CN102606664A - Self-adaptive air spring based on magnetorheological technology - Google Patents
Self-adaptive air spring based on magnetorheological technology Download PDFInfo
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- CN102606664A CN102606664A CN2011104418253A CN201110441825A CN102606664A CN 102606664 A CN102606664 A CN 102606664A CN 2011104418253 A CN2011104418253 A CN 2011104418253A CN 201110441825 A CN201110441825 A CN 201110441825A CN 102606664 A CN102606664 A CN 102606664A
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Abstract
The invention discloses a self-adaptive air spring based on the magnetorheological technology, which comprises a magnetorheological elastomer rubber pneumatic bag, an upper cover plate, a lower cover plate, a piston rod, a piston, a working cylinder, a coil, acceleration transducers and a controller module; the upper end and the lower end of the magnetorheological elastomer rubber pneumatic bag are connected with the upper cover plate and the lower cover plate, respectively, compressible gas is filled in the inner cavity of the magnetorheological elastomer rubber pneumatic bag; the piston rod, the piston and the working cylinder are located in the inner part of the magnetorheological elastomer rubber pneumatic bag; the upper end of the piston rod is connected with the upper cover plate, the lower end of the piston rod and the piston are connected into one body to vertically slide in the working cylinder; the coil is rolled inside the piston; the lower end of the working cylinder is connected with the lower cover plate, the inner cavity of the working cylinder is filled with magnetorheological elastomer fluid, the fluid flows back and forth in a gap between the piston and the working cylinder; two acceleration transducers are connected with the controller module through signal lines, respectively; the controller module is connected with the coil through a control wire. The self-adaptive air spring is compact in structure and short in responding time; furthermore, the self-adaptive air spring has the characteristics of automatically adjusting the rigidity and the damping value, improving the riding comfort and the operation stability of carrying tools.
Description
(1) technical field
The present invention relates to a kind of pneumatic spring, relate in particular to a kind of adaptive space air spring based on magnetic converting technique; This pneumatic spring can be regulated its rigidity and damping value automatically real-time according to vehicle body load and real work road excitation situation, improves the vibration and noise reducing performance of vehicle, improves riding comfort and operational stability.This system also can be applicable on the heavy machinery, reduces the shock and vibration of extraneous load to mechanical structure.Belong to apparatus of transport and technical field of engineering machinery.
(2) background technique
In the process of automobile normal running, the active force that vehicle receives is impact often, and pavement behavior is complicated and changeable in addition, and the excitation amplitude of extraneous load and frequency be different.The heavy machinery structure also can receive the various extraneous load impacting of variation in practical application.For improving the shock resistance and the damping property of apparatus of transport and heavy machinery, need a kind of Adaptable System to regulate its rigidity and damping value in real time according to the difference of dynamic excitation.
Present existing pneumatic spring can be realized through the compressibility of gas highly and the controllability of rigidity, plays the effect of buffering.But the adjustment response time of height and rigidity is a mechanical response time, non-intelligent suspension system.In addition, pneumatic spring will produce vibration, and himself not possess damping characteristic in the process that absorbs foreign impacts load, can not attenuation vibration.In actual use, pneumatic spring needs usually and vibration damper is used, and makes them play spring and damping function respectively, just can reach the purpose of shock resistance and vibration damping.
Magnetic rheology elastic body and magnetorheological elastic liquid are the novel intelligent materials that occurs in recent years, and they can change mechanical characteristic automatically real-time under the effect of externally-applied magnetic field.The present invention is based on this two kinds of materials, designed a kind of can real-time regulated and the adaptive space air spring of control rigidity and damping.This pneumatic spring, simultaneously integrated spring and two elements of vibration damper can effectively relax impact, and attenuation vibration has the important engineering application value.
(3) summary of the invention
1, purpose:
The purpose of this invention is to provide a kind of adaptive space air spring based on magnetic converting technique.Based on magnetic converting technique; This device has the advantage of response time weak point, compact structure; Can be according to the continuous variation of extraneous load; Regulate its rigidity and damping value automatically real-time, improve the riding comfort and the operational stability of apparatus of transport, also can be used in the shock resistance and the damping property that improve the heavy machinery structure.
