CN108708930B - Magnetorheological elastomer pipeline damper - Google Patents
Magnetorheological elastomer pipeline damper Download PDFInfo
- Publication number
- CN108708930B CN108708930B CN201810810183.1A CN201810810183A CN108708930B CN 108708930 B CN108708930 B CN 108708930B CN 201810810183 A CN201810810183 A CN 201810810183A CN 108708930 B CN108708930 B CN 108708930B
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- CN
- China
- Prior art keywords
- clamping mechanism
- magnetorheological elastomer
- connecting piece
- bent
- sliding block
- 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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- 229920001971 elastomer Polymers 0.000 title claims abstract description 59
- 239000000806 elastomer Substances 0.000 title claims abstract description 55
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 239000006096 absorbing agent Substances 0.000 claims abstract description 12
- 230000035939 shock Effects 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000013016 damping Methods 0.000 abstract description 8
- 230000008859 change Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 230000005291 magnetic effect Effects 0.000 description 12
- 230000009467 reduction Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/03—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2224/00—Materials; Material properties
- F16F2224/04—Fluids
- F16F2224/045—Fluids magnetorheological
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/06—Stiffness
- F16F2228/066—Variable stiffness
Abstract
The invention discloses a magnetorheological elastomer pipeline shock absorber which comprises four bent columns, coils, a magnetorheological elastomer, a clamping mechanism, a connecting piece and a clamping mechanism, wherein the connecting piece is arranged on the four bent columns; the clamping mechanism is positioned in the middle of the whole shock absorber; connecting pieces are uniformly distributed outside the clamping mechanism, and one end of each connecting piece is fixedly connected with the clamping mechanism; the coil is sleeved outside one end of the connecting piece, and two sides of the connecting piece are respectively connected with one magnetorheological elastomer; the other end of the magnetorheological elastomer is connected with the bent column; the coil is sleeved outside the bent column; a clamping mechanism is arranged between two adjacent bent columns; the clamping mechanism connects the four bent columns into an annular body and clamps the magnetorheological elastomer and the connecting piece. The magnetorheological elastomer pipeline damper can change the frequency according to the vibration, achieves the effect of frequency shift vibration damping, and has universality on pipelines.
Description
Technical Field
The invention belongs to the field of vibration damping of pipelines, and particularly relates to a magnetorheological elastomer pipeline damper.
Background
The magnetorheological elastomer is a new branch of a magnetorheological material, is prepared by mixing micrometer-scale ferromagnetic particles into a high-molecular polymer, and controlling the continuous change of mechanical, electrical, magnetic and other properties of the material under a magnetic field environment to solidify the particles, so that the particles in a matrix have a chain or columnar structure, and the magnetorheological elastomer has the advantages of high technical characteristics of controllability, reversibility, rapid response and the like, has the unique advantages of good stability and the like, overcomes the defects of easy sedimentation, poor stability and the like of the magnetorheological fluid, and is more and more important in recent years, and becomes a hot spot for the research of the magnetorheological material. The magnetorheological elastomer is successfully used in the vibration reduction and noise reduction fields, such as a suspension system, a shaft bushing, a vibration absorber and the like, and has a wide application prospect.
The prior pipeline vibration damper technology mostly adopts vibration absorption and vibration reduction technology of an external spring, rubber or metal plate, and the vibration damper plays a certain role in vibration reduction, but the deformation amount of the spring, the rubber or other materials is limited because of the limit value, so that the vibration energy transmitted by the vibration damper cannot be correspondingly regulated according to the size or the frequency of the vibration, and therefore, the vibration damper has no universality and needs to be regulated according to different pipelines. The magnetorheological elastomer pipeline damper is designed to be suitable for pipelines based on the characteristic that the rigidity of the magnetorheological elastomer changes in a magnetic field environment, the damper can correspondingly adjust the current passing through a coil according to the vibration size and frequency of the pipelines, so that the internal magnetic field size of the damper is changed, the magnetorheological elastomer reacts according to the strength of the magnetic field, the natural frequency of the damper is changed to achieve the frequency shift damping effect, and the damper is applicable to most pipelines.
Disclosure of Invention
The invention aims to provide a magnetorheological elastomer pipeline damper so as to solve the problems that a pipeline system is not easy to damp, the conventional pipeline damping technology does not have universality and the like, and the effect of universality on a plurality of pipelines is achieved through the characteristics of a novel material magnetorheological elastomer.
