CN104458203A - Piston type testing device for squeezing flow dynamic characteristics of magnetorheological fluid - Google Patents
Piston type testing device for squeezing flow dynamic characteristics of magnetorheological fluid Download PDFInfo
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- CN104458203A CN104458203A CN201410620803.7A CN201410620803A CN104458203A CN 104458203 A CN104458203 A CN 104458203A CN 201410620803 A CN201410620803 A CN 201410620803A CN 104458203 A CN104458203 A CN 104458203A
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Abstract
The invention discloses a piston type testing device for the squeezing flow dynamic characteristics of magnetorheological fluid. The testing device comprises an upper flange plate 1, an upper end cover 2, an upper connecting bolt 3, an upper piston rod 4, a piston 5, a lower piston rod 6, a locating sleeve 7, a magnet exciting coil 8, a lower end cover 9, a lower connecting bolt 10, a lower flange plate 11 and a plurality of sealing rings. The fluid to be tested is contained in an airtight working cavity A formed by the upper end cover 2, the lower end cover 9 and the locating sleeve 7. The piston 5 is clamped by the shaft shoulder of the upper piston rod 4 and the shaft shoulder of the lower piston rod 6 and arranged in the working cavity A, and the upper piston rod 4 and the lower piston rod 6 move vertically to drive the piston 5 to squeeze the fluid to be tested in the working cavity A. The testing device is used for testing the squeezing flow dynamic characteristics of the magnetorheological fluid in a quasi-static state, a dynamic state and particularly a high-frequency vibrating state.
Description
Technical field
The invention belongs to dynamic characterization measurement technical field, be specifically related to a kind of piston magneto-rheological liquid squeezing flow dynamic property test device on actuating vibration table.
Background technology
Magnetic flow liquid is widely used in various engineering apparatus and equipment.The pressure produced under other patterns of the pressure ratio produced under magnetic flow liquid squeeze mode all wants high, can be used as isolating the little and vibration that dynamic loading is larger of amplitude.Its squeezing flow dynamics directly affects the performance of application apparatus.At present the research major part of magnetic flow liquid compression properties is confined to the dynamic perfromance under static state, quasistatic process or low-frequency excitation, shortage is compared to the Research on Dynamic Characteristic of squeezing flow magnetorheological under high frequency pumping.In addition, the structure and material for proving installation self is not yet illustrated on the impact of magnetic field magnetic circuit and to the affecting laws of magnetic flow liquid squeezing flow dynamics.
Summary of the invention
The object of the invention is the proving installation designing a kind of magnetic flow liquid or other fluid homalographic squeezing flow dynamicss, the magnetic flow liquid squeezing flow dynamics especially under high frequency pumping.
The present invention is achieved through the following technical solutions:
A kind of piston magneto-rheological liquid squeezing flow dynamic property test device, comprise upper flange plate 1, upper end cover 2, upper coupling bolt 3, upper piston rod 4, piston 5, lower piston rod 6, abutment sleeve 7, field coil 8, bottom end cover 9, lower coupling bolt 10, lower flange 11 and multiple O-ring seal, the airtight working chamber A formed by described upper end cover 2, bottom end cover 9 and abutment sleeve 7, working chamber A is built with treating fluid measured;
Described piston 5 is clamped by the shaft shoulder of upper piston rod 4 and lower piston rod 6, and it is inner that piston 5 is arranged on working chamber A, and upper piston rod 4 and lower piston rod 6 move up and down, and then drives the testing liquid in piston 5 couples of working chamber A to extrude;
The upper end cover unthreaded hole 2a of described upper end cover 2 coordinates with upper piston rod 4, seals and lead to upper piston rod 4; The bottom end cover unthreaded hole 9a of described bottom end cover 9 coordinates with lower piston rod 6, leads and seal lower piston rod 6; Described lower flange 11 is fixedly connected with lower piston rod 6; Described upper end cover 2 is fixedly connected with upper flange plate 1; Described upper flange plate 1 and lower flange 11 are fixed with the fixed part of vibration table and actuator respectively and are connected;
Described field coil 8 is fixedly installed in outside working chamber A, is positioned by the coil location unthreaded hole 2b of bottom end cover 9, abutment sleeve 7 and upper end cover 2, and field coil 8 produces magnetic field after being energized in working chamber A.
