CN201340331Y - Magnetic current variation shock absorber impact test bench and impact tester - Google Patents
Magnetic current variation shock absorber impact test bench and impact tester Download PDFInfo
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- CN201340331Y CN201340331Y CNU200820157119XU CN200820157119U CN201340331Y CN 201340331 Y CN201340331 Y CN 201340331Y CN U200820157119X U CNU200820157119X U CN U200820157119XU CN 200820157119 U CN200820157119 U CN 200820157119U CN 201340331 Y CN201340331 Y CN 201340331Y
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- rheological vibration
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Abstract
The utility model relates to a magnetic current variation shock absorber impact test bench and an impact tester. The tester comprise a bench, a mass block, an impact generator, a buffer, a magnetic current variation shock absorber, a sensor, an impact signal processor and a current controller; the bench comprises two bases and a plurality of guide rails which are horizontally arranged on the two bases; the mass block is arranged on the guide rails in a sliding way; the impact generator is arranged on one end of the guide rails, and matched with the mass block; the buffer is arranged on the other end of the guide rails, and corresponds to the mass block; the magnetic current variation shock absorber is connected with the mass block; the sensor is arranged on the mass block, the magnetic current variation shock absorber or the bench; the impact signal processor is electrically connected with the sensor; the current control is respectively electrically connected with the sensor and the magnetic current variation shock absorber; the impact signal processor collects and processes the signal from the sensor, and then outputs the voltage signal to the current controller, and the current controller controls the damping force produced by the magnetic current variation shock absorber by regulating the output current according to the voltage signal. The utility model can be used to test the dynamic characteristics of the magnetic current variation shock absorber under the impact load, and verify the effectiveness of the control methods.
Description
Technical field
The utility model relates to a kind of magneto-rheological vibration damper characteristic test test unit, relates more specifically to a kind of magneto-rheological vibration damper impulse test stand and impact test apparatus.
Background technology
Magnetic flow liquid is a kind of controlled intellectual material of damping of exporting, and under the effect of outside magnetic field, but magnetic flow liquid can realize in the time of Millisecond from liquid state that to solid-state inverse conversion and transfer process can be controlled by changing magnetic field.Compared to electrorheological fluid, magnetic flow liquid has advantages such as shear yield strength height, operating voltage are low, temperature adaptation wide ranges.The magneto-rheological vibration damper that utilizes the good characteristic of magnetic flow liquid to make has that volume is little, light weight, energy consumption is little, the output damping force is big and controlled, response rapidly, characteristics such as adjustable extent is wide, be a kind of half intelligent apparatus initiatively.External R﹠D institution and researchist have been used for magneto-rheological vibration damper the damping technology of automotive suspension, Aero-Space, bridge, buildings etc., and have obtained good effect.In addition, US military has been tested the inverse recoil that magneto-rheological vibration damper is used for weaponry, at present this research well afoot.
Along with updating and the application of new and high technology of structural design thought and method, the intensity of the shock problem that is run in the engineering is increasing, in Aeronautics and Astronautics, military project, communications and transportation and engineering construction field all in various degree exist the shock problem that needs to be resolved hurrily, thereby the research of impact damper system causes people's attention and attention day by day.Characteristics such as magneto-rheological vibration damper has that damping is adjustable continuously, wide dynamic range, response speed are fast, low-power consumption become the intelligent device that application prospect is arranged in the vibration control very much.At present, in random load (as automotive suspension, building and Bridge Earthquake Resistance Design) environment, obtained excellent research and use for magneto-rheological vibration damper both at home and abroad, yet still there are blank in magneto-rheological vibration damper dynamics under the impact loading and half Study on Active Control Strategy.
Summary of the invention
The purpose of this utility model is to provide a kind of magneto-rheological vibration damper impulse test stand and impact test apparatus, can be used to test the magneto-rheological vibration damper dynamic perfromance under the impact loading, and the validity of authentication control method.
For achieving the above object, the technical solution of the utility model is,
A kind of magneto-rheological vibration damper impulse test stand, it comprises, two pedestals, some guide rails are horizontally placed on two pedestals; Mass, sliding is arranged on the guide rail; Impact generating means, guide rail one end is set, cooperate with described mass; Impact damper is provided with the guide rail other end, corresponding described mass; Magneto-rheological vibration damper links to each other with described mass.
