CN102735486B - Device for testing indicator characteristic of magnetorheological damper - Google Patents
Device for testing indicator characteristic of magnetorheological damper Download PDFInfo
- Publication number
- CN102735486B CN102735486B CN201210219045.9A CN201210219045A CN102735486B CN 102735486 B CN102735486 B CN 102735486B CN 201210219045 A CN201210219045 A CN 201210219045A CN 102735486 B CN102735486 B CN 102735486B
- Authority
- CN
- China
- Prior art keywords
- damper
- cam
- channel steel
- steel upright
- upright post
- 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.)
- Expired - Fee Related
Links
Abstract
The invention discloses a device for testing the indicator characteristic of a magnetorheological damper. The device comprises a mechanical rack, a cam excitation unit, a magnetorheological damper power supply system and a sensor testing system. The testing device has a simple integral electromechanical structure, particularly a cam transmission mechanism is a combined integral flat-bottomed transmission mechanism, and compared with a rectangular frame structure in the traditional constant-breadth cam mechanism, the structure has the advantages that the device is convenient to assemble and disassemble and easy to process and manufacture; the cost of a variable frequency speed regulation system which is the common three-phase asynchronous motor is lower than that of a variable frequency speed regulation motor; and the device can test the indicator characteristic and speed characteristic of the magnetorheological damper, has stable and reliable working performance, and is simple and practical.
Description
Technical field
The present invention relates to a kind of dynamo-electric proving installation, relate in particular to a kind of MR damper and show merit characteristic test device.
Background technology
MR damper is a kind of semi-active damper part that adopts intelligent controlled fluid one magnetic flow liquid, and its damping force size is regulated and controled by its drive current, is widely used in the structural vibration reduction control fields such as automobile, bridge, building.Main contents of MR damper test are exactly that it shows the measurement of (claiming again drag characteristic) of merit characteristic, and MR damper is under the stroke and test frequency of regulation, and relative simple harmonic motion is done at two ends, and its resistance is with the variation characteristic of displacement.Show that the simple harmonic motion exciting mode in merit feature measurement has electrodynamic type, electric-liquid type, mechanical cam/eccentric wheel type conventionally.Wherein mechanical cam/eccentric wheel exciting mode is than the above two, and simple in structure, easy installation, cost are lower.On October 26th, 2011, disclosed Chinese invention patent CN101738329B disclosed a kind of eccentric wheel exciting agency for MR damper performance test (that is traditional equal width cam mechanism), and the driving-chain that adopt frequency converter, motor and speed reduction unit, eccentric wheel, rectangular frame, forms with the sliding axle of rectangular frame one drives damper to do reciprocating linear motion.Eccentric wheel is driving link, and rectangular frame is driven member.Upper and lower two walls of inside casing of rectangular frame contact with eccentric wheel curved profile all the time, realize the linear reciprocating motion of upper and lower both direction, meet damper characteristics test request.But the rectangular frame in this traditional equal width cam mechanism is the polyhedron of the Integral box type structure of hollow, structure relative complex, processing and fabricating precision prescribed is higher and relatively inconvenient, needs further improvement.Meanwhile, this patent does not illustrate that the motor of employing is frequency control motor or common threephase asynchronous machine.Other prior art of MR damper performance test, often adopt frequency control motor to carry out driving cam, but the cost of frequency control motor is higher, and its price is generally 2～3 times of same power ordinary three-phase synchronous price.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of MR damper and shows merit characteristic test device, design the simpler and more direct merit characteristic test system that effectively shows of a set of whole electromechanical structure, employing is than the easier cam drive of traditional equal width cam mechanism and the lower ordinary three-phase synchronous of cost, what meet MR damper shows merit characteristic test demand, realizes not only simple and direct but also practical purpose.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
MR damper is shown a merit characteristic test device, comprises mechanical stand, cam exciting unit, MR damper electric power system and sensor testing system.
Described mechanical stand consists of base, framework and damper parts; Described framework comprises left back channel steel upright post, right back channel steel upright post, rear web joint, crossbeam, front web joint, right front channel steel upright post, left front channel column; Four channel steel upright post lower ends perpendicular to base are welded on respectively on a base plate, and base plate is bolted and is fixed on base; Rear web joint is bolted the upper part of being fixed on left back channel steel upright post, right back channel steel upright post, and front web joint is bolted the upper part of being fixed on right front channel steel upright post, left front channel column; Crossbeam is connected by screw and is fixed between rear web joint and front web joint; Damper parts comprise web member and stud bolt under MR damper, damper upper connector, damper, under damper upper connector, damper, web member is connected with MR damper by straight pin respectively, and stud bolt is connected between damper upper connector and pull pressure sensor.
