CN110454637A - A kind of pipeline damping control device based on variation rigidity dynamic vibration absorber - Google Patents
A kind of pipeline damping control device based on variation rigidity dynamic vibration absorber Download PDFInfo
- Publication number
- CN110454637A CN110454637A CN201910753264.7A CN201910753264A CN110454637A CN 110454637 A CN110454637 A CN 110454637A CN 201910753264 A CN201910753264 A CN 201910753264A CN 110454637 A CN110454637 A CN 110454637A
- Authority
- CN
- China
- Prior art keywords
- vibration absorber
- dynamic vibration
- cylinder barrel
- guide rod
- connecting tube
- 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.)
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Classifications
-
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/041—Devices damping pulsations or vibrations in fluids specially adapted for preventing vibrations
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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
- F16F2224/00—Materials; Material properties
- F16F2224/04—Fluids
- F16F2224/045—Fluids magnetorheological
-
- 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
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/06—Stiffness
- F16F2228/066—Variable stiffness
Abstract
The invention discloses a kind of pipeline damping control devices based on variation rigidity dynamic vibration absorber, including cylinder barrel, the nozzle of the cylinder barrel is equipped with end cap, through equipped with guide rod on the end cap, one end of the guide rod is equipped with piston rod earrings, the other end of the guide rod protrudes into cylinder barrel and is equipped with piston, cylinder barrel is divided into rodless cavity and rod chamber by the piston, mounting plate is equipped in the cylinder barrel, the guide rod passes through mounting plate, the two sides up and down of the mounting plate are equipped with the first check valve, the outer surface side of the cylinder barrel is integrally formed with outlet tube, variation rigidity dynamic vibration absorber is by the size of current in regulating winding come the magnetic field strength in magnetic circuit, and then its modulus of shearing is made to change, realize variable rigidity, the rigidity of dynamic vibration absorber can be adjusted according to the variation of the pipeline natural frequency of vibration at any time, variation rigidity dynamic vibration absorber coil is set It sets outside damper cylinder, is not subject to the conditions such as high pressure, high temperature, long service life.
Description
Technical field
The present invention relates to Structural Engineering, vibration control technology field, specific field is a kind of based on variation rigidity dynamic absorber
The pipeline damping control device of device.
Background technique
Fluid conveying pipe is widely used in various engineering fields, relates generally to Marine engineering, ocean engineering, power engineering, core
Industry, the fields such as petroleum industry, chemical industry.As the important link to trandfer fluid, transmitting fluid dynamic and information, stream
The dynamic property of body pipeline has very big influence to stability, the reliability of whole system.General work in fluid-duct-system
It is more to make element, at which when working condition, pipe-line system can generate vibration, and pipe vibration be likely to result in pipeline and its
The stress of attachment is excessive, fatigue rupture and the vibration for causing associated equipment, so that equipment fatigue or staff are uncomfortable.Mesh
Before, pipe-line system vibration cause can be divided into following three kinds: pipe-line system forced vibration, fluids within pipes resonate and manifold pressure
Pulsation causes to resonate.
It at present mainly include four kinds of methods about the vibration reduction strategy of pipeline: optimization pipe-line system structure, abatement fluid vibration
Dynamic, composed of external damping device and additionaling power bump leveller method.Wherein, it is a kind of easy that additionaling power bump leveller, which carrys out the method for vibration damping,
In the method for realization.Dynamic vibration absorber is equivalent to additional subsystem on the tubing, the intrinsic frequency and pipeline of subsystem
Excited frequency it is consistent, the vibrational energy of pipe-line system is transmitted on subsystem, the vibration of pipe-line system is reduced.Power is inhaled
Vibration device has the characteristics that newly add support just mountable, therefore has wide range of applications, current most of dynamic vibration absorber coils
It is easily damaged, causes dynamic vibration absorber frequency of maintenance higher, furthermore dynamic vibration absorber fever phenomenon is serious, is easy overheat, reduces
The service life of dynamic vibration absorber, thus it is proposed that a kind of pipeline shockproof control dress based on variation rigidity dynamic vibration absorber
It sets.