Described upper piston rod 4 and lower piston rod 6 adopt NULL, and piston 5 adopts permeability magnetic material; Upper end cover 2 and bottom end cover 9 adopt permeability magnetic material, form closed-loop path, magnetic field, improve the magnetic field intensity at working chamber A place; Upper flange plate 1 and lower flange 11 adopt NULL simultaneously.
Described bottom end cover 9 is connected with upper end cover 2 by lower coupling bolt 10; Described bottom end cover 9 is also provided with bottom end cover optical axis 9b, forms coaxial cooperation with the location unthreaded hole 2c on upper end cover 2;
Described bottom end cover 9 is also provided with static seal groove 9c, inner installation O-ring seal; Described bottom end cover 9 is also provided with fairlead 9d and filling orifice 9e, fairlead 9d utilizes fluid sealant to realize sealing, and filling orifice 9e utilizes hexagon socket head cap screw and rubber sheet gasket to seal.
Described upper piston rod 4 is connected by screw thread with lower piston rod 6, and coordinates guarantee right alignment by upper piston rod optical axis 4c and lower piston rod unthreaded hole 6c; Described lower piston rod 6 is also provided with lower piston rod and coordinates optical axis 6d, coordinates ensure right alignment with the unthreaded hole on piston 5, and by shaft shoulder clamping piston 5.
Described upper piston rod 4 is provided with seal groove 4a and upper piston rod lower seal groove cavity 4b on upper piston rod, described lower piston rod 6 is provided with seal groove 6a and lower piston rod lower seal groove cavity 6b on lower piston rod, in all seal grooves, O-ring seal is installed, motive seal is carried out to piston rod 4.
Alternatively, described upper end cover 2 and bottom end cover 9 are provided with boss, and boss outside surface is processed with seal groove, is provided with O-ring seal, seals testing liquid between seal groove and abutment sleeve 7.
Alternatively, described upper end cover 2 and the inner face of bottom end cover 9 are provided with seal groove, be provided with O-ring seal, seal testing liquid between seal groove and abutment sleeve 7.
Alternatively, described piston 5 adopts organizes various outer diameter more, realizes the testing liquid homalographic squeezing flow dynamic characterization measurement of different useful area.
Alternatively, described piston 5 adopts organizes different-thickness more, realizes the testing liquid homalographic squeezing flow dynamic characterization measurement of different primary clearance.
The course of work of the present invention is as follows:
First, in working chamber A, magnetic rheological liquid to be measured is loaded;
Then the upper flange plate 1 of described contrive equipment is connected with the load transducer of vibration table, thus it is fixing that whole proving installation is hung.Lower flange 11 is connected as moved end with vibration table, when vibration table start, drives piston component to move reciprocatingly, and completes the Bidirectional-squeezing motion of magnetic rheological liquid in piston 5 couples of working chamber A.The load transducer Real-Time Monitoring of vibration table also records experimental provision response in test and dynamics.The vibration signal exported by changing vibration table can test the magnetic flow liquid squeezing flow dynamics under quasi-static, dynamic especially high-frequency excitation; Magnetic flow liquid squeezing flow dynamics under different magnetic field intensity can be tested by controlling the electrical current size of field coil 8; The homalographic magnetic flow liquid squeezing flow dynamics of different squish area and different primary clearance can be tested by changing piston; Also the environmental cabinet temperature of adjustable vibration table, research temperature is to the affecting laws of magnetic flow liquid squeezing flow dynamics.
Beneficial effect of the present invention is:
1, apparatus of the present invention may be used for test quasistatic, dynamically especially magnetic flow liquid squeezing flow dynamics under high-frequency excitation;
2, apparatus of the present invention compare with existing infiltration type proving installation, have employed closed structure, avoid magnetic flow liquid to contact with air, and the hole that when avoiding to-and-fro movement, dissolved air produces and cavitation erosion, eliminate the impact of air on test findings.
3, piston rod is designed to upper and lower two parts by apparatus of the present invention, utilizes extruding force fixed piston, and piston dismounting and replacing conveniently, are convenient to research piston coverage area to the affecting laws of magnetic flow liquid squeezing flow dynamics; Piston rod adopts NULL simultaneously, and piston adopts permeability magnetic material, optimizes the magnetic circuit of apparatus of the present invention, enhances the magnetic field intensity at magnetic flow liquid place; Piston rod has seal groove simultaneously, for mounting O-shaped O-ring seal, improve processing technology.
4, apparatus of the present invention piston cylinder main part maintains static, and Bidirectional-squeezing liquid is made in piston component to-and-fro movement, the impact of large quality piston cylinder inertial force under avoiding high-frequency excitation.
