CN106704761A - Multi-dimensional viscoelastic vibration isolation and reduction device for pipeline structure - Google Patents

Multi-dimensional viscoelastic vibration isolation and reduction device for pipeline structure Download PDF

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Publication number
CN106704761A
CN106704761A CN201710053776.3A CN201710053776A CN106704761A CN 106704761 A CN106704761 A CN 106704761A CN 201710053776 A CN201710053776 A CN 201710053776A CN 106704761 A CN106704761 A CN 106704761A
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CN
China
Prior art keywords
steel plate
viscoplasticity
vibration
isolating suspension
additional
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710053776.3A
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Chinese (zh)
Inventor
徐赵东
苗安男
王军健
黄兴淮
王成
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Southeast University
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Southeast University
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Filing date
Publication date
Application filed by Southeast University filed Critical Southeast University
Priority to CN201710053776.3A priority Critical patent/CN106704761A/en
Publication of CN106704761A publication Critical patent/CN106704761A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression 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
    • F16F15/022Suppression 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 dampers and springs in combination
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression 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
    • F16F15/04Suppression 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
    • F16F15/08Suppression 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 with rubber springs ; with springs made of rubber and metal
    • F16F15/085Use of both rubber and metal springs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02Energy absorbers; Noise absorbers
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C2201/00Details, devices or methods not otherwise provided for
    • E03C2201/60Reducing noise in plumbing systems

Abstract

The invention discloses a multi-dimensional viscoelastic vibration isolation and reduction device for a pipeline structure. The device is composed of bolts (1), a viscoelastic vibration isolation support (2), an upper steel plate (4), prepressing springs (5), an additional steel plate (6), vibration dampers (7), a lower steel plate (8) and U-shaped springs (9), wherein the upper side and the lower side of the viscoelastic vibration isolation support (2) are provided with the upper steel plate (4) and the lower steel plate (8) correspondingly; the additional steel plate (6) is arranged on the upper steel plate (4); the multiple U-shaped springs (9) are arranged between the additional steel plate (6) and the lower steel plate (8); the upper steel plate (4) is connected with the additional steel plate (6) through the bolts (1); the prepressing springs (5) are arranged between the additional steel plate (6) and bolt caps of the bolts (1); and a through hole (3) is located in the middle of the vibration isolation and reduction device. The multi-dimensional viscoelastic vibration isolation and reduction device can isolate external excitation and meanwhile dissipate vibration energy and has the advantages of being good in energy consumption effect, simple in structure, low in manufacturing cost and convenient to construct.