Further, described impact generating means comprises electronic striking device, gunpowder chamber and close quick-fried generator, described electronic striking device links to each other with described gunpowder chamber, and described gunpowder chamber is connected with described close quick-fried generator, and described close quick-fried generator links to each other with described mass by a pipeline.
Again, described magneto-rheological vibration damper is a single-rod cylinder tubular magneto-rheological vibration damper, and described mass is fixedlyed connected with the cylinder barrel of described magneto-rheological vibration damper by an axle sleeve is set on it, and the piston rod of described magneto-rheological vibration damper is fixedlyed connected with described pedestal.
The utility model also provides a kind of magneto-rheological vibration damper impact test apparatus, and it comprises, stand, this stand comprise, two pedestals and be horizontally placed on some guide rails on two pedestals; Mass, sliding is arranged on the described guide rail; Impact generating means, described guide rail one end is set, cooperate with described mass; Impact damper is provided with the guide rail other end, corresponding described mass; Magneto-rheological vibration damper links to each other with described mass; Some sensors are arranged at described mass respectively, or on the described magneto-rheological vibration damper, or on the described stand; The impact signal processor electrically is connected with described sensor; Current controller electrically connects with described sensor and magneto-rheological vibration damper respectively; Described impact signal processor is gathered, is handled from output voltage signal after the described sensor signal and give described current controller, described current controller according to described voltage signal by regulating output current to control the damping force size that described magneto-rheological vibration damper produces.
Further, described impact generating means comprises electronic striking device, gunpowder chamber and close quick-fried generator, described electronic striking device links to each other with described gunpowder chamber, and described gunpowder chamber is connected with described close quick-fried generator, and described close quick-fried generator links to each other with described mass by a pipeline.
Again, magneto-rheological vibration damper described in the utility model is a single-rod cylinder tubular magneto-rheological vibration damper, described mass is fixedlyed connected with the cylinder barrel of described magneto-rheological vibration damper by an axle sleeve is set on it, and the piston rod of described magneto-rheological vibration damper is fixedlyed connected with described pedestal.
Have, described sensor comprises acceleration transducer again, and described acceleration transducer is installed on the described mass.
Described sensor also comprises shock sensors and pressure transducer, and described shock sensors is installed on the piston rod of described magneto-rheological vibration damper, and described pressure transducer is installed on the cylinder barrel of described magneto-rheological vibration damper.
Described sensor also comprises speed and displacement transducer, and described speed and displacement transducer are installed on the support.
The beneficial effects of the utility model:
The utility model designs a kind of magneto-rheological vibration damper impulse test stand, and general test platform can be provided for the research of the problems referred to above.But the dynamics of analytical calculation magneto-rheological vibration damper under test platform, carry out control strategy emulation and corresponding testing and verification, multiple functional, can disclose the performance of vibration control preferably, for the half ACTIVE CONTROL system design of the magneto-rheological vibration damper under the shock environment and verification experimental verification and other armament systems vibration control research and development provide effective technical Analysis means and test to ensure.
The utility model designs a close quick-fried generator, utilize close quick-fried generator by impulsive force that gunpowder explosion produced as impulse source, how many big I of impact loading power is controlled with quality by the gunpowder size of inserting the gunpowder chamber, impulsive force is in the certain limit continuous controllable, and attainable impulsive force amplitude range reaches maximum 10000N.
The magneto-rheological vibration damper impulse test stand guide rail of design has the very high depth of parallelism, and the mass that slides on guide rail can be according to the operating condition of test difference, on demand quality of regulation size voluntarily.
The complicated dynamoelectric equipment vibration shock isolation that magneto-rheological vibration damper is used under the shock environment designs, and has not yet to see the report of concrete technical scheme.Control Method for MR Damper under the shock load excitation is the complicacy problem of a multidisciplinary intersection, and still there are many problems of continuing to study of remaining in special topics such as the dynamics of theoretical model, impact damper system system and the design of half active control strategies and realization.
The controllability of the magnetorheological impact damper system device of the long stroke damping force of the utility model utilization design, realized reducing of artillery recoil power or recoil stroke, improved control, improved cannon slap shot precision and injure rate the cannon stationarity, alleviate cannon weight, raising fast reserve performance.