5, the upper end cover of apparatus of the present invention, bottom end cover and piston adopt permeability magnetic material, form closed-loop path, efficient magnetic field, improve the magnetic field intensity of target area; Upper flange plate and lower flange adopt NULL simultaneously, effectively prevent the interference of contrive equipment magnetic field to testing apparatus.
Accompanying drawing explanation
Fig. 1 is one-piece construction cut-open view of the present invention
Fig. 2 is the sectional view of upper flange plate
Fig. 3 is the sectional view of upper end cover
Fig. 4 is the front elevation of upper piston rod
Fig. 5 is the part sectioned view of lower piston rod
Fig. 6 is the sectional view of bottom end cover
Fig. 7 is upper end cover of the present invention and bottom end cover one-piece construction cut-open view when being provided with boss
Fig. 8 is upper end cover of the present invention and bottom end cover one-piece construction cut-open view when being provided with seal groove
In figure:
1, upper flange plate; 2, upper end cover; 3, upper coupling bolt; 4, upper piston rod; 5, piston;
6, lower piston rod; 7, abutment sleeve; 8, field coil; 9, bottom end cover;
10, lower coupling bolt; 11, lower flange;
A, working chamber; A, b, c, d, e are O-ring seal;
1a, air hole; 2a, upper end cover unthreaded hole; 2b, coil location unthreaded hole; 2c, location unthreaded hole;
Seal groove on 4a, upper piston rod; 4b, upper piston rod lower seal groove cavity;
4c, upper piston rod optical axis; Seal groove on 6a, lower piston rod;
6b, lower piston rod lower seal groove cavity; 6c, lower piston rod unthreaded hole; 6d, lower piston rod optical axis;
9a, bottom end cover unthreaded hole; 9b, bottom end cover optical axis; 9c, static seal groove;
9d, fairlead; 9e, filling orifice.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
As shown in Figure 1, a kind of piston magneto-rheological liquid squeezing flow dynamic property test device of the present invention, comprise upper flange plate 1, upper end cover 2, upper coupling bolt 3, upper piston rod 4, piston 5, lower piston rod 6, abutment sleeve 7, field coil 8, bottom end cover 9, lower coupling bolt 10, lower flange 11 and multiple O-ring seal, the airtight working chamber A formed by upper end cover 2, bottom end cover 9 and abutment sleeve 7, working chamber A are built with treating fluid measured (magnetic flow liquid or other treat fluid measured);
Described piston 5 is arranged in working chamber A, and piston 5 is clamped by the shaft shoulder of upper piston rod 4 and lower piston rod 6, and upper piston rod 4 and lower piston rod 6 move up and down, and then the testing liquid in piston 5 couples of working chamber A extrudes;
Described upper flange plate 1 is connected with vibration table with lower flange 11;
Be illustrated in figure 2 the cut-open view of described upper flange plate 1, as seen its sidewall be processed with air hole 1a;
Described upper end cover 2 is connected by upper coupling bolt 3 with upper flange plate 1; As shown in Figure 3, described upper end cover 2 is designed to long tubular, plays the effect of outer cylinder simultaneously; The upper end cover unthreaded hole 2a of described upper end cover 2 coordinates with upper piston rod 4, seals and lead to upper piston rod 4;
Described field coil 8 is fixedly installed on bottom end cover 9, produces magnetic field after energising in working chamber A, is positioned by the coil location unthreaded hole 2b of upper end cover 2 simultaneously; Be provided with abutment sleeve 7 inside described field coil 8, field coil 8 is positioned;
As shown in Figure 6, the bottom end cover unthreaded hole 9a of described bottom end cover 9 coordinates with lower piston rod 6, leads and seal lower piston rod 6; Described bottom end cover 9 is also provided with bottom end cover optical axis 9b, forms coaxial cooperation with the location unthreaded hole 2c on upper end cover 2;
Described bottom end cover 9 is connected with upper end cover 2 by lower coupling bolt 10;
Described lower flange 11 is connected with lower piston rod 6 by screw thread;
Described bottom end cover 9 is also provided with static seal groove 9c, for installing O-ring seal, the static seal of implement device;
Described bottom end cover 9 is also provided with fairlead 9d and filling orifice 9e, fairlead 9d utilizes fluid sealant to realize sealing, and filling orifice 9e utilizes hexagon socket head cap screw and rubber sheet gasket to seal;
Preferably, described upper piston rod 4 and lower piston rod 6 adopt NULL, and piston 5 adopts permeability magnetic material; Upper end cover 2 and bottom end cover 9 adopt permeability magnetic material, form closed-loop path, efficient magnetic field, improve the magnetic field intensity of target area; Upper flange plate 1 and lower flange 11 adopt NULL simultaneously, effectively prevent the interference of apparatus of the present invention magnetic field to testing apparatus.
