CN103674530A - Device for testing performance of magnetorheological fluid damper - Google Patents
Device for testing performance of magnetorheological fluid damper Download PDFInfo
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- CN103674530A CN103674530A CN201310648803.3A CN201310648803A CN103674530A CN 103674530 A CN103674530 A CN 103674530A CN 201310648803 A CN201310648803 A CN 201310648803A CN 103674530 A CN103674530 A CN 103674530A
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- bolt
- type steel
- liquid damper
- magnetic rheological
- rheological liquid
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Abstract
The invention relates to a device for testing the performance of a magnetorheological fluid damper. The device comprises an L-shaped steel plate, a fixing block, a pressure sensor, a stepping motor, a coupler, a lead screw, L-shaped steel, a connecting slide block and a guide rail, wherein the L-shaped steel plate is fixed on a machine frame and fixedly connected with the magnetorheological fluid damper through a bolt B and a bolt C. A piston rod of the magnetorheological fluid damper is fixedly connected with the fixing block through a bolt C, the head portion of the bolt C abuts against the lower end of the pressure sensor. The fixing block is fixedly connected to the left end of the pressure sensor through two bolts D, and the right end of the pressure sensor is connected with the L-shaped steel through two bolts E. The L-shaped steel is connected with the connecting slide block through a bolt F, and the connecting slide block is connected with the stepping motor through the lead screw and the coupler. The device is simple in structure, convenient to operate and easy to maintain.
Description
Technical field
The present invention relates to a kind of damper, especially a kind of performance testing device of magnetic rheological liquid damper.
Background technology
Magnetic rheological liquid damper is a kind of intelligent damper of rising in recent years, and the research of magneto-rheological fluid damping vibration absorber cushion technique is become to one of focus instantly, and it is a kind of damping controllable devices, and its inner medium of filling is magnetic flow liquid.The chief component composition of magnetic flow liquid has magnetic-particle, carrier fluid and the stabilizing agent of micron order or nano-grade size size.The principle of work of magnetic rheological liquid damper is by regulating the electric current in field coil can obtain the magnetic field of varying strength, thereby changes the flow characteristics of magnetic flow liquid in damp channel.This mobility variations of magnetic flow liquid is continuous, reversible, that is to say, when there is a certain size magnetic field, magnetic flow liquid can show the complicated character such as visco-plasticity, viscoelasticity and class be solid-state; Once remove behind magnetic field, become again the Newtonian fluid of good fluidity, thereby can carry out active and half ACTIVE CONTROL to the damping force based on magnetic rheological liquid damper.The feature such as that the damper based on magnetic flow liquid has is low in energy consumption, fast response time, range of adjustment are wide, simple in structure, has broad prospect of application at structural vibration control engineering field.The mechanical property of magnetic flow liquid has determined that it is in the concrete application of engineering field, so very crucial to the test of its mechanical property.In order better to obtain the mechanical performance data of magnetic rheological liquid damper, the installation method of the magnetic rheological liquid damper in test seems most important.
Summary of the invention
The object of the present invention is to provide a kind of device of magnetic rheological liquid damper performance test, this device can obtain more accurately the mechanical performance data of magnetic rheological liquid damper in experimentation.
For achieving the above object, the present invention adopts following technical proposals: a kind of performance testing device of magnetic rheological liquid damper, comprise L-type steel plate, fixed block, pressure transducer, stepper motor, shaft coupling, leading screw, L-type steel, connection sliding block, guide rail, be characterized in: L-type steel plate is fixed in frame, L-type steel plate is fixedly connected with magnetic rheological liquid damper by bolt B, bolt C; The piston rod of magnetic rheological liquid damper is fixedly connected with fixed block by bolt C, and bolt C head withstands on the lower end of pressure transducer; Fixed block is fixedly connected on pressure transducer left end by two bolt D, and the right-hand member of pressure transducer links together by two bolt E and L-type steel; L-type steel links together by bolt F and connection sliding block, and connection sliding block is connected stepper motor by leading screw with shaft coupling.
Magnetic rheological liquid damper comprises PTFE packing ring, copper washer, magnetic flow liquid, cavity, copper coil, O type circle, end cap, piston rod, the center section of piston rod has an annular groove, annular groove place is around upper copper coil, and be placed in cavity, between cavity and piston rod two ends, with copper washer, PTFE packing ring and O type circle, be tightly connected.