Summary of the invention
The purpose of the present invention is to provide a kind of pipeline damping control devices based on variation rigidity dynamic vibration absorber, to solve
The problems mentioned above in the background art.
To achieve the above object, the invention provides the following technical scheme: a kind of pipeline based on variation rigidity dynamic vibration absorber
Damping control device, including cylinder barrel, the nozzle of the cylinder barrel are equipped with end cap, run through on the end cap and be equipped with guide rod, the guide rod
One end be equipped with piston rod earrings, the other end of the guide rod protrudes into cylinder barrel and is equipped with piston, and cylinder barrel is divided by the piston
Rodless cavity and rod chamber, the cylinder barrel is interior to be equipped with mounting plate, and the guide rod passes through mounting plate, and the two sides up and down of the mounting plate are equal
Equipped with the first check valve, integrally formed with outlet tube, the outlet tube is communicated with the first connection for the outer surface side of the cylinder barrel
One end of pipe, the other end of first connecting tube are connected with the side through flow hole of dynamic vibration absorber, the dynamic vibration absorber
Interior to be equipped with square hole flow guiding disc and centre bore flow guiding disc, the outside of the dynamic vibration absorber, which is equipped with, protects cylinder every magnetic, described every magnetic
The outside of cylinder is protected to be equipped with coil, integrally formed with inlet tube, the inlet tube is communicated with for the outer surface other side of the cylinder barrel
One end of second connecting tube, the other end of second connecting tube is connected with the other side through flow hole of dynamic vibration absorber, described
Dynamic vibration absorber is connected with compensation container by third connecting tube, and second connecting tube is connected with magnetorheological elasticity by branch pipe
Body stores ware, and the downside of the magnetic rheology elastic body storage ware is equipped with support.
Preferably, second one-way valve is symmetrically arranged in the third connecting tube and in the two sides of dynamic vibration absorber.
Compared with prior art, the beneficial effects of the present invention are: a kind of pipeline damping based on variation rigidity dynamic vibration absorber
Control device has the advantage that
First, variation rigidity dynamic vibration absorber of the invention is by the size of current in regulating winding come the magnetic in magnetic circuit
Field intensity, and then its modulus of shearing is made to change, realize variable rigidity, it can be at any time according to the variation tune of the pipeline natural frequency of vibration
Save the rigidity of dynamic vibration absorber；
Second, variation rigidity dynamic vibration absorber coil of the invention is arranged outside damper cylinder, it is not subject to high pressure, high temperature
Etc. conditions, long service life；
Third, the magnetorheological fluid of variation rigidity dynamic vibration absorber of the invention occurs and compensation container is arranged at and protects every magnetic
Outside cylinder, radiating condition is good, will not generate superheating phenomenon；
Fourth, variation rigidity dynamic vibration absorber of the invention carries out vibration damping control to pipeline using frequency real-time tracking, use
Simulink real-time frequency tracks the variation of the pipeline natural frequency of vibration, adjusts the rigidity of bump leveller, controllability is stronger.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the invention；
Fig. 2 is control flow chart of the invention.