2, technological scheme:
See Fig. 1, a kind of adaptive space air spring of the present invention based on magnetic converting technique, it comprises: magnetic rheology elastic body rubber pneumatic bag, upper cover plate, lower cover plate, piston rod, piston, clutch release slave cylinder, coil, acceleration transducer and controller module.Position annexation between them is: magnetic rheology elastic body rubber pneumatic bag upper end is connected with upper cover plate, and its lower end is connected with lower cover plate, and its inner chamber is filled with compressible gas; It is inner that piston rod, piston and clutch release slave cylinder are positioned at the magnetic rheology elastic body rubber pneumatic bag; Piston rod upper end is connected with upper cover plate, and its lower end and piston link into an integrated entity, and this integral body can upper and lower slip in clutch release slave cylinder; Coiling has been installed in the inside of piston coil; The clutch release slave cylinder lower end is connected with lower cover plate, and its inner chamber is filled with magnetorheological elastic liquid, and this liquid can flow through the gap between piston and the clutch release slave cylinder back and forth; Two acceleration transducers are fixed on respectively on upper cover plate and the lower cover plate, and they connect controller module through signaling line respectively; Controller module links to each other with coil through guide line.
Said magnetic rheology elastic body rubber pneumatic bag is made up of the magneto-rheological elastomer intelligent material, and its shape is similar to normal air spring air bag.Through changing the size of current of coil in this kind of adaptive space air spring, can change to continuous real-time the rigidity value of magnetic rheology elastic body rubber pneumatic bag, cushion the dynamic excitation of different amplitudes and frequency.
Said upper cover plate is the cover plate of cylindrical structure, is used for airtight magnetic rheology elastic body rubber pneumatic bag, and it selects the material of alloyed steel or other high tenacity and high permeability for use.
Said lower cover plate is the cover plate of cylindrical structure, is used for airtight magnetic rheology elastic body rubber pneumatic bag, and it selects the material of alloyed steel or other high tenacity and high permeability for use.
Said piston rod is the solid rod member of cylindrical structure, can be reciprocating along its axial direction, and it is a connection and moving element, it selects the material of alloyed steel or other high tenacity and high permeability for use.
Said piston is the cylindrical structure parts, can do linear reciprocating motion along its axial direction, and it selects the material of alloyed steel or other high tenacity and high permeability for use.
Said coil is spiral helicine ringwise lead winding, for the enamel-cover copper conductor is made.After the energising, under the effect of electric current, will around it, form magnetic field.Can regulate and control the power that it produces magnetic field through the size that changes electric current in the coil.
Said clutch release slave cylinder is a cylindrical container, and it selects the material of alloyed steel or other high tenacity and high permeability for use.
Said acceleration transducer can be experienced acceleration and convert usable output signal to, reaches controller module.It is commercial that chooses on demand.
Said controller module can be realized signal processing and control through programming.It is commercial that chooses on demand.
Said compressible gas is an inert gas, utilizes the compressibility of gas, realizes spring action.
Wherein, the magnetic rheology elastic body rubber pneumatic bag is made up of magnetic rheology elastic body.This material is by after rubber matrix and magnetic micrometer or the nano-scale particle mixing; Under the action of a magnetic field, solidify the polymer composites that forms; Its mechanical characteristic (like Young's modulus, shear modulus and modulus of compression etc.) can be regulated by external magnetic field, is a kind of novel intellectual material.
Wherein, the magnetorheological elastic liquid that is full of of clutch release slave cylinder inner chamber is a kind of magnetic-particle suspension.Its rheological properties will receive the strong and weak influence in magnetic field and take place to change in real time, produce controlled damping force, belong to the novel intelligent material.
Workflow of the present invention is following:
Signal difference according to the acceleration transducer perception that lays respectively at upper and lower cover plate; Size by controller module self adaption regulating winding output current signal; And then the power in magnetic field in the change pneumatic spring; Continuous real-time ground changes the rigidity of magnetic rheology elastic body and the damping value of magnetorheological elastic liquid, improves its shock resistance and damping behavior.In addition, the magnetic rheology elastic body rubber pneumatic bag also will raise or reduction through making the air pressure that compressible gas receives in its chamber according to this signal difference, regulates the height value of pneumatic spring.
