CN107558786B - A kind of collaboration of spring damping is every vibration damping/shake device - Google Patents
A kind of collaboration of spring damping is every vibration damping/shake device Download PDFInfo
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- CN107558786B CN107558786B CN201710757165.7A CN201710757165A CN107558786B CN 107558786 B CN107558786 B CN 107558786B CN 201710757165 A CN201710757165 A CN 201710757165A CN 107558786 B CN107558786 B CN 107558786B
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Abstract
The present invention provides a kind of collaborations of spring damping every vibration damping/shake device, including upper steel plate and lower steel plate, the helical spring being clipped between steel plate, the hangnail type viscoplasticity cylinder damper being placed in helical spring, hangnail type viscoplasticity cylinder damper includes the upper inner sleeve fixed with upper steel plate, coaxial sleeve holds inner sleeve and lower outer sleeve, the visco-elastic damping layer being folded between lower inner sleeve and lower outer sleeve, along position control plate of the section clip in lower inner sleeve, the outer diameter of upper inner sleeve is less than the internal diameter of lower inner sleeve, and the bottom end inner circumferential of upper inner sleeve be equipped with tiltedly it is upper stretch out on set hangnail, the top periphery of lower inner sleeve is equipped with the underlying hangnail stretched out obliquely downward, after being slided in the downward inner sleeve of upper inner sleeve, on, underlying hangnail snap-lock, the bottom surface of inner sleeve is resisted against on position control plate.The present invention, which is devised, bears the complete spring damping cooperative operation system vertically motivated suitable for vertical load-carrying members, solves the problems, such as system low resistance, plays excellent vibration isolation, damping effect.
Description
Technical field
The present invention relates to a kind of structural vibration control devices, and in particular to one kind is vertically every vibration damping/shake device.
Background technique
Structural vibration control is a kind of novel antivibration/shake measure, it be by be arranged in the structure vibration damping/shake or every
Vibration/shake device consumes or is isolated vibration/vibration energy, or the energy outside applying is to offset external drive to the work of structure
With.Every a kind of common form of the vibration damping/shake device as passive vibration control, have construction relatively easy, be not necessarily to manual intervention,
The advantages of strong robustness and stability and be widely used.
In building vibration control field, vertical vibration isolation is always insoluble problem.In design specification, routine building
Vertical Earthquake Loads can not be considered under common earthquake, but for skyscraper, large-span structure, Important building facility and moulding
Irregular structure, it is necessary to consider Vertical Earthquake Loads.Urban track traffic simultaneously flourishes, high-speed railway, subterranean railway
Etc. large area build, what is produced cannot be neglected traffic loading.Different from geological process, traffic loading is mainly perpendicular with duration
Based on power excitation, producing very important vibration to adjacent building influences, and causes comfort level to reduce, influences sensing instrument
Performance simultaneously produces ancient building urgently to be resolved at adverse effect, vertical motion control problem.Currently used rubber vibration isolation/shake is folded
Vertical vibration isolation/shock stability of layer support is far below horizontal direction vibration isolation/shock stability, it is difficult to meet effective vertical vibration in practical structures
Dynamic control；Helical spring vibrating isolation system is easier to obtain lower vertical rigidity and has preferably vertical vibration isolation performance relatively, but
Helical spring vibrating isolation system working condition lower aprons linear elasticity, itself does not have any damping characteristic, it is meant that it can not dissipate
Energy.There is scholar to propose that adding viscous damping improves the damping characteristic of helical spring vibrating isolation system, but viscous damping is mostly liquid,
There are larger problems for leakproofness, and performance is unstable.In addition, there is also wave effect problem for helical spring vibrating isolation system.
