CN105937574A - Passive vibration reducing bracket for flywheel high-frequency micro vibration - Google Patents
Passive vibration reducing bracket for flywheel high-frequency micro vibration Download PDFInfo
- Publication number
- CN105937574A CN105937574A CN201510917719.6A CN201510917719A CN105937574A CN 105937574 A CN105937574 A CN 105937574A CN 201510917719 A CN201510917719 A CN 201510917719A CN 105937574 A CN105937574 A CN 105937574A
- Authority
- CN
- China
- Prior art keywords
- flywheel
- damping frame
- damping
- frequency micro
- platform
- 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.)
- Pending
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Classifications
-
- 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
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members
- F16F7/128—Vibration-dampers; Shock-absorbers using plastic deformation of members characterised by the members, e.g. a flat strap, yielding through stretching, pulling apart
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/66—Arrangements or adaptations of apparatus or instruments, not otherwise provided for
-
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/30—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium
- F16F9/306—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium of the constrained layer type, i.e. comprising one or more constrained viscoelastic layers
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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
- F16F2224/00—Materials; Material properties
- F16F2224/02—Materials; Material properties solids
- F16F2224/025—Elastomers
-
- 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
- F16F2230/00—Purpose; Design features
- F16F2230/40—Multi-layer
-
- 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
- F16F2236/00—Mode of stressing of basic spring or damper elements or devices incorporating such elements
- F16F2236/10—Shear
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a passive vibration reducing bracket for flywheel high-frequency micro vibration. The lower end of an upper platform of a flywheel vibration reducing bracket is in threaded connection with three viscoelasticity dampers; the three viscoelasticity dampers are distributed at the periphery by 120 degrees; a lower platform of the flywheel vibration reducing bracket is of a disc-shaped structure, and is connected with lower flange plates of the viscoelasticity dampers and a whole-star platform; the viscoelasticity dampers consist of middle columns, damping material restraint layers and damper outer layer sleeves; the damping material restraint layers are in a scissoring form consisting of inner shearing layers and outer shearing layers; the inner shearing layers are contacted with the middle columns; and the outer shearing layers are contacted with the damper outer layer sleeves. The passive vibration reducing bracket is simple in structure and light in weight, and effectively attenuates the high-frequency micro vibration part of a flywheel under the condition of guaranteeing effective rigidity; high-damping viscoelasticity materials are selected to optimize the bracket structure parameters; the viscoelasticity dampers are used for dissipating the vibrating energy; and quick attenuation of vibration generated by rotation of the flywheel can be realized.
Description
Technical field
The present invention relates to a kind of flywheel damping frame, be specifically related to a kind of for the passive damping frame of flywheel high frequency micro vibration.
Background technology
Along with space development and the development of detected event technology, spacecraft and entrained precision equipment thereof is made to require that track props up
Support platform has the mechanical environment in super quiet meaning, and for ensureing accuracy of instrument, damping technology is the most no longer made something perfect even more perfect
" decorate ".Therefore the high frequency micro vibration produced in spacecraft work process must be isolated, vibration damping and suppression, by
On satellite, flywheel turns parts at high speeds rotates, and sensitive load is produced by the motion of solar panel and attitude of satellite change
Raw impact, prior art still it is impossible to ensure that on satellite some high accuracy, the device of high stability maintain normal work, for
This carries out Vibration Damping Technology Study for satellite typical case's actuator high frequency micro vibration.
Summary of the invention
For the problems referred to above, the invention provides a kind of for the passive damping frame of flywheel high frequency micro vibration, it is possible to it is right to realize
High-damping effect under the high frequency of flywheel rotary course generation, small vibration environment.
The purpose of the present invention is achieved through the following technical solutions: a kind of for the passive damping frame of flywheel high frequency micro vibration,
Including upper mounting plate and the lower platform of flywheel damping frame of flywheel damping frame, the upper mounting plate lower end screw thread of flywheel damping frame
Connecting has three viscoelastic dampers, three viscoelastic dampers to be circumferentially distributed 120 °, and the lower of flywheel damping frame is put down
Platform is disk structure, is connected with viscoelastic damper lower flange and whole star platform, viscoelastic damper by intermediolateral column,
Damping material restraint layer and antivibrator outer layer sleeve composition, damping material restraint layer is interior shear layer, outer shear layer composition
Shear pattern, interior shear layer contacts with intermediolateral column, and outer shear layer contacts with antivibrator outer layer sleeve, cuts inside and outside
By shear action under the frictional force effect of section, a part of vibrational energy is converted into heat energy and is consumed, thus plays vibration damping and make
With.
The upper mounting plate of described flywheel damping frame is disk structure, circumferential edge distribution hanger, ties for threaded post in hanger
Structure, can threaded with intermediolateral column, and hanger and flywheel upper bracket are 60 °.
Described intermediolateral column is columnar structures, with upper mounting plate, the lower platform difference of flywheel damping frame of flywheel damping frame
Connect, be the skeleton of viscoelastic damper, be to provide the critical piece of antivibrator strength and stiffness.
Described intermediolateral column upper surface is embedded helicitic texture, can be with 3 hangers on the upper mounting plate of flywheel damping frame
Being connected, intermediolateral column lower surface is embedded helicitic texture, is connected with the lower platform of flywheel damping frame.
The viscoelastic material that described viscoelastic damper uses is high polymer damping material, mainly with butyl rubber, propylene
The high polymers such as acid esters rubber are matrix, and the feature of its macromolecular structure is with a lot of methyl on strand, and saturation is high,
There is the good characteristic absorbing vibrational energy, carry out butyl rubber with some filleies and reinforcing agent coordinating to reach special
Fixed performance requirement.
Described viscoelastic damper is propped up by upper mounting plate, the flywheel vibration damping of antivibrator outer sleeve connection post with flywheel damping frame
The lower platform of frame is connected, and has 6 antivibrator outer sleeves and connects post.
Also include an attemperating unit, be installed on the outside of the outer shear layer of viscous-elastic material restraint layer, for viscoelastic damper
Optimum working temperature scope is provided.
Wherein, supporting leg length (the damping frame length between upper and lower platform) and the upper mounting plate of flywheel damping frame, flywheel
The lower platform of damping frame is a height ofTimes relation, meets and is perpendicular to three directional stiffness maximums of faceplate.
Compared with prior art, the invention have the advantages that
Belong to flywheel damping frame first at home to be applied on spacecraft；Simple in construction, lightweight, ensureing the most just
In the case of degree, flywheel high frequency micro vibration part is effectively decayed；By high damping visco-elastic material is selected
Take, supporting structure parameter optimization, dissipated vibrational energy by viscoelastic damper, it is possible to achieve rapid decay flywheel rotates
The vibration produced.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation for the passive damping frame of flywheel high frequency micro vibration of the embodiment of the present invention.
Fig. 2 is the structural representation of flywheel damping frame upper mounting plate in the embodiment of the present invention.
Fig. 3 is the schematic diagram of flywheel damping frame lower platform in the embodiment of the present invention.
Fig. 4 is the schematic diagram of flywheel damping frame antivibrator in the embodiment of the present invention.
Fig. 5 is the schematic diagram of intermediolateral column in the embodiment of the present invention.
Fig. 6 is the schematic diagram of the interior shear layer of damping material restraint layer in the embodiment of the present invention.
Fig. 7 is the schematic diagram of the outer shear layer of damping material restraint layer in the embodiment of the present invention.
Fig. 8 is flywheel damping frame viscoelasticity structural representation in the embodiment of the present invention.
Fig. 9 is the schematic diagram that in the embodiment of the present invention, antivibrator outer sleeve connects post.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following example will assist in those skilled in the art
Member is further appreciated by the present invention, but limits the present invention the most in any form.It should be pointed out that, the common skill to this area
For art personnel, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement.These broadly fall into
Protection scope of the present invention.
As shown in figs 1-9, embodiments provide a kind of for the passive damping frame of flywheel high frequency micro vibration, including
The upper mounting plate 1 of flywheel damping frame and the lower platform 3 of flywheel damping frame, the upper mounting plate 1 lower end spiral shell of flywheel damping frame
Stricture of vagina connects has three viscoelastic dampers 2, three viscoelastic dampers 2 to be circumferentially distributed 120 °, flywheel damping frame
Lower platform 3 be disk structure, be connected with viscoelastic damper 2 lower flange and whole star platform, viscoelasticity damp
Device 2 is made up of intermediolateral column 4, damping material restraint layer 5 and antivibrator outer layer sleeve 6, and damping material restraint layer 5 is interior
The shear pattern that shear layer, outer shear layer are constituted, interior shear layer contacts with intermediolateral column 4, outside outer shear layer is with antivibrator
Layer sleeve 6 contacts, and by shear action under the frictional force effect of inside and outside shearing sheet, a part of vibrational energy is converted into heat
Can be consumed, thus play damping effect.
The upper mounting plate 1 of described flywheel damping frame is disk structure, and circumferential edge 3 hangers of distribution, are screw thread in hanger
Rod structure, can threaded with intermediolateral column 4, and hanger and flywheel upper bracket are 60 °.
Described intermediolateral column 4 is columnar structures, with upper mounting plate 1, the lower platform of flywheel damping frame of flywheel damping frame
3 connect respectively, are the skeletons of viscoelastic damper, are to provide the critical piece of antivibrator strength and stiffness.
Described intermediolateral column 4 upper surface is embedded helicitic texture, can be with 3 on the upper mounting plate 1 of flywheel damping frame
Hanger is connected, and intermediolateral column 4 lower surface is embedded helicitic texture, is connected with the lower platform 3 of flywheel damping frame.
The viscoelastic material that described viscoelastic damper 2 uses is high polymer damping material, mainly with butyl rubber, third
The high polymers such as olefin(e) acid ester rubber are matrix, and the feature of its macromolecular structure is with a lot of methyl on strand, and saturation is high,
There is the good characteristic absorbing vibrational energy, carry out butyl rubber with some filleies and reinforcing agent coordinating to reach special
Fixed performance requirement
Described viscoelastic damper 2 connects post 7 and the upper mounting plate 1 of flywheel damping frame, flywheel by antivibrator outer sleeve
The lower platform 3 of damping frame is connected, and has 6 antivibrator outer sleeves and connects post 7.
Also include an attemperating unit, be installed on the outside of the outer shear layer of viscous-elastic material restraint layer 5, for viscoelastic damping
Device provides optimum working temperature scope.
Originally being embodied as damping material restraint layer 5 to be made up of interior shear layer, outer shear layer, this material is first pasted on intermediolateral column
On, then need to be pasted onto outside interior shear layer outer shear layer again, and use sleeve to compress.Fig. 6,7,8 are three layers
Damping layer, constitutes damping portion, Fig. 6 overcoat map interlinking 8, Fig. 8 overcoat map interlinking 7.
When there is extraneous structural vibration, intermediolateral column is caused to bend, upper and lower flange shaft core position generation relative displacement, enter
And cause inside and outside shear layer generation relative motion, made by shearing under the frictional force effect of damping material inside and outside shearing sleeve
With.When viscous-elastic material internal generation alternate stress and strain, portion of energy stores with the form of potential energy and discharges
Going out, another part energy then changes into heat and dissipates, and shows as damping effect, thus plays damping effect.
Originally it is embodied as in flywheel and flywheel damping frame installation process, first, first flywheel is connected to support upper mounting plate
Together；Secondly, 3 viscoelastic dampers are assembled；Again, antivibrator is arranged on upper mounting plate；Thirdly,
Antivibrator is arranged on lower platform.The upper mounting plate of damping frame is installed together with flywheel, the lower platform of damping frame with
Celestial body stage+module is in one, and damping frame is angled and form, viscoelastic damper by 3 viscoelastic dampers
Also can produce shearing lag return deformation, the energy of the input that dissipates, the micro-vibration produced during reducing flywheel speed rotating operation is right
The impact of whole star platform, and then produce effective effectiveness in vibration suppression.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned spy
Determining embodiment, those skilled in the art can make various deformation or amendment within the scope of the claims, this not shadow
Ring the flesh and blood of the present invention.
Claims (7)
1. one kind is used for the passive damping frame of flywheel high frequency micro vibration, it is characterised in that include the upper of flywheel damping frame
The lower platform (3) of platform (1) and flywheel damping frame, upper mounting plate (1) lower end of flywheel damping frame is threaded to be had
Three viscoelastic dampers (2), three viscoelastic dampers (2) are circumferentially distributed 120 °, under flywheel damping frame
Platform (3) is disk structure, is connected with viscoelastic damper (2) lower flange and whole star platform, and viscoelasticity hinders
Buddhist nun's device (2) is made up of intermediolateral column (4), damping material restraint layer (5) and antivibrator outer layer sleeve (6), damps material
Material restraint layer (5) is interior shear layer, the shear pattern of outer shear layer composition, and interior shear layer contacts with intermediolateral column (4),
Outer shear layer contacts with antivibrator outer layer sleeve (6).
One the most according to claim 1 is used for the passive damping frame of flywheel high frequency micro vibration, it is characterised in that
The upper mounting plate (1) of described flywheel damping frame is disk structure, and circumferential edge 3 hangers of distribution, are screw thread in hanger
Rod structure, can threaded with intermediolateral column (4), and hanger and flywheel upper bracket are 60 °.
One the most according to claim 1 is used for the passive damping frame of flywheel high frequency micro vibration, it is characterised in that
Described intermediolateral column (4) is columnar structures, puts down with the upper mounting plate of flywheel damping frame (1), the lower of flywheel damping frame
Platform (3) connects respectively.
One the most according to claim 1 is used for the passive damping frame of flywheel high frequency micro vibration, it is characterised in that
Described intermediolateral column (4) upper surface is embedded helicitic texture, can be with 3 on the upper mounting plate (1) of flywheel damping frame
Individual hanger is connected, and intermediolateral column (4) lower surface is embedded helicitic texture, with lower platform (3) phase of flywheel damping frame
Even.
One the most according to claim 1 is used for the passive damping frame of flywheel high frequency micro vibration, it is characterised in that
The viscoelastic material that described viscoelastic damper (2) uses is high polymer damping material.