Description

A kind of pipeline configuration multidimensional viscoplasticity is every vibration absorber
Technical field
The present invention is a kind of for the passive every vibration absorber of pipeline configuration, and especially a kind of multidimensional is every vibration absorber.
Background technology
With economic and society development, transport of the country to the energy proposes requirement higher, and pipeline transportation is used as one kind Extremely cost-effective means of transportation acquires a special sense.But, due to the influence of the factors such as water hammer and dynamic excitation, pipeline knot Structure is susceptible to vibration, gently then influences pipeline transportation efficiency, improves cost of transportation;It is heavy then cause work safety accident, influence people The security of the lives and property of the people.How effective control pipeline structural vibration, reduce its dynamic response, be an important research neck Domain.The structural vibration control mode of current generally existing is broadly divided into active, half active and passive and mixing control, and passively controls Technology processed with the good characteristic such as simple, economic, reliable due to being used widely.
It is at present the pact of water hammering by reducing pipeline or change to pipeline to the research major part of pipe vibration-damping Beam, in addition to application has limitation, rigid constraint easily causes to damage and fatigue rupture to pipeline.Current extensive use in addition Rubber support vibration isolation can only horizontal direction vibration isolation, it is impossible to carry out multi-direction vibration isolation, while rubber support is unable to passive energy dissipation, and And common rubber support tensile property is weaker, easily draws bad when device occurs large deformation.To improve the vibration isolation of pipeline configuration Or effectiveness in vibration suppression, the present invention uses U-shaped spring, with convenient material drawing, processes simple advantage, it is small when shaking its under elastic stage Work, for structure provides enough rigidity, when there is larger displacement, part steel plate enters mecystasis and consumes vibrational energy, And the horizontal displacement of limiting structure.Additionally, to improve effectiveness in vibration suppression, the viscoelastic material and viscous material of dissipation high are taken, its It is function admirable, with low cost, with good energy dissipation behavior and economy.
The content of the invention
Technical problem:The technical problems to be solved by the invention are to provide a kind of pipeline configuration multidimensional viscoplasticity and are filled every vibration damping Put, the device not only has superior energy dissipation capacity, can carry out vibration isolation and vibration damping in multiple directions, additionally it is possible to prevent piping displacement Viscoplasticity vibration isolating suspension draws bad when excessive.
Technical scheme:In order to solve the above technical problems, the technical solution adopted in the present invention is:A kind of pipeline configuration multidimensional Viscoplasticity every vibration absorber, by viscoplasticity vibration isolating suspension, viscoplasticity vibration isolating suspension upper steel plate, viscoplasticity vibration isolating suspension lower steel plate, Additional steel plate, U-shaped spring, shock absorber, bolt, pre-compressed spring composition, are provided with pre- between the nut on additional steel plate and bolt Pressing spring, additional steel plate and viscoplasticity vibration isolating suspension upper steel plate are fixed by bolt and pre-compressed spring, in additional steel plate and viscoplasticity Multiple U-shaped springs and shock absorber are connected between vibration isolating suspension lower steel plate.
Wherein, the viscoelastic layer in viscoplasticity vibration isolating suspension is thicker, is 2-10mm, and vertical rigidity is small, improves vibration isolation efficiency While can increase its energy dissipation behavior;In addition, viscoplasticity vibration isolating suspension device is not limited only to viscoplasticity bearing, may also be lead for retractable pencil and glue Elastic vibration isolation bearing or rubber support or lead core rubber support.
Wherein, shock absorber is symmetrically arranged in viscoplasticity vibration isolating suspension both sides, shock absorber can for viscoelastic damper or Viscous damper or metal damper, upper and lower side is respectively with additional steel plate and viscoplasticity vibration isolating suspension lower steel plate by welding or spiral shell Bolt is connected, can be multidirectional every effectiveness in vibration suppression by adjusting shock absorber number, size and alteration of form device.
