CN2895877Y - Composite magnetic-flow dampness variator - Google Patents
Composite magnetic-flow dampness variator Download PDFInfo
- Publication number
- CN2895877Y CN2895877Y CN 200620073602 CN200620073602U CN2895877Y CN 2895877 Y CN2895877 Y CN 2895877Y CN 200620073602 CN200620073602 CN 200620073602 CN 200620073602 U CN200620073602 U CN 200620073602U CN 2895877 Y CN2895877 Y CN 2895877Y
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- damper
- lead
- clutch release
- slave cylinder
- release slave
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- Vibration Prevention Devices (AREA)
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Abstract
A composite magnetic-flow dampness variator which is used in the vibration control of civil engineering structure is a compound damper of high energy consumption which can provide variable damping. Wherein, the operating cylinders of lead damper(3) are connected at the two ends of the operating cylinder of the magnetic-flow damper(11) respectively, and two magnetic current variant (10) are provided at the two ends in the operating cylinder of the magnetic-flow damper; the middle large-diameter part of the piston rod(4) is in the operating cylinder of the magnetic-flow damper, and an electromagnetic solenoid (12) is provided on the circumference of the large-diameter part in the middle of the piston rod; the lead (6) is provided in the operating cylinder of the lead damper, and the left end of the piston rod(4) runs through the operating cylinder of the lead damper to connect with the connector (1) as well as the right end runs through the operating cylinder of the lead damper and stretches out into the small cylinder freely on the right end of the operating cylinder of the lead damper; the part of the piston rod in the operating cylinder of the lead damper installs the process of piston rod (5) respectively, and the operating cylinder of the lead damper on the right end connects with the connector (1).
Description
Technical field
The utility model is a kind of damper that is used for civil engineering structure antidetonation (shaking), especially a kind of composite buffer that variable damping force can be provided of highly energy-consuming.
Background technique
Along with the development of country, the raising of life, significance structures such as high building structure, tall and slender structure, large span spatial structure grow with each passing day.Under dynamic load (as wind and earthquake) effect, bigger vibration can take place in these structures, has influence on the normal use and the safety of structure.And China is many earthquakes country, and national most of big and medium-sized cities are in the seismic region, and the antidetonation of therefore relevant civil structure and vibration damping problem are more apparent outstanding, and the research that this class formation is carried out vibration control has important and realistic meanings.Structural vibration control can alleviate reaction and the damage of structure under wind and geological process effectively, improves the shock resistance of structure and the performance of taking precautions against natural calamities effectively.Vibration control can come earthquake energy by vibration damping, shock-proof device, perhaps apply outside energy to offset the influence of geological process to structure, concrete by some position in structure, install certain device, mechanism or substructure, to change or adjustment dynamic Characteristics of Structure or dynamic action, make structure earthquake or wind bestir oneself with under dynamic response reasonably controlled, guarantee that structure itself reaches the safety of people in the structure, instrument, equipment etc. and is in normal Environmental Conditions situation.
Magnetic rheological body is a kind of intellectual material of function admirable, can change the higher visco-plastic body of shear yielding ability into from Newtonian fluid in moment under the effect in magnetic field, and this transformation continuous reversible.MR damper be use magnetic rheological body under high magnetic fields quick reversible rheological properties and a kind of novel vibrating control gear of making.Have simple in structure, accelerate mutually, damping force is big and advantage such as adjustable continuously.Practical distortion and outside earthquake (wind shakes) excitation according to structure, according to specific control law, the control externally-applied magnetic field is with the mechanical property of change MR damper, thereby the special parameter of change structural system is so that structure reaches best control effect in moment.
Lead is to make the common metal that the accumulated fatigue phenomenon can not take place the plasticity circulation time under only in theory a kind of room temperature, has characteristics such as plasticity height, rigidity are low, high damping force.Simultaneously, have bigger energy dissipation capacity, make lead become energy dissipating, damping and shockproof excellent materials owing to plumbously have rigidity after bigger initial stiffness and the less surrender.
Exploitation energy comsuming device and damper are to utilize single energy consume mechanism or single dissipative cell and material power consumption mostly both at home and abroad at present, and the damping force and the initial stiffness that are provided are limited.Therefore required energy comsuming device (damper) quantity is more, arranges trouble, and construction sequence and cycle increase, and influence building usage space.Seepage takes place in magnetic rheological body in the MR damper easily in vibration processes simultaneously, and it is the major issue that the puzzlement MR damper obtains extensive use that the sealing problem of magnetic rheological body and magnetic rheological body cost an arm and a leg always.