Described upper piston rod 4 is connected by screw thread with lower piston rod 6, and coordinates guarantee right alignment by upper piston rod optical axis 4c and lower piston rod unthreaded hole 6c; Described lower piston rod 6 is also provided with lower piston rod and coordinates optical axis 6d, and it coordinates with the unthreaded hole on piston 5 and ensures right alignment, and passes through shaft shoulder clamping piston 5.
Preferably, as shown in Figure 4 and Figure 5, described upper piston rod 4 is provided with seal groove 4a and upper piston rod lower seal groove cavity 4b on upper piston rod, and described lower piston rod 6 is provided with seal groove 6a and lower piston rod lower seal groove cavity 6b on lower piston rod, for installing O-ring seal, realize piston rod motive seal.
Preferably, described piston 5 is designed to the magnetic flow liquid homalographic squeezing flow dynamic characterization measurement that various outer diameter can realize different useful area, and described piston 5 is designed to the magnetic flow liquid homalographic squeezing flow dynamic characterization measurement that different-thickness can realize different primary clearance.
Optionally, upper end cover 2 can be threaded with the connected mode of upper flange plate 1, and interference connects, welding; Upper end cover 2 can be threaded with the connected mode of bottom end cover 9, and interference connects, welding;
Optionally, the seal groove laying O-ring seal a, b, c, d can be located on upper end cover 2 and bottom end cover 9, and the seal groove laying O-ring seal d can be located on upper end cover 2;
Optionally, as shown in Figure 7, described upper end cover 2 and bottom end cover 9 are provided with boss, and boss outside surface is processed with seal groove, is provided with O-ring seal, seals testing liquid between seal groove and abutment sleeve 7.Can prevent testing liquid from entering into field coil 8, reduce the seal request of field coil fairlead 9d, simplify assembly technology;
Optionally, as shown in Figure 8, described upper end cover 2 and the inner face of bottom end cover 9 are provided with seal groove, be provided with O-ring seal, seal testing liquid between seal groove and abutment sleeve 7.Processing technology is good, and can prevent testing liquid from entering into field coil 8, reduces the seal request of field coil fairlead 9d, simplifies assembly technology.
The course of work of the present invention is as follows:
First, in working chamber A, magnetic rheological liquid to be measured is loaded;
Then the upper flange plate 1 of described contrive equipment is connected with the load transducer of vibration table, thus it is fixing that whole proving installation is hung.Lower flange 11 is connected as moved end with vibration table, when vibration table start, drives piston component to move reciprocatingly, and completes the Bidirectional-squeezing motion of magnetic rheological liquid in piston 5 couples of working chamber A.The load transducer Real-Time Monitoring of vibration table also records experimental provision response in test and dynamics.The vibration signal exported by changing vibration table can test the magnetic flow liquid squeezing flow dynamics under quasi-static, dynamic especially high-frequency excitation; Magnetic flow liquid squeezing flow dynamics under different magnetic field intensity can be tested by controlling the electrical current size of field coil 8; The homalographic magnetic flow liquid squeezing flow dynamics of different squish area and different primary clearance can be tested by changing piston; Also the environmental cabinet temperature of adjustable vibration table, research temperature is to the affecting laws of magnetic flow liquid squeezing flow dynamics.
