LT6089B - Device for satellite orientation in the space - Google Patents
Device for satellite orientation in the space Download PDFInfo
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- LT6089B LT6089B LT2013002A LT2013002A LT6089B LT 6089 B LT6089 B LT 6089B LT 2013002 A LT2013002 A LT 2013002A LT 2013002 A LT2013002 A LT 2013002A LT 6089 B LT6089 B LT 6089B
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- sphere
- piezo
- ceramic
- piezoceramic
- satellite
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- 239000000919 ceramic Substances 0.000 claims description 34
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000005284 excitation Effects 0.000 description 12
- 238000010276 construction Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
Description
Įrenginys priklauso mechatroninių sistemų technikos ir technologijų sritims, skirtas naudoti palydovų (tarp jų ir mažųjų) erdviniam aukšto tikslumo orientavimui pagal visas tris sukimosi ašis. Šiuo metu tiksliausias palydovų orientavimo būdas erdvėje - inercinis palydovų orientavimas. Inercinis palydovų orientavimas yra pagrįstas sukimo momento suteikiamo kūnui atoveiksmiu kitam kūnui. Šiuo atveju palydove yra sumontuojama reakcijos masė, kuri gali būti įsukama variklio pritvirtinto prie palydovo. Variklio pagalba įsukant masę (atsiradus pereinamam procesui kampiniam pagreičiui), įsukamos masės atoveiksmis per variklio veleną veikia palydovą, tai pat jį įsukdamas inercijos momentu sukurtu besisukančios masės tačiau priešinga kryptimi. Siūlomasis įrenginys gali būti naudojamas palydovų kampiniam pozicionavimui pagal tris ašis naudojant pjezokeramines pavaras ir reakcijos masę.The device belongs to the field of engineering and technology of mechatronic systems for use in the high precision positioning of satellites (including small ones) along all three rotational axes. Currently, the most accurate way to orientate satellites in space is inertial satellite orientation. The inertial orientation of satellites is based on the response of the torque given to the body to the other body. In this case, the satellite is equipped with a reaction mass, which can be screwed into a motor attached to the satellite. With the help of the engine for screwing in the mass (in the case of transient angular acceleration), the feedback of the screw through the shaft of the motor acts on the satellite while also turning it in the opposite direction of the rotating mass created by inertia. The proposed device can be used to position satellites in three axes using piezoceramic actuators and reaction mass.
Pastaruoju metu taikomas palydavo orientavimas erdvėje panaudojant reakcijos ratus (Inamori T. et al.Attitude stabilization for the nano remote sensing satellite PRISM. Journal of Aerospace Engineering, 2011, p. 187 - 191.), kurie užtikrina aukštą orientavimo tikslumą, tačiau reikalauja didelio kiekio (bent trijų reakcijos ratų) sudėtingos ir ne visada patikimos įrangos arba kaip 2007 m. Šveicarijos elektronikos ir mikrotechnologijų centre (CSEM) sukurtas ir užpatentuotas įrenginys priimtas prototipu (Torąuerapparatus (VV020071 13666 (A2) - 2007 - 10 11)), įrengime veikia reakcijos sfera, kurioje integruoti tam tikra tvarka išdėstyti nuolatiniai magnetai bei sukimosi davikliai, tuo tarpu sferos laikiklyje (taip pat sferos formos) sumontuotas didelis kiekis elektros magnetų.Recently, spatial orientation of satellites using reaction wheels (Inamori T. et al. Attitude stabilization for the nano remote sensing satellite PRISM. Journal of Aerospace Engineering, 2011, pp. 187-191), which provides high orientation accuracy but requires high accuracy quantity (at least three reaction wheels) of complex and not always reliable equipment; The device, developed and patented by the Swiss Center for Electronics and Microtechnology (CSEM), is adopted by a prototype (Toruuerapparatus (VV020071 13666 (A2) - 2007 - 10 11 2007)) and operates in a reaction sphere integrating permanent magnets and rotation sensors a large amount of electrical magnets are mounted in the holder (also in the shape of a sphere).
Sukonstruotoji reakcijos sfera yra labai sudėtinga (dėl to brangi), sunki, darbui reikalauja daug energijos (kurią sunku pagaminti bei išsaugoti palydovuose), dėl šios priežasties gali tik ribotai būti naudojama didžiuosiuose palydovuose.The construction of the reaction sphere is very complex (which is expensive), heavy, requires a lot of power for the job (which is difficult to produce and store in satellites), and can therefore only be used in a limited way on major satellites.
Šio išradimo tikslas - palydovų orientavimo mechanizmo su reakcijos sfera konstrukcijos supaprastinimas, suteikiant orientavimo mechanizmui paprastesnę gamybą (mažesnę kainą), orientavimo įrenginio funkcinių galimybių išplėtimas.The object of the present invention is to simplify the construction of the satellite guidance mechanism with a response sphere, by providing the guidance mechanism with a simpler production (lower cost), and extending the functional capabilities of the guidance device.
Siūlomasis išradimas pagrįstas linijinio judesio generavimu bei jo transformavimu į kampinį pjezokeramines pavaros pagalba, ir galimybe turint tam tikrą kūno formą, išgauti kūno kampinį judesį pagal visas tris ašis. Palydovų orientavimo įrenginyje naudojama tam tikros masės sfera, kuri yra prispausta prie pjezokeramines pavaros. Generuojant tam tikro dažnio ir formos svyravimus pjezokeraminėje pavaroje, įmanoma tam tikros masės sferą (reakcijos masę) sukti aplink bet kurią ašį. Dėl besisukančios sferos inercijos momento, kontroliuojant sukimąsi galima užtikrinti patikimą palydovo orientavimą erdvėje.The present invention is based on the generation of linear motion and its transformation into angular piezo-ceramic actuators, and the ability to obtain angular motion of the body along all three axes with a particular body shape. The satellite guidance device uses a certain mass sphere that is pressed against the piezo-ceramic actuator. By generating oscillations of a certain frequency and shape in a piezo-ceramic actuator, it is possible to rotate a certain mass sphere (reaction mass) around any axis. Due to the moment of inertia of the rotating sphere, the control of rotation can provide reliable satellite orientation in space.
Palydovų orientavimo įrenginys susidedantis iš tam tikros masės sferos, ir sukimosi judesiui generuoti pjezokeraminės pavaros, kuri susideda iš ne mažiau 2-jų pjezokeraminiu hemisferų, gaubiančių tam tikros masės sferą ir tampraus elemento tarp vienos iš pjezokeraminiu hemisferų ir korpuso, arba vietoje pjezokeraminiu hemisferų įrenginys gali turėti pjezokeraminį cilindrą, prie kurio tam tikros masės sfera su nuolatiniu magnetu, pritvirtintu prie korpuso, prispausta prie tarpinių elementų, kurie pritvirtinti prie pjezokeraminio cilindro.A satellite orientation device consisting of a certain mass sphere and a piezo-ceramic actuator consisting of at least 2 piezo-ceramic hemispheres enclosing a given mass and a resilient element between one of the piezo-ceramic hemispheres and the body, or in place of a piezo-ceramic hemisphere having a piezo-ceramic cylinder to which a sphere of a certain mass with a permanent magnet attached to the housing is pressed against the spacers which are attached to the piezo-ceramic cylinder.
Pjezokeraminės pavaros konstrukcija yra daug paprastesnė už prototipo, siūlomąjį išradimą galima naudoti dideliuose ir labai mažuose palydovuose, tai padidiną jo funkciškumą.The construction of the piezo-ceramic actuator is much simpler than the prototype, and the present invention can be used on large and very small satellites, which enhances its functionality.
Fig. 1 - sferos - pjezokeramikos montavimo variantas su hemisferine pjezokeramine pavara;FIG. 1 - spherical - piezo - ceramic mounting variant with hemispherical piezo - ceramic gear;
Fig. 2 - hemisferinės pjezokeraminės pavaros elektrodų (žadinimo zonų) išdėstymo variantas;FIG. 2 - a variant of the hemispheric piezo-ceramic actuator electrodes (excitation zones);
Fig. 3 - hemisferinės pjezokeraminės pavaros valdymo schema;FIG. 3 is a control diagram of a hemispheric piezo-ceramic actuator;
Fig. 4 - sferos - pjezokeramikos montavimo variantas su cilindro formos pjezokeramine pavara;FIG. 4 - spherical - piezo - ceramic mounting variant with cylindrical piezo - ceramic gear;
įrenginį sudaro: 1 -tam tikros masės sfera; 2, 3 - hemisferine pjezokeramine pavara; 4 - tamprus elementas; 5, 6, 7 - hemisferinės pjezokeraminės pavaros žadinimo elektrodai (zonos); 8 ,9, 10 - hemisferinės pjezokeraminės pavaros matavimo elektrodai (zonos); 11 - virpesių generatorius; 12 - signalų valdymo įrenginys; 13 - signalų filtravimo įrenginys; 14 - antrasis signalų valdymo įrenginys; 15 - tarpinis elementas; 16 - cilindro formos pjezokeramine pavara; 17 - nuolatinis magnetas.the device consists of: 1 - a sphere of a given mass; 2, 3 - Hemispheric piezoceramic actuator; 4 - elastic element; 5, 6, 7 - excitation electrodes (zones) for the hemispheric piezo-ceramic actuator; 8, 9, 10 - Electrodes (zones) for measuring hemispheric piezo-ceramic actuator; 11 - vibration generator; 12 - signal control unit; 13 - signal filtering device; 14 is a second signal control unit; 15 is an intermediate member; 16 - Cylindrical piezoceramic actuator; 17 - Permanent magnet.
Tam tikros masės sferos (reakcijos masės) sukimąsi galima pasiekti naudojant pjezokeraminę hemisferą 2 (Fig. 1). Tam tikros masės sfera 1 suspaudžiama naudojant tamprų elementą 4 ir pjezokeraminę hemisferą 3. Elektrodai (žadinimo zonos) 5, 6, 7 (Fig. 3) prijungti prie elektrinių signalų šaltinio, kuriuo valdomi sferos posūkiai. Kontakto su judama grandimi taškuose generuojami trimačiai virpesiai, kurių parametrus (t.y. trimatę trajektoriją) galima valdyti keičiant sužadinimo dažnj,judesio kryptis valdoma keičiant žadinimo elektrodus.Rotation of a given mass sphere (reaction mass) can be achieved using piezo-ceramic hemisphere 2 (Fig. 1). The sphere 1 of a given mass is compressed using an elastic member 4 and a piezo-ceramic hemisphere 3. The electrodes (excitation zones) 5, 6, 7 (Fig. 3) are connected to a source of electrical signals controlling the turns of the sphere. At the points of contact with the moving circuit, three-dimensional vibrations are generated whose parameters (i.e., three-dimensional trajectory) can be controlled by changing the excitation frequency, and the direction of motion is controlled by changing the excitation electrodes.
Palydovo orientavimo erdvėje įrenginio veikimas. Iš palydovo valdymo sistemos signalas e užduodą orientavimo kryptį, pagal tai signalų valdymo įrenginys 12 užduoda elektrodams 5, 6, 7 žadinimo signalus, kuriomis reguliuojamas reakcijos sferos sukimasis apie atitinkamą ašį x, y ar z. Žadinant 5 elektrodą tam tikros masės sfera suksis apie x ašį, o 6 ir 7 sferos sukimasis bus apie x ašį priešinga kryptimi. Žadinat 6 elektrodąsukimasis bus apie x' ašį ir t.t. Tam tikros masės sferos sukimasis apie bet kokią ašį, praeinančią per jos centrą vyks, kai skirtingos amplitudės žadinimo signalai yra prijungiami prie 2-jų ar 3-jų elektrodų, o jų pagrindiniai parametrai priklausys nuo sukimosi ašies padėties palydovo atžvilgiu. Tam tikros masės sferos sukimasis apie z ašį gaunamas kai 5 elektrodas veikiamas Ucoswt, 6 Ucos(wt + 120°), o 7 - Ucos(wt + 240°) žadinimo signalais. Žadinami virpesiai veikia tam tikros masės sferą 1, kuri pradiniu judesio momentu matavimo elektroduose8, 9, 10 sukuria įtampas U|, U2 ir U3, kurios susideda iš žadinimo signalo ir sukurtų dedamųjų. Nufiltravus matavimo zonose gautas įtampas pradiniais žadinimo signalais gaunami pradiniu posūkio metu sukurti signalų šuoliai, iš kurių sužinoma apie realų reakcijos sferos posūkio ašies kryptį. Taip gaunamas grįžtamojo ryšio valdymo signalas kuris apdorojamas antrojo valdymo bloko ir perduodamas į pirmąjį, kuriame keičiami žadinimo signalų parametrai gauti reikiamo posūkio ašies krypčiai.Operation of satellite orientation device. From the satellite control system, the signal e is given the direction of orientation, according to which the signal control device 12 issues to the electrodes 5, 6, 7 excitation signals controlling the rotation of the reaction sphere about the respective axis x, y or z. When the electrode 5 is excited, a sphere of a certain mass will rotate about the x axis, and the spin of spheres 6 and 7 will be about the x axis. The electron spin on excitation 6 will be about the x 'axis, etc. Rotation of a certain mass sphere about its axis passing through its center will take place when excitation signals of different amplitudes are connected to the 2 or 3 electrodes and their basic parameters will depend on the rotation. axis position relative to satellite. The rotation of a certain mass sphere about the z-axis is obtained when 5 electrodes are exposed to Ucoswt, 6 Ucos (wt + 120 °), and 7 to Ucos (wt + 240 °) excitation signals. The excited oscillations act on a sphere of a certain mass, which, at the initial moment of motion, generates voltages U 1, U 2 and U 3 at the measuring electrodes 8, 9, 10, which consist of the excitation signal and the generated components. By filtering out the voltages in the measurement zones, the initial excitation signals produce signal spikes generated during the initial turn, which provide information about the real direction of the reaction axis's turning axis. This produces a feedback control signal, which is processed by the second control unit and transmitted to the first, which changes the parameters of the excitation signals to obtain the direction of the required turning axis.
Arba palydovų orientavimo sistema gali būti realizuota taikant tam tikros masės sferą 1, kuri kontaktuoja su pjezokeramine cilindro formos pavara16 (Fig. 4). Tarpinis elementas 15 tarp sferos ir pjezokeramikos 16 užtikrina stabilų tam tikros masės sferos sukimąsi. Pjezokeraminis cilindras prijungtas prie virpesių generatoriaus, kuriuo valdomi sferos posūkiai. Kontakte veikiančią pastovią jėgą gali užtikrinti nuolatinis magnetas 17, tarp kurio ir sferos yra nedidelis tarpelis.Alternatively, the satellite guidance system may be implemented using a sphere 1 of a certain mass which contacts the piezoceramic cylindrical actuator16 (Fig. 4). The spacer 15 between the sphere and the piezo-ceramic 16 provides a stable rotation of the sphere of a given mass. The piezo-ceramic cylinder is connected to a vibration oscillator for controlling sphere turns. The permanent force acting on the contact can be provided by a permanent magnet 17, with a small gap between the spheres.
Lyginant su prototipu iškeltus tikslus leidžia pasiekti palydovų orientavimo įrenginys, susidedantis iš tam tikros masės sferos, ir sukimosi judesiui generuoti pjezokeraminės pavaros, kuri susideda iš ne mažiau 2-jų pjezokeraminių hemisferų,gaubiančių tam tikros masės sferą ir tampraus elemento tarp vienos iš pjezokeraminių hemisferų ir korpuso, arba vietoje pjezokeraminių hemisferų įrenginys gali turėti pjezkeraminį cilindrą, prie kurio tam tikros masės sfera su nuolatiniu magnetu, pritvirtintu prie korpuso, prispausta prie tarpinių elementų, kurie pritvirtinti prie pjezokeraminio cilindro.Compared to the prototype targets, a satellite orientation device consisting of a certain mass sphere and a piezo-ceramic actuator consisting of at least 2 piezo-ceramic hemispheres enclosing a certain mass sphere and an elastic member between one of the piezo-ceramic hemispheres achieve In the case of a housing, or in place of a piezo-ceramic hemisphere, the device may comprise a piezo-ceramic cylinder, to which a sphere of a certain mass with a permanent magnet attached to the housing is pressed against the spacers mounted on the piezo-ceramic cylinder.
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| Application Number | Priority Date | Filing Date | Title |
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| LT2013002A LT6089B (en) | 2013-01-02 | 2013-01-02 | Device for satellite orientation in the space |
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| LT2013002A LT6089B (en) | 2013-01-02 | 2013-01-02 | Device for satellite orientation in the space |
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| LT2013002A LT2013002A (en) | 2014-07-25 |
| LT6089B true LT6089B (en) | 2014-10-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017025778A1 (en) | 2015-08-12 | 2017-02-16 | Uab "Pazangus Pozicionavimo Sprendimai" | Satellites attitude control system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007003666A1 (en) | 2005-07-01 | 2007-01-11 | Montserrat Gasol Gimeno | Disposable cosmetic glove |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007003666A1 (en) | 2005-07-01 | 2007-01-11 | Montserrat Gasol Gimeno | Disposable cosmetic glove |
Non-Patent Citations (1)
| Title |
|---|
| INAMORI T. ET AL: "Attitude stabilization for the nano remote sensing satellite PRISM", JOURNAL OF AEROSPACE ENGINEERING,, 2011, pages 187 - 191 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017025778A1 (en) | 2015-08-12 | 2017-02-16 | Uab "Pazangus Pozicionavimo Sprendimai" | Satellites attitude control system |
| CN107949522A (en) * | 2015-08-12 | 2018-04-20 | 快速定位解决方案有限责任公司 | Satellite attitude control system |
| US11077961B2 (en) | 2015-08-12 | 2021-08-03 | Uab “Pazangus Pozicionavimo Sprendimai” | Satellites attitude control system |
| CN107949522B (en) * | 2015-08-12 | 2021-08-31 | 快速定位解决方案有限责任公司 | Satellite Attitude Control System |
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| Publication number | Publication date |
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| LT2013002A (en) | 2014-07-25 |
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| BB1A | Patent application published |
Effective date: 20140725 |
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| FG9A | Patent granted |
Effective date: 20141027 |
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| MM9A | Lapsed patents |
Effective date: 20180102 |