Summary of the invention
Technical problem: the purpose of this utility model be exploitation a kind of highly energy-consuming, simple structure, cheap, easy installation and removal, applied widely, damping effect is remarkable and high lossing energy composite magnetorheopectic damping device with good seal performance.
Technological scheme: high lossing energy composite magnetorheopectic damping device of the present utility model, form by shrouding behind sealing baffle, the lead damper after sealing baffle, seal ring, magnetic rheological body, MR damper clutch release slave cylinder, o liquid filling hole, the MR damper before shrouding, lead damper clutch release slave cylinder, piston rod, piston rod projection, lead, the plumbous hole of notes, the MR damper before connector, the lead damper.This device sealing baffle after sealing baffle, the MR damper before the two ends of MR damper clutch release slave cylinder are connected with MR damper respectively, two ends in the MR damper clutch release slave cylinder are provided with magnetic rheological body, major diameter in the middle of the piston rod partly is arranged in the MR damper clutch release slave cylinder, is provided with o on the circumference of the major diameter part in the middle of piston rod; The lead damper clutch release slave cylinder has two, lay respectively at the two ends of MR damper clutch release slave cylinder, inside at the lead damper clutch release slave cylinder is provided with lead, shrouding before the two ends of lead damper clutch release slave cylinder are respectively by lead damper, sealing baffle after sealing baffle or the MR damper before the MR damper, shrouding sealing behind the lead damper, the piston rod left end passes the lead damper clutch release slave cylinder and connector joins, it is free overhanging in the little cylinder body of lead damper clutch release slave cylinder right-hand member that the piston rod right-hand member passes the lead damper clutch release slave cylinder, the part that piston rod is positioned at the lead damper clutch release slave cylinder is respectively equipped with the piston rod projection, and the lead damper clutch release slave cylinder and the connector of right-hand member join.On the lead damper clutch release slave cylinder, be provided with and annotate plumbous hole, on the MR damper clutch release slave cylinder, be provided with liquid filling hole.Before MR damper, be provided with seal ring in the endoporus of sealing baffle after sealing baffle, the MR damper.
Under earthquake or high wind effect, when structure produces relative deformation, be installed in the structure damper and follow the generation relative deformation, size by electric current in the o in the adjustment high lossing energy composite magnetorheopectic damping device changes magnetic intensity, thereby change the resistance of fluid, form a kind of adjustable semi-automatic control device.Relative deformation owing to damper is simultaneously consumed energy the lead generation extruding hysteresis distortion in the damper.Rational Match by MR damper and lead damper be connected, the high lossing energy composite magnetorheopectic damping device of exploitation can satisfy various engineering wind resistance antidetonation needs, damping effect brilliance.
The structure of high lossing energy composite magnetorheopectic damping device is housed, when externally excitation causes the relative deformation of damper, MR damper part and the collaborative work of lead damper part, the magnetic coil energising, the part magnetic rheological body solidifies provides damping force, plumbous extruding surrender, enter the hysteretic energy state, the dissipation seismic energy reduces response of structure, thereby makes agent structure not produce destruction.
Beneficial effect: high lossing energy composite magnetorheopectic damping device of the present utility model adopts two kinds of mechanism combinations of half ACTIVE CONTROL and passive power consumption vibration dampings, has highly energy-consuming, simple structure, cheap, easy installation and removal, applied widely, advantage that damping effect is remarkable; Magnetorheological damping cylinder two ends are provided with plumbous damped cylinder, can effectively prevent magnetic flow liquid seepage in the clutch release slave cylinder; When equal damping force is provided, compare with pure MR damper, saved the damper cost widely.Add this damper in the structure, can increase the damping and the rigidity of structure, improve the ability of structure opposing external force, reduce seismic response.This damper can be widely used in the wind resistance earthquake proof construction of high building structure, tall and slender structure, large span spatial structure and bridge structure.
Utilize two kinds of machine-processed combined shock absorptions of the rheological properties of magnetic flow liquid and plumbous shear extrusion hysteresis distortion, brought into play the advantage of two kinds of shock absorbing mechanisms, existing very high energy dissipation capacity can provide the damping force of enough continuous variable again.When equal damping force is provided, compare with pure MR damper, saved the damper cost widely.
The cylinder body two ends of splendid attire magnetic flow liquid can effectively be prevented the seepage of magnetic flow liquid by the sealing of the cylinder body of splendid attire lead, and endurance quality is good.
Description of drawings
Fig. 1 is a cross-sectional view of the present utility model.
