CN102829112A - Porous magnetorheological elastomer and buffer device - Google Patents
Porous magnetorheological elastomer and buffer device Download PDFInfo
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- CN102829112A CN102829112A CN2012103541255A CN201210354125A CN102829112A CN 102829112 A CN102829112 A CN 102829112A CN 2012103541255 A CN2012103541255 A CN 2012103541255A CN 201210354125 A CN201210354125 A CN 201210354125A CN 102829112 A CN102829112 A CN 102829112A
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Abstract
The invention discloses a porous magnetorheological elastomer and a buffer device based on the same. The porous magnetorheological elastomer comprises a rubber substrate, gas somas and soft magnetic packing grains. A foaming agent is promoted to decompose and release gases under certain temperature and magnetic field actions in the crosslinking process of substrates magnetorheological elastomers by utilizing a rubber foaming technology, thus, a great number of obturated gas somas are formed in the magnetorheological elastomer; and after the solidification process of the magnetorheological elastomer is ended, the gas somas are implanted in the magnetorheological elastomer to form the porous magnetorheological elastomer. Meanwhile, the soft magnetic packing grains inside the magnetorheological elastomer are distributed in a chain-shaped structure under the action of a magnetic field so that a favorable magnetic effect is achieved. The obturated gas somas are introduced to the magnetorheological elastomer so that the rigidity and dampness changing performances of the magnetorheological elastomer under the action of the magnetic field are improved; and a compression type buffer device is designed by utilizing the porous magnetorheological elastomer so that a better buffering effect can be achieved.
Description
Technical field
The invention belongs to magnetorheological materials and applied technical field, particularly a kind of porous magnetic rheology elastic body reaches the damping device based on the porous magnetic rheology elastic body.
Background technique
Magnetic rheology elastic body is a newcomer in the magnetorheological materials family, in noise and vibration control, controllable stiffness system and sensing element, has broad application prospects.Magnetic rheology elastic body has the viscous characteristics of magnetic flow liquid concurrently, has the elastic property of elastic spacer again, belongs to the intellectual material of a kind of stiffness variable and damping.Yet there is the not high and limited problem of damp adjustable range of magnetic effect in traditional magnetic rheology elastic body, also becomes the bottleneck of magnetic rheology elastic body development.In addition, existing in recent years researcher is applied to magnetic rheology elastic body in the shearing isolation mounting, but magnetic rheology elastic body is very responsive to shearing strain, and magnetic effect descends rapidly under the effect of shearing strain.And under shear mode, there is the low shortcoming of bearing capacity, restricted of the application of this intellectual material in anti-vibration and shock and absorbing field.
Summary of the invention
In view of this, technical problem to be solved by this invention provides a kind of porous magnetic rheology elastic body and reaches the damping device based on the porous magnetic rheology elastic body.
One of the object of the invention is to propose a kind of porous magnetic rheology elastic body; Two of the object of the invention is to propose a kind of damping device based on the porous magnetic rheology elastic body.
The objective of the invention is to realize like this:
One of the object of the invention is realized through following technological scheme:
A kind of porous magnetic rheology elastic body provided by the invention; Comprise rubber matrix, gas cell space, soft magnetism filler particles; Said soft magnetism filler particles can form the chain ordered structure having under the magnetic field environment; Said gas cell space decomposes the gas that produces through the rubber pange agent and forms the gas cell space in the magnetic rheology elastic body matrix, place between the formed segment of soft magnetism filler particles or among the segment; Said gas cell space freely intersperses among in the rubber matrix, and the quantity of said gas cell space is confirmed through the adding quantity of control stabilizer.
Two of the object of the invention is realized through following technological scheme:
A kind of damping device that the present invention proposes based on compact model porous magnetic rheology elastic body; Comprise the porous magnetic rheology elastic body, go up magnetic pole, connecting rod, non-magnetic conduction flat board, lower magnetic pole, field coil and outer sleeve; Said going up between magnetic pole and the lower magnetic pole is provided with the porous magnetic rheology elastic body; Bond non-magnetic conduction of said porous magnetic rheology elastic body one end is dull and stereotyped, and said non-magnetic conduction flat board is provided with connecting rod, and said connecting rod passes from the said through hole of going up the magnetic pole setting; Said upward magnetic pole and lower magnetic pole are sheathed in the outer sleeve, and said going up between magnetic pole, lower magnetic pole and the outer sleeve is provided with field coil.
