CN103486176A - Micro-vibration integrated dynamic vibration absorber for satellite flywheel - Google Patents
Micro-vibration integrated dynamic vibration absorber for satellite flywheel Download PDFInfo
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- CN103486176A CN103486176A CN201310350026.4A CN201310350026A CN103486176A CN 103486176 A CN103486176 A CN 103486176A CN 201310350026 A CN201310350026 A CN 201310350026A CN 103486176 A CN103486176 A CN 103486176A
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Abstract
The invention provides a micro-vibration integrated dynamic vibration absorber for a satellite flywheel, which comprises an installation unit, an elastic unit and a quality unit. The installation unit, the elastic unit and the quality unit are sequentially arranged from bottom to top; the installation unit, the elastic unit and the quality unit are integrally formed; the elastic unit is a multi-slot hollow metal cylinder and comprises a first group of sector slots, a second group of sector slots, a third group of sector slots and a four group of sector slots; the first group of sector slots, the second group of sector slots, the third group of sector slots and the four group of sector slots are sequentially arranged along the axis direction of the hollow metal cylinder; and the circle centers of each group of sector slots are positioned on the axis of the hollow metal cylinder. According to the invention, micro-vibration response caused in the process of in-orbit operation of rotating parts such as the flywheel and the like can be reduced; stability, reliability and safety of an on-satellite high-accuracy sensitive load in the in-orbit operation process are ensured; and the micro-vibration integrated dynamic vibration absorber has the advantages of light weight, small size, simple structure, convenience for assembling, low manufacturing cost, strong applicability and the like and has higher universality.
Description
Technical field
The present invention relates to a kind of bump leveller, particularly, relate to micro-vibration integrated dynamic bump leveller for a kind of satellite flywheel.
Background technique
Along with China's satellite, towards highi degree of accuracy, high stability, long lifetime future development, the responsive load of its lift-launch requires more and more harsher to the micro-vibration environment of platform.Micro-vibration refers to the stage in orbit, sweep mechanism motion in rotatable parts high speed rotating, useful load on star, becomes rail posture adjustment stage propulsion device igniting etc. and causes satellite to produce the vibratory response that a kind of amplitude is less, frequency is higher.Research finds, the flywheel vibration is the principal element that affect the Satellite Payloads performance index, the factor generations such as the flywheel vibration is flexible mainly due to its rotor quality skewness, structure, electric machine controller error and bearing noise.Flywheel vibration control method commonly used has that damping shock absorption, structure are just changed, vibration isolation etc.Damping shock absorption is successful when resonance only; Structure has just been changed can increase the satellite quality; But the frequency band that shakes of passive vibration isolation is narrow, and the active vibration isolation relative complex, reliability is not high.
For above-mentioned defect, if can provide a kind of satellite flywheel can effectively address the above problem with bump leveller.Through the literature search of prior art, find, also not for micro-vibration dynamic vibration absorber for satellite flywheel, the design constraints of this kind of dynamic vibration absorber mainly comprises three aspects at present: the one, reduce the vibratory response of satellite flywheel mounting plate in orbit the time; The 2nd, the light-weight design of implementation structure and the optimal design of envelope size, save whole star resource; The 3rd, the integrated design of implementation structure, increase stability, reliability and the Security of arrangement works performance.For this reason, provide that a kind of quality is light, size is little, easy to manufacture, cost is lower, the dynamic vibration absorber of excellent performance, become problem demanding prompt solution in the industry.
Summary of the invention
For defect of the prior art, the purpose of this invention is to provide micro-vibration integrated dynamic bump leveller for a kind of satellite flywheel.The present invention has the characteristics such as shock attenuation result is good, quality is light, size is little, easy to manufacture, cost is low, to solve satellite large technical problem of flywheel vibratory response in orbit the time.
According to an aspect of the present invention, micro-vibration integrated dynamic bump leveller for a kind of satellite flywheel is provided, comprise: installation unit, Flexible element and mass unit, installation unit, Flexible element and mass unit arrange successively from the bottom to top, and installation unit, Flexible element and mass unit are one-body molded makes.
Preferably, Flexible element is that undercut profile is mixed in screw type, multiple groove or space.
Preferably, Flexible element is multiple groove hollow metal cylinder.
Preferably, multiple groove hollow metal cylinder comprises first group of fan groove, second group of fan groove, the 3rd group of fan groove and the 4th group of fan groove, first group of fan groove, second group of fan groove, the 3rd group of fan groove and the 4th group of fan groove are arranged along the axial direction of hollow metal cylinder successively, and the center of circle of every group of fan groove is on the axis of hollow metal cylinder.