Have among the figure: shrouding 15 behind sealing baffle 14, the lead damper after connector 1, the preceding shrouding 2 of lead damper, lead damper clutch release slave cylinder 3, piston rod 4, piston rod projection 5, lead 6, the plumbous hole 7 of notes, the preceding sealing baffle 8 of MR damper, seal ring 9, magnetic rheological body 10, MR damper clutch release slave cylinder 11, o 12, liquid filling hole 13, the MR damper.
Embodiment
High lossing energy composite magnetorheopectic damping device of the present utility model is partly combined by MR damper part and lead damper.The MR damper part partly is made up of sealing baffle 14, seal ring 9, magnetic rheological body 10, o 12, liquid filling hole 13 etc. after sealing baffle 8, the MR damper before MR damper clutch release slave cylinder 11, the MR damper.The lead damper part mainly is made up of lead damper clutch release slave cylinder 3, piston rod 4, piston rod projection 5, lead 6, the plumbous hole 7 of notes and two end-plates.Before the MR damper after sealing baffle 8 and the MR damper sealing baffle 14 with lead damper clutch release slave cylinder 3 and MR damper clutch release slave cylinder 11 firm be connected in aggregates, not only can make the lead damper at MR damper and two ends when using process, be out of shape consistent, the damping force that varies in size is provided, and can effectively prevents the seepage of magnetic rheological body 10.
This device sealing baffle 14 after sealing baffle 8, the MR damper before the two ends of MR damper clutch release slave cylinder 11 are connected with MR damper respectively, two ends in MR damper clutch release slave cylinder 11 are provided with magnetic rheological body 10, major diameter in the middle of the piston rod 4 partly is arranged in MR damper clutch release slave cylinder 11, is provided with o 12 on the circumference of the part of the major diameter in the middle of the piston rod 4; Lead damper clutch release slave cylinder 3 has two, lay respectively at the two ends of MR damper clutch release slave cylinder 11, be provided with in the inside of lead damper clutch release slave cylinder 3 plumbous 6, shrouding 15 sealings behind sealing baffle 14, the lead damper after sealing baffle 8 or the MR damper before shrouding 2, the MR damper before the two ends of lead damper clutch release slave cylinder 3 are respectively by lead damper; Piston rod 4 left ends pass lead damper clutch release slave cylinder 3 and join with connector 1, it is free overhanging in the little cylinder body of lead damper clutch release slave cylinder 3 right-hand members that piston rod 4 right-hand members pass lead damper clutch release slave cylinder 3, the part that piston rod 4 is positioned at lead damper clutch release slave cylinder 3 is respectively equipped with piston rod projection 5, and the lead damper clutch release slave cylinder 3 and the connector 1 of right-hand member join; On lead damper clutch release slave cylinder 3, be provided with and annotate plumbous hole 7, on MR damper clutch release slave cylinder 11, be provided with liquid filling hole 13; Before MR damper, be provided with seal ring 9 after sealing baffle 8, the MR damper in the endoporus of sealing baffle 14.Coil on the o 12 adopts the winding around horizontal axis, and the magnetic field in magnetic rheological body 10 passages evenly and the axis normal of direction and this damper.
Between MR damper clutch release slave cylinder 11 and piston rod 4, there is damp channel, be generally 0.8～2.0mm, when piston rod 4 is made reciprocal linear relative movement in MR damper clutch release slave cylinder 11, when the magnetic rheological body 10 of extruding inner chamber forces it to flow through the damping gap, under the energising situation, 10 moments of magnetic rheological body are changed sticking plastomer into by Newtonian fluid in the damp channel, and the flow resistance that makes fluid increases when not switching on, and produces the damping-force adjustable of MR damper.
In lead damper, piston rod projection 5 and casing wall form extrusion orifice, when piston rod 4 lead damper clutch release slave cylinder 3 in during relative movement, lead 6 is extruded by extrusion orifice and produces plasticity extrusion-deformation, dissipation energy.
The damping force of MR damper and lead damper can be selected different numerical value according to concrete structure, and the damping force scope of MR damper is generally 0 to 300KN, and the input current scope is generally 0 to 6 ampere.The damping force scope 0 to 500KN of lead damper.In concrete structural vibration reduction Control Engineering, can take all factors into consideration the characteristic and the damping requirement of structure, the displacement amount of the consumption of appropriate design magnetic rheological body and lead, coil turn, piston reaches ideal control effect.