Described cam exciting unit is comprised of frequency converter, ordinary three-phase synchronous, shaft coupling, camshaft, rolling bearing units, cam mechanism; Cam mechanism includes cam, cam upper plate, linear bearing, guiding polished rod, polished rod support member, coupling shaft, cam lower plate; Frequency converter is connected with ordinary three-phase synchronous by cable; Shaft coupling one end connects the output shaft of ordinary three-phase synchronous, and the other end connects camshaft; Camshaft is supported by rolling bearing units, passes through key connection for transmission between camshaft and cam; Cam upper end, lower end contact with cam upper plate, cam lower plate respectively, and cam upper plate, cam lower plate are connected to a flat gear train of combined integrate by coupling shaft, nut, spring washer; Linear bearing is screwed in cam upper plate; Polished rod support member is fixed in guiding polished rod one end, and the other end passes from linear bearing endoporus.Between cam upper plate and web member under damper, with bolt, be connected.
Described MR damper electric power system includes D.C. regulated power supply, constant current source and alternating current-direct current amp gauge; D.C. regulated power supply connects constant current source by cable, for it provides operating voltage; Constant current source connects MR damper by cable, is its power supply; Alternating current-direct current amp gauge is for detection of the electric current that is input to MR damper.
Described sensor testing system is comprised of pull pressure sensor, displacement transducer, data collecting card, computing machine; Pull pressure sensor is fixed by bolts to crossbeam lower surface centre position, and displacement transducer is arranged between crossbeam and cam upper plate; One end of data collecting card connects pull pressure sensor and displacement transducer, and the other end is connected with computing machine.
The present invention compares with background technology, and the beneficial effect having is: the MR damper of employing shows that merit characteristic test device has succinct whole electromechanical structure, simple installation, and cost is lower, stable and reliable for performance, not only simple and direct but also practical.Wherein, the flat gear train of combined integrate that cam mechanism adopts cam upper plate, cam lower plate, coupling shaft to form, the rectangular frame structure in more traditional equal width cam mechanism, processing and fabricating is simpler, and installing/dismounting is more convenient, and structure is simpler and more direct nimble; Adopt ordinary three-phase synchronous to do power source, lower than the frequency control motor cost of the common employing of prior art.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the rectangular frame structure figure in prior art equal width cam mechanism.
Fig. 2 is the vertical view that MR damper of the present invention is shown merit characteristic test device.
Fig. 3 is the cut-open view along A-A line in Fig. 2.
Fig. 4 is the cut-open view along B-B line in Fig. 2.
Fig. 5 is the Mechatronic Systems general illustration that MR damper of the present invention is shown merit characteristic test device.
In figure: base 1, frequency converter 2, threephase asynchronous machine 3, shaft coupling 4, camshaft 5, rolling bearing units 6, pull pressure sensor 7, stud bolt 8, damper upper connector 9, MR damper 10, under damper, web member 11, displacement transducer 12, cam 13, left back channel steel upright post 14, right back channel steel upright post 15, rear web joint 16, crossbeam 17, front web joint 18, right front channel steel upright post 19, left front channel column 20, cam upper plate 21, linear bearing 22, guiding polished rod 23, polished rod support member 24, coupling shaft 25, cam lower plate 26, eccentric wheel 27, sliding axle 28.
Embodiment
Figure 1 shows that the disclosed a kind of eccentric wheel exciting agency that can realize linear reciprocating motion of Chinese invention patent CN101738329B that background technology part is mentioned above, that is traditional equal width cam mechanism.In Fig. 1, eccentric wheel 27 rotations, drive driven member one sliding axle 28 to do reciprocating linear motion, and upper and lower two walls of rectangular frame inside casing on sliding axle 28 contact tangent with the curved profile of eccentric wheel 27 all the time.In this traditional equal width cam mechanism, rectangular frame is the polyhedron of the box structure of hollow, and structure relative complex is higher and relative inconvenient with the upper and lower two wall surface processing and fabricating precision prescribeies of inside casing of eccentric wheel profile contact.