Magneto-rheological vibration damper adopts long stroke single pole magneto-rheological vibration damper, adopts multistage coil to produce magnetic field, and effectively MRF is 600ml, and power consumption is 18w, and exportable maximum damping force is 6000N.Magneto-rheological vibration damper impact test apparatus of the present utility model has been arranged impulsive force signal transducer, vibration damper acceleration signal, displacement signal and rate signal sensor, vibration damper cavity pressure signal transducer, based on each physical quantity signal that detects, can study the magneto-rheological vibration damper dynamic perfromance under impact loading, and the validity of authentication control method.
In addition, include snubber assembly in the impulse test stand, can effectively protect the overload problem of MR damper under bad working environments.Bifurcation control strategy, proportional control strategy, PID control strategy and fuzzy control strategy verification experimental verification the utility model have excellent controllability under impact loading, the magneto-rheological vibration damper stroke can shorten 50%, about 60ms of the response time of experimental system;
The utility model is set up a kind of magneto-rheological vibration damper impact test apparatus based on the unique perspective of Structural Dynamics and control theory intersection, and general test platform can be provided for the research of the problems referred to above.But the dynamics of analytical calculation magneto-rheological vibration damper under test platform, carry out control strategy emulation and corresponding testing and verification, multiple functional, can disclose the performance of vibration control preferably, for the half ACTIVE CONTROL system design of the magneto-rheological vibration damper under the shock environment and verification experimental verification and other armament systems vibration control research and development provide effective technical Analysis means and test to ensure.
Description of drawings
Fig. 1 is the structural representation of the utility model magneto-rheological vibration damper impulse test stand;
Fig. 2 is the structured flowchart of the utility model magneto-rheological vibration damper impact test apparatus.
Embodiment
Referring to Fig. 1, Fig. 2, magneto-rheological vibration damper impact test apparatus of the present utility model, it comprises, stand 1, mass 2, impact generating means 3, impact damper 4, magneto-rheological vibration damper 5, acceleration transducer 6, shock sensors 7, pressure transducer 8, speed and displacement transducer 9; Impact signal processor 10,
Impact generating means 3, described guide rail one end is set, comprises electronic striking device 31, gunpowder chamber and close quick-fried generator, described electronic striking device links to each other with described gunpowder chamber, described gunpowder chamber is connected with described close quick-fried generator, and described close quick-fried generator links to each other with described mass by a pipeline;
Magneto-rheological vibration damper 5, it is a single-rod cylinder tubular magneto-rheological vibration damper, adopts multistage coil to produce magnetic field, can change the size of the damping force that magneto-rheological vibration damper 5 produced by the size that changes the coil input current; Mass 3 is fixedlyed connected with the cylinder barrel of magneto-rheological vibration damper 5 by the axle sleeve 12 that is provided with on it, and the piston rod of magneto-rheological vibration damper 5 is fixedlyed connected with stand 1 pedestal 101;
Sensor comprises acceleration transducer 6, shock sensors 7, pressure transducer 8, speed and displacement transducer 9; Acceleration transducer 6 is installed on the mass 2, is used to measure the acceleration of magneto-rheological vibration damper 5 motion parts; Shock sensors 7 is installed on the piston rod of magneto-rheological vibration damper 5, is used to monitor magneto-rheological vibration damper 5 and is delivered to power on stand 1 pedestal 101; Pressure transducer 8 is installed on the cylinder barrel of magneto-rheological vibration damper 5, is used to measure the variation of magneto-rheological vibration damper 5 working chamber pressure; Speed and displacement transducer 9 are installed on the pedestal 101, are used to measure the speed and the displacement of magneto-rheological vibration damper 5 motion parts;
Process of the test is as follows:
With the gunpowder gunpowder chamber of packing into, utilize the gunpowder in the electronic striking device ignition gunpowder chamber of impacting generating means 3, the energy of gunpowder explosion can produce shock load, because the cavity of close quick-fried generator links to each other with mass 2 by a pipeline, the impact air-flow that gunpowder explosion produces promotes mass 2 by this pipeline and moves backward along guide rail 102, simultaneously, mass 2 will drive by the fixing magneto-rheological vibration damper 5 of two axle sleeves 12 together along guide rail movement.
During this time, by changing the powder grain size and inserting quality, can realize the control of impact load forces.When mass 2 moves to guide rail 102 ends, also do not finish if impact the motion that produces, impact damper 4 will stop mass 2 and magneto-rheological vibration damper 5 to move backward, until stopping.
Impulsive force signal in the impact process, acceleration signal, magneto-rheological vibration damper cavity pressure signal, displacement signal and rate signal can obtain by sensor.Displacement, the rack-mount maintenance of speed pickup are motionless, acceleration transducer is installed on and realizes servo-actuated on the mass, pressure transducer in the magneto-rheological vibration damper chamber is installed on the vibration damper cylinder barrel and realizes servo-actuated, and shock sensors is installed on the stiff end of piston rod.In the process of the test, the continuous pick-up transducers signal of impact signal processor, by various computings to analyze the vibration damper dynamic perfromance under the impact loading, and the certain control algolithm of process draws the voltage signal of output, export to current controller, the damping force size that current controller produces with the control magneto-rheological vibration damper by the adjusting output current according to described voltage signal.
In sum, the utility model utilizes close quick-fried generator as impulse source, studied the dynamic perfromance of magneto-rheological vibration damper under impact loading, the cavity pressure of magneto-rheological vibration damper and displacement are performed an analysis and study in the characteristic under the shock load, and verified the validity of shock load control method.
Claims (9)
1. a magneto-rheological vibration damper impulse test stand is characterized in that, comprise,
Two pedestals,
Some guide rails are horizontally placed on two pedestals;
Mass, sliding is arranged on the guide rail;
Impact generating means, guide rail one end is set, cooperate with described mass;
Impact damper is provided with the guide rail other end, corresponding described mass;
Magneto-rheological vibration damper links to each other with described mass.
2. magneto-rheological vibration damper impulse test stand as claimed in claim 1, it is characterized in that, described impact generating means comprises electronic striking device, gunpowder chamber and close quick-fried generator, described electronic striking device links to each other with described gunpowder chamber, described gunpowder chamber is connected with described close quick-fried generator, and described close quick-fried generator links to each other with described mass by a pipeline.
3. magneto-rheological vibration damper impulse test stand as claimed in claim 1 or 2, it is characterized in that, described magneto-rheological vibration damper is a single-rod cylinder tubular magneto-rheological vibration damper, described mass is fixedlyed connected with the cylinder barrel of described magneto-rheological vibration damper by an axle sleeve is set on it, and the piston rod of described magneto-rheological vibration damper is fixedlyed connected with described pedestal.
4. a magneto-rheological vibration damper impact test apparatus is characterized in that,
Stand, it comprises, two pedestals and be horizontally placed on some guide rails on two pedestals;
Mass, sliding is arranged on the described guide rail;
Impact generating means, described guide rail one end is set, cooperate with described mass;
Impact damper is provided with the guide rail other end, corresponding described mass;
Magneto-rheological vibration damper links to each other with described mass;
Some sensors are arranged at described mass respectively, or on the described magneto-rheological vibration damper, or on the described stand;
The impact signal processor electrically is connected with described sensor;
Current controller electrically connects with described sensor and magneto-rheological vibration damper respectively; Described impact signal processor is gathered, is handled from output voltage signal after the described sensor signal and give described current controller, described current controller according to described voltage signal by regulating output current to control the damping force size that described magneto-rheological vibration damper produces.
5. magneto-rheological vibration damper impact test apparatus as claimed in claim 4, it is characterized in that, described impact generating means comprises electronic striking device, gunpowder chamber and close quick-fried generator, described electronic striking device links to each other with described gunpowder chamber, described gunpowder chamber is connected with described close quick-fried generator, and described close quick-fried generator links to each other with described mass by a pipeline.
6. magneto-rheological vibration damper impact test apparatus as claimed in claim 4, it is characterized in that, described magneto-rheological vibration damper is a single-rod cylinder tubular magneto-rheological vibration damper, described mass is fixedlyed connected with the cylinder barrel of described magneto-rheological vibration damper by an axle sleeve is set on it, and the piston rod of described magneto-rheological vibration damper is fixedlyed connected with described pedestal.
7. magneto-rheological vibration damper impact test apparatus as claimed in claim 4 is characterized in that described sensor comprises acceleration transducer, and described acceleration transducer is installed on the described mass.
8. magneto-rheological vibration damper impact test apparatus as claimed in claim 4, it is characterized in that, described sensor also comprises shock sensors and pressure transducer, described shock sensors is installed on the piston rod of described magneto-rheological vibration damper, and described pressure transducer is installed on the cylinder barrel of described magneto-rheological vibration damper.