Wherein, the other both sides of viscoplasticity vibration isolating suspension are arranged symmetrically multiple U-shaped springs, U-shaped spring upper and lower side respectively with Additional steel plate and viscoplasticity vibration isolating suspension lower steel plate are connected by welding or bolt, can be by adjusting U-shaped spring number, big Small, thickness and alteration of form device are multidirectional every effectiveness in vibration suppression.
Wherein, when being pressurized, pre-compressed spring does not work viscoplasticity vibration isolating suspension, when pulling force is pre- more than spring during tension Pressure, additional steel plate departs from bearing upper steel plate, effectively prevents viscoplasticity vibration isolating suspension from drawing bad.
Wherein, viscoelastic material and steel plate pass through HTHP vulcanization secure bond in viscoplasticity vibration isolating suspension.
Beneficial effect:The present invention is good by the advantage of viscoplasticity vibration isolating suspension, shock absorber and U-shaped spring every vibration absorber Combine, make device can not only horizontal vibration isolation, and can vertical vibration isolation, while level to vertically have good power consumption subtract Bestir oneself use.Further, since the position-limiting action of U-shaped spring and pre-compressed spring, can prevent from drawing bad every vibration absorber or occur not Reversible deformation.
Brief description of the drawings
Fig. 1 is generalized section of the inventive pipeline structure multi-dimension viscoplasticity every vibration absorber;
Fig. 2 is floor map of the inventive pipeline structure multi-dimension viscoplasticity every vibration absorber.
Fig. 3 is three-dimensional assembling schematic diagram of the inventive pipeline structure multi-dimension viscoplasticity every vibration absorber.
Have in figure:Bolt 1, viscoplasticity vibration isolating suspension 2, through hole 3, upper steel plate 4, pre-compressed spring 5, additional steel plate 6, shock absorber 7, lower steel plate 8, U-shaped spring 9.
Specific embodiment
With reference to the accompanying drawings and examples, technical scheme is described in detail.
As shown in Figures 1 to 3, every vibration absorber, core is viscoplasticity vibration isolating suspension to pipeline configuration multidimensional of the invention 2, the viscoplasticity vibration isolating suspension 2 and viscoplasticity vibration isolating suspension upper steel plate 4 and lower steel plate 8 are sulfided, viscoplasticity vibration isolating suspension 2 Outside is respectively symmetrically the multiple shock absorbers 7 of connection and U-shaped spring 9, and viscoplasticity vibration isolating suspension upper steel plate 4 and additional steel plate 6 are by bolt 1 Link together, and in order to prevent from being drawn bad during tension, be also provided with pre-compressed spring 5.
Wherein, viscoplasticity vibration isolating suspension 2 is formed by dissipation viscoelastic material high and sheet metal vulcanization, takes thicker viscoelastic Property layer material, general value be 2-10mm.To prevent sulfuration process from causing to damage to viscoelastic material, in the middle of rubber support 2 Stay through hole 3.The both sides of viscoplasticity vibration isolating suspension 2 are arranged symmetrically multiple shock absorbers 7, the upper and lower side of shock absorber 7 respectively with additional steel plate 6 and Viscoplasticity vibration isolating suspension lower steel plate 8 is connected by welding or bolt, can be by adjusting the number of shock absorber 7, size and shape Change device multidirectional every effectiveness in vibration suppression.The other both sides of viscoplasticity vibration isolating suspension 2 are arranged symmetrically multiple U-shaped springs 9, U-shaped The upper and lower side of spring 9 is connected with additional steel plate 6 and viscoplasticity vibration isolating suspension lower steel plate 8 by welding or bolt 1 respectively, Ke Yitong Quantity, size and the alteration of form device for overregulating U-shaped spring 9 are multidirectional every effectiveness in vibration suppression.Pre-compressed spring 5 and bolt 1 connect Viscoplasticity vibration isolating suspension upper steel plate 4 and additional steel plate 6 are connect, certain precompression, viscoplasticity vibration isolation branch are applied according to actual conditions When being pressurized, pre-compressed spring 5 does not work seat 2, when precompression of the pulling force more than spring, steel on additional steel plate and bearing during tension Plate departs from, and effectively prevent viscoplasticity vibration isolating suspension 2 and draws bad.
