CN102680335A - Test device for testing impact performance of magnetic-sensitive elastomer - Google Patents
Test device for testing impact performance of magnetic-sensitive elastomer Download PDFInfo
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- CN102680335A CN102680335A CN2012101874013A CN201210187401A CN102680335A CN 102680335 A CN102680335 A CN 102680335A CN 2012101874013 A CN2012101874013 A CN 2012101874013A CN 201210187401 A CN201210187401 A CN 201210187401A CN 102680335 A CN102680335 A CN 102680335A
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- Prior art keywords
- magnetosensitive
- type electromagnet
- elastic body
- crossbeam
- guide rod
- 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.)
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- 238000012360 testing method Methods 0.000 title claims abstract description 38
- 229920001971 elastomer Polymers 0.000 title claims abstract description 9
- 230000005291 magnetic effect Effects 0.000 title abstract description 17
- 239000000806 elastomer Substances 0.000 title abstract 5
- 239000000463 material Substances 0.000 claims abstract description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 230000001105 regulatory effect Effects 0.000 claims description 20
- 229910000838 Al alloy Inorganic materials 0.000 claims description 15
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 4
- 229910001020 Au alloy Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 241001484259 Lacuna Species 0.000 claims description 3
- -1 aluminium gold Chemical compound 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000005294 ferromagnetic effect Effects 0.000 claims description 3
- 239000003353 gold alloy Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 5
- 230000005284 excitation Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 229920013657 polymer matrix composite Polymers 0.000 description 1
- 239000011160 polymer matrix composite Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The invention discloses a test device for testing the impact performance of a magnetic-sensitive elastomer, comprising a base, support rods, a cross beam, an adjusting plate, a cross-shaped adjusting shaft, nuts, a guide rod, a drop hammer, a magnetic-sensitive elastomer, a T-shaped electromagnet middle core, screws, an L-shaped electromagnet side core, an upper cover plate and an excitation coil, wherein the base is arranged on the ground and connected with the support rods via threads; the support rods are connected with the cross beam via threads; the cross beam is in clearance fit with the adjusting plate; a longitudinal shaft of the cross-shaped adjusting shaft is in clearance fit with a hole of a strip-shaped plate material on the cross beam, and a transversal shaft of the cross-shaped adjusting shaft is in clearance fit with a circular hole of the adjusting plate; the guide rod is connected with the cross-shaped adjusting shaft via threads; the drop hammer with a circular hole moves along the guide rod, and impacts the magnetic-sensitive elastomer via a square through hole of the upper cover plate; the magnetic-sensitive elastomer is located at the top end of the T-shaped electromagnet middle core; and the bottom end of the T-shaped electromagnet middle core is arranged at the upper end of the base, and the T-shaped electromagnet middle core is connected with the L-shaped electromagnet side core via the screws. The test device disclosed by the invention is simple in structure and convenient for installation, and has practical value in engineering application.
Description
(1) technical field
The present invention relates to a kind of test unit of testing magnetosensitive elastic body impact property, relate in particular to a kind ofly based on the variable proving installation of the magnetic field intensity of electromagnet, this device is used to test the mechanical characteristic after the magnetosensitive elastic body receives shock load.It is simple in structure, is easy to build.Through experimental measurement, principal element that can analyzing influence magnetosensitive elastic body impact property, and explore the impact energy-absorbing mechanism of this material.Belong to magnetic-particle reinforced composite power-magnetic coupling parameter and feature measurement technical field thereof.
(2) background technology
The magnetosensitive elastic body is a kind of by after rubber matrix and magnetic micrometer or the nano-scale particle mixing, and the polymer matrix composite that curing forms under the action of a magnetic field belongs to a kind of novel intelligent material.A large amount of scientific papers of having published show that the static mechanical characteristics of this material and damping characteristic (like Young modulus, modulus of shearing and modulus in compression etc.) all can be regulated by external magnetic field, and mangneto mechanical property zero magnetic field mechanical property is significantly improved.But, also do not see correlative study to this material impact performance, do not retrieve the power-magnetic coupling test equipment and the instrument of this material impact performance of test yet.Yet, will directly have influence on the practical applications of this material at aspects such as the fall protection of exact instrument, car crasses to magnetosensitive elastic body ballistics The Characteristic Study.The present invention has designed a kind of test unit based on the variable test magnetosensitive elastic body impact property of the magnetic field intensity of electromagnet, and the data of test will have great importance to the elastomeric practical applications of magnetosensitive.
