CN104179868B - Active-passive integrated formula electromagnetism isolation mounting - Google Patents
Active-passive integrated formula electromagnetism isolation mounting Download PDFInfo
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- CN104179868B CN104179868B CN201410360150.3A CN201410360150A CN104179868B CN 104179868 B CN104179868 B CN 104179868B CN 201410360150 A CN201410360150 A CN 201410360150A CN 104179868 B CN104179868 B CN 104179868B
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- end surface
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- yoke
- stud
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- 238000002955 isolation Methods 0.000 title claims abstract description 36
- 238000013016 damping Methods 0.000 claims description 15
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 239000012212 insulator Substances 0.000 abstract description 5
- 230000033001 locomotion Effects 0.000 description 6
- 230000001133 acceleration Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Vibration Prevention Devices (AREA)
Abstract
Active-passive integrated formula electromagnetism isolation mounting, it relates to a kind of electromagnetism isolation mounting.The invention solves passive vibration isolation device exist long-pending comparatively large, to the isolation effect of low-frequency vibration there is the low problem of reliability in not good enough and active vibration insulator.Linear bearing is vertically arranged on permanent magnet upper-end surface, upper magnet yoke to be positioned on permanent magnet upper-end surface and to be sleeved on linear bearing, plate-shaped springs is by upper cylinder, lower cylinder is arranged on the top of outer yoke, upper cover is arranged on the top of plate-shaped springs, coil carrier is barrel-shaped in being inverted, the lower end of stud is passed the center hole of plate-shaped springs and is threaded with coil carrier, the middle part of stud is connected by nut thread, described nut is positioned on the upper-end surface of plate-shaped springs, the upper-end surface of cylindrical guide is packed on the lower end surface of stud, the bottom of cylindrical guide is positioned at linear bearing, the bottom of coil carrier is wound with coil, coil is positioned at annular space place.The present invention is for the stage is isolated the vibration passing between aircraft and useful load in orbit.
Description
Technical field
The present invention relates to a kind of electromagnetism isolation mounting, be specifically related to a kind of spacecraft stage electromagnetism isolation mounting that the vibration passing between aircraft and useful load is isolated in orbit.
Background technique
Spacecraft is mounted with usually to the very responsive highi degree of accuracy remote sensing of micro-vibration and detecting devices, requires that support platform has stable mechanical environment.And the vibration acceleration of the dynamic response of the spacecraft structure that the vibration interference of the power equipment that aircraft carries and useful load and instrument and equipment and various disturbance factor cause will cause the micro-vibration of aircraft, affects the pointing accuracy of useful load, stability and image quality.As the vibration of 10 microns in space is equivalent to the range error of 500km on ground.The useful load carried for avoiding spacecraft causes normally working due to the vibration caused by External Force Acting, usually between aircraft and useful load, add isolation mounting, isolate the transmission of vibration to useful load of various moving element on aircraft as far as possible.In this case vibration isolator has just had very great meaning in addition.Traditional usual volume of passive vibration isolation device is comparatively large, not good enough to the isolation effect of low-frequency vibration; Active vibration insulator effect is better, but there is the problems such as reliability is low, once control system breaks down, vibration isolator will total failure.
To sum up, passive vibration isolation device amasss comparatively large, not good enough and active vibration insulator reliability is low to the isolation effect of low-frequency vibration.
Summary of the invention
The present invention be solve passive vibration isolation device exist long-pending comparatively large, to the isolation effect of low-frequency vibration there is the low problem of reliability in not good enough and active vibration insulator, and then provides a kind of active-passive integrated formula electromagnetism isolation mounting.