Inventive pipeline structure multi-dimension isolation vibration absorber is installed on pipeline configuration bottom, and thicker viscoelastic layer thickness makes dress Put no matter under vertical and horizontal direction dynamic excitation, dissipation viscoplasticity high all with good vibration isolating effect and thicker Material can also increase its energy dissipation capacity.
The shock absorber of the present apparatus can carry out deformation dissipation outside energy with vertical direction in the horizontal direction simultaneously, such as use Viscoelastic damper, then shock absorber can simultaneously in the vertical detrusion dissipation energy of level, such as use viscous damper, then may be used By the vertical dissipation energy of dissipation characteristic high of viscous material, such as to use metal damper, then can be by extruding or tension and compression Deformation multidimensional dissipation energy.Meanwhile, by changing shock absorber number and other characteristics come the horizontal vertical rigidity of conditioning unit, Practical Project can be tackled to be combined (for power consumption considers, typically thicker to be advisable).
The U-shaped spring of the present apparatus is except the lower external energy that can dissipate of horizontal vertical direction vibration, reduction structural vibration Outward, may also operate as good position-limiting action, and shape, number and thickness change can adjust horizontal vertical rigidity and every Shake ability.
Shearing and tension and compression deformation, the deformation of shock absorber and U-shaped spring of the apparatus of the present invention using viscoplasticity vibration isolating suspension Plastic deformation dissipation vibrational energy.During device tension and compression deformation, mainly by the shearing of shock absorber, viscous or tension and compression deformation, viscoelastic The tension and compression deformation and the deformation dissipation energy of U-shaped spring of property vibration isolating suspension.Wherein, small deformation and viscoelastic when shaking by shock absorber The tension and compression deformation two ways of property vibration isolating suspension is consumed energy;Then by the deformation of shock absorber, viscoplasticity vibration isolating suspension when shaking greatly Tension and compression deformation and U-shaped spring plastic deformation act on three kinds of modes consume energy.Meanwhile, it is protection viscoplasticity vibration isolating suspension, when shaking When dynamic tension displacement is excessive, viscoplasticity vibration isolating suspension is vertically separated with additional steel plate, prevents viscoplasticity vibration isolating suspension from drawing bad.And And, due to the plasticity energy consumption characters of the dissipation characteristic high, the energy dissipation behavior of shock absorber and U-shaped spring of viscoplasticity vibration isolating suspension, this There is device good power consumption to act on.During device horizontal distortion, mainly pass through viscoplasticity vibration isolating suspension, shock absorber and U-shaped spring Deformation dissipation energy.Wherein, small deformation when shaking by the shock absorber of viscoplasticity vibration isolating suspension and both sides in the horizontal direction, energy Enough good dissipation horizontal direction vibrational energies;Deformation when shaking greatly by viscoplasticity vibration isolating suspension and the shock absorber of both sides dissipates Vibrational energy, while U-shaped spring is by being plastically deformed the big energy that dissipates.
The present apparatus combines the advantage of viscoplasticity vibration isolating suspension, shock absorber and U-shaped spring, not only takes full advantage of viscous Elastic vibration isolation bearing vertical rigidity is larger, can provide the advantage of enough bearing capacities, and by U-shaped spring and pre-compressed spring with It is combined togather.Device can not only horizontal vibration isolation, and can vertical vibration isolation, while dissipation outside energy to viscoplasticity every The bearing that shakes carries out appropriate protection.Additionally, by selecting different shock absorbers, making device that there are different mechanical characteristics.
Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and is not to of the invention The restriction of implementation method.For those of ordinary skill in the field, it can also be made on the basis of the above description The change or variation of its multi-form.There is no need and unable to be exhaustive to all of implementation method.And these belong to this hair Obvious change or change within still in protection scope of the present invention that bright spirit is extended out.

