connexus gauge block 3 and the corresponding frequency values of the controlled vibration shape can
To determine 8 required rigidity of the required stroke of support device and tension spring.The major frequency components of earthquake motion are in 1-10Hz
Between, there is certain frequency bandwidth, at the same time, the vibration of porcelain knob type electrical equipment is multistage modes coupling as a result, therefore
Multiple TMD is used, each mass block and corresponding spring are equivalent to a certain frequency band model of an independent TMD control device
Enclose, multiple TMD collective effects to realize the control to more broad frequency range, multiple TMD with reducing damping effect over the ground
The sensitivity of the frequency spectrum difference of vibrations, increases the stability of damping.
The realization of damping device control frequency can be realized by following approach：(1) mass conservation of mass block 3 is kept,
Change the parameter of tension spring 8 to realize control of the damping device to different frequency, that is, adapts to the earthquake of different vibration frequencies and type；
(2) 8 parameter constant of tension spring is kept, changes the quality of mass block 3 to realize control of the damping device to different frequency, that is, adapts to not
With the earthquake of vibration frequency and type, wherein the damping effect of approach (1) is better than approach (2).
The damping device is mainly characterized by：Especially suitable for long period equipment, damping effect stabilization, the interference to equipment
It is small, non-aging, at low cost.It is compared with bracing wire reinforcement means, the present invention is small to space requirement, will not form new weak point
Position；It is compared with metal damping shock absorption method, the present invention is more preferable for different type earthquake dynamic stability；In addition, being different from base
The absolute displacement that plinth shock insulation sacrifices shock isolating pedestal top equipment connects to reduce peak accelerator, insulator root and the flange of equipment
Peak stress at conjunction, the present invention can be realized simultaneously the reduction to peak accelerator and peak displacement, and applicable porcelain knob
Type electrical equipment type is also more extensive；With multiple ring type tuned mass damper damping device, oscillator of the invention it is deformable
Ability significantly improves, the damping especially suitable for long period equipment.
Frequency is controlled according to three ranks of the frequency values tuning present invention of test gained, it is contemplated that engineering is practical, when damping fills
Mass ratio is set when within 10%, the present invention recommends 1.0,0.8,0.6 times of the control device single order natural frequency of vibration；Work as damping device
For mass ratio at 50%, the present invention recommends 0.7,0.5,0.3 times of the control device single order natural frequency of vibration；When damping device mass ratio
At 100%, the present invention recommends 0.4,0.3,0.2 times of the control device single order natural frequency of vibration；It, can be with when mass ratio is among this
It is obtained using linear interpolation method.
For this damping device, the current transformer for having chosen the 220kV of certain producer production carries out finite element damping simulation,
Input 8 more representational earthquake motion (El Centro, Northridge, Kobe, Loma Prieta, Victoria
Mexico, Ji Ji, Wolong, artificial earthquake motion) carry out Dynamic time history analysis.Finite element result shows that (1), the present invention are suitable for
The damping of macrocyclic electrical equipment；(2), damping effect of the invention is good, accounts for this hair of porcelain knob type electrical equipment quality 6%
Bright peak displacement and the peak accelerator of can averagely reducing is to without 50% when controlling；(3), the present invention has enough peaces to macroseism
Full nargin, for the earthquake ground motion acceleration peak value of input in 0.25g, 0.50g and 1.0g, damping effect of the invention keeps steady substantially
It is fixed.
Physical model is machined for the present invention, it is extensive in China Seismological Bureau Engineering Mechanical Institute on July 15th, 2015
First seismic experiment room has carried out shaketalle test, and experiment shows that present apparatus damping effect is good, can be used for long period equipment and subtracts
Shake.
Embodiment 1：
It elaborates to damping device of the present invention in conjunction with Fig. 1 to Fig. 7.
The damping device includes support device, quality device and stiffness means；The support device includes perpendicular support group 1 and 3
Layer horizontal stand 2, wherein perpendicular support group 1 includes four perpendicular supports；Quality device includes 3 pieces of mass blocks 3.Mass block 3 is cylinder,
Mass block 3 is fixedly installed in by stiffness means in support device.One piece of mass block 3 is all placed on every layer of horizontal stand 2, and
Mass block 3 is positioned over the center of 2 upper surface of horizontal stand.Support device further includes nut 4, bolt 5 and gasket 6；Nut
4, bolt 5 and the combination of gasket 6 are installed on perpendicular 1 bottom end of support group, realize that support device connects with hoisting ring at the top of porcelain knob type electrical equipment
It connects.Horizontal stand 2 uses cruciform plan holder, and fixation is welded in perpendicular support respectively on four vertex of the cruciform plan holder
In each perpendicular support of group 1, where plane perpendicular to each perpendicular support of perpendicular support group 1, and three layers of holder of 3 layers of horizontal stand 2 are mutual
It is parallel.Stiffness means include eyenut 7 and four tension springs 8；One end of a piece tension spring 8 is fixedly installed in by eyenut 7
In corresponding one perpendicular support, the other end is fixedly installed in by eyenut 7 on mass block 3.Four tension springs 8 are each parallel to level
2 place plane of holder, tension spring 8 carry out pre- tensioning when mounted so that tension spring 8 is in tension shape when earthquake motion acts on always
State.The mass ratio that mass block 3 accounts for equipment quality is 6%.