Further, said porous magnetic rheology elastic body, last magnetic pole, lower magnetic pole, field coil and outer sleeve are formed closed magnetic loop.
Further, said magnetic pole, lower magnetic pole and the porous magnetic rheology elastic body surface of going up all is circular.
Further, said upward magnetic pole, lower magnetic pole and outer sleeve are high permeability material, and said connecting rod and non-magnetic conduction flat board are non-magnetic hard metal material.
Further, the power that said upward magnetic pole, lower magnetic pole are regulated magnetic field in the magnetic loop through the size of current of control field coil, thereby the rigidity and the damping of change porous magnetic rheology elastic body.
Further; Described porous magnetic rheology elastic body; Comprise rubber matrix, gas cell space and soft magnetism filler particles; Said soft magnetism filler particles is having formation chain ordered structure under the magnetic field environment, and said gas cell space decomposes the gas that produces through the rubber pange agent and forms the gas cell space in the magnetic rheology elastic body matrix, will place between the formed segment of soft magnetism filler particles or among the segment; Said gas cell space freely intersperses among in the rubber matrix, and the quantity of said gas cell space is confirmed through the adding quantity of control stabilizer.
The invention has the advantages that: porous magnetic rheology elastic body provided by the invention is based on traditional magnetic rheology elastic body basis; Utilize the foaming technique of rubber; A large amount of closed gas cell spaces is introduced in the magnetic rheology elastic body, improved the rigidity of magnetic rheology elastic body under the action of a magnetic field and the variation characteristic of damping with this.
Compared with prior art have the following advantages:
1, the porous magnetic rheology elastic body can be widened the stiffness variation scope under the action of a magnetic field, and can be through changing the addition of rubber pange agent, and control gaseous cell space quantity plays the effect of regulating damping, improves cushioning effect.
2, the porous magnetic rheology elastic body is because the existence of gas cell space when extraneous percussion, owing to impact, gas cell space generation deformation, is played the effect that strengthens the attenuate shock energy.
3, porous magnetic rheology elastic body compression type damping device has than the better bearing capacity of shear mode; In addition; Owing to the existence of gas cell space, can increase the deformation quantity of magnetic rheology elastic body, increased impact stroke; And can hang down traditional magnetic rheology elastic body strain sensitive characteristic, guarantee that buffer has good effect in the travel range of broad.
Description of drawings
In order to make the object of the invention, technological scheme and advantage clearer, will combine accompanying drawing that the present invention is made further detailed description below, wherein:
Fig. 1 is a porous magnetic rheology elastic body structural representation;
Fig. 2 is a porous magnetic rheology elastic body compression type damping device structural representation.
Among the figure, rubber matrix-11, gas cell space-12, soft magnetism filler particles-13, porous magnetic rheology elastic body-1, last magnetic pole-2, connecting rod-3, non-magnetic conduction flat board-4, lower magnetic pole-5, field coil-6, outer sleeve-7.
Embodiment
Below will combine accompanying drawing, the preferred embodiments of the present invention will be carried out detailed description; Should be appreciated that preferred embodiment has been merely explanation the present invention, rather than in order to limit protection scope of the present invention.
Fig. 1 is a porous magnetic rheology elastic body structural representation; As shown in the figure: a kind of porous magnetic rheology elastic body provided by the invention; Comprise rubber matrix 11, gas cell space 12 and soft magnetism filler particles 13; Said soft magnetism filler particles 13 is having formation chain ordered structure under the magnetic field environment, and said gas cell space 12 decomposes the gas that produces through the rubber pange agent and forms gas cell space 12 in magnetic rheology elastic body rubber matrix 11, place between the soft magnetism filler particles 13 formed segments or among the segment; Said gas cell space 12 freely intersperses among in the rubber matrix, when stabilizer fill many more, in decomposition process, can produce more gas; Otherwise the amount of gas is just few, and 12 quantity of gas cell space is and produces how much being directly proportional of gas that therefore, the quantity of said gas cell space 12 can be confirmed through the adding quantity of control stabilizer.
The rubber pange agent is sneaked in the magnetic rheology elastic body mixture, under the condition that field and heating are arranged, make the magnetic rheology elastic body crosslinking curing, the porous magnetic rheology elastic body structure that obtains is as shown in Figure 1.Closed pore gas cell space freely intersperses among in the magnetic rheology elastic body, can be through the adding quantity of control stabilizer, and the quantity of control gaseous cell space plays the effect of regulating porous magnetic rheology elastic body rigidity and damping.