In figure: 1- cylinder barrel, 2- end cap, 3- guide rod, 4- piston rod earrings, 5- piston, 6- rodless cavity, 7- rod chamber, 8- peace
Loading board, the first check valve of 9-, 10- outlet tube, the first connecting tube of 11-, 12- dynamic vibration absorber, 13- square hole flow guiding disc, in 14-
Heart hole flow guiding disc, 15- protect cylinder, 16- coil, 17- inlet tube, the second connecting tube of 18-, 19- third connecting tube, 20- to mend every magnetic
Repay container, 21- magnetic rheology elastic body storage ware, 22- support, 23- second one-way valve.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution referring to FIG. 1-2: a kind of pipeline damping based on variation rigidity dynamic vibration absorber
Control device, including cylinder barrel 1, the nozzle of the cylinder barrel 1 are equipped with end cap 2, run through on the end cap 2 and be equipped with guide rod 3, the guide rod
3 one end is equipped with piston rod earrings 4, and the other end of the guide rod 3 protrudes into cylinder barrel 1 and be equipped with piston 5, and the piston 5 is by cylinder
1 point of cylinder is rodless cavity 6 and rod chamber 7, and magnetorheological fluid is stored in rodless cavity, mounting plate 8 is equipped in the cylinder barrel 1, described to lead
Bar 3 passes through mounting plate 8, and the two sides up and down of the mounting plate 8 are equipped with the first check valve 9, the outer surface side one of the cylinder barrel 1
Body formed have an outlet tube 10, and the outlet tube 10 is communicated with one end of the first connecting tube 11, first connecting tube 11 it is another
End is connected with the side through flow hole of dynamic vibration absorber 12, is equipped with square hole flow guiding disc 13 and center in the dynamic vibration absorber 12
Hole flow guiding disc 14, the outside of the dynamic vibration absorber 12, which is equipped with, protects cylinder 15 every magnetic, and the outside every magnetic protection cylinder 15 is equipped with
Coil 16 responds lesser reference point placement sensor at the top of test point (hitch point) and pipeline respectively, measures two o'clock
Signal goes out intrinsic frequency by Simulink frequency real-time tracking, identifies the electric current that coil needs to apply；The cylinder barrel 1
Integrally formed with inlet tube 17, the inlet tube 17 is communicated with one end of the second connecting tube 18 for the outer surface other side, and described second
The other end of connecting tube 18 is connected with the other side through flow hole of dynamic vibration absorber 12, and the dynamic vibration absorber 12 is connected by third
Adapter tube 19 is connected with compensation container 20, compensates in container and stores cured silicon rubber, second connecting tube 18 passes through branch
Pipe is connected with magnetic rheology elastic body storage ware 21, and the downside of the magnetic rheology elastic body storage ware 21 is equipped with support 22, works as pipeline
When being vibrated, power caused by vibrating makes the magnetorheological fluid when the guide rod 3 in cylinder barrel 1 moves downward, in rodless cavity be squeezed
Flowed out from outlet tube 10, by the first connecting tube 11, and enter the through flow hole of 12 side of dynamic vibration absorber, at the same from through flow hole into
The magnetorheological fluid entered in dynamic vibration absorber 12 is flowed through the radial clearance between square hole flow guiding disc 13 and centre bore flow guiding disc 14,
Second one-way valve 23 is opened, mixes the cured silicon rubber compensated in container 14 with the magnetorheological fluid in outlet tube 10, is occurred
Magnetic rheology effect forms magnetic rheology elastic body, while coil 16 being made to be powered, and size of current is adjusted, thus in dynamic vibration absorber 12
The interior intensity for changing magnetic field, and then its modulus of shearing is made to change, to achieve the purpose that change rigidity, realize that bump leveller becomes
Frequently, make bump leveller frequency and pipeline excited frequency almost the same, reduce pipe control, reach vibration damping control purpose；In addition, being squeezed
The magnetorheological fluid of pressure is flowed out from the through flow hole of 12 other side of dynamic vibration absorber, is entered in the rod chamber on cylinder barrel 2 through inlet tube 17,
When vibrating again, repeat the above process.