(3) summary of the invention
1, purpose:
The purpose of this invention is to provide a kind of test unit of testing magnetosensitive elastic body impact property, it is simple in structure, easy for installation.Magnetosensitive elastic body ballistics response through this measurement device, principal element that can this intellectual material impact property of analyzing influence, and study their rule that influences, and then instruct design and practical applications based on the elastomeric impact energy absorber of magnetosensitive.
2, technical scheme:
See Fig. 1; A kind of test unit of testing magnetosensitive elastic body impact property of the present invention, it comprises: base, pole, crossbeam, adjustable plate, cross regulating shaft, nut, guide rod, drop hammer, magnetosensitive elastic body, T type electromagnet SMIS, screw, L type electromagnet side core, upper cover plate, field coil.Position annexation between them is: base places ground, passes through thread connection between its two protruding ends and the pole; Pass through thread connection between pole and the crossbeam; Crossbeam and adjustable plate clearance fit, adjustable plate can move along the square groove of crossbeam upper end; The interporal lacuna of bar shaped plate cooperates on the longitudinal axis of cross regulating shaft and the crossbeam, the lateral shaft of cross regulating shaft and adjustable plate circular hole clearance fit, four ends of cross regulating shaft all have screw thread, can be respectively locus through fixing itself and crossbeam and adjustable plate of nut; Guide rod and cross regulating shaft pass through thread connection; Round-meshed dropping hammer can be moved along guide rod, through the square through hole impact magnetosensitive elastic body of upper cover plate; The magnetosensitive elastic body is positioned at the top of T type electromagnet SMIS; The bottom of T type electromagnet SMIS places the base upper end, and T type electromagnet SMIS links to each other with L type electromagnet side core through screw; L type electromagnet side core links to each other with upper cover plate through screw; Field coil is wrapped on the T type electromagnet SMIS.
Said base is rectangle sheet material, has the structural member of two measure-alike protruding ends on it that it is an Al-alloy parts.
Said pole is the straight-bar of round section, and it is an Al-alloy parts.
Said crossbeam be by two rectangle plates combine flat structure spare with two bar shaped plate symmetries, its upper end has the square groove of two consistent size, supplies edge down adjustable plate, is Al-alloy parts.
Said adjustable plate is the Sheet Rectangular structural member, is the aluminium gold alloy components.
Said cross regulating shaft is the right-angled intersection axle, comprises the longitudinal axis and transverse axis two parts.It is a cast member, is Al-alloy parts.
Said nut is commercial an of standard, totally four;
Said guide rod is the straight-bar of round section, and it is an Al-alloy parts.
Said dropping hammer is the mass of square-section, and its inside has manhole, the material that material selection electrical pure iron or other intensity and magnetoconductivity are all very high.
Said magnetosensitive elastic body is a self-made components, is mixed by ferromagnetic particle and rubber matrix, and it is shaped as rectangular parallelepiped.
Said T type electromagnet SMIS is the structural member that section is the T type, the material that its material selection electrical pure iron or other intensity and magnetoconductivity are all very high.
Said screw is commercial, totally 8.
Said L type electromagnet side core is the structural member that section is the L type, the material that its material selection electrical pure iron or other intensity and magnetoconductivity are all very high.
Said upper cover plate is a flat structure spare, and the center has the square through hole, is provided with screw fixed hole all around, the material that its material selection electrical pure iron or other intensity and magnetoconductivity are all very high.
Said field coil is a self-made components, by the coiling of enamel-cover copper conductor.
Wherein, the quantity of pole is 4; The quantity of guide rod is 1.
Principle of work of the present invention and flow process are following:
At first, field coil is switched on.Secondly, the height that needs according to calculating that drops hammer is placed on the relevant position on the guide rail.After treating that device does not have extraneous load interference, release is dropped hammer, and it is moved along guide rod straight down.Having dropping hammer of certain speed will impact the magnetosensitive elastic body through the square through hole of upper cover plate, at this moment, will produce uniform magnetic field in magnetosensitive elastic body zone, and magnetic circuit is shown in Fig. 2 (b).Simultaneously, utilize suitable surveying instrument, magnetosensitive elastic body impact mechanical performance is tested.
3. a kind of advantage of testing the test unit of magnetosensitive elastic body impact property of the present invention:
1. this test unit relates in particular to a kind ofly based on the adjustable proving installation of the magnetic field intensity of electromagnet, can test under the different magnetic field intensity the elastomeric ballistics response of magnetosensitive.
2. this test unit can be realized dropping hammer with the elastomeric operating mode of friction speed drop impact magnetosensitive, and then research magnetosensitive elastic body receives the mechanical response under the friction speed impact.
3. this test unit compact conformation is easy for installation, economical and practical.