Viscoelastic material is that a kind of highly effective highly energy-consuming damping material exists simultaneously elasticity under external force
With sticky two kinds of mechanical characteristics, higher damping is all had in wider frequency range and there is rigidity.It is led in vibration control
In domain, usually using the reciprocal shear-deformable of viscoelastic material, vibrational energy is dissipated in the form of material thermal energy, so that knot
Structure damping increases.Viscoelastic material increases energy dissipation capacity for helical spring vibrating isolation system and provides new approaches, solves viscous resistance
The unstable problem of Buddhist nun's leakproofness difference performance, but head is also needed since building vertical vibration isolation/shake mechanism will not only bear dynamic load
First meet dead load (such as structural weight per square meter), viscoelastic material bears deformation for a long time under static load and tearing is easy to cause to fall off, shadow
Ring structural behaviour.Most of device fails under consideration actual working state, and the Static Correction that building static load generates is to viscoelastic material
The adverse effect of deformation.
Summary of the invention
Goal of the invention: in view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of collaboration of spring damping every subtracting
Viscoelastic damping is applied to helical spring vibrating isolation system, and designs static load dynamic load double work mechanism by vibration/shake device, is realized high
The vertical vibration isolation of effect, energy consumption.
Technical solution: the present invention provides a kind of collaborations of spring damping every vibration damping/shake device, including horizontally disposed upper steel
Plate and lower steel plate, the helical spring being vertically clipped between lower steel plate, the coaxial hangnail type viscoplasticity being placed in helical spring
Cylinder damper, the hangnail type viscoplasticity cylinder damper include holding with upper inner sleeve, the coaxial sleeve of upper steel plate fixation
Inner sleeve and lower outer sleeve, the visco-elastic damping layer being folded between lower inner sleeve and lower outer sleeve, along section clip in lower interior
The bottom of position control plate in sleeve, the lower outer sleeve is fixed on lower steel plate；
Wherein, the outer diameter of the upper inner sleeve is less than the internal diameter of lower inner sleeve, and the bottom end inner circumferential of the upper inner sleeve is set
Have tiltedly it is upper stretch out on set hangnail, the top periphery of the lower inner sleeve is equipped with the underlying hangnail stretched out obliquely downward, when upper inner sleeve
After sliding in downward inner sleeve, hangnail snap-lock is set above and below, the bottom surface of upper inner sleeve is resisted against on position control plate.
Further, in the high temperature vulcanized gap between lower inner sleeve and lower outer sleeve of the visco-elastic damping layer.
Further, corresponding upper and lower screw shell is respectively fixed in the opposed faces of the upper and lower steel plate, it is described upper and lower
Screw shell is equipped with screw thread in the inner circumferential close to upper and lower steel plate one end, and the internal diameter of the other end is greater than bottom diameter, each pair of upper and lower
It is screwed for a helical spring in wherein between screw shell.
In order to which there are the free working deformations that enough working spaces guarantee helical spring, between the upper and lower screw shell
Distance be not less than every vibration damping/shake device top controlled structures maximum vertical compressive deformation.
In order to guarantee that hangnail type viscoplasticity cylinder damper plays the role of guide rod, the hangnail type viscoelastic in spring inner
There are the gaps of 2 ~ 10mm between the periphery of property cylinder damper and the inner wall of helical spring.
In order to which there are certain relative motion space, the bottom end of the lower inner sleeve and visco-elastic damping layer is higher than lower outer sleeve
5 ~ 15mm of bottom end.
For the ease of after vibration damping/shake device is pressurized, upper inner sleeve can smoothly be displaced downwardly in lower inner sleeve and make two
It is wide to set hangnail section level on the outer diameter of the upper inner sleeve one smaller than the internal diameter of lower inner sleeve for the firm occlusion of the hangnail of person
Degree is 2 ~ 5mm.
In order to realize multidimensional every vibration damping, the lower steel plate can also be connected with horizontal isolation mounting.
Further, the upper inner sleeve has elastic restoring force or uniformly opens up notch along axial direction.
Further, it sets hangnail and underlying hangnail on described to be made of high-strength endurance material, such as high-strength alloy steel.On described
The section for setting hangnail and underlying hangnail is corresponding obtuse triangle, and equal in magnitude, each side is parallel to each other.
