WO2003104678A1 - Appareil de controle des vibrations - Google Patents

Appareil de controle des vibrations Download PDF

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Publication number
WO2003104678A1
WO2003104678A1 PCT/CA2002/000846 CA0200846W WO03104678A1 WO 2003104678 A1 WO2003104678 A1 WO 2003104678A1 CA 0200846 W CA0200846 W CA 0200846W WO 03104678 A1 WO03104678 A1 WO 03104678A1
Authority
WO
WIPO (PCT)
Prior art keywords
flotor
stator
fence
control apparatus
vibration
Prior art date
Application number
PCT/CA2002/000846
Other languages
English (en)
Inventor
Bjarni V. Tryggvason
Original Assignee
Canadian Space Agency
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Canadian Space Agency filed Critical Canadian Space Agency
Priority to PCT/CA2002/000846 priority Critical patent/WO2003104678A1/fr
Priority to AU2002311128A priority patent/AU2002311128A1/en
Priority to CA002486504A priority patent/CA2486504A1/fr
Publication of WO2003104678A1 publication Critical patent/WO2003104678A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N15/00—Holding or levitation devices using magnetic attraction or repulsion, 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
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • 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
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/03—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means
    • 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
    • F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
    • F16F7/1005—Vibration-dampers; Shock-absorbers using inertia effect characterised by active control of the mass
    • G—PHYSICS
    • G12—INSTRUMENT DETAILS
    • G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G12B5/00—Adjusting position or attitude, e.g. level, of instruments or other apparatus, or of parts thereof; Compensating for the effects of tilting or acceleration, e.g. for optical apparatus

Definitions

  • This invention relates to a vibration control apparatus, and in particular to a
  • attitude sometimes referred to as attitude
  • control systems thermal control systems, air conditioning systems, power
  • vibration levels in the frequency band 0.01 Hz to 100 Hz are in the
  • RMS Root Mean Square
  • MIM Isolation Mount
  • the MIM was operational for more than 3000 hours on the Mir space station
  • the MIM includes two major components, namely a stator which is fixed to
  • Positions sensing devices track the position and orientation of the flotor with respect
  • stator to the stator, and accelerometers monitor stator and flotor accelerations.
  • the object of the present invention is to meet the need defined above by
  • the apparatus of the present invention is inherently more efficient at damping
  • the invention provides a vibration control apparatus comprising:
  • stator means for mounting on a fixed surface
  • stator means for determining said stator means, lower flotor means and upper flotor means for determining said stator means, lower flotor means and upper flotor means for
  • Figure 1 is an isometric view of the apparatus of the present invention
  • Figure 2 is an exploded, isometric view of the apparatus of Fig. 1 ;
  • Figure 3 is an isometric view of a stator used in the apparatus of Figs. 1 and
  • Figure 4 is an isometric view from above and the rear of a lower flotor used in
  • Figure 5 is an isometric view from below and the front of the lower flotor of
  • Figure 6 is a schematic cross-section of one side of the apparatus of Fig. 1 ;
  • Figure 7 is a partly sectioned, isometric view of the lower flotor of Figs. 4 and
  • Figure 8 is a cross section taken generally along line 8-8 of Fig. 7;
  • Figure 9 is a schematic, isometric view of the lower flotor of Figs. 4, 5 and 7 showing accelerometers used in the flotor;
  • FIGS 10 and 11 are isometric views of an upper flotor used in the
  • Figure 12 is a schematic cross section of the apparatus of Fig. 1 ;
  • Figure 13 is a schematic, isometric view of coils and magnets used in the
  • the basic elements of the apparatus include a
  • bottom assembly or stator indicated generally at 1 a first, lower flotor indicated
  • stator 1 and the flotors 2 are formed of aluminum. As shown in Fig. 1 , the stator 1 and the flotors 2 are formed of aluminum. As shown in Fig. 1 , the stator 1 and the flotors 2 are formed of aluminum. As shown in Fig. 1 , the stator 1 and the flotors 2 are formed of aluminum. As shown in Fig. 1 , the stator 1 and the flotors 2 are formed of aluminum. As shown in Fig. 1 , the stator 1 and the flotors 2 are formed of aluminum.
  • stator 1 includes a housing 5 defined by a
  • top wall 6 on contiguous front wall 7, side walls 8 and a rear wall 10, and a
  • the housing 5 carries a
  • Connectors 14 and 16 are variety of elements including electronic control components. Connectors 14 and
  • a square fence 17 extends upwardly from the top wall 6 of the housing 5.
  • wall 20 contain coils 26 and 27 (Fig. 3), which interact with opposed sets of vertical
  • notches 34 are provided at the corners of the fence 17 for accommodating
  • accelerometers 35 (Fig. 7) mounted in the lower flotor 2.
  • the lower flotor 2 includes three parallel fences
  • stator fence 17 The side walls 40 and the rear wall 41 of the outer fence 37 are
  • umbilical cords (not shown) extending between the flotors 2 and 3, and the stator 1.
  • the umbilical cords carry electrical power and data and control signals between the
  • a plurality of rectangular openings are provided in the side walls 40 and end
  • the outer fence 37 receives a voltage reference module 50 (Fig. 5).
  • a voltage reference module 50 (Fig. 5).
  • magnets 29 to 32 in combination with the coils 26 and 27 define Lorentz force actuators for magnetically levitating the lower flotor 2 with respect to the stator 1
  • stator fence 1 which is fixed to a space platform.
  • the eight actuator coils in the stator fence 1 are fixed to a space platform.
  • the two magnet and coil combinations in each fence are at 90° to each other, i.e.
  • one magnet and coil combination generates a vertical force, and the other combination generates a horizontal force vector.
  • Differential actuator forces can be
  • a set of holes 57 near the corners of the fence 37 receive signal conditioning
  • modules 58 condition data signals from the accelerometers 35 to the control system
  • Suitable accelerometers 35 are sold by Honeywell Inc., Minneapolis,
  • stator housing 5 act as references for the accelerometers 35 and to three
  • accelerometers 64 ( Fig. 11) on the upper flotor 3.
  • the accelerometers 35 detect translation and rotation of
  • the flotor 2 about the X,Y and Z axis or vertically, longitudinally and transversely with
  • stator 1 as indicated by arrows X, Y and Z.
  • accelerometers 64 detect translation and rotation of the flotor 3 about the X, Y and Z
  • the accelerometers determine acceleration
  • PSDs position sensing detectors 22 mounted in the centers of the side
  • stator fence 17 receive light from
  • LEDs collimated light emitting diodes
  • 66 mounted in square, central holes 67 (one shown - Fig. 8) in the side walls and the rear end wall of the intermediate fence 38 of
  • the PSDs 22 are duo-lateral diodes manufactured by VDT
  • magnets 75 (Figs. 4 to 6).
  • the magnets 74 and 75 are aligned with coils 77 and 78
  • the magnets 74 and 30, and the coils 77 also define vertical Lorentz force actuators for
  • the upper flotor 3 includes a top plate 83 which
  • the cover plate 89 carries the three accelerometers 64.
  • LEDs 90 (Figs. 11 and 12) are mounted in square central openings 91 (Figs.
  • the work platform defined by the top plate 83 and the cover plate 89 of
  • stator 1 horizontal and vertical movement of stator 1 , and any roll, pitch or yaw. Moreover,
  • the coil and magnet combinations can be used to induce controlled vibration of the
  • the controlled vibration is isolated from the vehicle, i.e. there is no vibration of the vehicle as a result of vibration of the experiment

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

L'invention concerne un appareil de contrôle des vibrations, spécifiquement conçu pour être utilisé sur un véhicule spatial, comprenant un stator (1) pour le montage dans le véhicule, un flotteur inférieur (2), en sustentation magnétique sur le stator, un flotteur supérieur (3) encastré et en sustentation magnétique sur le flotteur inférieur, ainsi que des détecteurs de position, d'orientation et de déplacement (22, 35), portés par le stator et les flotteurs. Lorsque des variations de position, d'orientation ou de déplacement, autrement dit des vibrations dans l'appareil, sont détectées, des actionneurs de force magnétique sont excités pour compenser de telles variations, afin de maintenir une plate-forme de travail, virtuellement exempte de vibrations, sur le flotteur supérieur. De plus, des vibrations contrôlées et induites de la plate-forme de travail, et un essai mené à cette fin, peuvent être effectués au moyen du flotteur inférieur en tant que masse de réaction, c'est-à-dire sans rétroaction sur le véhicule.
PCT/CA2002/000846 2002-06-10 2002-06-10 Appareil de controle des vibrations WO2003104678A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/CA2002/000846 WO2003104678A1 (fr) 2002-06-10 2002-06-10 Appareil de controle des vibrations
AU2002311128A AU2002311128A1 (en) 2002-06-10 2002-06-10 Vibration control apparatus
CA002486504A CA2486504A1 (fr) 2002-06-10 2002-06-10 Appareil de controle des vibrations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CA2002/000846 WO2003104678A1 (fr) 2002-06-10 2002-06-10 Appareil de controle des vibrations

Publications (1)

Publication Number Publication Date
WO2003104678A1 true WO2003104678A1 (fr) 2003-12-18

Family

ID=29721227

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2002/000846 WO2003104678A1 (fr) 2002-06-10 2002-06-10 Appareil de controle des vibrations

Country Status (3)

Country Link
AU (1) AU2002311128A1 (fr)
CA (1) CA2486504A1 (fr)
WO (1) WO2003104678A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2143409A1 (fr) * 2008-07-10 2010-01-13 Leao Wang Mécanisme de vibration électromagnétique
DE102015104696B3 (de) * 2015-03-27 2016-09-01 Sartorius Lab Instruments Gmbh & Co. Kg Elektrodynamische Levitationseinrichtung

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2788457A (en) 1953-02-11 1957-04-09 Hughes Aircraft Co Network for damping vibrations of mechanical structures
US3088062A (en) 1956-02-10 1963-04-30 Albert A Hudimac Electromechanical vibratory force suppressor and indicator
US4088042A (en) 1976-09-07 1978-05-09 The Boeing Company Vibration isolation system
US4314623A (en) 1979-02-02 1982-02-09 Kokka Kogyo Kabushiki Kaisha Vibration isolator
US4432441A (en) 1981-04-13 1984-02-21 Kokka Kogyo Kabushiki Kaisha Vibration isolation apparatus
US4585282A (en) 1983-07-19 1986-04-29 Bosley Robert W Magnetic levitation system
US4595166A (en) 1985-03-19 1986-06-17 San-Ai Kogyo Kabushiki Kaisha Vibration isolating table device
US4710656A (en) 1986-12-03 1987-12-01 Studer Philip A Spring neutralized magnetic vibration isolator
US4724923A (en) 1986-06-24 1988-02-16 Fokker B.V. Vibration absorber with controllable resonance frequency
US4874998A (en) 1987-06-11 1989-10-17 International Business Machines Corporation Magnetically levitated fine motion robot wrist with programmable compliance
JPH03213745A (ja) * 1990-01-18 1991-09-19 Showa Electric Wire & Cable Co Ltd 精密除振台
US5294854A (en) * 1990-12-20 1994-03-15 Massachusetts Institute Of Tech. Bearing for use in high resolution precision control device
EP0701314A2 (fr) * 1994-09-06 1996-03-13 Bridgestone Corporation Appareil d'isolation de vibrations et table isolée des vibrations
US5638303A (en) * 1995-06-28 1997-06-10 Mcdonnell Douglas Corporation Non-contacting isolated stabilized microgravity platform system
JPH11160471A (ja) * 1997-11-25 1999-06-18 Ebara Corp 磁気浮上ステージ
US5982128A (en) * 1994-04-01 1999-11-09 Nikon Corporation Lithography apparatus with movable stage and mechanical isolation of stage drive
JP2002081498A (ja) * 2000-06-30 2002-03-22 Japan Science & Technology Corp 除振方法およびその装置
WO2002044757A2 (fr) * 2000-11-28 2002-06-06 Business Arts Inc. Gradiometrie de pesanteur

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2788457A (en) 1953-02-11 1957-04-09 Hughes Aircraft Co Network for damping vibrations of mechanical structures
US3088062A (en) 1956-02-10 1963-04-30 Albert A Hudimac Electromechanical vibratory force suppressor and indicator
US4088042A (en) 1976-09-07 1978-05-09 The Boeing Company Vibration isolation system
US4314623A (en) 1979-02-02 1982-02-09 Kokka Kogyo Kabushiki Kaisha Vibration isolator
US4432441A (en) 1981-04-13 1984-02-21 Kokka Kogyo Kabushiki Kaisha Vibration isolation apparatus
US4585282A (en) 1983-07-19 1986-04-29 Bosley Robert W Magnetic levitation system
US4595166A (en) 1985-03-19 1986-06-17 San-Ai Kogyo Kabushiki Kaisha Vibration isolating table device
US4724923A (en) 1986-06-24 1988-02-16 Fokker B.V. Vibration absorber with controllable resonance frequency
US4710656A (en) 1986-12-03 1987-12-01 Studer Philip A Spring neutralized magnetic vibration isolator
US4874998A (en) 1987-06-11 1989-10-17 International Business Machines Corporation Magnetically levitated fine motion robot wrist with programmable compliance
JPH03213745A (ja) * 1990-01-18 1991-09-19 Showa Electric Wire & Cable Co Ltd 精密除振台
US5294854A (en) * 1990-12-20 1994-03-15 Massachusetts Institute Of Tech. Bearing for use in high resolution precision control device
US5982128A (en) * 1994-04-01 1999-11-09 Nikon Corporation Lithography apparatus with movable stage and mechanical isolation of stage drive
EP0701314A2 (fr) * 1994-09-06 1996-03-13 Bridgestone Corporation Appareil d'isolation de vibrations et table isolée des vibrations
US5638303A (en) * 1995-06-28 1997-06-10 Mcdonnell Douglas Corporation Non-contacting isolated stabilized microgravity platform system
JPH11160471A (ja) * 1997-11-25 1999-06-18 Ebara Corp 磁気浮上ステージ
JP2002081498A (ja) * 2000-06-30 2002-03-22 Japan Science & Technology Corp 除振方法およびその装置
WO2002044757A2 (fr) * 2000-11-28 2002-06-06 Business Arts Inc. Gradiometrie de pesanteur

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 015, no. 493 (M - 1191) 13 December 1991 (1991-12-13) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 11 30 September 1999 (1999-09-30) *
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 07 3 July 2002 (2002-07-03) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2143409A1 (fr) * 2008-07-10 2010-01-13 Leao Wang Mécanisme de vibration électromagnétique
DE102015104696B3 (de) * 2015-03-27 2016-09-01 Sartorius Lab Instruments Gmbh & Co. Kg Elektrodynamische Levitationseinrichtung

Also Published As

Publication number Publication date
CA2486504A1 (fr) 2003-12-18
AU2002311128A1 (en) 2003-12-22

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