The technical solution for realizing the purpose of the invention is as follows:
a magneto-rheological elastomer pipeline shock absorber comprises four bent columns, coils, magneto-rheological elastomers, a clamping mechanism, a connecting piece and a clamping mechanism;
the clamping mechanism is positioned in the middle of the whole shock absorber; connecting pieces are uniformly distributed outside the clamping mechanism, and one end of each connecting piece is fixedly connected with the clamping mechanism; the coil is sleeved outside one end of the connecting piece, and two sides of the connecting piece are respectively connected with one magnetorheological elastomer; the other end of the magnetorheological elastomer is connected with the bent column; the coil is sleeved outside the bent column; a clamping mechanism is arranged between two adjacent bent columns; the clamping mechanism connects the four bent columns into an annular body and clamps the magnetorheological elastomer and the connecting piece.
Compared with the prior art, the invention has the remarkable advantages that:
(1) The magnetorheological elastomer pipeline damper can change the frequency according to the vibration, achieves the effect of frequency shift vibration damping, and has universality on pipelines.
(2) The magnetorheological elastomer pipeline shock absorber has 4 magnetic loops, is more convenient to control the magnetorheological elastomer and has high magnetic field utilization rate.
(3) The symmetrical structure of the magnetorheological elastomer pipeline damper is convenient to process.
(4) The clamping mechanism of the magnetorheological elastomer pipeline damper is adjustable, and is convenient for clamping pipelines with different pipe diameters.
(5) The magnetorheological elastomer pipeline damper expands the damping range through the elastomer.
The invention is described in further detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a magnetorheological elastomer tube shock absorber of the present invention.
Fig. 2 is a schematic structural view of the connector of the present invention.
Fig. 3 is a schematic structural view of the clamping mechanism of the present invention.
FIG. 4 is a schematic structural view of a magnetorheological elastomer of the present invention.
Fig. 5 shows the internal magnetic circuit and direction of the magnetorheological elastomer tube shock absorber of the present invention.
Detailed Description
For the purpose of illustrating the technical scheme and technical purposes of the present invention, the present invention is further described below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the magnetorheological elastomer pipeline damper comprises four bent columns 4, a coil 5, a magnetorheological elastomer 3, a clamping mechanism 6, a connecting piece 2 and a clamping mechanism 1;
the clamping mechanism 1 is positioned in the middle of the whole shock absorber and is used for clamping a pipeline; connecting pieces 2 are uniformly distributed outside the clamping mechanism 1, and one end of each connecting piece 2 is fixedly connected with the clamping mechanism 1; a coil 5 is sleeved outside one end of the connecting piece 2, and two sides of the connecting piece 2 are respectively connected with one magnetorheological elastomer 3; the other end of the magnetorheological elastomer 3 is connected with a bent column 4; the coil 5 is sleeved outside the bent column 4; a clamping mechanism 6 is arranged between two adjacent bent columns 4; the clamping mechanism 6 connects the four bending posts into an annular body and simultaneously clamps the magnetorheological elastomer 3 with the connecting piece 2.
In some embodiments, the connecting member 2 is a transmission strut.
In other embodiments, with reference to fig. 2, the connecting element 2 comprises a transmission strut 10, a sliding block 8, an elastomer 9; the coil 5 is sleeved outside one end of the transmission support column 10, the elastic body 9 is sleeved outside the coil 5, and the sliding block 8 is sleeved outside the other end of the transmission support column 10; the elastic body 9 is positioned between the sliding block 8 and the clamping mechanism 1, and the elastic body 9 is in a precompressed state; the transmission support column 10 can slide relative to the sliding block 8; when the pipeline in the clamping mechanism 1 vibrates, the vibration is transmitted to the transmission support column 10 through the clamping mechanism 1, the transmission support column 10 slides relative to the sliding block 8, at the moment, the distance between the clamping mechanism 1 and the sliding block 8 changes, and the elastic body 9 deforms to play a role in further vibration reduction.
Further, the elastic body 9 is a spring or rubber.