9. magneto-rheological vibration damper impact test apparatus as claimed in claim 4 is characterized in that described sensor also comprises speed and displacement transducer, and described speed and displacement transducer are installed on the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNU200820157119XU CN201340331Y (en) | 2008-12-15 | 2008-12-15 | Magnetic current variation shock absorber impact test bench and impact tester |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU200820157119XU CN201340331Y (en) | 2008-12-15 | 2008-12-15 | Magnetic current variation shock absorber impact test bench and impact tester |
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| CN201340331Y true CN201340331Y (en) | 2009-11-04 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769818B (en) * | 2010-02-08 | 2011-06-08 | 中华人民共和国无锡出入境检验检疫局 | Pneumatic hydraulic servo horizontal impact tester |
| CN102519698A (en) * | 2011-11-21 | 2012-06-27 | 中北大学 | Big impact load loading device |
| ES2384804A1 (en) * | 2010-07-12 | 2012-07-12 | Consejo Superior De Investigaciones Científicas (Csic) | Bank of tests for the characterization of actuators based on ferromagnetic materials with memory of form. (Machine-translation by Google Translate, not legally binding) |
| CN101737450B (en) * | 2010-01-06 | 2012-11-21 | 嘉兴学院 | Intelligent magneto-rheological vibration damping system |
| CN103149048A (en) * | 2013-04-02 | 2013-06-12 | 重庆邮电大学 | Track vibration isolation multifunctional test platform based on magnetorheology technology |
| CN104237032A (en) * | 2014-10-10 | 2014-12-24 | 绍兴明透装甲材料有限责任公司 | Bullet impulse online detector |
| CN106870622A (en) * | 2017-03-15 | 2017-06-20 | 上海工程技术大学 | A kind of magnetic rheology elastic body torsional vibration damper |
| CN107941443A (en) * | 2017-12-25 | 2018-04-20 | 上海大学 | A kind of single-degree-of-freedom is vortexed magnetic damping Proof-Of Principle experimental provision |
| CN112539903A (en) * | 2019-09-20 | 2021-03-23 | 南京理工大学 | Multifunctional impact loading platform and experimental method thereof |
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2008
- 2008-12-15 CN CNU200820157119XU patent/CN201340331Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737450B (en) * | 2010-01-06 | 2012-11-21 | 嘉兴学院 | Intelligent magneto-rheological vibration damping system |
| CN101769818B (en) * | 2010-02-08 | 2011-06-08 | 中华人民共和国无锡出入境检验检疫局 | Pneumatic hydraulic servo horizontal impact tester |
| ES2384804A1 (en) * | 2010-07-12 | 2012-07-12 | Consejo Superior De Investigaciones Científicas (Csic) | Bank of tests for the characterization of actuators based on ferromagnetic materials with memory of form. (Machine-translation by Google Translate, not legally binding) |
| CN102519698A (en) * | 2011-11-21 | 2012-06-27 | 中北大学 | Big impact load loading device |
| CN103149048A (en) * | 2013-04-02 | 2013-06-12 | 重庆邮电大学 | Track vibration isolation multifunctional test platform based on magnetorheology technology |
| CN104237032A (en) * | 2014-10-10 | 2014-12-24 | 绍兴明透装甲材料有限责任公司 | Bullet impulse online detector |
| CN106870622A (en) * | 2017-03-15 | 2017-06-20 | 上海工程技术大学 | A kind of magnetic rheology elastic body torsional vibration damper |
| CN106870622B (en) * | 2017-03-15 | 2019-09-06 | 上海工程技术大学 | A kind of magnetic rheology elastic body torsional vibration damper |
| CN107941443A (en) * | 2017-12-25 | 2018-04-20 | 上海大学 | A kind of single-degree-of-freedom is vortexed magnetic damping Proof-Of Principle experimental provision |
| CN107941443B (en) * | 2017-12-25 | 2019-06-07 | 上海大学 | A kind of single-degree-of-freedom vortex magnetic damping Proof-Of Principle experimental provision |
| CN112539903A (en) * | 2019-09-20 | 2021-03-23 | 南京理工大学 | Multifunctional impact loading platform and experimental method thereof |
| CN112539903B (en) * | 2019-09-20 | 2023-08-08 | 南京理工大学 | Multifunctional impact loading table and experimental method thereof |
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Granted publication date: 20091104 Termination date: 20101215 |