Claims (9)
1. a piston magneto-rheological liquid squeezing flow dynamic property test device, comprise upper flange plate (1), upper end cover (2), upper coupling bolt (3), upper piston rod (4), piston (5), lower piston rod (6), abutment sleeve (7), field coil (8), bottom end cover (9), lower coupling bolt (10), lower flange (11) and multiple O-ring seal, it is characterized in that:
The airtight working chamber (A) formed by described upper end cover (2), bottom end cover (9) and abutment sleeve (7), working chamber (A) is built with treating fluid measured;
Described piston (5) is clamped by the shaft shoulder of upper piston rod (4) and lower piston rod (6), it is inner that piston (5) is arranged on working chamber (A), upper piston rod (4) and lower piston rod (6) move up and down, and then drive piston (5) to extrude the testing liquid in working chamber (A);
The upper end cover unthreaded hole (2a) of described upper end cover (2) coordinates with upper piston rod (4), seals upper piston rod (4) and leads; The bottom end cover unthreaded hole (9a) of described bottom end cover (9) coordinates with lower piston rod (6), leads to lower piston rod (6) and seals; Described lower flange (11) is fixedly connected with lower piston rod (6); Described upper end cover (2) is fixedly connected with upper flange plate (1); Described upper flange plate (1) and lower flange (11) are fixed with the fixed part of vibration table and actuator respectively and are connected;
Described field coil (8) is fixedly installed in working chamber (A) outside, positioned by the coil location unthreaded hole (2b) of bottom end cover (9), abutment sleeve (7) and upper end cover (2), after field coil (8) energising, in working chamber (A), produce magnetic field.
2. a kind of piston magneto-rheological liquid squeezing flow dynamic property test device according to claim 1, is characterized in that:
Described upper piston rod (4) and lower piston rod (6) adopt NULL, and piston (5) adopts permeability magnetic material; Upper end cover (2) and bottom end cover (9) adopt permeability magnetic material, form closed-loop path, magnetic field, improve the magnetic field intensity at working chamber (A) place; Upper flange plate (1) and lower flange (11) adopt NULL simultaneously.
3. a kind of piston magneto-rheological liquid squeezing flow dynamic property test device according to claim 1, is characterized in that:
Described bottom end cover (9) is connected with upper end cover (2) by lower coupling bolt (10); Described bottom end cover (9) is also provided with bottom end cover optical axis (9b), forms coaxial cooperation with the location unthreaded hole (2c) on upper end cover (2);
Described bottom end cover (9) is also provided with static seal groove (9c), inner installation O-ring seal; Described bottom end cover (9) is also provided with fairlead (9d) and filling orifice (9e), fairlead (9d) utilizes fluid sealant to realize sealing, and filling orifice (9e) utilizes hexagon socket head cap screw and rubber sheet gasket to seal.
4. a kind of piston magneto-rheological liquid squeezing flow dynamic property test device according to claim 1, is characterized in that:
Described upper piston rod (4) is connected by screw thread with lower piston rod (6), and coordinates guarantee right alignment by upper piston rod optical axis (4c) and lower piston rod unthreaded hole (6c); Described lower piston rod (6) is also provided with lower piston rod and coordinates optical axis (6d), coordinates ensure right alignment with the unthreaded hole on piston (5), and by shaft shoulder clamping piston (5).
5. a kind of piston magneto-rheological liquid squeezing flow dynamic property test device according to claim 1, is characterized in that:
Described upper piston rod (4) is provided with seal groove on upper piston rod (4a) and upper piston rod lower seal groove cavity (4b), described lower piston rod (6) is provided with seal groove on lower piston rod (6a) and lower piston rod lower seal groove cavity (6b), in all seal grooves, O-ring seal is installed, motive seal is carried out to piston rod (4).
6. a kind of piston magneto-rheological liquid squeezing flow dynamic property test device according to claim 1, is characterized in that:
Described upper end cover (2) and bottom end cover (9) are provided with boss, and boss outside surface is processed with seal groove, is provided with O-ring seal, seals testing liquid between seal groove and abutment sleeve (7).
7. a kind of piston magneto-rheological liquid squeezing flow dynamic property test device according to claim 1, is characterized in that:
Described upper end cover (2) and the inner face of bottom end cover (9) are provided with seal groove, be provided with O-ring seal, seal testing liquid between seal groove and abutment sleeve (7).
8. a kind of piston magneto-rheological liquid squeezing flow dynamic property test device according to any one of claim 1 to 7, is characterized in that:
Described piston (5) adopts and organizes various outer diameter more, realizes the testing liquid homalographic squeezing flow dynamic characterization measurement of different useful area.