The present invention solves the problems of the technologies described above the technological scheme taked to be:
Active-passive integrated formula electromagnetism isolation mounting of the present invention comprises permanent magnet, lower yoke, outer yoke, upper magnet yoke, upper cover, lower cylinder, linear bearing, plate-shaped springs, coil, coil carrier, stud, cylindrical guide and two upper cylinders, outer yoke is tubular, lower yoke is packed on the lower end surface of outer yoke, permanent magnet is positioned on the upper-end surface of lower yoke, linear bearing is vertically arranged on permanent magnet upper-end surface, upper magnet yoke to be positioned on permanent magnet upper-end surface and to be sleeved on linear bearing, plate-shaped springs is arranged between two upper cylinders, upper cylinder, lower cylinder is successively set on the upper-end surface of outer yoke, upper cover is arranged on the top of plate-shaped springs, coil carrier is barrel-shaped in being inverted, the lower end of stud is passed the center hole of plate-shaped springs and is threaded with coil carrier, the middle part of stud is connected by nut thread, described nut is positioned on the upper-end surface of plate-shaped springs, the upper-end surface of cylindrical guide is packed on the lower end surface of stud, the bottom of cylindrical guide is positioned at linear bearing, annular space is formed between upper magnet yoke and outer yoke, the bottom of coil carrier is wound with coil, coil is positioned at annular space place.
The invention has the beneficial effects as follows:
The coil carrier of active-passive integrated formula electromagnetism isolation mounting of the present invention is cylindrical structure, the part of coil carrier as mover together with coil moves vertically, annular space place radially direct uniform magnetic field, coil carrier is when doing cutting magnetic induction line motion, coil carrier inside can produce inducing eddy-current, foucault current is subject to the magnetic force of revolting relative movement simultaneously, namely produces damping function; Isochrone coil also bears the effect of winding around, compared with passive vibration isolation device, greatly reduces the volume of isolation mounting;
Active-passive integrated formula electromagnetism isolation mounting of the present invention is compared with active vibration insulator, the amplitude of the first natural frequency that its support stiffness can be introduced when master control Actuators Failures by passive damping of the present invention controls at reduced levels, greatly strengthen the reliability of system.
Accompanying drawing explanation
Fig. 1 is the front sectional view of active-passive integrated formula electromagnetism isolation mounting of the present invention, Fig. 2 is the plan view of plate-shaped springs 9 in embodiment one, Fig. 3 is the front sectional view of upper cover 22 in embodiment 7, Fig. 4 is the hardware system pie graph of active-passive integrated formula electromagnetism isolation mounting of the present invention, and Fig. 5 is the state feedback control system flow chart based on state observer.
Embodiment
Embodiment one: as shown in figures 1-4, the active-passive integrated formula electromagnetism isolation mounting of present embodiment comprises permanent magnet 1, lower yoke 3, outer yoke 4, upper magnet yoke 5, upper cover 22, lower cylinder 8, linear bearing 2, plate-shaped springs 9, coil 21, coil carrier 6, stud 11, cylindrical guide 16 and two upper cylinders 12, outer yoke 4 is tubular, lower yoke 3 is packed on the lower end surface of outer yoke 4, permanent magnet 1 is positioned on the upper-end surface of lower yoke 3, linear bearing 2 is vertically arranged on permanent magnet 1 upper-end surface, upper magnet yoke 5 to be positioned on permanent magnet 1 upper-end surface and to be sleeved on linear bearing 2, plate-shaped springs 9 is arranged between two upper cylinders 12, upper cylinder 12, lower cylinder 8 is successively set on the upper-end surface of outer yoke 4, upper cover 22 is arranged on the top of plate-shaped springs 9, coil carrier 6 is barrel-shaped in being inverted, the lower end of stud 11 is passed the center hole of plate-shaped springs 9 and is threaded with coil carrier 6, the middle part of stud 11 is threaded by nut 19, described nut 19 is positioned on the upper-end surface of plate-shaped springs 9, the upper-end surface of cylindrical guide 16 is packed on the lower end surface of stud 11, the bottom of cylindrical guide 16 is positioned at linear bearing 2, annular space is formed between upper magnet yoke 5 and outer yoke 4, the bottom of coil carrier 6 is wound with coil 21, coil 21 is positioned at annular space place.