As an embodiment, referring to fig. 3, the clamping mechanism 6 includes a clamping plate 11, an adjusting nut 13, and a bolt 12; clamping plates 11 are fixedly connected to two ends of the bent column 4; a plurality of bolts 12 are arranged between the two clamping plates 11 at two sides of the transmission support column 10 to be connected, the adjusting nuts 13 are connected with the bolts 12, and the clamping of the clamping mechanism 6 can be realized by tightening the nuts 13.
Preferably, the clamping mechanism 1 comprises a clamping ring, a plurality of adjusting bolts 7 are arranged on the clamping ring, the clamping ring is fixed with the pipeline by screwing the adjusting bolts 7, and the damper can be fixed with pipelines with different outer diameters.
In some embodiments, the clamping ring is formed of two semicircular rings that are bolted together to form a ring.
Further, in combination with fig. 4, the mounting holes are formed at two ends of the magnetorheological elastomer 3, the connecting columns are formed at two ends of the bent column 4, the connecting columns are also formed at two ends of the sliding block 8, and the connecting columns of the sliding block 8 and the bent column 4 are connected in the mounting holes of the magnetorheological elastomer 3 so as to perform mounting positioning, and the magnetorheological elastomer 3, the sliding block 8 and the bent column 4 are prevented from relative displacement in the vibration process, so that the connection is more reliable.
When the damper is used in combination with fig. 5, the clamping mechanism 6 of the damper is fixed with a pipeline, the pipeline vibrates when fluid passes through the pipeline, the vibration is transmitted to the connecting piece through the clamping mechanism, part of vibration energy in the transmission process is converted into deformation energy of the elastomer, the motor is controlled by the damper according to the vibration size to provide direct current signals with corresponding sizes for the coil, four magnetic loops are generated inside the damper, each magnetic loop respectively passes through two adjacent magnetorheological elastomers, the strength of a magnetic field in the damper is correspondingly changed due to the change of the current size, the rigidity and the damping of the magnetorheological elastomers are changed along with the change of the magnetic field, so that the natural frequency of the damper is changed, and the excitation signal frequency resonance area in the vibration of the pipeline is avoided, so that the effects of damping and noise reduction are achieved.
Claims (5)
1. The magnetorheological elastomer pipeline shock absorber is characterized by comprising four bent columns (4), a coil (5), a magnetorheological elastomer (3), a clamping mechanism (6), a connecting piece (2) and a clamping mechanism (1);
the clamping mechanism (1) is positioned in the middle of the whole shock absorber; connecting pieces (2) are uniformly distributed outside the clamping mechanism (1), and one end of each connecting piece (2) is fixedly connected with the clamping mechanism (1); a coil (5) is sleeved outside one end of the connecting piece (2), and two sides of the connecting piece (2) are respectively connected with one magnetorheological elastomer (3); the other end of the magnetorheological elastomer (3) is connected with the bent column (4); a coil (5) is sleeved outside the bent column (4); a clamping mechanism (6) is arranged between two adjacent bent columns (4); the clamping mechanism (6) connects the four bent columns into an annular body, and simultaneously clamps the magnetorheological elastomer (3) and the connecting piece (2);
the connecting piece (2) comprises a transmission support column (10), a sliding block (8) and an elastic body (9); a coil (5) is sleeved outside one end of the transmission support column (10), an elastic body (9) is sleeved outside the coil (5), and a sliding block (8) is sleeved outside the other end of the transmission support column (10); the elastic body (9) is positioned between the sliding block (8) and the clamping mechanism (1), and the elastic body (9) is in a precompressed state; the transmission support column (10) can slide relative to the sliding block (8); when the pipeline in the clamping mechanism (1) vibrates, the vibration is transmitted to the transmission support column (10) through the clamping mechanism (1), the transmission support column (10) slides relative to the sliding block (8), the distance between the clamping mechanism (1) and the sliding block (8) is changed, and the elastic body (9) is deformed to further damp;
the elastic body (9) is a spring or rubber.
2. The magnetorheological elastomer pipe damper according to claim 1, wherein the clamping mechanism (6) comprises a clamping plate (11), an adjusting nut (13), a bolt (12); clamping plates (11) are fixedly connected to two ends of the bent column (4); a plurality of bolts (12) are arranged between two clamping plates (11) on two sides of the transmission support column (10) to be connected, an adjusting nut (13) is connected with the bolts (12), and the clamping mechanism (6) is clamped by tightening the adjusting nut (13).