The utility model has the advantages that apparatus of the present invention on the basis of helical spring vibrating isolation system, solve the problems, such as system low resistance, from
Big damping ratio, performance stabilization, good airproof performance, the angle selection visco-elastic damping material lifting device system consumption suitable for engineer application
Energy ability, and devise and bear the complete spring damping cooperative operation system vertically motivated suitable for vertical load-carrying members, it solves
System low resistance problem, plays excellent vibration isolation, damping effect, is embodied in the following aspects:
On the one hand, apparatus of the present invention, which are easier to obtain lesser vertical rigidity, reaches more preferably vertical vibration isolation effect, and adds
Viscoelastic damping have biggish damping ratio, cylinder damper have the bigger section of shear, to significantly improve device
Damping ratio so that device can vibration isolation but also vibration damping, while viscoelastic damping have excellent shear energy dissipation ability, have simultaneously
There are damping and rigidity, performance is more stable, and the problem bad there is no viscous damping leakproofness, is more suitable for engineer application.
On the other hand, consider helical spring, viscoelastic damping characteristic and the vertical carrying mechanism of building, devise corresponding complete
Whole helical spring damps cooperative operation system, and the barb structure design in damper realizes the double work mechanism of device: static(al)
Helical spring independent weight bearing under load, hangnail type viscoplasticity cylinder damper enters work shape inside helical spring under dynamic load
State and helical spring cooperate.On the one hand this design is more clear the working mechanism of device, on the other hand to hinder
Visco-elastic damping material stress in Buddhist nun's device is more reasonable, protects it under static load not by excessive deformation, and improve viscoplasticity
The tired stress performance of damping layer.
The third aspect, spiral spring connecting sleeve cylinder one end have screw thread, and the other end has bigger internal diameter and non-threaded, reality
Lower steel plate on helical spring and device is showed and has been linked as entirety, has been constrained since upper and lower ends exist, spiral shell can be increased under horizontal force
Spring lateral rigidity is revolved, be effectively improved helical spring vibrating isolation system waves effect problem.
Detailed description of the invention
Fig. 1 is the top view of apparatus of the present invention；
Fig. 2 is the diagrammatic cross-section of A-A section in Fig. 1；
Fig. 3 is the partial enlarged view of single group helical spring and hangnail type viscoplasticity cylinder damper；
Fig. 4 (a) (b) is hangnail type viscoplasticity cylinder damper operation schematic diagram；
Fig. 5 is that the present apparatus and horizontal vibration isolation/shake mechanism connect and compose multidimensional every vibration damping/shake structural schematic diagram.
Specific embodiment
Technical solution of the present invention is described in detail below, but protection scope of the present invention is not limited to the implementation
Example.
Embodiment: a kind of collaboration of spring damping is every vibration damping/shake device, and as shown in Figure 1, 2, including corresponding and level is set up and down
The upper steel plate 1 set and lower steel plate 2 and be uniformly distributed the several groups helical spring 3 being folded between upper and lower steel plate 1,2 and fall
Thorn type viscoplasticity cylinder damper 5.
The bottom surface of upper steel plate 1 is evenly distributed with screw shell 4 on several, if the top surface of lower steel plate 2 is also evenly distributed with
Dry lower screw shell 4 corresponding with upper 4 position of screw shell, upper and lower screw shell 4 are each comfortable close to upper and lower steel plate 1,2 one
The inner circumferential at end is equipped with screw thread, and the internal diameter of 4 other end of sleeve is bigger compared to bottom diameter and non-threaded, can increase spiral bullet
The lateral rigidity of spring 3.Be placed in one between each pair of upper and lower screw shell 4 for a helical spring 3, the both ends of helical spring 3 with
It is screwed fastening in upper and lower screw shell 4, to be connected to become entirety with upper and lower steel plate 1,2.Upper and lower screw shell 4
The distance between should and incorporation engineering specification practical according to specific engineering determine that no less than device top controlled structures are most
Big vertical compressive deformation, to guarantee that helical spring 3 has enough deformation operation spaces.