The present invention compared with prior art, has following beneficial effect:
First, the present invention has utilized L-type end cap to realize being connected of magnetic rheological liquid damper and L-type steel plate; Secondly, the present invention is by utilizing L-type steel plate to be fixedly connected with ground, thereby realized the vertical placement of magnetic rheological liquid damper in subsequent installation process, to meet the requirement that Mechanics Performance Testing is tested; Then be that the present invention is by utilizing L-type steel that pressure transducer and guide rail connection sliding block are coupled together, to realize the test to magnetic rheological liquid damper mechanical property test; Finally, the present invention has utilized fixed block, by bolt (an additional bolt), magnetic rheological liquid damper and pressure transducer is linked together, and has solved the problem that magnetic rheological liquid damper is connected with pressure transducer.The present invention is simple in structure, make easy to operate, be also easy to safeguard.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the magnetic rheological liquid damper wiring layout in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As Fig. 1, shown in 2, the performance testing device of magnetic rheological liquid damper of the present invention, comprises L-type steel plate 10, bolt A11, bolt B 13, fixed block 14, pressure transducer 15, bolt C16, bolt D17, stepper motor 18, shaft coupling 19, leading screw 20, bolt E21, L-type steel 22, bolt F23, connection sliding block 24, guide rail 25.
L-type steel plate 10 is fixed in frame by bolt A11, thereby has realized the vertical placement of magnetic rheological liquid damper 30 in subsequent installation process; L-type steel plate 10 couples together by bolt B 12, bolt C13 and magnetic rheological liquid damper 30; The piston rod 9 of magnetic rheological liquid damper 30 is fixedly connected with fixed block 14 by bolt C16, and bolt C16 head withstands on the lower end of pressure transducer 15; Fixed block 14 is fixedly connected on pressure transducer 15 left ends by two bolt D17, has solved the connectivity problem of magnetic rheological liquid damper 30 with pressure transducer 15; The right-hand member of pressure transducer 15 links together by two bolt E21 and L-type steel 22; L-type steel 22 links together by four bolt F23 and connection sliding block 24, and connection sliding block 24 is connected stepper motor 18 by leading screw 20 with shaft coupling 19, can on guide rail 25, move up and down.
As shown in Figure 3, magnetic rheological liquid damper 30, comprises PTFE packing ring 1, copper washer 2, magnetic flow liquid 3, cavity 4, copper coil 5, O type circle 6, end cap 7, bolt 8, piston rod 9.
Center section at piston rod 9 has an annular groove, annular groove place around on the copper coil 5 of certain number of turn, then put it into cavity 4 the insides, then pad upper copper washer 2, and then by PTFE packing ring 1 and O type circle 6, carry out encapsulation process, the upper L-type end cap 7 of finally assembling completes the assembling of magnetic rheological liquid damper.
The principle of work of the performance test structure of the magnetic rheological liquid damper in the present invention:
First switch on power, start stepper motor 18, stepper motor 18 drives leading screw 20 to rotate by shaft coupling 19, and connection sliding block 24 just can carry out upper and lower rectilinear motion on guide rail 25 like this; Because L-type steel 22 and connection sliding block 24 are fixed together, pressure transducer 15 links together with L-type steel 22; Magnetic rheological liquid damper piston rod 9 links together with pressure sensing 15, so the motion of connection sliding block 24 can drive piston rod 9 to carry out upper and lower vertical movement by being attached thereto the L-type steel 22, pressure transducer 15, the fixed block 14 that connect, so, only the electric current of varying strength need to be passed to magnetic rheological liquid damper, the mechanical performance data of magnetic rheological liquid damper under different electric currents can be collected by the distortion of pressure transducer.
Claims (2)
1. the performance testing device of a magnetic rheological liquid damper, comprise L-type steel plate (10), fixed block (14), pressure transducer (15), stepper motor (18), shaft coupling (19), leading screw (20), L-type steel (22), connection sliding block (24), guide rail (25), it is characterized in that: described L-type steel plate (10) is fixed in frame, L-type steel plate (10) is fixedly connected with magnetic rheological liquid damper (30) by bolt B (12), bolt C (13); The piston rod (9) of magnetic rheological liquid damper (30) is fixedly connected with fixed block (14) by bolt C (16), and bolt C (16) head withstands on the lower end of pressure transducer (15); Fixed block (14) is fixedly connected on pressure transducer (15) left end by two bolt D (17), and the right-hand member of pressure transducer (15) links together with L-type steel (22) by two bolt E (21); L-type steel (22) links together with connection sliding block (24) by bolt F (23), and connection sliding block (24) is connected stepper motor (18) by leading screw (20) with shaft coupling (19).