Claims (2)
1, a kind of combined-type magnetic rheological damper, it is characterized in that this device sealing baffle (14) after sealing baffle (8), the MR damper before the two ends of MR damper clutch release slave cylinder (11) are connected with MR damper respectively, magnetic rheological body (10) is housed in MR damper clutch release slave cylinder (11), major diameter in the middle of the piston rod (4) partly is arranged in MR damper clutch release slave cylinder (11), is provided with o (12) on the circumference of the major diameter part in the middle of piston rod (4); Lead damper clutch release slave cylinder (3) has two, lay respectively at the two ends of MR damper clutch release slave cylinder (11), be provided with lead (6) in the inside of lead damper clutch release slave cylinder (3), shrouding (2) before the two ends of lead damper clutch release slave cylinder (3) are respectively by lead damper, sealing baffle (14) after sealing baffle (8) or the MR damper before the MR damper, shrouding behind the lead damper (15) sealing, piston rod (4) left end passes lead damper clutch release slave cylinder (3) and joins with connector (1), it is free overhanging in the little cylinder body of lead damper clutch release slave cylinder (3) right-hand member that piston rod (4) right-hand member passes lead damper clutch release slave cylinder (3), the part that piston rod (4) is positioned at lead damper clutch release slave cylinder (3) is respectively equipped with piston rod projection (5), and the lead damper clutch release slave cylinder (3) of right-hand member joins with connector (1).
2, combined-type magnetic rheological damper according to claim 1 is characterized in that coil on the o (12) adopts the winding around horizontal axis, and the magnetic field in magnetic rheological body (10) passage evenly and the axis normal of direction and this damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620073602 CN2895877Y (en) | 2006-06-07 | 2006-06-07 | Composite magnetic-flow dampness variator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620073602 CN2895877Y (en) | 2006-06-07 | 2006-06-07 | Composite magnetic-flow dampness variator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2895877Y true CN2895877Y (en) | 2007-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620073602 Expired - Lifetime CN2895877Y (en) | 2006-06-07 | 2006-06-07 | Composite magnetic-flow dampness variator |
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| CN (1) | CN2895877Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100417773C (en) * | 2006-06-07 | 2008-09-10 | 东南大学 | High lossing energy composite magnetorheopectic damping device |
| CN102080421A (en) * | 2011-01-30 | 2011-06-01 | 东南大学 | Damping generation method through torsion type lead extrusion and damper thereof |
| CN102102731A (en) * | 2011-02-28 | 2011-06-22 | 重庆大学 | Magnetorheological body-based decoupled damping and stiffness controllable hydro-pneumatic spring damping device |
| CN102235456A (en) * | 2010-04-26 | 2011-11-09 | Bwi股份有限公司 | Double-seal rod guidance assembly with low-friction disc |
| CN101839298B (en) * | 2010-01-19 | 2012-01-04 | 谭晓婧 | Double-cylinder magneto-rheological damper |
| CN113931929A (en) * | 2021-09-16 | 2022-01-14 | 上海工程技术大学 | Rolling bearing device capable of autonomously damping and reducing noise |
| CN114837486A (en) * | 2022-05-26 | 2022-08-02 | 安徽工业大学 | Assembled foamed aluminum-based composite material-extruded lead composite damper and anti-seismic device |
-
2006
- 2006-06-07 CN CN 200620073602 patent/CN2895877Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100417773C (en) * | 2006-06-07 | 2008-09-10 | 东南大学 | High lossing energy composite magnetorheopectic damping device |
| CN101839298B (en) * | 2010-01-19 | 2012-01-04 | 谭晓婧 | Double-cylinder magneto-rheological damper |
| CN102235456A (en) * | 2010-04-26 | 2011-11-09 | Bwi股份有限公司 | Double-seal rod guidance assembly with low-friction disc |
| CN102235456B (en) * | 2010-04-26 | 2013-11-06 | 京西重工股份有限公司 | Double-seal rod guidance assembly with low-friction disc |
| CN102080421A (en) * | 2011-01-30 | 2011-06-01 | 东南大学 | Damping generation method through torsion type lead extrusion and damper thereof |
| CN102102731A (en) * | 2011-02-28 | 2011-06-22 | 重庆大学 | Magnetorheological body-based decoupled damping and stiffness controllable hydro-pneumatic spring damping device |
| CN113931929A (en) * | 2021-09-16 | 2022-01-14 | 上海工程技术大学 | Rolling bearing device capable of autonomously damping and reducing noise |
| CN113931929B (en) * | 2021-09-16 | 2024-01-23 | 上海工程技术大学 | Rolling bearing device capable of autonomously reducing vibration and noise |
| CN114837486A (en) * | 2022-05-26 | 2022-08-02 | 安徽工业大学 | Assembled foamed aluminum-based composite material-extruded lead composite damper and anti-seismic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080910 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |