FR2359327A1 - Procede et dispositif pour franchir les vitesses critiques des rotors tres allonges - Google Patents
Procede et dispositif pour franchir les vitesses critiques des rotors tres allongesInfo
- Publication number
- FR2359327A1 FR2359327A1 FR7722295A FR7722295A FR2359327A1 FR 2359327 A1 FR2359327 A1 FR 2359327A1 FR 7722295 A FR7722295 A FR 7722295A FR 7722295 A FR7722295 A FR 7722295A FR 2359327 A1 FR2359327 A1 FR 2359327A1
- Authority
- FR
- France
- Prior art keywords
- critical speeds
- rotors
- overcoming
- rotor
- critical
- Prior art date
- 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.)
- Granted
Links
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
- F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
- F16C27/04—Ball or roller bearings, e.g. with resilient rolling bodies
-
- 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
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
-
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/50—Other types of ball or roller bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Forwarding And Storing Of Filamentary Material (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Wire Processing (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
a. Procédé et dispositif pour franchir les vitesses critiques des rotors très allongés; b. Procédé caractérisé en ce qu'en vertu du mouvement radial du rotor, des ressorts, des amortisseurs et/ou des masses sont accouplés ou désaccouplés, individuellement ou en combinaison, du fait de la modification de la ligne de flexion du rotor, en tant qu'auxiliaires de franchissement, lorsque le rotor approche des vitesses critiques, de sorte qu'une modification des fréquences des nombres de tours critiques et/ou de leurs amplitudes soit provoquée; c. L'invention concerne notamment les rotors de turbines à plusieurs étages.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2632586A DE2632586C2 (de) | 1976-07-20 | 1976-07-20 | Verfahren und Vorrichtung zum Durchlaufen kritischer Drehzahlen langgestreckter Rotoren |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2359327A1 true FR2359327A1 (fr) | 1978-02-17 |
FR2359327B1 FR2359327B1 (fr) | 1983-03-18 |
Family
ID=5983470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7722295A Granted FR2359327A1 (fr) | 1976-07-20 | 1977-07-20 | Procede et dispositif pour franchir les vitesses critiques des rotors tres allonges |
Country Status (10)
Country | Link |
---|---|
US (1) | US4236426A (fr) |
JP (1) | JPS5313004A (fr) |
AU (1) | AU512498B2 (fr) |
CA (1) | CA1087874A (fr) |
DE (1) | DE2632586C2 (fr) |
FR (1) | FR2359327A1 (fr) |
GB (1) | GB1580141A (fr) |
IT (1) | IT1080569B (fr) |
NL (1) | NL7707142A (fr) |
SE (1) | SE432978B (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2463331A1 (fr) * | 1979-08-13 | 1981-02-20 | Zhivotov Jury | Procede d'equilibrage de corps de revolution et dispositif pour sa mise en oeuvre |
WO1983003985A1 (fr) * | 1982-05-19 | 1983-11-24 | Beckman Instruments, Inc. | Palier stabilisateur pour centrifugeuse |
US5026341A (en) * | 1987-05-22 | 1991-06-25 | Robert Giebeler | Low speed disengageable damper |
EP0695888A1 (fr) * | 1994-08-03 | 1996-02-07 | Pierre Patin | Procédé et dispositif pour éviter les vibrations d'un arbre de grande longueur |
FR2908736A1 (fr) * | 2006-11-16 | 2008-05-23 | Eurocopter France | Systeme de transmission mecanique a amortisseur magnetique pour giravion |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4640770A (en) * | 1985-04-03 | 1987-02-03 | United Coal Company | Apparatus for extracting water from solid fines or the like |
US4639320A (en) * | 1985-04-05 | 1987-01-27 | United Coal Company | Method for extracting water from solid fines or the like |
US4846773A (en) * | 1985-05-13 | 1989-07-11 | Beckman Instruments, Inc. | Rotating system critical speed whirl damper |
DE3610772C1 (de) * | 1986-03-29 | 1987-06-04 | Philips Patentverwaltung | Kleines Haushaltsgeraet,das mittels eines Einphasensynchronmotors angetrieben ist |
JPH0540686Y2 (fr) * | 1987-02-26 | 1993-10-15 | ||
US4825983A (en) * | 1987-03-14 | 1989-05-02 | Motoyasu Nakanishi | Inertia damper |
US4937758A (en) * | 1987-09-04 | 1990-06-26 | Technology Integration And Development Group, Inc. | Method and apparatus for reducing vibration over the full operating range of a rotor and a host device |
DE69011391T2 (de) * | 1989-05-08 | 1995-01-26 | Nippon Ferrofluidics Kk | Magnetische Lagervorrichtung. |
DE4002201A1 (de) * | 1990-01-23 | 1991-07-25 | Siemens Ag | Elektrische maschine mit einem rotor |
US5521448A (en) * | 1994-08-01 | 1996-05-28 | Mechanical Technology Incorporated | Damping for passive magnetic bearings |
DE19502664A1 (de) * | 1995-01-20 | 1996-07-25 | Siemens Ag | Verfahren zum Betrieb einer rotierenden elektrischen Synchronmaschine |
AU714988B2 (en) * | 1996-04-30 | 2000-01-13 | Dade Behring Inc. | Apparatus and method for stabilizing a centrifuge rotor |
US5921150A (en) * | 1997-01-28 | 1999-07-13 | Sorvall Products, L.P. | Imbalance tolerant drive system for a rotating apparatus |
US6183408B1 (en) * | 1999-05-03 | 2001-02-06 | Beckman Coulter, Inc. | Rotor shaft assembly having non-linear stiffness |
US6354988B1 (en) * | 1999-06-17 | 2002-03-12 | Kendro Laboratory Products, Llp | Centrifuge gyro diaphragm capable of maintaining motor shaft concentricity |
FR2817234B1 (fr) * | 2000-11-30 | 2003-02-28 | Eurocopter France | Systeme de transmission d'un aeronef, en particulier d'un helicoptere |
FR2825680B1 (fr) * | 2001-06-07 | 2003-09-26 | Sagem | Actionneur de commande de vol primaire a moteur a vibration |
US6747378B2 (en) * | 2001-08-20 | 2004-06-08 | Beacon Power Corporation | Dual stiffness bearing damping system |
US7679245B2 (en) * | 2001-09-17 | 2010-03-16 | Beacon Power Corporation | Repulsive lift systems, flywheel energy storage systems utilizing such systems and methods related thereto |
ATE306738T1 (de) * | 2002-02-18 | 2005-10-15 | Ebm Papst St Georgen Gmbh & Co | Elektronisch kommutierter innenläufermotor |
US7109619B2 (en) * | 2004-03-12 | 2006-09-19 | Bell Helicopter Textron Inc. | Damper support assembly for a supercritical drive shaft |
US7464800B2 (en) * | 2004-03-16 | 2008-12-16 | George Nerubenko | Torisonal vibration damper of a rotating shaft |
US20070238597A1 (en) * | 2006-03-29 | 2007-10-11 | Michler James R | Interfolder with mass damper |
EP2063998B1 (fr) * | 2006-09-11 | 2017-04-19 | GEA Mechanical Equipment GmbH | Centrifugeuse à rotor à axe de rotation horizontal |
DE102007026882A1 (de) * | 2007-06-11 | 2008-12-24 | Westfalia Separator Gmbh | Zentrifuge mit federnd abgestützter Trommel |
GB2451093B (en) * | 2007-07-17 | 2009-12-02 | Royal Shakespeare Company | Oscillation damper |
EP2852962A1 (fr) * | 2012-05-22 | 2015-04-01 | Koninklijke Philips N.V. | Équilibrage dans un tube à rayons x |
DE112015000602B4 (de) | 2014-01-30 | 2020-06-25 | Technische Universität Bergakademie Freiberg | Körper mit einseitiger fester Einspannung bei verschiebe- und kippsteifer Lagerung für bis in den überkritischen Drehzahlbereich drehende Teile eines dynamischen Systems und Verfahren zur Herstellung der Körper |
US11391156B2 (en) * | 2020-01-23 | 2022-07-19 | Textron Innovations Inc. | Static rotor blade assembly balancing |
DK181245B1 (en) * | 2020-10-27 | 2023-05-31 | Component 2 0 As | Support arrangement for rotating shaft |
CN112611564B (zh) * | 2020-12-17 | 2022-11-15 | 大唐东北电力试验研究院有限公司 | 一种汽轮机支撑轴承刚度判别方法及装置 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE263512C (fr) * | ||||
DE371197C (de) * | 1919-12-29 | 1923-03-12 | Expl Des Procedes Maurice Lebl | Verfahren zum Einschraenken der Wellendeformation eines Laeufers |
FR1064742A (fr) * | 1951-09-26 | 1954-05-17 | Houdaille Hershey Corp | Perfectionnements relatifs aux amortisseurs de vibrations |
US3110481A (en) * | 1958-09-26 | 1963-11-12 | Westinghouse Electric Corp | Magnetic shaft damper |
FR1535965A (fr) * | 1966-09-13 | 1968-08-09 | Reactor Centrum Nederland | Amortisseur de vibrations |
FR1577754A (fr) * | 1967-08-25 | 1969-08-08 | ||
FR2196689A5 (fr) * | 1972-08-16 | 1974-03-15 | Dornier System Gmbh |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA650441A (en) * | 1962-10-16 | W. Larsen Hugh | Shaft vibration dampening | |
US2079226A (en) * | 1930-12-19 | 1937-05-04 | Sarazin Kaoul Reland Raymond | Means adapted to reduce the torsional oscillations of crankshafts |
CH160247A (de) * | 1931-12-10 | 1933-02-28 | Sulzer Ag | Rotationsmaschine. |
DE705437C (de) * | 1938-10-15 | 1941-04-28 | Peter Kapitza | Daempfungsvorrichtung fuer mit oberhalb der kritischen Drehzahl umlaufende Wellen von Turbinben, insbesondere Expansionsturbinen fuer Tiefkuehlanlagen, Turboverdichtern oder sonstigen schnell laufenden Maschinen |
US2590579A (en) * | 1948-09-17 | 1952-03-25 | Sarazin Gilles Francois | Torsional vibration damper |
DE1049787B (de) * | 1957-02-20 | 1959-01-29 | Aachen Dr.-Ing. Konrad Beyerle | Dämpflager für die Wellen einer Gaszentrifuge |
US2936197A (en) * | 1957-11-25 | 1960-05-10 | Fairchild Engine & Airplane | Fluid bearing structure |
NL114093C (fr) * | 1957-12-27 | 1900-01-01 | ||
DE1143150B (de) * | 1957-12-28 | 1963-01-31 | Degussa | Vorrichtung zur Stabilisierung der Rotor-bewegung schnell umlaufender Zentrifugen |
US3112653A (en) * | 1958-11-28 | 1963-12-03 | Chain Belt Co | Amplitude control of constant speed vibratory equipment |
CH373967A (de) * | 1959-06-30 | 1963-12-15 | Fischer Ag Georg | Verfahren und Vorrichtung zum Stabilisieren von Anhänger-Fahrzeugen mit Radlängslenkern und Luftfederung |
US2978885A (en) * | 1960-01-18 | 1961-04-11 | Orenda Engines Ltd | Rotary output assemblies |
NL276156A (fr) * | 1961-04-25 | |||
NL139584C (fr) * | 1966-05-31 | |||
US3464657A (en) * | 1967-08-30 | 1969-09-02 | Us Army | Vibration damped platform |
DE1933031C3 (de) * | 1969-06-30 | 1978-10-26 | Karl 5170 Juelich Boden | Magnetische Lagerung |
US3614181A (en) * | 1970-07-02 | 1971-10-19 | Us Air Force | Magnetic bearing for combined radial and thrust loads |
CH528010A (de) * | 1971-02-19 | 1972-09-15 | Bbc Brown Boveri & Cie | Verfahren zum Beeinflussen des Schwingungsverhaltens |
US3971510A (en) * | 1971-03-19 | 1976-07-27 | Theodore Frederick Morse | Centrifugal separator |
DE2122602A1 (de) * | 1971-05-07 | 1972-11-16 | Maschinenfabrik Augsburg-Nürnberg AG, 8000 München | Dämpfungsvorrichtung für einen inhomogenen Rotor einer Zentrifuge |