3, the advantage of a kind of adaptive space air spring based on magnetic converting technique of the present invention:
1. this pneumatic spring can be regulated its rigidity and damping value automatically real-time according to the variation of extraneous load, has realized the design of intelligent air spring.
2. simultaneously integrated spring and two elements of vibration damper, compact structure, economical and practical, volume is little.
3. improved apparatus of transport, especially the damping property of motor vehicle and special vehicle has improved occupant's riding comfort and operational stability.
4. make the Security and the reliability of total system obtain promoting effectively.
(4) description of drawings
The three-dimensional isometric view of Fig. 1 adaptive space air spring of the present invention
Fig. 2 adaptive space air spring of the present invention sectional drawing
Symbol description is following among the figure:
1 magnetic rheology elastic body rubber pneumatic bag; 2 upper cover plates; 3 lower cover plates; 4 piston rods; 5 pistons; 6 clutch release slave cylinders; 7 coils; 8 acceleration transducers; 9 controller modules.
(5) embodiment
Below in conjunction with accompanying drawing the present invention is explained in further detail:
See Fig. 1 and Fig. 2, a kind of adaptive space air spring of the present invention based on magnetic converting technique, it comprises: magnetic rheology elastic body rubber pneumatic bag 1; Upper cover plate 2; Lower cover plate 3; Piston rod 4; Piston 5; Clutch release slave cylinder 6; Coil 7; Acceleration transducer 8; With controller module 9.Position annexation between them is:
Magnetic rheology elastic body rubber pneumatic bag 1 upper end is connected with upper cover plate 2, and the lower end is connected with lower cover plate 3, and its inner chamber is filled with compressible gas; Piston rod 4, piston 5 and clutch release slave cylinder 6 are positioned at magnetic rheology elastic body rubber pneumatic bag 1 inside; Piston rod 4 upper ends are connected with upper cover plate 2, and its lower end and piston 5 link into an integrated entity, and this integral body can upper and lower slip in clutch release slave cylinder 6; Coiling has been installed in the inside of piston 5 coil 7; Clutch release slave cylinder 6 lower ends are connected with lower cover plate 3, and its inner chamber is filled with magnetorheological elastic liquid, and this liquid can flow through the gap between piston 5 and the clutch release slave cylinder 6 back and forth; Two acceleration transducers 8 are fixed on respectively on upper cover plate 2 and the lower cover plate 3, and they link to each other with controller module 9 through signaling line respectively; Controller module 9 links to each other with coil 7 on the piston rod 4 through guide line.
Said magnetic rheology elastic body rubber pneumatic bag 1 is made up of the magneto-rheological elastomer intelligent material, and its shape is similar to normal air spring air bag.Magnetic rheology elastic body is by after rubber matrix and magnetic micrometer or the nano-scale particle mixing; Under the action of a magnetic field, solidify the polymer composites that forms; Its mechanical characteristic (like Young's modulus, shear modulus and modulus of compression etc.) can be regulated by external magnetic field, is a kind of novel intellectual material.
Said upper cover plate 2 is cover plates of cylindrical structure, is used for airtight magnetic rheology elastic body rubber pneumatic bag, and it selects the material of alloyed steel or other high tenacity and high permeability for use.
Said lower cover plate 3 is cover plates of cylindrical structure, is used for airtight magnetic rheology elastic body rubber pneumatic bag, and it selects the material of alloyed steel or other high tenacity and high permeability for use.
Said piston rod 4 is solid rod members of cylindrical structure, can be reciprocating along its axial direction, be one and connect and moving element that it selects the material of alloyed steel or other high tenacity and high permeability for use.
Said piston 5 is cylindrical structure parts, can do linear reciprocating motion along its axial direction, and it selects the material of alloyed steel or other high tenacity and high permeability for use.
Said coil 7 is spiral helicine ringwise lead windings, for the enamel-cover copper conductor is made.After the energising, under the effect of electric current, will around it, form magnetic field.Can regulate and control the power that it produces magnetic field through the size that changes electric current in the coil.