A hangnail type viscoplasticity cylinder damper 5, the resistance of hangnail type viscoplasticity cylinder are co-axially mounted in each helical spring 3
Buddhist nun's device 5 is made of bindiny mechanism and energy consuming mechanism, as shown in Figure 3.Bindiny mechanism includes being close to 1 bottom surface of upper steel plate and and upper steel plate
The 1 upper inner sleeve 7 for passing through the fixed upper junction plate 6 of bolt 14, being fixed on 6 bottom surface of upper junction plate, energy consuming mechanism includes coaxial sleeve
Hold inner sleeve 11 and lower outer sleeve 12 and the high temperature vulcanized viscoplasticity resistance between lower inner sleeve 11 and lower outer sleeve 12
The bottom of Buddhist nun's layer 13, lower outer sleeve 12 is fixed on lower steel plate 2 by bolt 14.Outside hangnail type viscoplasticity cylinder damper 5
There are the gaps of 2 ~ 10mm between week and the inner wall of helical spring 3.The inner wall of lower inner sleeve 11 is reserved with card slot, position control plate
10 insertion card slots can be fixed in lower inner sleeve 11 along section, that is, horizontal direction of lower inner sleeve 11.
Wherein, the bottom periphery of upper inner sleeve 7 be evenly equipped with tiltedly it is upper stretch out on set hangnail 8, in the top of lower inner sleeve 11
Week is corresponding equipped with the underlying hangnail 9 stretched out obliquely downward, specifically, on set the section of hangnail 8 and underlying hangnail 9 as corresponding obtuse angle
Triangle, equal in magnitude, each side is parallel to each other.In addition, being set on the outer diameter of upper inner sleeve 7 one smaller than the internal diameter of lower inner sleeve 11
8 section horizontal width of hangnail, about 2 ~ 5mm.When upper steel plate 1 is pressurized, inner sleeve 7 is downwardly into lower inner sleeve 11 in drive, on
It sets and generates relative displacement between hangnail 8 and underlying hangnail 9, so that setting 9 snap-lock of hangnail, tight between upper and lower hangnail above and below.
The position of position control plate 10 should be determined according to the displacement that practical structures can generate under action of static load, so that upper inner sleeve 7
Position control plate 10 is just abutted against under action of static load, as shown in Figure 4 (a).Lower inner sleeve 11 and visco-elastic damping layer 13
Bottom end is higher than 5 ~ 15mm of bottom end of lower outer sleeve 12, so that the oriented lower stress space of lower inner sleeve 11, with viscoelastic damping
Layer 13 generates relative displacement, realizes visco-elastic damping material shear energy dissipation, as shown in Figure 4 (b).
Set in hangnail type viscoplasticity cylinder damper 5 hangnail 8 and underlying hangnail 9 design according to the actual situation circle number and
Away from while in view of for a long time by dynamic loading, it is proposed that use high-strength endurance material support hangnail, while hangnail should with it is upper
Inner sleeve 7 has firm connection.In addition, upper inner sleeve 7 should have good elastic restoring force, during hangnail occlusion,
Barb structure is gradually squeezed along parallel inclined-plane until hangnail wedge angle is opposite, and generation maximum displacement deformation, continues in pushing at this time
Setting hangnail will stick into below underlying hangnail, parallel in the same size due to above setting hangnail and underlying hangnail section, and occlusion squeezes at this time
Power is reduced to zero, the be squeezed elastic displacement deformation of generation of upper inner sleeve 7 will then revert to initial position, the above inner sleeve 7
Material should have both good flexibility and elastic recovery, it is also contemplated that being slotted at a certain distance using length direction along longitudinal direction
The methods of, it improves its performance, main purpose is to reduce the ring side rigidity of upper inner sleeve 7 but do not reduce its tension ability.
As long as in addition, apparatus of the present invention are controlled for vertical motion, but can be made up of the horizontal isolation mounting 16 of connection more
Dimension is every vibration damping/shake device, and such as schematic diagram 5, this is also feasible in practical projects.