Nut 19 is for static line coil 6;
Permanent magnet 1 of the present invention, lower yoke 3, outer yoke 4, upper magnet yoke 5, coil 21 and coil carrier 6 form electromagnetic actuator, i.e. active actuators.Enameled wire loop uniform winding is on coil carrier 6, and in wire, sense of current is vertical between two with coil movement direction with magnetic induction line direction approx.When have in coil electric current by time, according to Ampere force principle, coil can be subject to being directly proportional to electric current, the electromagnetic force of current direction and final controlling element axis parallel, can realize the real-time control to being used as power by the size controlling electric current.
Permanent magnet 1 of the present invention, lower yoke 3, outer yoke 4, upper magnet yoke 5 and coil carrier 6 form inducing eddy-current damper, i.e. passive damping device.When stud 11 drives the relative permanent magnet of coil carrier 6 and yoke motion, coil carrier inside can produce inducing eddy-current, and foucault current is subject to the Ampere force of revolting relative movement simultaneously, namely produces damping function.
The present invention adopts acceleration transducer, current sensor, controller, power amplifier etc. to form unidirectional acceleration and currrent feedback with integrative vibration isolation device.During equipment work, acceleration and current sensor can convert via charge amplifier the AD input end that voltage signal is transferred to controller to by collection signal.The state observation link of this feedback signal in controller obtains the estimated value of real system state and is multiplied with compensation matrix, obtain control signal, power amplifier is outputted to by DA Out let, and finally output to the power interface of integral type vibration isolator, realize the real-time control to vibration isolation vibrating objects state.Compensation matrix is calculated by control algorithm according to the dynamic response of whole system, for considering that passive damping is at interior optimal control algorithm, therefore during active actuators work the vibration isolating effect of entirety belong to initiatively with the result of passive part collaborative work.
Embodiment two: the radial rigidity of present embodiment plate-shaped springs 9 is far longer than the axial rigidity of plate-shaped springs 9.Design like this, can provide support rigidity to by isolation mounting, makes to be moved in the scope of engine request by the resonant frequency of isolation mounting.Other composition and annexation identical with embodiment one.
Embodiment three: the thickness range of present embodiment plate-shaped springs 9 is 0.2 ~ 1mm.Design like this, chooses suitable one-tenth-value thickness 1/10 according to the rigidity requirement of Practical Project to dynamic system.Other composition and annexation identical with embodiment one or two.
Embodiment four: as shown in Figure 1, present embodiment permanent magnet 1 is cylindrical shape, and the diameter of permanent magnet 1 is greater than the height of permanent magnet 1.Design like this, magnetic induction line via soft iron material yoke closed-loop path and form uniform radioactivity magnetic field at annular space place.Other composition and annexation identical with embodiment three.
Embodiment five: as shown in Figure 1, present embodiment coil carrier 6 lower outside wall is along the circumferential direction processed with annular groove, and coil 21 is wrapped on annular groove.Setting like this, coil carrier 6 is passive eddy current damper, can also winding around while pumping in magnetic field.Other composition and annexation and embodiment one, two or four identical.
Embodiment six: as shown in Figure 1, present embodiment permanent magnet 1 is Nd-Fe-B permanent magnet.Other composition and annexation identical with embodiment five.