MR damper of the present invention as shown in Fig. 2, Fig. 3, Fig. 4, Fig. 4 is shown merit characteristic test device, comprise mechanical stand, cam exciting unit, MR damper electric power system and sensor testing system, also for equal width cam mechanism, drive motor type selecting in prior art, make improvement simultaneously.Wherein, described mechanical stand consists of base 1, framework and damper parts.Described framework comprises left back channel steel upright post 14, right back channel steel upright post 15, rear web joint 16, crossbeam 17, front web joint 18, right front channel steel upright post 19, left front channel column 20.Four channel steel upright posts 14,15,19,20 are perpendicular to base 1 and be all welded on respectively on a base plate, and base plate is bolted and is fixed on base 1.Rear web joint 16 is bolted the upper part of being fixed on left back channel steel upright post 14, right back channel steel upright post 15, and front web joint 18 is bolted the upper part of being fixed on right front channel steel upright post 19, left front channel column 20.Crossbeam 17 is fixed between rear web joint 16 and front web joint 18 by screw.Damper parts are comprised of web member 11 and stud bolt 8 under MR damper 10, damper upper connector 9, damper, MR damper 10 is connected with web member 11 under damper upper connector 9, damper respectively by straight pin, and damper upper connector 9 connects pull pressure sensor 7 by stud bolt 8.Described cam exciting unit consists of frequency converter 2, ordinary three-phase synchronous 3, shaft coupling 4, camshaft 5, rolling bearing units 6 and cam mechanism, and cam mechanism includes cam 13, cam upper plate 21, linear bearing 22, guiding polished rod 23, polished rod support member 24, coupling shaft 25, cam lower plate 26.Frequency converter 2 is connected with ordinary three-phase synchronous 3 by cable.Shaft coupling 4 one end connect the output shaft of ordinary three-phase synchronous 3, and the other end connects camshaft 5.Camshaft 5 is supported by rolling bearing units 6, between camshaft 5 and cam 13, pass through key connection for transmission, cam 13 upper ends, lower end contact with cam upper plate 21, cam lower plate 26 respectively, cam upper plate 21, cam lower plate 26 are connected to a flat gear train of combined integrate by coupling shaft 25, nut, spring washer, linear bearing 22 is screwed on cam upper plate 21, cam upper plate 21 is connected with the 11 use bolts of web member under damper, polished rod support member 24 is fixed in guiding polished rod 23 one end, and the other end passes from linear bearing 22 endoporus.Described MR damper electric power system includes D.C. regulated power supply, constant current source and alternating current-direct current amp gauge, D.C. regulated power supply connects constant current source by cable, constant current source connects MR damper by cable, and alternating current-direct current amp gauge is for detection of the electric current that is input to MR damper.Described sensor testing system is comprised of pull pressure sensor, displacement transducer, data collecting card, computing machine, pull pressure sensor is fixed by bolts to crossbeam lower surface centre position, displacement transducer is arranged between crossbeam and cam upper plate, one end of data collecting card connects pull pressure sensor, displacement transducer, and the other end is connected with computing machine.
The course of work of the present invention is as follows:
Frequency converter 2 drives ordinary three-phase synchronous 3 to rotate, through shaft coupling 4, drive camshaft 5, camshaft 5 is by 13 rotations of key connection for transmission driving cam, cam 13 driving cam upper plates 21, the flat gear train of combined integrate that cam lower plate 26 forms does reciprocating linear motion, drive web member 11 under damper, the piston rod of MR damper 10 lower ends does reciprocating linear motion, the upper end of MR damper 10 is by damper upper connector 9, stud bolt 8, pull pressure sensor 7 is connected and fixed and is integrated with crossbeam 17, thereby realize the relative motion that MR damper is shown the desired damper of merit characteristic test two ends, and can obtain desired simple harmonic motion by the contour curve shape of design cam 13.Meanwhile, MR damper electric power system is started working: D.C. regulated power supply is connected to constant current source by cable, for constant current source provides operating voltage; Constant current source connects MR damper by cable, is MR damper power supply; Alternating current-direct current amp gauge is for detection of the electric current that is input to MR damper.When MR damper is during in normal test operation state, pull pressure sensor in sensor testing system, displacement transducer are measured respectively damping force and the relative displacement of damper two ends of MR damper, then through data collecting card, send into computing machine, in computing machine, carry out corresponding data processing and computing, what finally obtain MR damper shows merit family curve and corresponding data.
Above-mentioned embodiment is used for the present invention that explains; rather than limit the invention; under the premise without departing from the spirit and scope of the present invention, the present invention also can have various changes and modifications, within these changes and improvements all drop on protection scope of the present invention.