One the most according to claim 1 is used for the passive damping frame of flywheel high frequency micro vibration, it is characterised in that
Described viscoelastic damper (2) by antivibrator outer sleeve connect post (7) and the upper mounting plate (1) of flywheel damping frame,
The lower platform (3) of flywheel damping frame is connected, and has 6 antivibrator outer sleeves and connects post (7).
One the most according to claim 1 is used for the passive damping frame of flywheel high frequency micro vibration, it is characterised in that
Also include an attemperating unit, be installed on the outside of the outer shear layer of viscous-elastic material restraint layer (5), for viscoelastic damping
Device provides optimum working temperature scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510917719.6A CN105937574A (en) | 2015-12-10 | 2015-12-10 | Passive vibration reducing bracket for flywheel high-frequency micro vibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510917719.6A CN105937574A (en) | 2015-12-10 | 2015-12-10 | Passive vibration reducing bracket for flywheel high-frequency micro vibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105937574A true CN105937574A (en) | 2016-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510917719.6A Pending CN105937574A (en) | 2015-12-10 | 2015-12-10 | Passive vibration reducing bracket for flywheel high-frequency micro vibration |
Country Status (1)
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|---|---|
| CN (1) | CN105937574A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106742066A (en) * | 2016-12-29 | 2017-05-31 | 中国空间技术研究院 | A kind of legerity type Xing Shang executing agencies isolation mounting |
| CN107255131A (en) * | 2017-05-31 | 2017-10-17 | 北京空间机电研究所 | One kind is based on the improved remote sensor damping isolation device of bi pod supporting way |
| CN113247307A (en) * | 2021-04-15 | 2021-08-13 | 东南大学 | Spherical mechanical foot of lunar traveling mechanism with multidirectional vibration reduction function and vibration reduction method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3152798A (en) * | 1961-08-07 | 1964-10-13 | Ressorts Autoamortisseurs Jarr | Hydrostatic shock absorber springs |
| US5573126A (en) * | 1994-11-02 | 1996-11-12 | Amsted Industries Incorporated | Gravity wedge for a slackless railcar connector assembly |
| CN201484424U (en) * | 2009-08-10 | 2010-05-26 | 南车青岛四方机车车辆股份有限公司 | Railway car floating floor vibration absorber |
| CN201800917U (en) * | 2010-09-30 | 2011-04-20 | 湖南山河科技股份有限公司 | Anti-shimmy mechanism of landing wheel |
| CN104139873A (en) * | 2014-08-06 | 2014-11-12 | 上海新跃仪表厂 | Passive damping device for solar panel |
| CN104373503A (en) * | 2014-10-28 | 2015-02-25 | 上海卫星工程研究所 | Micro-vibration convergence type vibration isolation device used for satellite flywheel |
-
2015
- 2015-12-10 CN CN201510917719.6A patent/CN105937574A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3152798A (en) * | 1961-08-07 | 1964-10-13 | Ressorts Autoamortisseurs Jarr | Hydrostatic shock absorber springs |
| US5573126A (en) * | 1994-11-02 | 1996-11-12 | Amsted Industries Incorporated | Gravity wedge for a slackless railcar connector assembly |
| CN201484424U (en) * | 2009-08-10 | 2010-05-26 | 南车青岛四方机车车辆股份有限公司 | Railway car floating floor vibration absorber |
| CN201800917U (en) * | 2010-09-30 | 2011-04-20 | 湖南山河科技股份有限公司 | Anti-shimmy mechanism of landing wheel |
| CN104139873A (en) * | 2014-08-06 | 2014-11-12 | 上海新跃仪表厂 | Passive damping device for solar panel |
| CN104373503A (en) * | 2014-10-28 | 2015-02-25 | 上海卫星工程研究所 | Micro-vibration convergence type vibration isolation device used for satellite flywheel |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106742066A (en) * | 2016-12-29 | 2017-05-31 | 中国空间技术研究院 | A kind of legerity type Xing Shang executing agencies isolation mounting |
| CN106742066B (en) * | 2016-12-29 | 2019-05-24 | 中国空间技术研究院 | A kind of legerity type Xing Shang executing agency isolation mounting |
| CN107255131A (en) * | 2017-05-31 | 2017-10-17 | 北京空间机电研究所 | One kind is based on the improved remote sensor damping isolation device of bi pod supporting way |
| CN113247307A (en) * | 2021-04-15 | 2021-08-13 | 东南大学 | Spherical mechanical foot of lunar traveling mechanism with multidirectional vibration reduction function and vibration reduction method thereof |
| CN113247307B (en) * | 2021-04-15 | 2022-06-17 | 东南大学 | Spherical mechanical foot of lunar traveling mechanism with multidirectional vibration reduction function and vibration reduction method thereof |
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| PB01 | Publication | ||
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Application publication date: 20160914 |