4. pass through the test figure of this test unit; Principal element (like particle volume number percent, particle size, particle shape etc.) that can analyzing influence magnetosensitive elastic body impact property; And study the rule that influences of these factors, explore the elastomeric energy-absorbing mechanism of magnetosensitive.
(4) description of drawings
Fig. 1 (a) is a kind of test unit isometric view of testing magnetosensitive elastic body impact property of the present invention
Fig. 1 (b) is a header portion enlarged diagram of the present invention
Fig. 1 (c) is a base portion enlarged diagram of the present invention
Fig. 2 (a) is a kind of test unit front elevation of testing magnetosensitive elastic body impact property of the present invention
Fig. 2 (b) is a field coil part enlarged diagram of the present invention
Symbol description is following among the figure:
1 base; 2 poles; 3 crossbeams; 4 adjustable plates; 5 cross regulating shafts; 6 nuts; 7 guide rods; 8 drop hammer; 9 magnetosensitive elastic bodys; 10 T type electromagnet SMIS; 11 screws; 12 L type electromagnet side cores; 13 upper cover plates; 14 field coils.
(5) embodiment
Below in conjunction with accompanying drawing the present invention is explained in further detail:
See Fig. 1 (a), Fig. 1 (b), Fig. 1 (c) and Fig. 2 (a), a kind of test unit of testing magnetosensitive elastic body impact property of the present invention, it comprises: base 1; Pole 2; Crossbeam 3; Adjustable plate 4; Cross regulating shaft 5; Nut 6; Guide rod 7; Drop hammer 8; Magnetosensitive elastic body 9; T type electromagnet SMIS 10; Screw 11; L type electromagnet side core 12; Upper cover plate 13; Field coil 14.Position annexation between them is:
Said base 1 is rectangular flat and the structural member that has two measure-alike protruding ends, and it is an Al-alloy parts.
Said pole 2 is straight-bars of round section, and it is an Al-alloy parts, totally four.
Said crossbeam 3 be by two rectangle plates combine flat structure spare with two bar shaped plate symmetries, its upper end has the square groove of two consistent size, supplies edge down adjustable plate 4, is Al-alloy parts.
Said adjustable plate 4 is Sheet Rectangular structural members, is the aluminium gold alloy components.
Said cross regulating shaft 5 is right-angled intersection axles, comprises the longitudinal axis and transverse axis two parts.It is a cast member, is Al-alloy parts.
Said nut 6 is commercial of standards, totally four;
Said guide rod 7 is straight-bars of round section, and it is an Al-alloy parts, is 1.
Said dropping hammer 8 is masses of square-section, and its inside has manhole, the material that material selection electrical pure iron or other intensity and magnetoconductivity are all very high.
Said magnetosensitive elastic body is a self-made components, is mixed by ferromagnetic particle and rubber matrix, and it is shaped as rectangular parallelepiped.
Said T type electromagnet SMIS 10 is structural members that section is the T type, the material that its material selection electrical pure iron or other intensity and magnetoconductivity are all very high.
Said screw 11 is commercial, totally 8.
Said L type electromagnet side core 12 is structural members that section is the L type, the material that its material selection electrical pure iron or other intensity and magnetoconductivity are all very high.
Said upper cover plate 13 is flat structure spares, and the center has the square through hole, is provided with screw fixed hole all around, the material that its material selection electrical pure iron or other intensity and magnetoconductivity are all very high.
Said field coil 14 is self-made components, by the coiling of enamel-cover copper conductor.
At first, to field coil 14 energisings.Secondly, 8 height according to the calculating needs that drop hammer are placed on the relevant position on the guide rail 7.After treating that device does not have extraneous load interference, discharge and drop hammer 8, it is moved along guide rod 7 straight down.Having dropping hammer of certain speed 8 will be through the square through hole of upper cover plate 13, impacts magnetosensitive elastic body 9, at this moment, will produce uniform magnetic fields in magnetosensitive elastic body 9 zones, and magnetic circuit is shown in Fig. 2 (b).Simultaneously, utilize suitable surveying instrument, carry out the test of magnetosensitive elastic body impact mechanical performance.