The working principle of the present embodiment device includes the following aspects:
Apparatus of the present invention are constituted by helical spring 3 is in parallel with hangnail type viscoplasticity cylinder damper 5, from overall performance
It says, there is helical spring 3 lesser vertical rigidity can obtain more preferably vibration isolating effect, hangnail type viscoplasticity cylinder damper 5
Big damping is provided, device damping ratio is improved, realizes that dissipation energy reduces vibration.Meanwhile hangnail type viscoplasticity cylinder damper 5
Setting so that device is more suitable vertical carrying mechanism, not only met structural bearing requirement, but also realize the lower resistance of power excitation
The requirement of Buddhist nun's device efficient operation.
When device is placed in structural base, certain Static Correction will be generated under dead load effect, this part of static load
By 3 alone bear of helical spring, helical spring 3 will also generate corresponding displacement deformation for effect.Falling inside helical spring 3 at this time
The upper part connecting mechanism and lower part energy consuming mechanism of thorn type viscoplasticity cylinder damper 5 become hangnail from the initial state that is kept completely separate
Intersect fastening state namely upper part connecting mechanism to move down under erect static load effect, above sets hangnail 8 and be snapped into lower part hangnail completely
9, while 7 lower end of upper inner sleeve just resists position control plate 10.Stable state of the device under static load at this time.
There are when vertical motion external excitation (such as rail traffic excitation, seismic stimulation, etc.), device will enter under dynamic load
Working condition.Since the upper part connecting mechanism and lower part energy consuming mechanism of hangnail type viscoplasticity cylinder damper 5 are connected to become one
Common tension is pressurized by a entirety, helical spring 3 and hangnail type viscoplasticity cylinder damper 5, cooperates.When external excitation be to
On pulling force when, due to the fundamental characteristics of barb structure, the barb structure of engaging will drive lower inner sleeve to move upwards, viscoplasticity
Damping layer 13 will generate relative displacement, passive energy dissipation with lower inner sleeve 11, lower outer sleeve 12.When external excitation is downward pressure
When, since upper inner sleeve 7 has resisted position control plate 10, constraint lives in set moving downward for hangnail 8, passes through position control plate
10 drive lower inner sleeve 11 to move downward, and visco-elastic damping layer 13 will generate relative displacement with lower inner sleeve 11, lower outer sleeve 12,
Passive energy dissipation.The design of the present apparatus ensure that its damping so that visco-elastic damping layer only generates relative deformation under power excitation
Performance also protects it not generate excessive deformation under static load and avoids its tearing disengagement while realizing passive energy dissipation purpose, more
It is suitable for vertical motion control.
Claims (10)
1. a kind of collaboration of spring damping is every vibration damping/shake device, it is characterised in that: including horizontally disposed upper steel plate and lower steel plate,
The hangnail type viscoplasticity cylinder damper for being vertically clipped on the helical spring between lower steel plate, being coaxially placed in helical spring,
The hangnail type viscoplasticity cylinder damper includes that the upper inner sleeve fixed with upper steel plate, coaxial sleeve hold inner sleeve and lower outer
Sleeve, the visco-elastic damping layer being folded between lower inner sleeve and lower outer sleeve, the position along section clip in lower inner sleeve
The bottom of control panel, the lower outer sleeve is fixed on lower steel plate；
Wherein, the outer diameter of the upper inner sleeve is less than the internal diameter of lower inner sleeve, and the bottom end inner circumferential of the upper inner sleeve is equipped with tiltedly
Hangnail is set in upper stretching, the top periphery of the lower inner sleeve is equipped with the underlying hangnail stretched out obliquely downward, when upper inner sleeve is downward
After sliding in inner sleeve, hangnail snap-lock is set above and below, the bottom surface of upper inner sleeve is resisted against on position control plate.
2. spring damping collaboration according to claim 1 is every vibration damping/shake device, it is characterised in that: the viscoelastic damping
In the high temperature vulcanized gap between lower inner sleeve and lower outer sleeve of layer.