9. a kind of piston magneto-rheological liquid squeezing flow dynamic property test device according to any one of claim 1 to 7, is characterized in that:
Described piston (5) adopts and organizes different-thickness more, realizes the testing liquid homalographic squeezing flow dynamic characterization measurement of different primary clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410620803.7A CN104458203B (en) | 2014-11-05 | 2014-11-05 | Piston type testing device for squeezing flow dynamic characteristics of magnetorheological fluid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410620803.7A CN104458203B (en) | 2014-11-05 | 2014-11-05 | Piston type testing device for squeezing flow dynamic characteristics of magnetorheological fluid |
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| CN104458203A true CN104458203A (en) | 2015-03-25 |
| CN104458203B CN104458203B (en) | 2017-01-25 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776153A (en) * | 2015-04-21 | 2015-07-15 | 合肥工业大学 | Magnetorheological fluid suspension based on unidirectional pressing mode |
| CN104963982A (en) * | 2015-06-19 | 2015-10-07 | 中国人民解放军装甲兵工程学院 | Rotary extrusion type magnetorheological damper |
| CN110082053A (en) * | 2019-06-05 | 2019-08-02 | 中国工程物理研究院总体工程研究所 | The wideband excitation system based on embedded hydraulic cylinder under degree of being suited to speed up environment |
| CN110231142A (en) * | 2019-06-24 | 2019-09-13 | 苏州东菱科技有限公司 | A kind of pressure simulation experimental rig |
| CN117079533A (en) * | 2023-10-16 | 2023-11-17 | 中国石油大学(华东) | CO accounting for reservoir stress time-varying effects 2 Experimental device for water layer buries |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030066341A1 (en) * | 2000-05-18 | 2003-04-10 | Rheologics, Inc. | Electrorheological and magnetorheological fluid scanning rheometer |
| CN1553998A (en) * | 2001-09-07 | 2004-12-08 | ������ʿ�ֹɷ�����˾ | Magneto-rheological damper |
| CN101551316A (en) * | 2009-05-15 | 2009-10-07 | 南京理工大学 | Rheological characteristic measuring device of magnetorheological fluid under the condition of high-speed flow |
| CN102121509A (en) * | 2010-12-09 | 2011-07-13 | 重庆大学 | Magnetorheological damper with annular and disc-shaped liquid flow resistance channels simultaneously |
| CN102661353A (en) * | 2012-05-30 | 2012-09-12 | 石家庄铁道大学 | Magnetorheological damper with convenience in assembly and disassembly of coil component |
-
2014
- 2014-11-05 CN CN201410620803.7A patent/CN104458203B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030066341A1 (en) * | 2000-05-18 | 2003-04-10 | Rheologics, Inc. | Electrorheological and magnetorheological fluid scanning rheometer |
| CN1553998A (en) * | 2001-09-07 | 2004-12-08 | ������ʿ�ֹɷ�����˾ | Magneto-rheological damper |
| CN101551316A (en) * | 2009-05-15 | 2009-10-07 | 南京理工大学 | Rheological characteristic measuring device of magnetorheological fluid under the condition of high-speed flow |
| CN102121509A (en) * | 2010-12-09 | 2011-07-13 | 重庆大学 | Magnetorheological damper with annular and disc-shaped liquid flow resistance channels simultaneously |
| CN102661353A (en) * | 2012-05-30 | 2012-09-12 | 石家庄铁道大学 | Magnetorheological damper with convenience in assembly and disassembly of coil component |
Non-Patent Citations (1)
| Title |
|---|
| 骆静: "基于挤压模式的磁流变液悬置及发动机隔振控制系统研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776153A (en) * | 2015-04-21 | 2015-07-15 | 合肥工业大学 | Magnetorheological fluid suspension based on unidirectional pressing mode |
| CN104963982A (en) * | 2015-06-19 | 2015-10-07 | 中国人民解放军装甲兵工程学院 | Rotary extrusion type magnetorheological damper |
| CN110082053A (en) * | 2019-06-05 | 2019-08-02 | 中国工程物理研究院总体工程研究所 | The wideband excitation system based on embedded hydraulic cylinder under degree of being suited to speed up environment |
| CN110082053B (en) * | 2019-06-05 | 2023-11-10 | 中国工程物理研究院总体工程研究所 | Broadband excitation system based on embedded hydraulic cylinder and suitable for acceleration environment |
| CN110231142A (en) * | 2019-06-24 | 2019-09-13 | 苏州东菱科技有限公司 | A kind of pressure simulation experimental rig |
| CN117079533A (en) * | 2023-10-16 | 2023-11-17 | 中国石油大学(华东) | CO accounting for reservoir stress time-varying effects 2 Experimental device for water layer buries |
| CN117079533B (en) * | 2023-10-16 | 2024-01-19 | 中国石油大学(华东) | CO accounting for reservoir stress time-varying effects 2 Experimental device for water layer buries |
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| CN104458203B (en) | 2017-01-25 |
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