Claims (3)
1. a MR damper is shown merit characteristic test device, the sensor testing system that includes mechanical stand, cam exciting unit, MR damper electric power system and be comprised of pull pressure sensor (7), displacement transducer (12), data collecting card, computing machine, is characterized in that:
1) described mechanical stand consists of base (1), framework and damper parts; Described framework comprises left back channel steel upright post (14), right back channel steel upright post (15), rear web joint (16), crossbeam (17), front web joint (18), right front channel steel upright post (19), left front channel column (20); Four channel steel upright posts (14,15,19,20) lower end perpendicular to base (1) is welded on respectively on a base plate, and base plate is bolted and is fixed on base (1); Rear web joint (16) is bolted the upper part of being fixed on left back channel steel upright post (14), right back channel steel upright post (15), and front web joint (18) is bolted the upper part of being fixed on right front channel steel upright post (19), left front channel column (20); Crossbeam (17) is screwed between rear web joint (16) and front web joint (18); Damper parts comprise web member (11) and stud bolt (8) under MR damper (10), damper upper connector (9), damper, under damper upper connector (9), damper, web member (11) is connected with MR damper (10) by straight pin respectively, and stud bolt (8) is connected between damper upper connector (9) and pull pressure sensor (7);
2) described cam exciting unit is comprised of frequency converter (2), ordinary three-phase synchronous (3), shaft coupling (4), camshaft (5), rolling bearing units (6), cam mechanism; Cam mechanism includes cam (13), cam upper plate (21), linear bearing (22), guiding polished rod (23), polished rod support member (24), coupling shaft (25), cam lower plate (26); Frequency converter (2) is connected with ordinary three-phase synchronous (3) by cable; Shaft coupling (4) one end connects the output shaft of ordinary three-phase synchronous (3), and the other end connects camshaft (5); Camshaft (5), by rolling bearing units (6) supporting, passes through key connection for transmission between camshaft (5) and cam (13); Cam (13) upper end, lower end contact with cam upper plate (21), cam lower plate (26) respectively, and cam upper plate (21), cam lower plate (26) are connected to a flat gear train of combined integrate by coupling shaft (25), nut, spring washer; Linear bearing (22) is screwed on cam upper plate (21); Polished rod support member (24) is fixed in guiding polished rod (23) one end, and the other end passes from linear bearing (22) endoporus; Between cam upper plate (21) and web member under damper (11), with bolt, be connected.
2. MR damper according to claim 1 is shown merit characteristic test device, it is characterized in that, described MR damper electric power system includes D.C. regulated power supply, constant current source and alternating current-direct current amp gauge; D.C. regulated power supply connects constant current source by cable, for it provides control voltage; Constant current source connects MR damper (10) by cable, is its power supply; Alternating current-direct current amp gauge is for detection of the electric current that is input to MR damper (10).
3. MR damper according to claim 1 is shown merit characteristic test device, it is characterized in that, the concrete model of ordinary three-phase synchronous (3) in described cam exciting unit is the Y132M-8 in y series motor, also can adopt Y2 series three phase asynchronous machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210219045.9A CN102735486B (en) | 2012-06-29 | 2012-06-29 | Device for testing indicator characteristic of magnetorheological damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210219045.9A CN102735486B (en) | 2012-06-29 | 2012-06-29 | Device for testing indicator characteristic of magnetorheological damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102735486A CN102735486A (en) | 2012-10-17 |
| CN102735486B true CN102735486B (en) | 2014-10-29 |
Family
ID=46991383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210219045.9A Expired - Fee Related CN102735486B (en) | 2012-06-29 | 2012-06-29 | Device for testing indicator characteristic of magnetorheological damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102735486B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217244B (en) * | 2013-03-26 | 2015-11-18 | 山东科技大学 | Vibroshock pull or press force test instrument |
| CN103674530A (en) * | 2013-12-06 | 2014-03-26 | 上海应用技术学院 | Device for testing performance of magnetorheological fluid damper |
| CN103616176B (en) * | 2013-12-12 | 2016-03-09 | 上海瑞纽机械股份有限公司 | Damper valves closes performance test stand and test method thereof |
| CN107101797B (en) * | 2017-06-01 | 2023-08-04 | 南京理工大学 | Cylindrical experimental device for measuring shock resistance of buffer |