3. Magnetorheological elastomer pipeline damper according to claim 1, characterized in that the clamping mechanism (1) comprises a clamping ring, a plurality of adjusting bolts (7) are arranged on the clamping ring, and the clamping ring is fixed with the pipeline by screwing the adjusting bolts (7).
4. The magnetorheological elastomer tube shock absorber of claim 3 wherein the clamp ring is formed from two semicircular rings that are bolted together to form a ring.
5. The magnetorheological elastomer pipeline damper according to claim 1, wherein mounting holes are formed in two ends of the magnetorheological elastomer (3), connecting columns are arranged at two ends of the bent column (4), connecting columns are arranged at two ends of the sliding block (8), and the connecting columns of the sliding block (8) and the connecting columns of the bent column (4) are connected in the mounting holes of the magnetorheological elastomer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810810183.1A CN108708930B (en) | 2018-07-20 | 2018-07-20 | Magnetorheological elastomer pipeline damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810810183.1A CN108708930B (en) | 2018-07-20 | 2018-07-20 | Magnetorheological elastomer pipeline damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108708930A CN108708930A (en) | 2018-10-26 |
| CN108708930B true CN108708930B (en) | 2023-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201810810183.1A Active CN108708930B (en) | 2018-07-20 | 2018-07-20 | Magnetorheological elastomer pipeline damper |
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| CN (1) | CN108708930B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654324A (en) * | 2019-02-28 | 2019-04-19 | 沈阳天眼智云信息科技有限公司 | Magnetorheological pipe vibration-damping system and oscillation damping method |
| CN110319150B (en) * | 2019-06-28 | 2020-12-04 | 南京理工大学 | Magnetorheological elastomer-magnetorheological fluid composite shock absorber for rotary vibration |
| CN110410612B (en) * | 2019-08-15 | 2021-04-09 | 武汉理工大学 | Frequency modulation pipeline shock absorber based on magnetorheological elastomer |
| CN115139497A (en) * | 2021-03-30 | 2022-10-04 | 南京航空航天大学 | Method for regulating and controlling machining quality of free bending pipe fitting by novel silicon rubber-based medium core |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130127098A1 (en) * | 2011-11-23 | 2013-05-23 | Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University) | Variable differential mount apparatus using magnetorheological elastomer |
| CN106382325A (en) * | 2016-11-10 | 2017-02-08 | 南京理工大学 | Magnetorheological elastomer vibration isolator based on shearing-compression composite mode |
| CN107421729A (en) * | 2017-08-11 | 2017-12-01 | 南京理工大学 | A kind of MR elastomer vibration isolator dynamic performance testing system |
| CN107524741A (en) * | 2017-07-28 | 2017-12-29 | 上海工程技术大学 | A kind of magnetic rheology elastic body suspension members for wheel hub motor |
| CN108278319A (en) * | 2017-12-01 | 2018-07-13 | 北京理工大学 | A kind of dynamical system broadband magnetic rheology elastic body dynamic tuning bump leveller |
| CN208831577U (en) * | 2018-07-20 | 2019-05-07 | 南京理工大学 | Magnetic rheology elastic body pipe shock absorptor |
-
2018
- 2018-07-20 CN CN201810810183.1A patent/CN108708930B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130127098A1 (en) * | 2011-11-23 | 2013-05-23 | Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University) | Variable differential mount apparatus using magnetorheological elastomer |
| CN106382325A (en) * | 2016-11-10 | 2017-02-08 | 南京理工大学 | Magnetorheological elastomer vibration isolator based on shearing-compression composite mode |
| CN107524741A (en) * | 2017-07-28 | 2017-12-29 | 上海工程技术大学 | A kind of magnetic rheology elastic body suspension members for wheel hub motor |
| CN107421729A (en) * | 2017-08-11 | 2017-12-01 | 南京理工大学 | A kind of MR elastomer vibration isolator dynamic performance testing system |
| CN108278319A (en) * | 2017-12-01 | 2018-07-13 | 北京理工大学 | A kind of dynamical system broadband magnetic rheology elastic body dynamic tuning bump leveller |
| CN208831577U (en) * | 2018-07-20 | 2019-05-07 | 南京理工大学 | Magnetic rheology elastic body pipe shock absorptor |
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| Publication number | Publication date |
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| CN108708930A (en) | 2018-10-26 |
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