Claims (6)

1. a kind of pipeline configuration multidimensional viscoplasticity is every vibration absorber, it is characterised in that:The device is by bolt(1), viscoplasticity vibration isolation Bearing(2), upper steel plate(4), pre-compressed spring(5), additional steel plate(6), shock absorber(7), lower steel plate(8), U-shaped spring(9)Composition; Wherein, in viscoplasticity vibration isolating suspension(2)Both sides up and down be respectively provided with upper steel plate(4), lower steel plate(8), in upper steel plate(4)On set Put additional steel plate(6), in additional steel plate(6)With lower steel plate(8)Between be respectively arranged with multiple U-shaped springs(9), upper steel plate(4) With additional steel plate(6)By bolt(1)Connection, additional steel plate(6)With bolt(1)On nut between be provided with pre-compressed spring(5), lead to Hole(3)Positioned at this every the centre of vibration absorber.
2. multidimensional viscoplasticity according to claim 1 is every vibration absorber, it is characterised in that:Described viscoplasticity vibration isolating suspension (2)It is formed by stacking by steel plate and viscoelastic material, viscoelastic layer thickness is 2-10mm, and steel plate thickness is 1-3mm.
3. multidimensional viscoplasticity according to claim 1 and 2 is every vibration absorber, it is characterised in that:The viscoplasticity vibration isolation branch Seat(2)Both sides are arranged symmetrically multiple shock absorbers(7), the shock absorber(7)Can for viscoelastic damper or viscous damper or Metal damper, shock absorber(7)Upper and lower side is respectively with additional steel plate and viscoplasticity vibration isolating suspension lower steel plate by welding or bolt It is connected.
4. the multidimensional viscoplasticity according to claim 1 or 2 or 3 is every vibration absorber, it is characterised in that:The viscoplasticity vibration isolation Bearing(2)Other both sides be arranged symmetrically multiple U-shaped springs(9), U-shaped spring upper and lower side respectively with additional steel plate and viscoplasticity every The bearing lower steel plate that shakes is connected by welding or bolt.
5. the multidimensional viscoplasticity according to claim 1 or 2 or 3 or 4 is every vibration absorber, it is characterised in that:Multiple precompressed bullets Spring applies precompression, is symmetrically arranged in viscoplasticity vibration isolating suspension both sides.
6. the multidimensional viscoplasticity according to claim according to claim 1 or 2 or 3 or 4 or 5 is every vibration absorber, its feature It is:Viscoelastic material and steel plate pass through HTHP vulcanization secure bond in viscoplasticity vibration isolating suspension.
CN201710053776.3A 2017-01-24 2017-01-24 Multi-dimensional viscoelastic vibration isolation and reduction device for pipeline structure Pending CN106704761A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107448046A (en) * 2017-08-14 2017-12-08 王昆 A kind of multi-direction wide frequency domain that need not add damper every vibration damping/shake device
CN110438893A (en) * 2019-08-29 2019-11-12 招商局重庆交通科研设计院有限公司 A kind of bridge energy dissipating support
CN110700436A (en) * 2019-10-16 2020-01-17 合肥工业大学 Energy-consuming type connecting node for hanging steel column and mounting method thereof
CN111828734A (en) * 2020-07-24 2020-10-27 哈尔滨工业大学 Vibration isolator for pipeline support

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CN205273180U (en) * 2016-01-14 2016-06-01 安徽江淮汽车股份有限公司 Gearbox suspension structure
CN105645235A (en) * 2016-03-29 2016-06-08 江南嘉捷电梯股份有限公司 Elevator traction machine rack
CN105839806A (en) * 2016-04-01 2016-08-10 东南大学 Viscoelastic vibration reduction and isolation device provided with belleville springs
CN105863096A (en) * 2016-04-21 2016-08-17 同济大学 Combined vibration reduction and insulation device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1448597A (en) * 2003-05-01 2003-10-15 东南大学 Engineering structure multidimensional damping device
JP2004340301A (en) * 2003-05-16 2004-12-02 Nippon Steel Corp Seismic isolator
CN203477174U (en) * 2013-08-29 2014-03-12 江苏新康华机械有限公司 Damping assembly for wind power generation equipment
CN105065567A (en) * 2015-08-31 2015-11-18 山东安博机械科技股份有限公司 Built-in type reaction pendant chain shearing spring and processing process thereof
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CN105863096A (en) * 2016-04-21 2016-08-17 同济大学 Combined vibration reduction and insulation device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107448046A (en) * 2017-08-14 2017-12-08 王昆 A kind of multi-direction wide frequency domain that need not add damper every vibration damping/shake device
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CN110700436A (en) * 2019-10-16 2020-01-17 合肥工业大学 Energy-consuming type connecting node for hanging steel column and mounting method thereof
CN110700436B (en) * 2019-10-16 2022-01-11 合肥工业大学 Energy-consuming type connecting node for hanging steel column and mounting method thereof
CN111828734A (en) * 2020-07-24 2020-10-27 哈尔滨工业大学 Vibration isolator for pipeline support

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