Specifically, being symmetrically arranged with second one-way valve in the third connecting tube 19 and in the two sides of dynamic vibration absorber 12
23。
Working principle: pipeline damping control device is arranged at the top of pipeline by the present invention, by regulating winding electric current, is carried out
Dynamic vibration absorber frequency conversion, so that dynamic vibration absorber intrinsic frequency is consistent with the pipeline natural frequency of vibration, i.e., by the vibrational energy of pipe-line system
Amount passes on dynamic vibration absorber, reduces the vibration of pipeline, reaches vibration damping control purpose；When pipeline is vibrated, vibration causes
Power make the magnetorheological fluid when the guide rod 3 in cylinder barrel 1 moves downward, in rodless cavity be squeezed from outlet tube 10 flow out, pass through
First connecting tube 11, and enter the through flow hole of 12 side of dynamic vibration absorber, while entering in dynamic vibration absorber 12 from through flow hole
Magnetorheological fluid is flowed through the radial clearance between square hole flow guiding disc 13 and centre bore flow guiding disc 14, opens second one-way valve 23,
It mixes the cured silicon rubber compensated in container 14 with the magnetorheological fluid in outlet tube 10, magnetic rheology effect occurs, form magnetic
Magnetorheological elastomer, while coil 16 being made to be powered, according to the lesser reference point of response at the top of test point (hitch point) and pipeline
The signal of two o'clock measured by placement sensor goes out intrinsic frequency by Simulink frequency real-time tracking, identifies coil needs
The electric current of application, and size of current is adjusted, to change the intensity in magnetic field in dynamic vibration absorber 12, and then make its modulus of shearing
It changes, to achieve the purpose that change rigidity, realizes bump leveller frequency conversion, keep bump leveller frequency and pipeline excited frequency basic
Unanimously, pipe control is reduced, vibration damping control purpose is reached；In addition, the magnetorheological fluid being extruded is from 12 other side of dynamic vibration absorber
Through flow hole outflow, through inlet tube 17 enter cylinder barrel 2 on rod chamber in, when vibrating again, repeat the above process.
In the description of the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ",
" fixation " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be machinery
Connection, is also possible to be electrically connected；It can be directly connected, two elements can also be can be indirectly connected through an intermediary
The interaction relationship of internal connection or two elements.It for the ordinary skill in the art, can be with concrete condition
Understand the concrete meaning of above-mentioned term in the present invention.
The standardized element that the present invention uses can commercially, and shaped piece is according to specification and attached drawing note
Load can carry out customized, and the specific connection type of each part is all made of in the prior art mature bolt, rivet, welding etc.
Conventional means, mechanical, part and equipment are all made of in the prior art, conventional model, in addition circuit connection uses the prior art
Middle conventional connection type, this will not be detailed here.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (2)
1. a kind of pipeline damping control device based on variation rigidity dynamic vibration absorber, including cylinder barrel (1), it is characterised in that: described
The nozzle of cylinder barrel (1) is equipped with end cap (2), and through guide rod (3) are equipped on the end cap (2), one end of the guide rod (3), which is equipped with, lives
Stopper rod earrings (4), the other end of the guide rod (3) protrude into cylinder barrel (1) and are equipped with piston (5), and the piston (5) is by cylinder barrel
(1) it is divided into rodless cavity (6) and rod chamber (7), is equipped with mounting plate (8) in the cylinder barrel (1), the guide rod (3) passes through mounting plate
(8), the two sides up and down of the mounting plate (8) are equipped with the first check valve (9), the outer surface side of the cylinder barrel (1) one at
Type has outlet tube (10), and the outlet tube (10) is communicated with one end of the first connecting tube (11), first connecting tube (11)
The other end is connected with the side through flow hole of dynamic vibration absorber (12), and square hole flow guiding disc is equipped in the dynamic vibration absorber (12)
(13) and centre bore flow guiding disc (14), the outside of the dynamic vibration absorber (12), which is equipped with, protects cylinder (15) every magnetic, described to protect every magnetic
The outside of casing (15) is equipped with coil (16), and the outer surface other side of the cylinder barrel (1) is described integrally formed with inlet tube (17)
Inlet tube (17) is communicated with one end of the second connecting tube (18), the other end and dynamic vibration absorber of second connecting tube (18)
(12) other side through flow hole is connected, and the dynamic vibration absorber (12) is connected with compensation container by third connecting tube (19)
(20), second connecting tube (18) is connected with magnetic rheology elastic body storage ware (21), the magnetic rheology elastic body by branch pipe
The downside for storing ware (21) is equipped with support (22).