Embodiment seven: as shown in Figure 3, present embodiment upper cover 22 comprises limited ring 23, damping spring 13, two limit spring 14 and two limiting boards 15, limiting board 15 is in disc-shape, limiting board 15 is processed with central through bore, one end face of limiting board 15 is processed with circular arc concave surface, limited ring 23 is between two limiting boards 15, the circular arc concave surface of two limiting boards 15 is oppositely arranged on the top of electromagnetism vibration isolator, damping spring 13 and two limit spring 14 are positioned at the space that two limiting boards 15 are formed, damping spring 13 is arranged on the stud 11 of electromagnetism vibration isolator by two limit spring 14, two limiting boards 15 are installed on stud 11 and two limiting boards 15 do not contact with stud 11.Design like this, two limiting boards are fixed on the top of electromagnetism vibration isolator, damping spring is arranged on the stud of electromagnetism vibration isolator by two limit spring, damping spring together moves along with the mover of vibration isolator, electromagnetism vibration isolator be subject to comparatively strong impact force time, damping spring edge first touches the surface of contact of limiting board, along with the continuous increase of the relative displacement of vibration isolator mover, the contact face radius of damping spring and limiting board is more and more less, and rigidity is increasing; When the relative displacement of vibration isolator mover reaches design limit; limit spring contacts completely with the surface of contact of limiting board; great rigidity is provided; thus stop mover to continue relative movement; when effectively protecting electromagnetism vibration isolator to be subject to greater impact load, displacement exceeds design runlength and causes electromagnetism vibration isolator permanent damages, and the present invention can provide and to be cushioned impact by little and large stiffness variable and to limit maximum displacement.Other composition and annexation and embodiment one, two, four or six identical.
Claims (7)
1. an active-passive integrated formula electromagnetism isolation mounting, comprise permanent magnet (1), lower yoke (3), upper magnet yoke (5), upper cover (22), linear bearing (2), coil (21), coil carrier (6), permanent magnet (1) is positioned on the upper-end surface of lower yoke (3), upper magnet yoke (5) is positioned on permanent magnet (1) upper-end surface, it is characterized in that: described electromagnetism isolation mounting also comprises outer yoke (4), lower cylinder (8), plate-shaped springs (9), stud (11), cylindrical guide (16) and two upper cylinders (12), outer yoke (4) is tubular, lower yoke (3) is packed on the lower end surface of outer yoke (4), linear bearing (2) is vertically arranged on permanent magnet (1) upper-end surface, upper magnet yoke (5) is sleeved on linear bearing (2), plate-shaped springs (9) is arranged between two upper cylinders (12), upper cylinder (12), lower cylinder (8) is successively set on the upper-end surface of outer yoke (4), upper cover (22) is arranged on the top of plate-shaped springs (9), coil carrier (6) is barrel-shaped in being inverted, the lower end of stud (11) is passed the center hole of plate-shaped springs (9) and is threaded with coil carrier (6), the middle part of stud (11) is connected by nut thread, described nut is positioned on the upper-end surface of plate-shaped springs (9), the upper-end surface of cylindrical guide (16) is packed on the lower end surface of stud (11), the bottom of cylindrical guide (16) is positioned at linear bearing (2), annular space is formed between upper magnet yoke (5) and outer yoke (4), the bottom of coil carrier (6) is wound with coil (21), coil (21) is positioned at annular space place.
2. active-passive integrated formula electromagnetism isolation mounting according to claim 1, is characterized in that: the radial rigidity of plate-shaped springs (9) is far longer than the axial rigidity of plate-shaped springs (9).
3. active-passive integrated formula electromagnetism isolation mounting according to claim 1 and 2, is characterized in that: the thickness range of plate-shaped springs (9) is 0.2 ~ 1mm.
4. active-passive integrated formula electromagnetism isolation mounting according to claim 3, is characterized in that: permanent magnet (1) is cylindrical shape, and the diameter of permanent magnet (1) is greater than the height of permanent magnet (1).
5. the active-passive integrated formula electromagnetism isolation mounting according to claim 1,2 or 4, it is characterized in that: coil carrier (6) lower outside wall is along the circumferential direction processed with annular groove, coil (21) is wrapped on annular groove.
6. active-passive integrated formula electromagnetism isolation mounting according to claim 5, is characterized in that: permanent magnet (1) is Nd-Fe-B permanent magnet.
7. according to claim 1, 2, active-passive integrated formula electromagnetism isolation mounting described in 4 or 6, it is characterized in that: upper cover (22) comprises limited ring (23), damping spring (13), two limit spring (14) and two limiting boards (15), limiting board (15) is in disc-shape, (15) are processed with central through bore to limiting board, one end face of limiting board (15) is processed with circular arc concave surface, limited ring (23) is positioned between two limiting boards (15), the circular arc concave surface of two limiting boards (15) is oppositely arranged on the top of electromagnetism vibration isolator, damping spring (13) and two limit spring (14) are positioned at the space that two limiting boards (15) are formed, damping spring (13) is arranged on the stud (11) of electromagnetism vibration isolator by two limit spring (14), two limiting boards (15) are installed on upper and two limiting boards (15) of stud (11) and do not contact with stud (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410360150.3A CN104179868B (en) | 2014-07-25 | 2014-07-25 | Active-passive integrated formula electromagnetism isolation mounting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410360150.3A CN104179868B (en) | 2014-07-25 | 2014-07-25 | Active-passive integrated formula electromagnetism isolation mounting |
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| Publication Number | Publication Date |
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| CN104179868A CN104179868A (en) | 2014-12-03 |
| CN104179868B true CN104179868B (en) | 2016-04-06 |
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| CN201410360150.3A Expired - Fee Related CN104179868B (en) | 2014-07-25 | 2014-07-25 | Active-passive integrated formula electromagnetism isolation mounting |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976271B (en) * | 2015-07-15 | 2017-04-05 | 安徽工程大学 | It is suitable to the damping adjustment device of MR damper |
| CN106224421B (en) * | 2016-08-31 | 2018-04-03 | 西安交通大学 | The inertia-type actuator and its detection method of a kind of low-frequency compensation |
| CN106763474B (en) * | 2017-03-14 | 2018-12-21 | 北京控制工程研究所 | A kind of all-metal micro-vibration control device of active-passive integratedization |
| CN109322951B (en) * | 2018-11-12 | 2023-05-26 | 中国矿业大学 | Semi-active vibration isolation device |
| CN109737162A (en) * | 2018-12-27 | 2019-05-10 | 哈尔滨工业大学 | A kind of electric and magnetic oscillation recovers energy tuned mass damper |
| CN109737163B (en) * | 2019-02-25 | 2020-12-15 | 株洲时代新材料科技股份有限公司 | Moving coil type actuator for engine active suspension |
| CN110439961B (en) * | 2019-07-19 | 2024-06-21 | 中国船舶重工集团公司第七一九研究所 | Reluctance type electromagnetic active and passive integrated composite vibration isolator |
| CN114499095B (en) * | 2022-04-06 | 2023-05-09 | 哈尔滨工业大学（威海） | Electromagnetic actuator for active vibration isolation platform of spacecraft |
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|---|---|---|---|---|
| JP2006300263A (en) * | 2005-04-22 | 2006-11-02 | Sharp Corp | Vibration damper and stirling engine with the same |
| CN102011822A (en) * | 2010-10-20 | 2011-04-13 | 哈尔滨工程大学 | Hybrid vibration isolator |
| CN202301687U (en) * | 2011-10-10 | 2012-07-04 | 陈先伟 | Low-frequency vibration isolation platform |
| CN102748425A (en) * | 2012-06-15 | 2012-10-24 | 中国人民解放军海军工程大学 | Driving-driven hybrid vibration isolator |
-
2014
- 2014-07-25 CN CN201410360150.3A patent/CN104179868B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006300263A (en) * | 2005-04-22 | 2006-11-02 | Sharp Corp | Vibration damper and stirling engine with the same |
| CN102011822A (en) * | 2010-10-20 | 2011-04-13 | 哈尔滨工程大学 | Hybrid vibration isolator |
| CN202301687U (en) * | 2011-10-10 | 2012-07-04 | 陈先伟 | Low-frequency vibration isolation platform |
| CN102748425A (en) * | 2012-06-15 | 2012-10-24 | 中国人民解放军海军工程大学 | Driving-driven hybrid vibration isolator |
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