Said clutch release slave cylinder 6 is cylindrical containers, and it selects the material of alloyed steel or other high tenacity and high permeability for use.
Said acceleration transducer 8 can be experienced acceleration and convert usable output signal to, reaches controller module 9.It is commercial that chooses on demand.
Said controller module 9 is realized signal processing and control through programming.It is commercial that chooses on demand.
Said compressible gas is an inert gas, utilizes the compressibility of gas, realizes spring action.
Wherein, the magnetorheological elastic liquid that is full of of clutch release slave cylinder 6 inner chambers is a kind of magnetic-particle suspension.Its rheological properties will receive the strong and weak influence in magnetic field and take place to change in real time, produce controlled damping force, and the response time is the electronic response time, belongs to the novel intelligent material.
The present invention is according to the load signal difference of the acceleration transducer that lays respectively at upper and lower cover plate 8 perception; Size by controller module 9 self adaption regulating windings 7 output current signals; And then the power in magnetic field in the change pneumatic spring; Continuous real-time ground changes the rigidity of magnetic rheology elastic body and the damping value of magnetorheological elastic liquid, improves its shock resistance and damping behavior.In addition, the magnetic rheology elastic body rubber pneumatic bag also will raise or reduction through making the air pressure that compressible gas receives in its chamber according to this signal difference, regulates the height value of control air spring.
Claims (2)
1. adaptive space air spring based on magnetic converting technique, it is characterized in that: it comprises: magnetic rheology elastic body rubber pneumatic bag, upper cover plate, lower cover plate, piston rod, piston, clutch release slave cylinder, coil, acceleration transducer and controller module; Magnetic rheology elastic body rubber pneumatic bag upper end is connected with upper cover plate, and its lower end is connected with lower cover plate, and its inner chamber is filled with compressible gas; It is inner that piston rod, piston and clutch release slave cylinder are positioned at the magnetic rheology elastic body rubber pneumatic bag; Piston rod upper end is connected with upper cover plate, and its lower end and piston link into an integrated entity, and this integral body can upper and lower slip in clutch release slave cylinder; Coiling has been installed in the inside of piston coil; The clutch release slave cylinder lower end is connected with lower cover plate, and its inner chamber is filled with magnetorheological elastic liquid, and this liquid can flow through the gap between piston and the clutch release slave cylinder back and forth; Two acceleration transducers are fixed on respectively on upper cover plate and the lower cover plate, and they connect controller module through signaling line respectively; Controller module links to each other with coil through guide line;
Said magnetic rheology elastic body rubber pneumatic bag is made up of the magneto-rheological elastomer intelligent material; This material is by after rubber matrix and magnetic micrometer or the nano-scale particle mixing; Under the action of a magnetic field, solidify the polymer composites that forms; Its mechanical characteristic is regulated by external magnetic field, and its shape is similar to normal air spring air bag, through changing the size of current of coil in this kind of adaptive space air spring; Continuous real-time ground changes the rigidity value of magnetic rheology elastic body rubber pneumatic bag, cushions the dynamic excitation of different amplitudes and frequency;
Said upper cover plate is the cover plate of cylindrical structure, is used for airtight magnetic rheology elastic body rubber pneumatic bag, and it selects the material of alloyed steel or other high tenacity and high permeability for use;
Said lower cover plate is the cover plate of cylindrical structure, is used for airtight magnetic rheology elastic body rubber pneumatic bag, and it selects the material of alloyed steel or other high tenacity and high permeability for use;
Said piston rod is the solid rod member of cylindrical structure, and is reciprocating along its axial direction, and it is a connection and moving element, and it selects the material of alloyed steel or other high tenacity and high permeability for use;
Said piston is a cylindrical structure spare, does linear reciprocating motion along its axial direction, and it selects the material of alloyed steel or other high tenacity and high permeability for use;
Said coil is spiral helicine ringwise lead winding, is the making of enamel-cover copper conductor, after the energising, under the effect of electric current, will around it, form magnetic field, through size adjustment that changes electric current in the coil and the power of controlling its generation magnetic field;
Said clutch release slave cylinder is a cylindrical container, and it selects the material of alloyed steel or other high tenacity and high permeability for use; The magnetorheological elastic liquid that the clutch release slave cylinder inner chamber is full of is a kind of magnetic-particle suspension, and its rheological properties will receive the strong and weak influence in magnetic field and take place to change in real time, produce controlled damping force;
Said acceleration transducer can be experienced acceleration and convert usable output signal to, reaches controller module, and it is the part of choosing as required;
Said controller module is realized signal processing and control through programming, and it is the part of choosing as required.