Preferably, first group of fan groove and second group of fan groove are symmetrical arranged.
Preferably, the 3rd group of fan groove and the 4th group of fan groove are symmetrical arranged.
Preferably, the symmetry plane of first group of fan groove and second group of fan groove is mutually vertical with the symmetry plane of the 4th group of fan groove with the 3rd group of fan groove.
Preferably, be provided with some mounting interfaces on installation unit.
Preferably, mass unit is cuboid.
Preferably, satellite flywheel adopts aluminum alloy material 2A14T6 to make with micro-vibration integrated dynamic bump leveller.
Bump leveller of the present invention is a kind of by the device of the micro-vibratory response of energy transfer diminishes system, in the time of near the bump leveller natural frequency is tuned to excitation force frequency, excitation force causes bump leveller resonance, the vibrational energy of flywheel is transferred to bump leveller, thereby reaches the purpose that reduces the micro-vibratory response of flywheel.
Compared with prior art, the present invention has following beneficial effect:
Dynamic vibration absorber of the present invention adopts numerical optimization and structure optimization theory to design, and is guaranteeing and promoting under the prerequisite of design performance to have realized the integrated and lightweight of dynamic vibration absorber.Compared with prior art, the present invention has following beneficial effect:
At first, micro-vibration integrated dynamic bump leveller adopts integrated design for satellite flywheel of the present invention, and absorbing efficiency is more than 90%, has the absorbing excellent performance, advantages such as quality is light, size is little, simple in structure, low cost of manufacture.
Secondly, the present invention adopts the integrated design theory, and integrated dynamic bump leveller self is without assembling, simple with coordinating of flywheel mounting plate, and required installing space is little.
Finally, micro-vibration integrated dynamic bump leveller for satellite flywheel of the present invention, as long as the size of Flexible element and mass unit is carried out to adaptability revision, just can meet the asynchronous absorbing demand of Speed of Reaction Wheels, has higher versatility, has a extensive future.
Through evidences such as mode, vibrations, satellite flywheel of the present invention with micro-vibration integrated dynamic bump leveller reached the absorbing excellent performance, quality is light, size is little, the purpose of simple in structure, low cost of manufacture, as long as each size is carried out to adaptability revision, just can realize the absorbing purpose under the flywheel different rotating speeds, thereby improve the adaptability of this integrated dynamic bump leveller.
The accompanying drawing explanation
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 is the structural representation of satellite flywheel of the present invention with micro-vibration integrated dynamic bump leveller;
Fig. 2 is the front view of satellite flywheel of the present invention with micro-vibration integrated dynamic bump leveller;
Fig. 3 is the left view of satellite flywheel of the present invention with micro-vibration integrated dynamic bump leveller;
Fig. 4 is the scheme of installation of satellite flywheel of the present invention with micro-vibration integrated dynamic bump leveller and flywheel.
In figure: 1 is mass unit, and 2 is Flexible element, and 3 is first group of fan groove, and 4 is second group of fan groove, and 5 is the 3rd group of fan groove, and 6 is installation unit, and 7 is the 4th group of fan groove, and 8 is the flywheel mounting plate, and 9 is flywheel-bracket, and 10 is flywheel.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art further to understand the present invention, but not limit in any form the present invention.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement.These all belong to protection scope of the present invention.
Refer to Fig. 1, micro-vibration integrated dynamic bump leveller for a kind of satellite flywheel, comprise: installation unit, Flexible element and mass unit, installation unit, Flexible element and mass unit arrange successively from the bottom to top, and installation unit, Flexible element and mass unit are one-body molded makes.Installation unit, Flexible element, mass unit adopt integrated processing technique, and material can be regulated according to actual conditions.
Further, Flexible element is that undercut profile is mixed in screw type, multiple groove or space.Particularly, Flexible element is multiple groove hollow metal cylinder.
Further, multiple groove hollow metal cylinder comprises first group of fan groove, second group of fan groove, the 3rd group of fan groove and the 4th group of fan groove, first group of fan groove, second group of fan groove, the 3rd group of fan groove and the 4th group of fan groove are arranged along the axial direction of hollow metal cylinder successively, and the center of circle of every group of fan groove is on the axis of hollow metal cylinder.
Further, first group of fan groove and second group of fan groove are symmetrical arranged, and the 3rd group of fan groove and the 4th group of fan groove are symmetrical arranged, and the symmetry plane of first group of fan groove and second group of fan groove is mutually vertical with the symmetry plane of the 4th group of fan groove with the 3rd group of fan groove.
Further, be provided with some mounting interfaces on installation unit, mass unit is cuboid.
Particularly, satellite flywheel of the present invention adopts aluminum alloy material 2A14T6 to make with micro-vibration integrated dynamic bump leveller.
Particularly, as shown in Figure 1 to Figure 3, the satellite flywheel of the present embodiment comprises with micro-vibration integrated dynamic bump leveller: installation unit 6, Flexible element 2, mass unit 1, installation unit 6 is as the mounting base of dynamic vibration absorber, installation unit 6 is connected with Flexible element 2, Flexible element 2 is connected with mass unit 1, installation unit 6, Flexible element 2, mass unit 1 is one-body molded makes, adopt integrated processing technique, with integrated the processing of monoblock aluminum alloy material 2A14T6, Flexible element 2 is multi-groove structure hollow metal cylinder.
The mass unit 1 of 3-D solid structure is cuboid, and its envelope is of a size of (5～100) mm * (5～100) mm * (5～50) mm.
As shown in Figure 4, when the present invention and flywheel are installed, installation unit 6, by mounting hole and flywheel mounting plate 8 on it, is realized the installation of satellite flywheel of the present invention with micro-vibration integrated dynamic bump leveller.
The present invention is used for reducing satellite and causes micro-vibratory response when flywheel rotates in orbit the time, and the specific works principle is as follows:
Bump leveller of the present invention is a kind of by the device of the micro-vibratory response of energy transfer diminishes system, in the time of near the bump leveller natural frequency is tuned to excitation force frequency, excitation force causes bump leveller resonance, the vibrational energy of flywheel is transferred to bump leveller, thereby reaches the purpose that reduces the micro-vibratory response of flywheel.
Micro-vibratory response that dynamic vibration absorber of the present invention causes in orbit the time for reducing rotatable parts such as flywheels, guarantee on star stability, reliability and Security when the responsive load of highi degree of accuracy in orbit, have that quality is light, size is little, the advantage such as simple in structure, easy to assembly, low cost of manufacture, applicability are strong, there is higher versatility.
Above specific embodiments of the invention are described.It will be appreciated that, the present invention is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (10)
1. a micro-vibration integrated dynamic bump leveller for satellite flywheel, it is characterized in that, comprise: installation unit, Flexible element and mass unit, described installation unit, Flexible element and mass unit arrange successively from the bottom to top, and described installation unit, Flexible element and mass unit are one-body molded makes.
2. micro-vibration integrated dynamic bump leveller for satellite flywheel according to claim 1, is characterized in that, described Flexible element is that undercut profile is mixed in screw type, multiple groove or space.
3. micro-vibration integrated dynamic bump leveller for satellite flywheel according to claim 2, is characterized in that, described Flexible element is multiple groove hollow metal cylinder.
4. micro-vibration integrated dynamic bump leveller for satellite flywheel according to claim 3, it is characterized in that, described multiple groove hollow metal cylinder comprises first group of fan groove, second group of fan groove, the 3rd group of fan groove and the 4th group of fan groove, described first group of fan groove, second group of fan groove, the 3rd group of fan groove and the 4th group of fan groove are arranged along the axial direction of described hollow metal cylinder successively, and the center of circle of every group of fan groove is on the axis of hollow metal cylinder.
5. micro-vibration integrated dynamic bump leveller for satellite flywheel according to claim 4, is characterized in that, described first group of fan groove and second group of fan groove are symmetrical arranged.
6. micro-vibration integrated dynamic bump leveller for satellite flywheel according to claim 5, is characterized in that, described the 3rd group of fan groove and the 4th group of fan groove are symmetrical arranged.
7. micro-vibration integrated dynamic bump leveller for satellite flywheel according to claim 6, is characterized in that, the symmetry plane of described first group of fan groove and second group of fan groove is mutually vertical with the symmetry plane of the 4th group of fan groove with described the 3rd group of fan groove.
8. micro-vibration integrated dynamic bump leveller for satellite flywheel according to claim 1, is characterized in that, is provided with some mounting interfaces on described installation unit.
9. micro-vibration integrated dynamic bump leveller for satellite flywheel according to claim 1, is characterized in that, described mass unit is cuboid.