The magnetic rheology elastic body mixture that has mixed the rubber pange agent is carried out the chain structure orientation of soft magnetic granules under the condition that the field is arranged; Simultaneously magnetic rheology elastic body is carried out temperature control; Can realize on the one hand the crosslinking curing of magnetic rheology elastic body, in the crosslinked process of magnetic rheology elastic body matrix, promote the decomposition of stabilizer also to discharge gas in addition; In magnetic rheology elastic body, form a large amount of closed pore gas cell spaces; After magnetorheological elastomer solidification process end, it is inner that the gas cell space will be implanted magnetic rheology elastic body, forms the porous magnetic rheology elastic body.
Fig. 2 is a porous magnetic rheology elastic body compression type damping device structural representation; As shown in the figure: the damping device based on the porous magnetic rheology elastic body provided by the invention; Comprise porous magnetic rheology elastic body 1, last magnetic pole 2, connecting rod 3, non-magnetic conduction flat board 4, lower magnetic pole 5, field coil 6 and outer sleeve 7; Said going up between magnetic pole 2 and the lower magnetic pole 5 is provided with porous magnetic rheology elastic body 1; Said porous magnetic rheology elastic body 1 one ends are bonded with non-magnetic conduction flat board 4, and said non-magnetic conduction dull and stereotyped 4 is provided with connecting rod 3, and said connecting rod 3 passes from the through hole that said upward magnetic pole 2 is provided with; The said magnetic pole 2 of going up is sheathed in the outer sleeve 7 with lower magnetic pole 5, and said going up between magnetic pole 2, lower magnetic pole 5 and the outer sleeve 7 is provided with field coil 6.
Said porous magnetic rheology elastic body 1, go up magnetic pole 2, lower magnetic pole 5, field coil 6 and outer sleeve 7 and form closed magnetic loops.Said magnetic pole 2, lower magnetic pole 5 and porous magnetic rheology elastic body 1 surface of going up all is circular.Said upward magnetic pole 2, lower magnetic pole 5 and outer sleeve 7 are high permeability material, and said connecting rod 3 is non-magnetic hard metal material with non-magnetic conduction dull and stereotyped 4.The power that said upward magnetic pole 2, lower magnetic pole 5 are regulated magnetic field in the magnetic loop through the size of current of control field coil, thereby the rigidity of change porous magnetic rheology elastic body.
Through the size of current of control field coil, regulate the power in magnetic field in the magnetic loop, thereby change the rigidity of porous magnetic rheology elastic body, realize becoming the performance of rigidity buffer, use the magnetic rheology elastic body of different porosities, the damping of can regulate buffer.The porous magnetic rheology elastic body for preparing is placed the damping device of compression type.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (8)
1. porous magnetic rheology elastic body; It is characterized in that: comprise rubber matrix (11), gas cell space (12) and soft magnetism filler particles (13); Said soft magnetism filler particles (13) is having formation chain ordered structure under the magnetic field environment; Said gas cell space (12) decomposes the gas that produces through the rubber pange agent and forms gas cell space (12) in magnetic rheology elastic body rubber matrix (11), place between the formed segment of soft magnetism filler particles (13) or among the segment; Said gas cell space (12) freely intersperses among in the rubber matrix, and the quantity of said gas cell space (12) is confirmed through the adding quantity of control stabilizer.
2. porous magnetic rheology elastic body according to claim 1 is characterized in that: said stabilizer is and selectes the stabilizer that rubber matrix (11) is complementary.
3. damping device based on compact model according to each described porous magnetic rheology elastic body among the claim 1-2; It is characterized in that: comprise porous magnetic rheology elastic body (1), last magnetic pole (2), connecting rod (3), non-magnetic conduction dull and stereotyped (4), lower magnetic pole (5), field coil (6) and outer sleeve (7); Said going up between magnetic pole (2) and the lower magnetic pole (5) is provided with porous magnetic rheology elastic body (1); Said porous magnetic rheology elastic body (1) one end is bonded with non-magnetic conduction dull and stereotyped (4); Be connected with connecting rod (3) on the said non-magnetic conduction dull and stereotyped (4); Said connecting rod (3) passes from the said upward through hole that magnetic pole (2) is provided with, and said upward magnetic pole (2) and lower magnetic pole (5) are fixed in the outer sleeve (7), and said going up between magnetic pole (2), lower magnetic pole (5) and the outer sleeve (7) is provided with field coil (6).