2. a kind of adaptive space air spring based on magnetic converting technique according to claim 1 is characterized in that: the compressible gas that this magnetic rheology elastic body rubber pneumatic bag inner chamber is filled with is an inert gas, utilizes the compressibility of inert gas, realizes spring action.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103615492A (en) * | 2013-11-29 | 2014-03-05 | 重庆材料研究院有限公司 | Suspension type magneto-rheological damper and system |
| CN103883658A (en) * | 2014-04-08 | 2014-06-25 | 陈曦 | Nano-porous material energy absorption structure packaged by high polymer materials |
| CN103883668A (en) * | 2014-04-08 | 2014-06-25 | 陈曦 | Nano-porous material energy absorption structure based on nested encapsulation of metal and high-polymer materials |
| CN103899702A (en) * | 2014-04-08 | 2014-07-02 | 陈曦 | Nano porous energy absorbing structure based on metal package |
| CN106321716A (en) * | 2016-10-27 | 2017-01-11 | 中国海洋大学 | Magnetorheological elastomer vibration isolator |
| CN108105313A (en) * | 2017-11-29 | 2018-06-01 | 重庆理工大学 | Air cushion shock absorber based on magnet controlled damping |
| CN110730712A (en) * | 2017-08-22 | 2020-01-24 | 宝马股份公司 | Pressure plug for a press and press having a pressure plug |
| CN113483049A (en) * | 2021-07-13 | 2021-10-08 | 上海工程技术大学 | Rigidity-adjustable intelligent hydraulic damper and adjusting method thereof |
| CN114110290A (en) * | 2021-11-27 | 2022-03-01 | 北京工业大学 | Nonlinear self-tuning pipeline vibration noise semi-active control method and system |
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| CN110184906B (en) * | 2019-07-12 | 2020-10-23 | 中铁四局集团第五工程有限公司 | Air bag type magnetorheological elastomer laminated bridge support |
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Cited By (12)
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| CN103615492A (en) * | 2013-11-29 | 2014-03-05 | 重庆材料研究院有限公司 | Suspension type magneto-rheological damper and system |
| CN103615492B (en) * | 2013-11-29 | 2016-05-18 | 重庆材料研究院有限公司 | Suspension type MR damper and system |
| CN103883658A (en) * | 2014-04-08 | 2014-06-25 | 陈曦 | Nano-porous material energy absorption structure packaged by high polymer materials |
| CN103883668A (en) * | 2014-04-08 | 2014-06-25 | 陈曦 | Nano-porous material energy absorption structure based on nested encapsulation of metal and high-polymer materials |
| CN103899702A (en) * | 2014-04-08 | 2014-07-02 | 陈曦 | Nano porous energy absorbing structure based on metal package |
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| CN110730712A (en) * | 2017-08-22 | 2020-01-24 | 宝马股份公司 | Pressure plug for a press and press having a pressure plug |
| US11479005B2 (en) | 2017-08-22 | 2022-10-25 | Bayerische Motoren Werke Aktiengesellschaft | Pressure pin of a press and press having pressure pin |
| CN108105313A (en) * | 2017-11-29 | 2018-06-01 | 重庆理工大学 | Air cushion shock absorber based on magnet controlled damping |
| CN113483049A (en) * | 2021-07-13 | 2021-10-08 | 上海工程技术大学 | Rigidity-adjustable intelligent hydraulic damper and adjusting method thereof |
| CN114110290A (en) * | 2021-11-27 | 2022-03-01 | 北京工业大学 | Nonlinear self-tuning pipeline vibration noise semi-active control method and system |
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