| CN107228760B (en) * | 2017-06-02 | 2018-11-09 | 西南交通大学 | A kind of vertical power performance test equipment of rail fastener resilient sleeper-bearing and control device |
| CN107024381A (en) * | 2017-06-02 | 2017-08-08 | 西南交通大学 | A kind of sinusoidal displacement excitation loading device and test equipment |
| CN110377008A (en) * | 2019-07-24 | 2019-10-25 | 芜湖双翼航空装备科技有限公司 | A kind of test fixture of rudder servo controller |
| CN114486569A (en) * | 2022-04-14 | 2022-05-13 | 安徽农业大学 | High-temperature impact tensile mechanical test platform and method based on cam crank-link mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3848456A (en) * | 1972-03-30 | 1974-11-19 | Itt | Testing apparatus for shock absorbers on vehicles |
| CN101738329A (en) * | 2009-11-06 | 2010-06-16 | 重庆仪表材料研究所 | Measurement and control system for magneto-rheological damper |
| CN201795928U (en) * | 2010-08-20 | 2011-04-13 | 重庆仪表材料研究所 | Magnetorheological damper test stand capable of testing in low and high temperature environments |
| CN102156013A (en) * | 2010-12-27 | 2011-08-17 | 北京华谷减振器设备有限公司 | Double-station and multispeed indicator of vehicle damper |
| CN202648979U (en) * | 2012-06-29 | 2013-01-02 | 湖南师范大学 | Test device for indicator characteristic of magnetorheological damper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100933052B1 (en) * | 2008-08-08 | 2009-12-21 | 세호엔지니어링 주식회사 | Magnetic force measuring device |
-
2012
- 2012-06-29 CN CN201210219045.9A patent/CN102735486B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3848456A (en) * | 1972-03-30 | 1974-11-19 | Itt | Testing apparatus for shock absorbers on vehicles |
| CN101738329A (en) * | 2009-11-06 | 2010-06-16 | 重庆仪表材料研究所 | Measurement and control system for magneto-rheological damper |
| CN201795928U (en) * | 2010-08-20 | 2011-04-13 | 重庆仪表材料研究所 | Magnetorheological damper test stand capable of testing in low and high temperature environments |
| CN102156013A (en) * | 2010-12-27 | 2011-08-17 | 北京华谷减振器设备有限公司 | Double-station and multispeed indicator of vehicle damper |
| CN202648979U (en) * | 2012-06-29 | 2013-01-02 | 湖南师范大学 | Test device for indicator characteristic of magnetorheological damper |
Non-Patent Citations (2)
| Title |
|---|
| "汽车主动悬架的单神经元自适应控制";金耀 等;《汽车工程》;20061031;第28卷(第10期);933-936 * |
| 金耀 等."汽车主动悬架的单神经元自适应控制".《汽车工程》.2006,第28卷(第10期),933-936. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102735486A (en) | 2012-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102735486B (en) | Device for testing indicator characteristic of magnetorheological damper | |
| CN102721550B (en) | Test device of automobile magnetorheological suspension system | |
| CN202994483U (en) | Test device of automobile magneto-rheological suspension system | |
| CN103091062B (en) | Motor-driven non-contact shock excitation device and shock excitation method thereof | |
| CN206248325U (en) | A kind of coaxial accurate transmission mechanism Special test platform | |
| CN102980704A (en) | Insertion and extraction force testing device | |
| CN102967453A (en) | Rotor test bed with online torque excitation and torque measurement function | |
| CN204882100U (en) | Car fourth simulation electromagnetism suspension and test bench thereof | |
| CN201535720U (en) | Reliability test platform for automobile hydraulic power-assisted steering gear | |
| CN103439117B (en) | Vehicle electrical driving wheel multi-function test stand | |
| CN202381045U (en) | Balance automatic regulating device of beam-pumping unit | |
| CN103500247B (en) | A kind of walking-beam pumping unit and motor Matching Method | |
| CN201307067Y (en) | Test platform for oil pressure vibration damper | |
| CN102519724A (en) | Wobble bearing type friction test device and method | |
| CN202648979U (en) | Test device for indicator characteristic of magnetorheological damper | |
| CN201656810U (en) | K-shaped linear ultrasonic motor clamping and positioning device based on continuous amplitude transformer principle | |
| CN108508361A (en) | A kind of linear piezoelectric motor electromechanical properties test system | |
| CN103278770A (en) | Ultrasonic motor performance comprehensive testing device and testing method thereof | |
| CN205613669U (en) | Small -size inertial -type vibration exciter | |
| CN103233721A (en) | Beam pumping machine ground mechanical system dynamic location method and device | |
| CN201138294Y (en) | Test platform for oil pressure vibration damper | |
| CN202267558U (en) | Permanent magnet transmission system torque testing machine | |
| CN207763773U (en) | A kind of ultrasonic liquid level sensor | |
| CN101728972B (en) | Clamping and positioning device of K-shaped linear ultrasonic motor based on continuous amplitude transformer principle | |
| CN204101301U (en) | A kind of mechanical vibration reducing device testing table |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20150629 |
|
| EXPY | Termination of patent right or utility model |