4. the damping device based on compact model porous magnetic rheology elastic body according to claim 3 is characterized in that: said porous magnetic rheology elastic body (1), last magnetic pole (2), lower magnetic pole (5), field coil (6) and outer sleeve (7) are formed closed magnetic loop.
5. the damping device based on compact model porous magnetic rheology elastic body according to claim 4 is characterized in that: said magnetic pole (2), lower magnetic pole (5) and porous magnetic rheology elastic body (1) surface of going up all is circular.
6. the damping device based on compact model porous magnetic rheology elastic body according to claim 5; It is characterized in that: said upward magnetic pole (2), lower magnetic pole (5) and outer sleeve (7) are high permeability material, and said connecting rod (3) and non-magnetic conduction dull and stereotyped (4) are non-magnetic hard metal material.
7. the damping device based on compact model porous magnetic rheology elastic body according to claim 6; It is characterized in that: the power that said upward magnetic pole (2) and lower magnetic pole (5) are regulated magnetic field in the magnetic loop through the size of current of control field coil, thereby the rigidity and the damping of change porous magnetic rheology elastic body.
8. the damping device based on compact model porous magnetic rheology elastic body according to claim 3; It is characterized in that: said porous magnetic rheology elastic body; Comprise rubber matrix (11), gas cell space (12), soft magnetism filler particles (13); Said soft magnetism filler particles is having formation chain ordered structure under the magnetic field environment; Said gas cell space decomposes the gas that produces through the rubber pange agent and forms the gas cell space in porous magnetic rheology elastic body matrix, place between the formed segment of soft magnetism filler particles or among the segment; Said gas cell space freely intersperses among in the rubber matrix, and the quantity of said gas cell space is confirmed through the adding quantity of control stabilizer.
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Cited By (18)
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|---|---|---|---|---|
| CN103878913A (en) * | 2014-03-13 | 2014-06-25 | 安徽微威胶件集团有限公司 | Pre-structuring device of magneto-rheological elastomer |
| CN104034252A (en) * | 2014-07-01 | 2014-09-10 | 重庆材料研究院有限公司 | Strain gauge based on magnetorheological elastomer |
| CN105723037A (en) * | 2014-03-05 | 2016-06-29 | 韩国机械研究院 | Structure for preventing noise between floors using mr actuator |
| CN107351918A (en) * | 2017-06-19 | 2017-11-17 | 南京航空航天大学 | A kind of magnetic rheology elastic body body mount |
| CN107873682A (en) * | 2017-11-12 | 2018-04-06 | 刘福珍 | The unmanned spraying machine of agricultural |
| CN107989957A (en) * | 2017-11-12 | 2018-05-04 | 刘福珍 | Vehicle-mounted sprayer posture instrument damping device |
| CN109021573A (en) * | 2018-06-20 | 2018-12-18 | 北京航数车辆数据研究所有限公司 | A kind of intellectual material being made of thin spherical joint and magnetic sensitive elastomer |
| CN109087771A (en) * | 2018-10-12 | 2018-12-25 | 北京航空航天大学 | A kind of novel intelligent material being made of porous magnetic rheology elastic body and magnetorheological fluid |
| CN110123624A (en) * | 2019-05-28 | 2019-08-16 | 重庆邮电大学 | Intelligent magnetic control massage machine based on magnetorheological glue |
| CN110284425A (en) * | 2019-07-12 | 2019-09-27 | 吉林建筑大学 | A kind of bladder-type magnetic rheology elastic body ball-type bridge pad |
| CN110318348A (en) * | 2019-07-12 | 2019-10-11 | 中铁四局集团第五工程有限公司 | A kind of sound barrier using bladder-type magnetic rheology elastic body |
| CN110344318A (en) * | 2019-07-12 | 2019-10-18 | 沈阳建筑大学 | A kind of anti-collision bridge pier |
| CN110354593A (en) * | 2019-06-27 | 2019-10-22 | 三一重机有限公司 | A kind of automatically cleaning dust-extraction unit and vehicle |