3. spring damping collaboration according to claim 1 is every vibration damping/shake device, it is characterised in that: the upper and lower steel plate
Corresponding upper and lower screw shell is respectively fixed in opposed faces, the upper and lower screw shell is each comfortable close to upper and lower steel plate one
The inner circumferential at end is equipped with screw thread, and the internal diameter of the other end is greater than bottom diameter, supplies a helical spring between each pair of upper and lower screw shell
It screws in wherein.
4. spring damping collaboration according to claim 3 is every vibration damping/shake device, it is characterised in that: the upper and lower thread bush
The distance between cylinder is not less than every vibration damping/shake device top controlled structures maximum vertical compressive deformation.
5. spring damping collaboration according to claim 1 is every vibration damping/shake device, it is characterised in that: the hangnail type viscoelastic
There are the gaps of 2 ~ 10mm between the periphery of property cylinder damper and the inner wall of helical spring.
6. spring damping according to claim 1 collaboration is every vibration damping/shake device, it is characterised in that: the lower inner sleeve and
The bottom end of visco-elastic damping layer is higher than 5 ~ 15mm of bottom end of lower outer sleeve.
7. spring damping collaboration according to claim 1 is every vibration damping/shake device, it is characterised in that: the upper inner sleeve
Hangnail section horizontal width is set on outer diameter one smaller than the internal diameter of lower inner sleeve, is 2 ~ 5mm.
8. spring damping collaboration according to claim 1 is every vibration damping/shake device, it is characterised in that: the lower steel plate and water
Flat isolation mounting is connected.
9. spring damping collaboration according to claim 1 is every vibration damping/shake device, it is characterised in that: the upper inner sleeve tool
Flexible restoring force.
10. spring damping according to claim 1 collaboration is every vibration damping/shake device, it is characterised in that: set on described hangnail and
The section of underlying hangnail is corresponding obtuse triangle, and equal in magnitude, each side is parallel to each other.
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| CN201710757165.7A CN107558786B (en) | 2017-08-29 | 2017-08-29 | A kind of collaboration of spring damping is every vibration damping/shake device |
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| CN107558786B true CN107558786B (en) | 2019-03-12 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853772B (en) * | 2019-04-09 | 2023-09-22 | 安徽理工大学 | Self-resetting mild steel damper |
| CN110565859B (en) * | 2019-10-30 | 2024-06-21 | 青岛理工大学 | Energy dissipation vibration reduction supporting rod and chord support combined floor supported by same |
| CN111677143A (en) * | 2020-07-10 | 2020-09-18 | 宁波东衡工程科技发展有限公司 | Vertical vibration damper for vibration isolation building |
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| CN201835397U (en) * | 2010-08-26 | 2011-05-18 | 北京市建筑设计研究院 | TMD (tuned mass damper) device |
| CN205035929U (en) * | 2015-09-28 | 2016-02-17 | 武汉斯坦迪减振技术有限公司 | But frequency continuous variation's harmonious mass damper structure |
| CN105839806A (en) * | 2016-04-01 | 2016-08-10 | 东南大学 | Viscoelastic vibration reduction and isolation device provided with belleville springs |
| CN106812227A (en) * | 2017-03-23 | 2017-06-09 | 南通市苏东钢结构有限公司 | One kind classification is every damper |
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|---|---|---|---|---|
| JPH1150695A (en) * | 1997-08-01 | 1999-02-23 | Taisei Corp | Base isolating mechanism for stairs in base isolation structure |
| CN1448597A (en) * | 2003-05-01 | 2003-10-15 | 东南大学 | Engineering structure multidimensional damping device |
| CN1718962A (en) * | 2005-07-01 | 2006-01-11 | 河北理工大学 | Tridimensional vibration isolation device |
| CN201835397U (en) * | 2010-08-26 | 2011-05-18 | 北京市建筑设计研究院 | TMD (tuned mass damper) device |
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