Although the present invention is disclosed as above with preferred embodiment, it is not limited to the present invention, any to be familiar with this
The people of technology can do various changes and modification, therefore the protection of the present invention without departing from the spirit and scope of the present invention
Range should be subject to what claims were defined.
Claims (8)
1. overhead type multiple tuned mass dampers damping device, which is characterized in that the damping device includes support device, matter
Measure device and stiffness means；The support device includes perpendicular support group (1) and N layers of horizontal stand (2)；The quality device includes N
Piece mass block (3), wherein N is positive integer；The mass block (3) is fixedly installed in by stiffness means in support device；It is described
Stiffness means include eyenut (7) and tension spring (8)；One end of the tension spring (8) is fixedly installed in perpendicular by eyenut (7)
In the perpendicular support of support group (1), the other end is fixedly installed in by eyenut (7) on mass block (3)；The mass block (3) with it is right
The tension spring (8) answered forms a tuned mass damper；The matter of the mass block (3) and the electrical equipment of installation quality block (3)
Measure ratio ranging from 6% -100%.
2. damping device according to claim 1, which is characterized in that the N layers of horizontal stand (2) and N pieces of mass block (3) one
One corresponds to, and mass block (3) is positioned over the center of horizontal stand (2) upper surface.
3. damping device according to claim 1, which is characterized in that the support device further includes nut (4), bolt (5)
With gasket (6)；The nut (4), bolt (5) and gasket (6) combination are installed on perpendicular support group (1) bottom end.
4. damping device according to claim 2, which is characterized in that the horizontal stand (2) uses cruciform plan holder,
Fixation is welded in each perpendicular support of perpendicular support group (1) respectively on four vertex of the cruciform plan holder.
5. damping device according to claim 2, which is characterized in that plane is perpendicular to perpendicular support where the horizontal stand (2)
Each perpendicular support of group (1).
6. damping device according to claim 2, which is characterized in that be mutually parallel between the N layers of horizontal stand (2).
7. damping device according to claim 1, which is characterized in that the tension spring (8) is put down where being parallel to horizontal stand (2)
Face.
8. damping device according to claim 1, which is characterized in that the tension spring (8) is in open configuration.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511027457.2A CN105422711B (en) | 2015-12-31 | 2015-12-31 | Overhead type multiple tuned mass dampers damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511027457.2A CN105422711B (en) | 2015-12-31 | 2015-12-31 | Overhead type multiple tuned mass dampers damping device |
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| CN105422711A CN105422711A (en) | 2016-03-23 |
| CN105422711B true CN105422711B (en) | 2018-08-17 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105934129B (en) * | 2016-06-02 | 2017-07-18 | 国网浙江永康市供电公司 | A kind of regulator cubicle for bearing superpower impact |
| CN109537969B (en) * | 2018-12-03 | 2020-05-12 | 海南泉业建筑工程有限公司 | Damping device for well-shaped building |
| CN109780114A (en) * | 2019-01-18 | 2019-05-21 | 上海材料研究所 | An Adaptive Horizontal Eddy Current Tuned Mass Damper |
| CN110594352B (en) * | 2019-10-07 | 2021-05-04 | 诸暨市奔宝弹簧有限公司 | Vehicle shock absorber |
| CN110939673B (en) * | 2019-12-04 | 2021-10-08 | 上海大学 | A Nonlinear Vibration Damping Device Coupled with Segmental Stiffness |
| CN112227181B (en) * | 2020-10-20 | 2022-06-14 | 精易建工集团有限公司 | Shock absorption structure for bridge and use method thereof |
| CN113108013A (en) * | 2021-04-19 | 2021-07-13 | 浙江世仓智能仓储设备有限公司 | Shock absorption device and method for goods shelf |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH11200660A (en) * | 1998-01-13 | 1999-07-27 | Tatsuji Ishimaru | Structure damping structure |
| CN102425244A (en) * | 2011-10-19 | 2012-04-25 | 沈阳建筑大学 | Multidirectional multi-frequency tuned mass damper |
| CN103557266A (en) * | 2013-10-25 | 2014-02-05 | 同济大学 | Multilayer spherical container damper |
| CN104790554B (en) * | 2015-04-27 | 2017-02-01 | 中国地震局工程力学研究所 | Three-direction multiple annular type tuned mass damper damping device |
| CN205298370U (en) * | 2015-12-31 | 2016-06-08 | 中国地震局工程力学研究所 | Multiple harmonious mass damper damping device of overhead type |
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