| CN112555327A (en) * | 2020-12-02 | 2021-03-26 | 重庆大学 | Lattice magneto-rheological intelligent vibration reduction structure, magneto-rheological vibration isolator and manufacturing method thereof |
| CN113175174A (en) * | 2021-06-09 | 2021-07-27 | 重庆大学 | Phase change heat storage plate for building |
| CN113510177A (en) * | 2021-04-28 | 2021-10-19 | 河南科技大学 | Magnetorheological porous soft die and plate forming device |
| CN113770816A (en) * | 2021-09-09 | 2021-12-10 | 广东工业大学 | Magnetorheological elastomer and preparation method and application thereof |
| CN113931929A (en) * | 2021-09-16 | 2022-01-14 | 上海工程技术大学 | Rolling bearing device capable of autonomously damping and reducing noise |
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| CN105723037A (en) * | 2014-03-05 | 2016-06-29 | 韩国机械研究院 | Structure for preventing noise between floors using mr actuator |
| CN105723037B (en) * | 2014-03-05 | 2017-12-08 | 韩国机械研究院 | Utilize the floor gap noise-proof structure of magnetorheological vibrator |
| CN103878913A (en) * | 2014-03-13 | 2014-06-25 | 安徽微威胶件集团有限公司 | Pre-structuring device of magneto-rheological elastomer |
| CN103878913B (en) * | 2014-03-13 | 2016-03-30 | 安徽微威胶件集团有限公司 | The pre-structurizer of a kind of magnetic rheology elastic body |
| CN104034252A (en) * | 2014-07-01 | 2014-09-10 | 重庆材料研究院有限公司 | Strain gauge based on magnetorheological elastomer |
| CN107351918A (en) * | 2017-06-19 | 2017-11-17 | 南京航空航天大学 | A kind of magnetic rheology elastic body body mount |
| CN107873682A (en) * | 2017-11-12 | 2018-04-06 | 刘福珍 | The unmanned spraying machine of agricultural |
| CN107989957A (en) * | 2017-11-12 | 2018-05-04 | 刘福珍 | Vehicle-mounted sprayer posture instrument damping device |
| CN109021573A (en) * | 2018-06-20 | 2018-12-18 | 北京航数车辆数据研究所有限公司 | A kind of intellectual material being made of thin spherical joint and magnetic sensitive elastomer |
| CN109021573B (en) * | 2018-06-20 | 2021-03-16 | 北京航数车辆数据研究所有限公司 | Intelligent material composed of thin-wall hollow sphere and magnetosensitive elastomer |
| CN109087771A (en) * | 2018-10-12 | 2018-12-25 | 北京航空航天大学 | A kind of novel intelligent material being made of porous magnetic rheology elastic body and magnetorheological fluid |
| CN110123624A (en) * | 2019-05-28 | 2019-08-16 | 重庆邮电大学 | Intelligent magnetic control massage machine based on magnetorheological glue |
| CN110354593A (en) * | 2019-06-27 | 2019-10-22 | 三一重机有限公司 | A kind of automatically cleaning dust-extraction unit and vehicle |
| CN110318348A (en) * | 2019-07-12 | 2019-10-11 | 中铁四局集团第五工程有限公司 | A kind of sound barrier using bladder-type magnetic rheology elastic body |
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| CN110318348B (en) * | 2019-07-12 | 2021-02-09 | 中铁四局集团第五工程有限公司 | Sound barrier applying air bag type magnetorheological elastomer |
| CN110284425A (en) * | 2019-07-12 | 2019-09-27 | 吉林建筑大学 | A kind of bladder-type magnetic rheology elastic body ball-type bridge pad |
| CN110344318B (en) * | 2019-07-12 | 2021-04-02 | 沈阳建筑大学 | Anti-collision pier |
| CN112555327A (en) * | 2020-12-02 | 2021-03-26 | 重庆大学 | Lattice magneto-rheological intelligent vibration reduction structure, magneto-rheological vibration isolator and manufacturing method thereof |
| CN113510177A (en) * | 2021-04-28 | 2021-10-19 | 河南科技大学 | Magnetorheological porous soft die and plate forming device |
| CN113510177B (en) * | 2021-04-28 | 2023-03-14 | 河南科技大学 | Magnetorheological porous soft mold and plate forming device |
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| CN113770816A (en) * | 2021-09-09 | 2021-12-10 | 广东工业大学 | Magnetorheological elastomer and preparation method and application thereof |
| CN113931929A (en) * | 2021-09-16 | 2022-01-14 | 上海工程技术大学 | Rolling bearing device capable of autonomously damping and reducing noise |
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