2. a kind of pipeline damping control device based on variation rigidity dynamic vibration absorber according to claim 1, feature exist
In: second one-way valve (23) are symmetrically arranged on the third connecting tube (19) and in the two sides of dynamic vibration absorber (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910753264.7A CN110454637A (en) | 2019-08-15 | 2019-08-15 | A kind of pipeline damping control device based on variation rigidity dynamic vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910753264.7A CN110454637A (en) | 2019-08-15 | 2019-08-15 | A kind of pipeline damping control device based on variation rigidity dynamic vibration absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110454637A true CN110454637A (en) | 2019-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910753264.7A Pending CN110454637A (en) | 2019-08-15 | 2019-08-15 | A kind of pipeline damping control device based on variation rigidity dynamic vibration absorber |
Country Status (1)
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| CN (1) | CN110454637A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110775771A (en) * | 2019-11-22 | 2020-02-11 | 南通大学 | Mine hoist system gyro wheel cage shoe buffer |
| CN111765317A (en) * | 2020-07-15 | 2020-10-13 | 石东琴 | Self-adaptive buffer adjustable hanger |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE935831C (en) * | 1953-04-05 | 1955-12-01 | Robert Hanning | Adjustable fluid damping |
| JPS59184007A (en) * | 1983-03-31 | 1984-10-19 | Nhk Spring Co Ltd | Car suspender |
| CN2551807Y (en) * | 2002-03-01 | 2003-05-21 | 天津大学 | Hydraulic cylinder double piston hydraulic and spring combined vibration damper |
| CN2658474Y (en) * | 2003-01-10 | 2004-11-24 | 杜彦亭 | Bypass magnetic rheological damper with external magnetic field |
| CN106930706A (en) * | 2016-05-13 | 2017-07-07 | 山东科技大学 | A kind of deep sea vertical pipe jetting type active vibration-repressing device |
| CN108317300A (en) * | 2018-03-29 | 2018-07-24 | 东南大学 | A kind of multi-direction viscoplasticity of pipeline is every vibration absorber and pipeline every oscillation damping method |
-
2019
- 2019-08-15 CN CN201910753264.7A patent/CN110454637A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE935831C (en) * | 1953-04-05 | 1955-12-01 | Robert Hanning | Adjustable fluid damping |
| JPS59184007A (en) * | 1983-03-31 | 1984-10-19 | Nhk Spring Co Ltd | Car suspender |
| CN2551807Y (en) * | 2002-03-01 | 2003-05-21 | 天津大学 | Hydraulic cylinder double piston hydraulic and spring combined vibration damper |
| CN2658474Y (en) * | 2003-01-10 | 2004-11-24 | 杜彦亭 | Bypass magnetic rheological damper with external magnetic field |
| CN106930706A (en) * | 2016-05-13 | 2017-07-07 | 山东科技大学 | A kind of deep sea vertical pipe jetting type active vibration-repressing device |
| CN108317300A (en) * | 2018-03-29 | 2018-07-24 | 东南大学 | A kind of multi-direction viscoplasticity of pipeline is every vibration absorber and pipeline every oscillation damping method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110775771A (en) * | 2019-11-22 | 2020-02-11 | 南通大学 | Mine hoist system gyro wheel cage shoe buffer |
| CN110775771B (en) * | 2019-11-22 | 2023-11-03 | 南通大学 | Roller cage shoe buffer of mine hoisting system |
| CN111765317A (en) * | 2020-07-15 | 2020-10-13 | 石东琴 | Self-adaptive buffer adjustable hanger |
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Application publication date: 20191115 |