DE102006004778A1 - Air bearing table construction for simulation of weightless situations e.g. satellites, comprises mechanical components for adjusting center of gravity and geometric shape retentiveness, where components are separated from each other - Google Patents

Air bearing table construction for simulation of weightless situations e.g. satellites, comprises mechanical components for adjusting center of gravity and geometric shape retentiveness, where components are separated from each other Download PDF

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Publication number
DE102006004778A1
DE102006004778A1 DE200610004778 DE102006004778A DE102006004778A1 DE 102006004778 A1 DE102006004778 A1 DE 102006004778A1 DE 200610004778 DE200610004778 DE 200610004778 DE 102006004778 A DE102006004778 A DE 102006004778A DE 102006004778 A1 DE102006004778 A1 DE 102006004778A1
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Germany
Prior art keywords
air bearing
bearing table
components
gravity
table construction
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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.)
Withdrawn
Application number
DE200610004778
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German (de)
Inventor
László Dr. Hinsenkamp
Harald Dr. Michalik
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DSI INFORMATIONSTECHNIK GmbH
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DSI INFORMATIONSTECHNIK GmbH
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Priority to DE200610004778 priority Critical patent/DE102006004778A1/en
Publication of DE102006004778A1 publication Critical patent/DE102006004778A1/en
Withdrawn legal-status Critical Current

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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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0681—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load
    • F16C32/0685—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load for radial load only
    • F16C32/0688—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load for radial load only with floating bearing elements

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)

Abstract

The air bearing table construction comprises mechanical components for the adjustment of the center of gravity and for the geometric shape retentiveness. The mechanical components are separated from each other. The specific geometry is adjusted by the adjusting units. The residual interference elements existing after precise adjustment are compared by an active compensation comprising a calibration step through the working area and by a working point related active counter moment generation.

Description

Stufe 1: Passive Kompensation mit Trennung von Strukturelementen zur Versteifung und zur Einstellung des Schwerpunktes.Level 1: Passive Compensation with separation of structural elements for stiffening and to adjust the center of gravity.

Eine Montage-Plattform dient dazu den Prüfling aufzunehmen. Die Montage-Plattform ist auf ein kugelförmiges Luftlager montiert (siehe 1). Mit Gegengewichten wird der gemeinsame Schwerpunkt in den geometrischen Mittelpunkt der Kugel eingestellt. Hierbei die Anzahl der Gegengewichte, und den geometrischen Form der Bewegung der Gegengewichte für die Erfindung irrelevant sind. Während die Kugel auf Druckluft schwebt, kann sich der Prüfling mit drei Freiheitsgraden reibungsfrei bewegen. Diese Situation simuliert die Schwerelosigkeit im All.An assembly platform serves to accommodate the test object. The mounting platform is mounted on a spherical air bearing (see 1 ). With counterweights, the common center of gravity is set in the geometric center of the sphere. Here, the number of counterweights, and the geometric shape of the movement of the counterweights for the invention are irrelevant. While the ball floats on compressed air, the specimen with three degrees of freedom can move without friction. This situation simulates weightlessness in space.

Eine Beispielrealisation ist in der 2 dargestellt. Die getrennte Realisation der Bahn der Gegengewichte, der Versteifung und der Einstellungselemente der Geometrie sind gut erkennbar.An example realization is in the 2 shown. The separate realization of the path of the counterweights, the stiffening and the setting elements of the geometry are clearly visible.

Stufe 2: Aktive ReststörmomentkompensationStage 2: Active residual torque compensation

An der Montageplattform wird ein aktives Kompensationssystem, bestehend zum Beispiel aus in der Satellitentechnik für die Lage-Aktorik üblichen Drallrädern, und einem entsprechenden Steuerelement angebracht. 3 zeigt einen Testsatelliten und zusätzliche Drallräder mit einem Steuerelement. Das Störmoment dieser Anordnung wird vor einem Testlauf in einem Kalibierschritt über den Arbeitsbereich vermessen. Während des Testlaufes erzeugt das aktive Kompensationssystem in jedem Punkt des Arbeitsbereiches das notwendige Gegenmoment zur Kompensation des statischen Reststörmoments.On the mounting platform, an active compensation system, consisting of, for example, in the satellite technology for the position-actuator usual swirl wheels, and a corresponding control attached. 3 shows a test satellite and additional spin wheels with a control. The disturbance torque of this arrangement is measured over the working area before a test run in a calibration step. During the test run, the active compensation system generates the necessary counter-torque for compensation of the residual static torque at every point in the working range.

Für Testnutzlastmassen vom > 100kg ist nur durch Stufe 1 eine Größenordnung des Reststörmomentes zu erreichen, die einen Einsatz von Stufe 2 mit sinnvollem Energieeinsatz ermöglicht.For test payloads from> 100kg is only through Level 1 is an order of magnitude the residual disturbance torque to achieve a use of level 2 with sensible energy use allows.

Claims (3)

Luftlagertisch-Konstruktion dadurch gekennzeichnet, das die mechanischen Elemente die für die Einstellung des Schwerpunktes, und die für die geometrische Formtreue dienen voneinander getrennt realisiert sind.Air bearing table construction, characterized in that the mechanical elements which are used for the adjustment of the center of gravity, and for the geometric shape of each other are realized separately. Luftlagertisch-Konstruktion nach Patentanspruch 1 dadurch gekennzeichnet, dass die präzise Geometrie durch Einstellungselemente einstellbar ist.Air bearing table construction according to claim 1 characterized in that the precise geometry through adjustment elements is adjustable. Luftlagertisch-Konstruktion nach Patentanspruch 1 und 2 dadurch gekennzeichnet, dass die nach präziser Einstellung vorhandenen Reststörmomente durch eine aktive Kompensation bestehend aus einem Kalibrationsschritt über den Arbeitsbereich und arbeitspunktbezogene aktive Gegenmomenterzeugung ausgeglichen werden.Air bearing table construction according to claim 1 and 2 characterized in that the existing after precise adjustment Reststörmomente by an active compensation consisting of a calibration step over the Work area and working-point-related active counter-momentum generation be compensated.
DE200610004778 2006-02-02 2006-02-02 Air bearing table construction for simulation of weightless situations e.g. satellites, comprises mechanical components for adjusting center of gravity and geometric shape retentiveness, where components are separated from each other Withdrawn DE102006004778A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200610004778 DE102006004778A1 (en) 2006-02-02 2006-02-02 Air bearing table construction for simulation of weightless situations e.g. satellites, comprises mechanical components for adjusting center of gravity and geometric shape retentiveness, where components are separated from each other

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610004778 DE102006004778A1 (en) 2006-02-02 2006-02-02 Air bearing table construction for simulation of weightless situations e.g. satellites, comprises mechanical components for adjusting center of gravity and geometric shape retentiveness, where components are separated from each other

Publications (1)

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DE102006004778A1 true DE102006004778A1 (en) 2007-08-16

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DE200610004778 Withdrawn DE102006004778A1 (en) 2006-02-02 2006-02-02 Air bearing table construction for simulation of weightless situations e.g. satellites, comprises mechanical components for adjusting center of gravity and geometric shape retentiveness, where components are separated from each other

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103869834A (en) * 2014-04-01 2014-06-18 哈尔滨工业大学 Intelligent adjustment method for mass center of three-axis air bearing table based on empirical mode method
CN105388781A (en) * 2015-11-24 2016-03-09 北京精密机电控制设备研究所 Four-degree-of-freedom free target microgravity air flotation simulation device
CN106066632A (en) * 2016-06-03 2016-11-02 哈尔滨工业大学 Air supporting simulator barycenter and rotary inertia independence continuous adjustment system and control method
CN106896822A (en) * 2017-03-13 2017-06-27 上海航天控制技术研究所 Spacecraft movable part disturbance torque scaling method and system
CN111422386A (en) * 2020-06-15 2020-07-17 北京前沿探索深空科技有限公司 Physical simulation test system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103869834A (en) * 2014-04-01 2014-06-18 哈尔滨工业大学 Intelligent adjustment method for mass center of three-axis air bearing table based on empirical mode method
CN103869834B (en) * 2014-04-01 2016-12-07 哈尔滨工业大学 Three-axis air-bearing table barycenter intelligent adjusting method based on empirical modal method
CN105388781A (en) * 2015-11-24 2016-03-09 北京精密机电控制设备研究所 Four-degree-of-freedom free target microgravity air flotation simulation device
CN106066632A (en) * 2016-06-03 2016-11-02 哈尔滨工业大学 Air supporting simulator barycenter and rotary inertia independence continuous adjustment system and control method
CN106896822A (en) * 2017-03-13 2017-06-27 上海航天控制技术研究所 Spacecraft movable part disturbance torque scaling method and system
CN111422386A (en) * 2020-06-15 2020-07-17 北京前沿探索深空科技有限公司 Physical simulation test system

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