10. micro-vibration integrated dynamic bump leveller for satellite flywheel according to claim 1, is characterized in that, described satellite flywheel adopts aluminum alloy material 2A14T6 to make with micro-vibration integrated dynamic bump leveller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310350026.4A CN103486176A (en) | 2013-08-12 | 2013-08-12 | Micro-vibration integrated dynamic vibration absorber for satellite flywheel |
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| CN201310350026.4A CN103486176A (en) | 2013-08-12 | 2013-08-12 | Micro-vibration integrated dynamic vibration absorber for satellite flywheel |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712759A (en) * | 2014-01-06 | 2014-04-09 | 北京卫星环境工程研究所 | Spacecraft whole-satellite micro-vibration mechanics environment ground test method |
| CN104276294A (en) * | 2014-09-16 | 2015-01-14 | 上海卫星工程研究所 | Compression releasing device of satellite micro-vibration vibration isolation system |
| 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 |
| CN105035362A (en) * | 2015-07-31 | 2015-11-11 | 上海卫星工程研究所 | Vibration isolation device of satellite control moment gyro |
| CN105840711A (en) * | 2016-05-27 | 2016-08-10 | 哈尔滨工程大学 | Metal vibration isolator for supporting underwater sound insulation baffle |
| CN108278309A (en) * | 2018-01-19 | 2018-07-13 | 北京控制工程研究所 | A kind of four-footed convergence type vibration isolator of active-passive integratedization |
| CN108547912A (en) * | 2018-04-04 | 2018-09-18 | 上海交通大学 | Flywheel power shock-absorbing means and method of construction |
| CN115324223A (en) * | 2022-08-19 | 2022-11-11 | 深圳供电局有限公司 | Vibration isolation device |
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| US20120104219A1 (en) * | 2010-03-01 | 2012-05-03 | Lockheed Martin Corpration | System and method for shock isolation in a launch system |
| CN102465994A (en) * | 2010-11-15 | 2012-05-23 | 上海骆氏减震件有限公司 | Dynamic vibration absorber and automobile steering wheel comprising same |
| KR20120065616A (en) * | 2010-12-13 | 2012-06-21 | 현대중공업 주식회사 | Cover a combined stiffness increasing device for dynamic vibration absorber |
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| CN201306407Y (en) * | 2008-09-24 | 2009-09-09 | 上海众力汽车部件有限公司 | Dynamic vibration absorber |
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| CN102465994A (en) * | 2010-11-15 | 2012-05-23 | 上海骆氏减震件有限公司 | Dynamic vibration absorber and automobile steering wheel comprising same |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712759B (en) * | 2014-01-06 | 2017-05-10 | 北京卫星环境工程研究所 | Spacecraft whole-satellite micro-vibration mechanics environment ground test method |
| CN103712759A (en) * | 2014-01-06 | 2014-04-09 | 北京卫星环境工程研究所 | Spacecraft whole-satellite micro-vibration mechanics environment ground test method |
| CN104276294A (en) * | 2014-09-16 | 2015-01-14 | 上海卫星工程研究所 | Compression releasing device of satellite micro-vibration vibration isolation system |
| CN104276294B (en) * | 2014-09-16 | 2016-05-11 | 上海卫星工程研究所 | The micro-vibration vibrating isolation system of satellite compresses releasing device |
| 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 |
| CN104373503B (en) * | 2014-10-28 | 2016-03-16 | 上海卫星工程研究所 | The micro-vibration convergence type isolation mounting of satellite flywheel |
| CN105035362A (en) * | 2015-07-31 | 2015-11-11 | 上海卫星工程研究所 | Vibration isolation device of satellite control moment gyro |
| CN105840711A (en) * | 2016-05-27 | 2016-08-10 | 哈尔滨工程大学 | Metal vibration isolator for supporting underwater sound insulation baffle |
| CN108278309A (en) * | 2018-01-19 | 2018-07-13 | 北京控制工程研究所 | A kind of four-footed convergence type vibration isolator of active-passive integratedization |
| CN108278309B (en) * | 2018-01-19 | 2019-09-06 | 北京控制工程研究所 | A kind of four-footed convergence type vibration isolator of active-passive integratedization |
| CN108547912A (en) * | 2018-04-04 | 2018-09-18 | 上海交通大学 | Flywheel power shock-absorbing means and method of construction |
| CN115324223A (en) * | 2022-08-19 | 2022-11-11 | 深圳供电局有限公司 | Vibration isolation device |
| CN115324223B (en) * | 2022-08-19 | 2023-05-02 | 深圳供电局有限公司 | Vibration isolation device |
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Application publication date: 20140101 |
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