Claims (2)
1. test unit of testing magnetosensitive elastic body impact property is characterized in that: it comprises base, pole, crossbeam, adjustable plate, cross regulating shaft, nut, guide rod, drops hammer, magnetosensitive elastic body, T type electromagnet SMIS, screw, L type electromagnet side core, upper cover plate and field coil; Base places ground, passes through thread connection between its two protruding ends and the pole; Pass through thread connection between pole and the crossbeam; Crossbeam and adjustable plate clearance fit, adjustable plate can move along the square groove of crossbeam upper end; The interporal lacuna of bar shaped plate cooperates on the longitudinal axis of cross regulating shaft and the crossbeam, the lateral shaft of cross regulating shaft and adjustable plate circular hole clearance fit, and four ends of cross regulating shaft all have screw thread, respectively the locus through fixing itself and crossbeam and adjustable plate of nut; Guide rod and cross regulating shaft pass through thread connection; Round-meshed dropping hammer moved along guide rod, through the square through hole impact magnetosensitive elastic body of upper cover plate; The magnetosensitive elastic body is positioned at the top of T type electromagnet SMIS; The bottom of T type electromagnet SMIS places the base upper end, and T type electromagnet SMIS links to each other with L type electromagnet side core through screw; L type electromagnet side core links to each other with upper cover plate through screw; Field coil is wrapped on the T type electromagnet SMIS;
Said base is rectangle sheet material, has the structural member of two measure-alike protruding ends on it that it is an Al-alloy parts;
Said pole is the straight-bar of round section, and it is an Al-alloy parts;
Said crossbeam be by two rectangle plates combine flat structure spare with two bar shaped plate symmetries, its upper end has the square groove of two consistent size, supplies edge down adjustable plate, is Al-alloy parts;
Said adjustable plate is the Sheet Rectangular structural member, is the aluminium gold alloy components;
Said cross regulating shaft is the right-angled intersection axle, comprises the longitudinal axis and transverse axis two parts, and it is an aluminium alloy casting spare;
Said nut is commercial an of standard, totally four;
Said guide rod is the straight-bar of round section, and it is an Al-alloy parts;
Said dropping hammer is the mass of square-section, and its inside has manhole, material selection electrical pure iron or other intensity and the high material of magnetoconductivity;
Said magnetosensitive elastic body is a self-made components, is mixed by ferromagnetic particle and rubber matrix, and it is shaped as rectangular parallelepiped;
Said T type electromagnet SMIS is the structural member that section is the T type, its material selection electrical pure iron or other intensity and the high material of magnetoconductivity;
Said screw is commercial, totally 8;
Said L type electromagnet side core is the structural member that section is the L type, its material selection electrical pure iron or other intensity and the high material of magnetoconductivity;
Said upper cover plate is a flat structure spare, and the center has the square through hole, is provided with screw fixed hole all around, its material selection electrical pure iron or other intensity and the high material of magnetoconductivity;
Said field coil is a self-made components, by the coiling of enamel-cover copper conductor.
2. a kind of test unit of testing magnetosensitive elastic body impact property according to claim 1 is characterized in that: the quantity of this pole is 4, and the quantity of guide rod is 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210187401 CN102680335B (en) | 2012-06-07 | 2012-06-07 | Test device for testing impact performance of magnetic-sensitive elastomer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210187401 CN102680335B (en) | 2012-06-07 | 2012-06-07 | Test device for testing impact performance of magnetic-sensitive elastomer |
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| Publication Number | Publication Date |
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| CN102680335A true CN102680335A (en) | 2012-09-19 |
| CN102680335B CN102680335B (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210187401 Expired - Fee Related CN102680335B (en) | 2012-06-07 | 2012-06-07 | Test device for testing impact performance of magnetic-sensitive elastomer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105628494A (en) * | 2016-01-27 | 2016-06-01 | 北京航空航天大学 | Clamp with magnetic field generator for testing impact shearing characteristic of magnetic-sensing elastomer |
| CN110006769A (en) * | 2019-04-25 | 2019-07-12 | 周家春 | A kind of elastic properties of materials detection device with rock-steady structure |
| CN111413232A (en) * | 2020-03-30 | 2020-07-14 | 上海大学 | Device for testing hardness under magnetic field |
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2012
- 2012-06-07 CN CN 201210187401 patent/CN102680335B/en not_active Expired - Fee Related
Patent Citations (5)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105628494A (en) * | 2016-01-27 | 2016-06-01 | 北京航空航天大学 | Clamp with magnetic field generator for testing impact shearing characteristic of magnetic-sensing elastomer |
| CN110006769A (en) * | 2019-04-25 | 2019-07-12 | 周家春 | A kind of elastic properties of materials detection device with rock-steady structure |
| CN111413232A (en) * | 2020-03-30 | 2020-07-14 | 上海大学 | Device for testing hardness under magnetic field |
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| CN102680335B (en) | 2013-12-25 |
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Inventor after: Sun Lingyu Inventor after: Leng Dingxin Inventor after: Ma Fujun Inventor after: Chen Weiwei Inventor before: Sun Lingyu Inventor before: Leng Dingxin Inventor before: Ma Fujun Inventor before: Chen Weiwei |
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