US3804210A (en) * | 1972-06-29 | 1974-04-16 | A Erickson | Cancellating device for suppressing oscillations of structures in fluid flow |
JPS5527751Y2 (fr) * | 1974-06-29 | 1980-07-02 | ||
JPS51130801A (en) * | 1975-05-12 | 1976-11-13 | Hitachi Ltd | Gap winding system rotary elctric machine |
US4044861A (en) * | 1976-10-20 | 1977-08-30 | General Motors Corporation | Support device for rotating bar including an assembly for cushioning and dampening vibratory movement of the bar |
-
1976
- 1976-07-20 DE DE2632586A patent/DE2632586C2/de not_active Expired
-
1977
- 1977-06-27 SE SE7707385A patent/SE432978B/xx not_active IP Right Cessation
- 1977-06-28 NL NL7707142A patent/NL7707142A/xx not_active Application Discontinuation
- 1977-06-30 IT IT25255/77A patent/IT1080569B/it active
- 1977-07-14 GB GB29588/77A patent/GB1580141A/en not_active Expired
- 1977-07-18 US US05/816,800 patent/US4236426A/en not_active Expired - Lifetime
- 1977-07-19 CA CA283,074A patent/CA1087874A/fr not_active Expired
- 1977-07-20 JP JP8721077A patent/JPS5313004A/ja active Pending
- 1977-07-20 FR FR7722295A patent/FR2359327A1/fr active Granted
- 1977-07-20 AU AU27191/77A patent/AU512498B2/en not_active Expired
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE263512C (fr) * | ||||
DE371197C (de) * | 1919-12-29 | 1923-03-12 | Expl Des Procedes Maurice Lebl | Verfahren zum Einschraenken der Wellendeformation eines Laeufers |
FR1064742A (fr) * | 1951-09-26 | 1954-05-17 | Houdaille Hershey Corp | Perfectionnements relatifs aux amortisseurs de vibrations |
US3110481A (en) * | 1958-09-26 | 1963-11-12 | Westinghouse Electric Corp | Magnetic shaft damper |
FR1535965A (fr) * | 1966-09-13 | 1968-08-09 | Reactor Centrum Nederland | Amortisseur de vibrations |
FR1577754A (fr) * | 1967-08-25 | 1969-08-08 | ||
FR2196689A5 (fr) * | 1972-08-16 | 1974-03-15 | Dornier System Gmbh |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2463331A1 (fr) * | 1979-08-13 | 1981-02-20 | Zhivotov Jury | Procede d'equilibrage de corps de revolution et dispositif pour sa mise en oeuvre |
WO1983003985A1 (fr) * | 1982-05-19 | 1983-11-24 | Beckman Instruments, Inc. | Palier stabilisateur pour centrifugeuse |
US5026341A (en) * | 1987-05-22 | 1991-06-25 | Robert Giebeler | Low speed disengageable damper |
EP0695888A1 (fr) * | 1994-08-03 | 1996-02-07 | Pierre Patin | Procédé et dispositif pour éviter les vibrations d'un arbre de grande longueur |
FR2723413A1 (fr) * | 1994-08-03 | 1996-02-09 | Patin Pierre | Procede et dispositif pour eviter les vibrations d'un arbre de grande longueur |
US5769381A (en) * | 1994-08-03 | 1998-06-23 | Patin; Pierre | Process for preventing vibrations of cylinders in a cylinder conveyor |
FR2908736A1 (fr) * | 2006-11-16 | 2008-05-23 | Eurocopter France | Systeme de transmission mecanique a amortisseur magnetique pour giravion |
US7914383B2 (en) | 2006-11-16 | 2011-03-29 | Eurocopter | Mechanical transmission system with a magnetic damper for a rotorcraft |
Also Published As
Publication number | Publication date |
---|---|
US4236426A (en) | 1980-12-02 |
NL7707142A (nl) | 1978-01-24 |
IT1080569B (it) | 1985-05-16 |
JPS5313004A (en) | 1978-02-06 |
FR2359327B1 (fr) | 1983-03-18 |
AU2719177A (en) | 1979-01-25 |
AU512498B2 (en) | 1980-10-16 |
SE432978B (sv) | 1984-04-30 |
GB1580141A (en) | 1980-11-26 |
CA1087874A (fr) | 1980-10-21 |
DE2632586C2 (de) | 1983-05-19 |
DE2632586A1 (de) | 1978-01-26 |
SE7707385L (sv) | 1978-01-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |