CN101201091A - Magnetic current damper with multiple degrees of freedom - Google Patents
Magnetic current damper with multiple degrees of freedom Download PDFInfo
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- CN101201091A CN101201091A CNA2006101051434A CN200610105143A CN101201091A CN 101201091 A CN101201091 A CN 101201091A CN A2006101051434 A CNA2006101051434 A CN A2006101051434A CN 200610105143 A CN200610105143 A CN 200610105143A CN 101201091 A CN101201091 A CN 101201091A
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Abstract
The invention relates to a multiple freedom degree a MR damper that can be arranged horizontally or randomly. The invention comprises a multiple freedom degree MR damper cylinder, a controllable MR damping generator, two working medium of oil liquid and MR liquid, an oil liquid/ MR liquid converter, a liquid infusion cavity and an oil distributing valve group. The oil liquid/ MR liquid converter and an electrically controlled damping generator are in a body and arranged vertically. The invention avoids harmful effects on the MR liquid caused by deposition. The invention solves the technical problem that the MR damping generator in a background technology can not be arranged horizontally and randomly to realize multiple freedom degree controllable damping. The invention can realize the multiple freedom degree controllable damping of any pose like a horizontal or vertical pose.
Description
One. technical field
The present invention relates to a kind of MR damper, the fluid of especially a kind of energy realization level, any attitude vibration damping and magnetic flow liquid bluk recombination are as the magnetic field external magnetic current damper with multiple degrees of freedom of resisting medium.
Two. background technique
Machinery such as vehicle, naval vessel is in traveling process or caused under the situation of vibration by the external force effect to need vibration damping, visual plants such as building cause at shock waves such as being subjected to earthquake under the situation of vibration will guarantee safety, vibration damping equipment often is set on equipment such as these machineries reduces vibration.Present vibration damping equipment all is made up of common hydraulic damper and elastic element basically, hydraulic damper has been brought into play important damping effect in vibration insulating system, but, the damping force of common hydraulic damper output mainly is subjected to the influence of damping hole and fluid viscosity, be difficult for damping force being controlled, make damping force be in the optimum state according to the vibration situation.In order to address this problem, people are constantly exploring new controllable damper, and MR damper is exactly the most promising passive controllable damper.The home and abroad has all dropped into great amount of manpower and material resources are studied magnetorheological controllable damper, the existing ripe product of external MR damper, the MR damper of the vertical vibration damping of domestic development is equipped in the kilometers up to ten thousand that travelled on the special vehicle, but the magnetorheological controllable damper of the multi-freedom degree that can realize horizontal vibration damping, owing to can not solve the problem that the magnetic rheological liquid precipitation is brought, never have corresponding product, thereby the level that needs in a large number to solve is closed the controlled vibration damping problem of multi-freedom degree and be can not get effective solution always.
Three. summary of the invention
The present invention can not level install with any for solving the magnetorheological controllable damper that exists in the background technique, realize the technical problem of multi-freedom degree damping force control, provide a kind of fluid and magnetic rheological liquid used as medium, the external magnetic current damper with multiple degrees of freedom in magnetic field, energy realization level, the controlled vibration damping of multi-freedom degree.
Technical solution of the present invention is: but studied, designed a kind of magnetic current damper with multiple degrees of freedom of any device, comprise multi-freedom degree hydraulic damping cylinder, hydraulic oil liquid magnetic flow liquid transducer, slit-shaped radial flow path formula magnetorheological damping generator and automatic liquid supply distributing device.Its special way is: above-described MR damper by hydraulic damping cylinder and hydraulic oil liquid magnetic flow liquid transducer and automatically controlled magnetic field generator be that the controllable damping generator two large divisions of one forms.
Resisting medium in the above-mentioned damper is hydraulic oil and two kinds of liquid of isolating mutually of magnetic rheological liquid.
Medium in the above-mentioned hydraulic damper is a hydraulic oil, does not have sedimentation problem, can any device.
The two ends of above-mentioned hydraulic damper are installed the connecting structure form and are the globular hinge mode, can bear multivariant tension and compression load.
Above-mentioned controllable magnetic rheology damp generator comprises the upper and lower two oil/magnetic flow liquid transducer of isolating with piston.
The damp channel of above-mentioned damp generator is disc shunting, afflux parallel slit, has guaranteed that the magnetic line of force is vertical with the liquid flow path direction, the efficient height of magnetic rheology effect.
Above-mentioned controllable damping generator or hard tube soft with hydraulic damper branch body and function connects, and be easy for installation.
Above-mentioned controllable damping generator vertical means, separator piston makes two magnetic rheological liquids in the transducer under the effect of hydraulic oil all be from up to down mobile, guarantee that near the static time precipitation powder magnetic rheological liquid that post precipitation viscosity is big cavity outlet at first flows through damp channel, do not exist because of the precipitation magnetic rheology effect loses efficacy and asked body, the magnetorheological inefficient phenomenon that the dead angle also can not occur precipitating and cause because of sedimentation problem, damping is good.
Above-mentioned hydraulic damper comprises fluid infusion cavity and oil distributing valve group, is filled with hydraulic oil and pressurized gas in the fluid infusion chamber, the low-pressure cavity that the oil in the cavity can enter damped cylinder through one-way valve, and the oil in the damped cylinder can not enter liquid storage cylinder.
The present invention has the following advantages:
1. can any device.Liquid in the damped cylinder of the present invention is hydraulic oil, does not have sedimentation problem, can not influence the damping effect of magnetic flow liquid because of precipitation, thereby the restriction installation form has solved level and damping vibration attenuation problem at any angle.
2. hydraulic damping cylinder of the present invention two ends are the globular hinge mode, and a plurality of dampers can be realized the multi-freedom degree damping function.The multi-freedom degree tension and compression load of bearing, resist, decay.
3. magnetic rheological liquid of the present invention flowing in two transducers all is mobile from the top down, and the static precipitation that causes not only can not influence initial damping, and initial on the contrary damping is better.
4. save the magnetic rheological liquid consumption.Only in magnetorheological generator, there is not the external leakage phenomenon in magnetic rheological liquid of the present invention, thereby has reduced user cost.
5. magnetorheological efficient height.The present invention makes the magnetic line of force of damp generator vertical with the liquid flow path direction, has utilized magnetic field effect to greatest extent.
6. radiating condition is good, and it is overheated to be difficult for producing, and the good work environment of coil takes place in magnetic field, and the life-span is long.
7. simple in structure, easy to maintenance, little seepage can compensate automatically, long service life.
Four. description of drawings
Accompanying drawing is a structural representation of the invention process.
Five. embodiment
The specific embodiment of the present invention is on oil hydraulic cylinder 13 scene 2, inlet and connects an automatically controlled damping generation, device and fluid infusion cavity volume 16 and oil distributing valve group 15,17 thereof as shown in drawings.Automatically controlled damp generator 4,5 upper and lower ends respectively are provided with a fluid/magnetic flow liquid transducer 1,2,3 and 7,8,9.Its working principle is referring to accompanying drawing, when hydraulic damping cylinder is subjected to the external force elongation, fluid pressurized in the right chamber, enter the fluid chamber 1 of automatically controlled damp generator upper end transducer through pipeline 18, promote piston 2 and move down, the magnetic rheological liquid pressurized in the magnetorheological sap cavity 3 enters the magnetorheological sap cavity 9 of lower end transducer from parallel slit damp channel 5, pipeline 6, piston 8 moves up, and the fluid in the fluid chamber 7 enters the left chamber of hydraulic damping cylinder through pipeline 12.When hydraulic damping cylinder is shortened by external force, fluid pressurized in the chamber, a left side, enter the fluid chamber 7 of lower end transducer through pipeline 12, piston 8 moves down, magnetic rheological liquid pressurized in the magnetorheological sap cavity 9 is through pipeline 6, parallel slit damp channel 5 enters magnetic flow liquid body cavity 3, promotes to move on the piston 2, and the fluid in the fluid chamber 1 enters the right chamber of hydraulic damper through pipeline 18.Magnetic rheological liquid from parallel slit damp channel 5 through out-of-date, be input to the magnetic intensity that current value in the coil 4 just can change its output by control, variation has taken place with regard to the pressure that makes damping liquid, thereby make the damping force of hydraulic damping cylinder output controlled, realize the active or half ACTIVE CONTROL of the ouput force of damper, adapted to various vibration damping needs.When the fluid in the damper reduces because of reasons such as seepage, evaporations, give damped cylinder low-pressure cavity automatic liquid supply by the one-way valve 15 or 17 that links to each other with low-pressure cavity under the effect of compressed air pressure therein of fluid in the liquid storage cylinder, can increase the working life of damper greatly.
By the vibration damping object under the situation of multi-freedom-degree vibration, each damper can both be according to strength, spherical joint 10,18 and bearing 11,20 thereof by the damper two ends, automatically adjust its attitude, the multi-direction impact force of resisting, decay realizes multi-freedom degree damping vibration attenuation.
Claims (7)
1. multi-freedom degree magnetic rheological liquid damper: comprise the damp liquid cylinder pressure, controllable damping generator, fluid/magnetic flow liquid isolator, two kinds of working mediums of fluid and magnetic rheological liquid, liquid storage gas storage cavity and fluid infusion oil distributing valve group.It is split type to it is characterized in that hydraulic damping cylinder of the present invention and automatically controlled damp generator are designed to, and connects with high pressure hose or hard tube pipeline between two bodies.Working medium in the hydraulic damping cylinder is a fluid, and the working medium in the controllable damping generator is a magnetic rheological liquid.
2. MR damper according to claim 1 is characterized in that: damp generator is between upper and lower two fluid/magnetic rheological liquid isolating converter.Two fluid/magnetic rheological liquid transducer and damp generator liquid storage gas storage cavity and fluid infusion oil distributing valve group are one, the vertical installation.
3. MR damper according to claim 1 is characterized in that: the conversion of upper and lower two fluid/magnetic rheological liquid is with piston or capsule piston or capsule as isolation mounting, and the fluid chamber is on piston or capsule top, and magnetorheological sap cavity is in the bottom.
4. MR damper according to claim 1, it is characterized in that: magnetic rheological liquid all is mobile from the top down in two transducers, the bottom of the magnetorheological sap cavity of transducer is taper, the problem of the damping difference that the magnetic conduction powder inequality of having avoided the liquid precipitation accumulation to cause causes.
5. MR damper according to claim 1 is characterized in that: hydraulic damping cylinder is a double-rod structure, and two chamber bearing areas equate that when the impact force of bearing was identical, when load was identical, pressure wherein equated, is convenient to control.
6. MR damper according to claim 1 is characterized in that: the two ends of hydraulic damping cylinder are the spherical hinge linkage structure.Can realize the multi-freedom posture self-regulating, the power of output different direction is carried out damping vibration attenuation.
7. MR damper according to claim 1 is characterized in that: have the fluid infusion distributing device, and all can be at the low-pressure cavity automatic supplementing liquid.The fluid infusion chamber is arranged on the damp generator outside and forms annulated column shape cavity, or utilizes the accumulator fluid infusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101051434A CN101201091A (en) | 2006-12-12 | 2006-12-12 | Magnetic current damper with multiple degrees of freedom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101051434A CN101201091A (en) | 2006-12-12 | 2006-12-12 | Magnetic current damper with multiple degrees of freedom |
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| Publication Number | Publication Date |
|---|---|
| CN101201091A true CN101201091A (en) | 2008-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101051434A Pending CN101201091A (en) | 2006-12-12 | 2006-12-12 | Magnetic current damper with multiple degrees of freedom |
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| CN (1) | CN101201091A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104772782A (en) * | 2015-04-09 | 2015-07-15 | 河南职业技术学院 | Control system of circle cutting machine |
| CN105179572A (en) * | 2015-07-19 | 2015-12-23 | 常州大学 | Double-rod multistage-diffraction magneto-rheological damper |
| CN105179575A (en) * | 2015-07-19 | 2015-12-23 | 常州大学 | Double-rod multistage-piston self-adaptation magnetorheological damper |
-
2006
- 2006-12-12 CN CNA2006101051434A patent/CN101201091A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104772782A (en) * | 2015-04-09 | 2015-07-15 | 河南职业技术学院 | Control system of circle cutting machine |
| CN105179572A (en) * | 2015-07-19 | 2015-12-23 | 常州大学 | Double-rod multistage-diffraction magneto-rheological damper |
| CN105179575A (en) * | 2015-07-19 | 2015-12-23 | 常州大学 | Double-rod multistage-piston self-adaptation magnetorheological damper |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080618 |