2. the performance testing device of magnetic rheological liquid damper according to claim 1, it is characterized in that: described magnetic rheological liquid damper 30 comprises PTFE packing ring (1), copper washer (2), magnetic flow liquid (3), cavity (4), copper coil (5), O type circle (6), end cap (7), piston rod (9), the center section of piston rod (9) has an annular groove, annular groove place is around upper copper coil (5), and be placed in cavity (4), between cavity (4) and piston rod (9) two ends, use copper washer (2), PTFE packing ring (1) and O type circle (6) are tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310648803.3A CN103674530A (en) | 2013-12-06 | 2013-12-06 | Device for testing performance of magnetorheological fluid damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310648803.3A CN103674530A (en) | 2013-12-06 | 2013-12-06 | Device for testing performance of magnetorheological fluid damper |
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| Publication Number | Publication Date |
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| CN103674530A true CN103674530A (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310648803.3A Pending CN103674530A (en) | 2013-12-06 | 2013-12-06 | Device for testing performance of magnetorheological fluid damper |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545912A (en) * | 2016-03-02 | 2016-05-04 | 孙美娜 | Magnetorheological-effect-based line-shaped bolt with pretightening force adjusting function |
| CN105570263A (en) * | 2016-03-02 | 2016-05-11 | 孙美娜 | Outer hexagonal bolt with adjustable pre-tightening function based on magneto-rheological effect |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5942673A (en) * | 1996-05-24 | 1999-08-24 | Hitachi, Ltd. | Vehicle testing system and testing method |
| CN102721550A (en) * | 2012-07-12 | 2012-10-10 | 湖南师范大学 | Test device of automobile magnetorheological suspension system |
| CN102735486A (en) * | 2012-06-29 | 2012-10-17 | 湖南师范大学 | Device for testing indicator characteristic of magnetorheological damper |
| CN102788110A (en) * | 2012-08-17 | 2012-11-21 | 上海应用技术学院 | Dual-rod magnetorheological fluid damper and seal structure thereof |
| CN203643144U (en) * | 2013-12-06 | 2014-06-11 | 上海应用技术学院 | Performance testing device of magneto-rheological fluid damper |
-
2013
- 2013-12-06 CN CN201310648803.3A patent/CN103674530A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5942673A (en) * | 1996-05-24 | 1999-08-24 | Hitachi, Ltd. | Vehicle testing system and testing method |
| CN102735486A (en) * | 2012-06-29 | 2012-10-17 | 湖南师范大学 | Device for testing indicator characteristic of magnetorheological damper |
| CN102721550A (en) * | 2012-07-12 | 2012-10-10 | 湖南师范大学 | Test device of automobile magnetorheological suspension system |
| CN102788110A (en) * | 2012-08-17 | 2012-11-21 | 上海应用技术学院 | Dual-rod magnetorheological fluid damper and seal structure thereof |
| CN203643144U (en) * | 2013-12-06 | 2014-06-11 | 上海应用技术学院 | Performance testing device of magneto-rheological fluid damper |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545912A (en) * | 2016-03-02 | 2016-05-04 | 孙美娜 | Magnetorheological-effect-based line-shaped bolt with pretightening force adjusting function |
| CN105570263A (en) * | 2016-03-02 | 2016-05-11 | 孙美娜 | Outer hexagonal bolt with adjustable pre-tightening function based on magneto-rheological effect |
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| CB03 | Change of inventor or designer information |
Inventor after: Liu Xuhui Inventor after: Yu Hao Inventor after: Ye Dun Inventor after: Gao Xiaoli Inventor after: Yu Songjie Inventor before: Liu Xuhui Inventor before: Yu Hao Inventor before: Ye Dun Inventor before: Gao Xiaoli |
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Free format text: CORRECT: INVENTOR; FROM: LIU XUHUI YU HAO YE DUN GAO XIAOLI TO: LIU XUHUI YU HAO YE DUN GAO XIAOLI YU SONGJIE |
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Application publication date: 20140326 |