WO2001001100A1 - Method and device for reducing wobbling of a rotating rotor body which is mounted in a freely suspended manner - Google Patents
Method and device for reducing wobbling of a rotating rotor body which is mounted in a freely suspended manner Download PDFInfo
- Publication number
- WO2001001100A1 WO2001001100A1 PCT/EP2000/004440 EP0004440W WO0101100A1 WO 2001001100 A1 WO2001001100 A1 WO 2001001100A1 EP 0004440 W EP0004440 W EP 0004440W WO 0101100 A1 WO0101100 A1 WO 0101100A1
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- Prior art keywords
- rotor body
- position detector
- rotation
- rotating
- mass distribution
- Prior art date
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- 238000000608 laser ablation Methods 0.000 description 6
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Classifications
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/0408—Passive magnetic bearings
- F16C32/0436—Passive magnetic bearings with a conductor on one part movable with respect to a magnetic field, e.g. a body of copper on one part and a permanent magnet on the other part
- F16C32/0438—Passive magnetic bearings with a conductor on one part movable with respect to a magnetic field, e.g. a body of copper on one part and a permanent magnet on the other part with a superconducting body, e.g. a body made of high temperature superconducting material such as YBaCuO
-
- 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
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0444—Details of devices to control the actuation of the electromagnets
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/14—Determining imbalance
- G01M1/16—Determining imbalance by oscillating or rotating the body to be tested
- G01M1/22—Determining imbalance by oscillating or rotating the body to be tested and converting vibrations due to imbalance into electric variables
- G01M1/225—Determining imbalance by oscillating or rotating the body to be tested and converting vibrations due to imbalance into electric variables for vehicle wheels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/30—Compensating imbalance
- G01M1/32—Compensating imbalance by adding material to the body to be tested, e.g. by correcting-weights
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/30—Compensating imbalance
- G01M1/34—Compensating imbalance by removing material from the body to be tested, e.g. from the tread of tyres
Definitions
- the invention relates to a method for reducing the wobble movement in a freely suspended, rotating rotor body, and an apparatus for carrying out such a method.
- a rotating, freely suspended rotor body has a spatially stable axis of rotation, which is determined by its main axis of inertia when the angular momentum of the angular momentum acting on it coincides with the main axis of inertia and no other disturbances act on it. If the rotor body is a rotationally symmetrical body, the main axis of inertia and thus the axis of rotation with its axis of symmetry coincide under the prerequisite that the symmetry is perfect and the body exhibits a completely homogeneous structure.
- Real rotor bodies correspond to this ideal case due to unavoidable material inhomogeneities, manufacturing inaccuracies and the given situation
- Skill tolerances are not. In contrast, they show more or less strong deviations, which lead to the fact that the main axis of inertia (as an axis of rotation in the case of free, floating suspension) no longer coincides with the axis of symmetry of the rotor body. If a disturbing torque acts on the overall system from the outside, this leads to an influence on the position of the angular momentum axis, which migrates from the main axis of inertia, due to the preservation of the angular momentum of the overall system. As long as no further external forces act on the rotor body, the angular momentum axis is then fixed in its orientation in space. The main axis of inertia moves on the surface of a cone, the so-called “nutation cone", around the axis of angular momentum.
- the axis of rotation is impressed on it. As a rule, this axis of rotation does not match either the main axis of inertia or the axis of symmetry.
- the rotor body then receives an "unbalance" due to the difference in position to the main axis of inertia and a “blow” due to the difference in position to the axis of symmetry. It is now possible to almost completely eliminate the unbalance by a suitable change in the mass distribution (material shift) on the rotor body. Forces that act on the rotor body as a result of an imbalance can be absorbed by the bearing, wherein the effects of an imbalance can be compensated for with sufficiently load-bearing bearings and high bearing damping.
- Measuring device is carried out by means of a laser device.
- the balancing takes place in a separate measuring device in which the rotor body is assigned a fixed bearing axis, which, however, no longer corresponds exactly to the bearing conditions later given in practical use of the balanced body.
- the object of the invention is to propose a method with which an undesired wobble movement can be effectively reduced in the case of a freely suspended, rotating rotor body.
- this is achieved by a method for reducing the wobble movement in the case of a freely suspended, rotating rotor body which is attached to its
- Values belonging to the rotary positions of the rotor body are determined and control signals are calculated therefrom, with which a correction device is actuated which, during the or a subsequent rotation of the rotor body, causes a change in the mass distribution on the rotor body without contact and without influencing the reflection surfaces in such a way that the following rotation of the Rotor body determined difference between the smallest and largest value of the signals emitted by the position detector smaller than that at the previous revolution is certain difference until the determined difference is below a predetermined minimum value.
- the measures for reducing the wobble movement are carried out directly on the freely suspended and rotating rotor body, without its axis of rotation being predetermined by a rigid bearing axis.
- the fluid bearings such as gas bearings or liquid bearings, which can preferably be used for free-floating storage, and in particular also magnetic bearings, can be dimensioned such that the bearing axis effective for the rotor body is not rigidly fixed in terms of geometry and material.
- magnetic bearings can be used, in particular, in which the axis of rotation of the rotor body can be freely set within certain limits and the mechanical guidance of the axis of rotation in a bearing axis, which is known from mechanical bearings and is determined by the bearing points, is eliminated.
- the air gap in such magnetic bearings is, similarly as in suitable fluid bearings, relatively large compared to the usual deviations from the axis of rotation and
- the method according to the invention creates a significant improvement in quality by acting in such a way that the position of the axis of rotation of the rotor body and its (positionally identical) main axis of inertia is brought into the best possible agreement with the position of the axis of symmetry, d. H. the axis of rotation is determined by the method steps of the invention in the direction of the best possible agreement with the position of the
- the axis of symmetry is "traced” towards it until an optimal run is achieved.
- the position of the main axis of inertia which does not coincide with the axis of rotation, is completely different in conventional balancing methods in which the position of the axis of rotation is unchanged by the mechanical bearing , "pulled” towards the axis of rotation until the occurring bearing forces generated by the unbalance are minimized.
- this does not result in the axis of rotation being brought into better agreement with the axis of symmetry.
- the method according to the invention leads to the great advantage that the position of the axis of rotation can be brought into good agreement with the position of the axis of symmetry, so that optimal running can be achieved. Since it is in the inventive Ultimately, the process is an iterative process, in principle the question of what can be achieved
- the runout quality can be influenced and determined by the number of iteration steps carried out.
- Rotor body takes place in a state (free floating) of the same, which is completely identical to the state that this rotor body assumes in its subsequent use.
- the method according to the invention can even be carried out with a rotating, freely floating rotor body while it is even in the arrangement in which it is to be used.
- the method according to the invention can be designed in quite different ways with regard to how strong a difference in the difference between the smallest and largest value of the signals emitted by the position detector is to be achieved in two revolutions of the rotor body.
- z. B the possibility of designing the computer in such a way that it controls the correction device in such a way that the occurring difference between the maximum and minimum values of the signals emitted by the position detector is compensated for as completely as possible, so that this difference is as small as possible at the next reference revolution is.
- the change in the mass distribution on the rotor body by the correction device can be carried out in any desired manner in terms of time, intensity and / or location.
- the change in the mass distribution on the rotor body is particularly preferably carried out within locally limited areas, specifically by local mass removal or mass application.
- the change in the mass distribution on the rotor body can be carried out in any suitable manner. However, it is particularly preferably carried out by laser radiation, electron radiation and / or ion radiation, with, again preferred, the radiation used being pulsed.
- the radiation is advantageously pulsed synchronously with the speed of the rotor body.
- the pulse time and / or the pulse length and / or the pulse frequency and / or the pulse power are set by the computer as a function of the signals supplied by the position detector.
- the computer is given a system that is particularly suitable for the application.
- the pulse regime of the radiation used is very particularly preferably triggered with the signal of the position detector, as a result of which a simple synchronization between the rotational speed of the rotor body and the pulsing of the radiation can be achieved.
- a further advantageous embodiment of the method according to the invention also consists in the fact that the orientation of the radiation used relative to the rotor body is set via the control signals of the computer, so that the correction device, from the same starting point, the radiation used at different points of impact on the rotor body or at different positions of the Can align reflective surfaces.
- the correction device is preferably deactivated if and as long as the ascertained difference between the smallest and the largest value of the signals emitted by the position detector fall below a predetermined lower limit value, ie when a predetermined axial run-out is achieved.
- the method according to the invention can basically be carried out on the rotating rotor body at any speed which is not exactly one of its resonance frequencies. However, it is particularly preferred if the rotor body rotates at its nominal speed during the measurement and the change in the mass distribution.
- the free-floating storage of the rotor body used can be carried out in any suitable manner.
- the rotor body is advantageously in a passively superconducting
- the rotor body could equally well be actively magnetically supported.
- the method according to the invention is particularly preferably carried out with a rotor body which is designed as a mirror polygon or as a polygon scanner; in principle, however, it can be carried out with any type of rotor body.
- any suitable measuring beam can be used as the measuring beam in the method according to the invention, but a laser beam is particularly preferably used as the measuring beam.
- the invention also relates to an arrangement with which the method according to the invention can be carried out in a particularly advantageous manner.
- this is an arrangement with a rotor body which can be set in rotation by a drive and has reflection surfaces on its outer circumference, furthermore with a bearing device for the freely suspended mounting of the rotor body when rotating, a light source for generating a rotating reflection surface of the rotating body Rotorkö ⁇ ers alignable measuring beam, a position detector for detecting the measuring beam reflected from the reflection surfaces, a device for continuously detecting the rotational angle positions of the rotor body, a correction device by means of which the mass distribution on the rotor body can be changed without contact, and with a computer, at the input of which the position detector and the Device for the continuous detection of the rotational angle position of the rotor body are connected and supplies the control signals to the correction device in such a way that the mass distribution on the Ro door body changed without contact.
- a preferably pulsed laser generator is preferably provided as the correction device
- YAG laser generator or is designed as an Eximer laser generator.
- a CCD array is very particularly preferably selected as the position detector.
- a laser generator is preferably also used as the device for generating the measuring beam.
- The is preferred
- Device for generating the measuring beam is arranged so that the orientation of the radiation position on the reflection surfaces is adjustable.
- a mirror polygon or a polygon scanner is advantageously used as the rotor body and a passive superconducting device as the bearing device
- Magnetic bearings or an active magnetic bearing provided.
- another suitable storage device for free-floating storage e.g. B. a fluid bearing (such as a gas bearing).
- Figure 1 is a (schematic) sectional view through an arrangement according to the invention with an actively magnet-mounted, disc-shaped mirror polygon as a rotor body.
- FIG. 2 shows a top view of the mirror polygon in FIG. 1, showing the beam path of the reflected measuring beam
- FIG. 3 shows a (basic) sectional view through an arrangement according to the invention with a passive and axially magnet-mounted mirror polygon as a rotor body;
- Figure 4 is a graphical representation of the components of the pyramidal error of a rotating mirror polygon.
- Fig. 5 shows the graphical representation corresponding to Fig. 4, but after compensation of the
- Wobble, and 6 shows the pulse sequence of a pulsed laser source of the correction device and the pulse sequence of the laser radiation for laser ablation in a method according to the invention.
- a polygon scanner is used as the rotor body 1, which is arranged in a housing 2.
- This consists of an annular central part 3 (Fig. 2), in which a plane-parallel plate 4 is arranged as a transparent window for a measuring light beam 5 to be deflected from a (in Fig. 1 only indicated in principle) light source 6, such as a laser generator (Fig. 2).
- a light source 6 such as a laser generator (Fig. 2).
- the permanently magnetic mirror polygon 7 inserted in the polygon scanner 1 is inserted into the cavity of the central part 3, after which the central part 3 is closed in a vacuum-tight manner by a base plate 8 and a cover plate 9.
- the base plate 8 and the cover plate 9 are made of glass and carry the magnet coils 10 for a magnetic bearing, the magnet coils 11 for a drive and permanent magnets 12.
- the mirror polygon 7 rests on the base plate 8 or on the cover plate 9, which prevents damage to the reflection surfaces 13 in the form of mirror surfaces attached to the circumference of the mirror polygon 7.
- the axial position of the device is first set precisely and then the electromagnetic rotating field is excited, which sets the mirror polygon 7 in rotation.
- an axis of rotation A-A is always set such that it corresponds to the main axis of inertia of the mirror polygon 7, the position of the axis of rotation A-A relative to the housing 2 always being reproducible in the same way with a stable generated magnetic field.
- the desired high-precision 90 ° orientation of the surface normals N (FIG. 2) of the mirror surfaces 13 to the main axis of inertia, which is the axis of rotation A-A, of the mirror polygon 7 is generally not sufficiently ensured, as a result of which
- the distribution of the magnetic coils 10, 11 and the permanent magnets 12 on the base plate 8 and the cover plate 9 is advantageously carried out completely symmetrically.
- the arrangement is also such that there are free areas 15 through which the end face 27 of the mirror polygon 7 for the purpose of position measurement or to influence the Mass distribution of the mirror polygon 7 can be suitably achieved for an ablation radiation.
- a free area 15 can be created which is permeable to the laser light from a correction device 16, which consists of a pulsed laser generator.
- This free area 15 is used for the passage of the laser radiation from the laser generator 16 (as a processing laser), with which laser ablation can be carried out on surface areas 23 of the mirror polygon 7 during its operating state (preferably rotation at nominal speed).
- Laser radiation causes a partial removal of material on the upper side of the mirror polygon 7, the control being carried out in such a way that the position of the main axis of inertia of the mirror polygon 7 is influenced such that the periodic deviation of the position of the perpendicular N on the mirror surfaces 13 to the main axis of inertia AA , ie the "wobble error", is minimized.
- removal rates of 1x10 ⁇ 7 mm 3 are also achieved with a pulse duration of 100 ns and a repetition rate of 10 kHz for metals and silicon.
- the method of laser ablation has the great advantage over the other conceivable and possible methods for material displacement, such as evaporation, vapor deposition, sputtering, sputtering, chemical conversion (oxidation, nitration), ion implantation etc. that there is practically no influence on the
- Material properties and material composition of the mirror polygon 7 takes place, which is essential because a thermal treatment or thin layers in the extreme Loads to which a rapidly rotating mirror polygon 7 is always exposed
- Tumbling error occurs or in a slight deviation from the same (+/- 10 °). Due to the large number of necessary laser impulses, averaging occurs anyway and the measurements carried out continuously during the material removal immediately provide proof of the process success.
- the measuring laser used as the light source 6 is fixed in its position relative to the polygon scanner 1.
- the measuring radiation 5 is reflected by each moving mirror surface 13 of the mirror polygon 7 onto a receiver line of a position detector 17 in the form of a CCD array.
- a resolution is achieved that is better than an angular second.
- a measured value is supplied for each mirror surface 13.
- a sensor 18 is also provided at a suitable point for determining the facet timing of the circumferential, reflecting facets (mirror 13), which provides information on the current rotation angle division of the
- the X axis represents the angle of rotation position ⁇ of the mirror polygon 7 and the Y axis represents the associated amplitude W of the detection signal measured by the position detector 17 (CCD array).
- the wobble error 20 represents the sinusoidal part of the total signal.
- a computer 22 is also shown in FIG. 1, into which the output signal of the position detector 17 and the sensor 18 for angle detection is input. Because of the detected
- the computer 22 first determines the difference D occurring between the largest measured value W and the smallest measured value Wmj ⁇ (see FIG. 4) during a complete revolution of the polygon mirror 7, and also the rotational positions X ⁇ and X 2 of the two measured values Rotor body 1 and uses this to determine control signals for forwarding to the correction device 16.
- the laser beam 24 directed by the latter onto the processing point 23 on the upper side 27 of the mirror polygon 7, material is removed at the processing point 23 such that during the (or a) subsequent rotation of the mirror polygon 7, the difference D then measured is smaller than the previously measured difference D.
- the computer 22 if the newly determined difference Dj is greater than a predetermined minimum value, in turn controls the correction device 16, which performs a new laser ablation before the or a further complete revolution in such a way that the subsequently measured difference between the maximum and minimum measured value becomes smaller again. These steps are repeated until this difference ultimately becomes smaller than the specified minimum value.
- FIG. 5 shows the diagram from FIG. 4, the wobble error 20 having virtually disappeared completely through a large number of steps carried out in this way (in the case of successive measurements) and material removal (mostly the process becomes when the wobble error 20 is reached at a predetermined minimum residual level canceled), in which case only the fixed angular error 19 from mirror surface 13 to mirror surface 13 is present (FIG. 5).
- 6 shows the control of the pulse train of the processing laser of the correction device 16 (in the picture above) and the laser pulse train acting on the surface 27 of the mirror polygon 7 (in the picture below) in principle.
- the procedure is such that the deflection of the measuring beam 5 in accordance with the beam path, as shown in FIG. 2, is further measured with the rotating mirror polygon 7 during the material removal and the process of
- Measuring and ablation is stopped as soon as the measured difference Di has dropped below a predetermined limit value.
- Fig. 3 shows the basic structure of a mirror polygon 7 in a passive superconducting magnetic bearing (this in a basic sectional view), which is the
- the rotor body 1 consists of layered permanent magnets 12 and a mirror polygon 7.
- a stator part 25 surrounding it consists of a superconducting material which is cooled below its critical temperature by a cooler 26.
- Magnetic coils 11 for the drive generate a magnetic field which acts on the rotating body 1 and sets it in rotation.
- Such a passive magnetic bearing has the advantage that the position of the rotor body 1 does not have to be stabilized by regulation.
- the “frozen” state of the currents induced in the superconducting material of the stator part 25 by the permanent magnets 12 guides the rotor body 1 in a stable, interference-resistant and exactly reproducible manner.
- the arrangement shown in principle in FIG. 3 also has the advantage that here on the end face 27 of the mirror polygon 7 the free area 15 practically does not have any
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Welding Or Cutting Using Electron Beams (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Testing Of Balance (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001506467A JP2003503697A (en) | 1999-06-24 | 2000-05-16 | Method and apparatus for reducing wobble during rotation of a levitated mounted rotor |
AU47575/00A AU4757500A (en) | 1999-06-24 | 2000-05-16 | Method and device for reducing wobbling of a rotating rotor body which is mounted in a freely suspended manner |
EP00929534A EP1110069A1 (en) | 1999-06-24 | 2000-05-16 | Method and device for reducing wobbling of a rotating rotor body which is mounted in a freely suspended manner |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1999128989 DE19928989C1 (en) | 1999-06-24 | 1999-06-24 | Method for reducing the wobble movement in a freely suspended, rotating rotor body and device for carrying out the method |
DE19928989.1 | 1999-06-24 |
Publications (1)
Publication Number | Publication Date |
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WO2001001100A1 true WO2001001100A1 (en) | 2001-01-04 |
Family
ID=7912402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/004440 WO2001001100A1 (en) | 1999-06-24 | 2000-05-16 | Method and device for reducing wobbling of a rotating rotor body which is mounted in a freely suspended manner |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1110069A1 (en) |
JP (1) | JP2003503697A (en) |
AU (1) | AU4757500A (en) |
DE (1) | DE19928989C1 (en) |
TW (1) | TW460686B (en) |
WO (1) | WO2001001100A1 (en) |
Cited By (4)
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WO2007006356A1 (en) | 2005-07-11 | 2007-01-18 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Method and assembly for balancing a fan |
US20100266866A1 (en) * | 2007-12-11 | 2010-10-21 | Bluescope Steel Limited | Method of metal coating and coating produced thereby |
CN114199547A (en) * | 2021-12-17 | 2022-03-18 | 大连民族大学 | Special fixture capable of realizing slow change of excitation amplitude for rotor-bearing test bed |
CN115127730A (en) * | 2022-07-13 | 2022-09-30 | 中国科学院理化技术研究所 | Rotor dynamic balance weight-removing angle position measuring instrument and measuring method |
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DE10013035A1 (en) * | 2000-03-17 | 2001-09-27 | Gerhard Wanger | Rotating shaft balancing device, uses selectively activated laser beam for removal of material from shaft during its rotation |
DE10204043C1 (en) * | 2002-02-01 | 2003-07-10 | Siemens Ag | Mechanical oscillation signal detection and evaluation device has respective signal evaluation method assigned to each detected measuring point |
DE102005024139B4 (en) * | 2005-05-23 | 2016-11-24 | Schenck Rotec Gmbh | Method for determining the imbalance reference axis and method for determining the imbalance and corresponding devices |
DE102008034343B4 (en) | 2008-07-23 | 2017-03-16 | Continental Mechanical Components Germany Gmbh | Turbocharger with sealed and cooled bearings |
DE102008034342A1 (en) | 2008-07-23 | 2010-01-28 | Continental Mechanical Components Germany Gmbh | Method for operating weight of turbo charger, involves determining tumbling motion of rotor body, and changing mass distribution of rotor body such that tumbling motion of rotor body is reduced |
JP2011112514A (en) * | 2009-11-26 | 2011-06-09 | Ihi Corp | Balance correction apparatus and method |
JP5773126B2 (en) * | 2011-01-24 | 2015-09-02 | 株式会社Ihi | Balance correction device and balance correction method |
DE102022107598A1 (en) | 2022-03-30 | 2023-10-05 | Raylase Gmbh | 1Balanced mirror unit for a laser deflection device and corresponding balancing method |
DE102023108218A1 (en) | 2023-03-30 | 2024-10-02 | Raylase Gmbh | Balanced mirror unit for a laser deflection device and corresponding balancing procedure |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3621180A (en) * | 1969-06-03 | 1971-11-16 | Singer General Precision | System for correcting unbalances on a rotating mass |
EP0459585A1 (en) * | 1990-06-01 | 1991-12-04 | Koninklijke Philips Electronics N.V. | Scanning device comprising a rotatable mirror and drive unit for use in the scanning device. |
DE4227014A1 (en) * | 1992-08-14 | 1994-02-17 | Budig Peter Klaus Prof Dr Sc T | Balancing electromagnetically-supported rotor - using measured values obtained from control loop selected by rotary-angle pulses adjustable to 360 degrees, balancing manually and by using angle-dependent current regulating values |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1052844B (en) * | 1975-12-16 | 1981-07-20 | Cnen | PROCEDURE AND EQUIPMENT FOR THE DYNAMIC BALANCING OF ROTATING BODIES IN PARTICULAR FOR CENTRIFUGES |
US4773019A (en) * | 1986-04-24 | 1988-09-20 | Mechanical Technology Incorporated | Microprocessor laser control system for multiplane balancing of rotors |
DD299546A5 (en) * | 1987-04-07 | 1992-04-23 | Bundesamt Fuer Wehrtechnik Und Beschaffung Referat Atiii 1,De | ARRANGEMENT FOR MEASURING THE IMMIGRATION OF INDIVIDUAL SCREW BLADES |
DE4032299A1 (en) * | 1990-10-11 | 1992-04-16 | Siemens Ag | Monitoring rotatable component esp. rotor shaft - time-dependently measuring oscillatory path of component in radial direction and rotary position |
DE4339064A1 (en) * | 1993-11-16 | 1995-05-18 | Bosch Gmbh Robert | Eliminating rotor imbalance |
DE19619997A1 (en) * | 1996-05-17 | 1997-11-20 | Karlsruhe Forschzent | Balancing method for superconducting magnet located rotor mass |
-
1999
- 1999-06-24 DE DE1999128989 patent/DE19928989C1/en not_active Expired - Fee Related
-
2000
- 2000-05-06 TW TW089108688A patent/TW460686B/en not_active IP Right Cessation
- 2000-05-16 AU AU47575/00A patent/AU4757500A/en not_active Abandoned
- 2000-05-16 EP EP00929534A patent/EP1110069A1/en not_active Withdrawn
- 2000-05-16 WO PCT/EP2000/004440 patent/WO2001001100A1/en not_active Application Discontinuation
- 2000-05-16 JP JP2001506467A patent/JP2003503697A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3621180A (en) * | 1969-06-03 | 1971-11-16 | Singer General Precision | System for correcting unbalances on a rotating mass |
EP0459585A1 (en) * | 1990-06-01 | 1991-12-04 | Koninklijke Philips Electronics N.V. | Scanning device comprising a rotatable mirror and drive unit for use in the scanning device. |
DE4227014A1 (en) * | 1992-08-14 | 1994-02-17 | Budig Peter Klaus Prof Dr Sc T | Balancing electromagnetically-supported rotor - using measured values obtained from control loop selected by rotary-angle pulses adjustable to 360 degrees, balancing manually and by using angle-dependent current regulating values |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007006356A1 (en) | 2005-07-11 | 2007-01-18 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Method and assembly for balancing a fan |
US20100266866A1 (en) * | 2007-12-11 | 2010-10-21 | Bluescope Steel Limited | Method of metal coating and coating produced thereby |
US10323313B2 (en) * | 2007-12-11 | 2019-06-18 | Bluescope Steel Limited | Method of metal coating and coating produced thereby |
CN114199547A (en) * | 2021-12-17 | 2022-03-18 | 大连民族大学 | Special fixture capable of realizing slow change of excitation amplitude for rotor-bearing test bed |
CN114199547B (en) * | 2021-12-17 | 2024-05-28 | 大连民族大学 | Special fixture capable of realizing slow variation of excitation amplitude for rotor-bearing test bed |
CN115127730A (en) * | 2022-07-13 | 2022-09-30 | 中国科学院理化技术研究所 | Rotor dynamic balance weight-removing angle position measuring instrument and measuring method |
Also Published As
Publication number | Publication date |
---|---|
EP1110069A1 (en) | 2001-06-27 |
JP2003503697A (en) | 2003-01-28 |
AU4757500A (en) | 2001-01-31 |
TW460686B (en) | 2001-10-21 |
DE19928989C1 (en) | 2001-01-18 |
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