FR2935427B1 - Methode de reduction des niveaux vibratoires d'un doublet et roues aubagees contrarotatives de turbomachine. - Google Patents
Methode de reduction des niveaux vibratoires d'un doublet et roues aubagees contrarotatives de turbomachine.Info
- Publication number
- FR2935427B1 FR2935427B1 FR0855756A FR0855756A FR2935427B1 FR 2935427 B1 FR2935427 B1 FR 2935427B1 FR 0855756 A FR0855756 A FR 0855756A FR 0855756 A FR0855756 A FR 0855756A FR 2935427 B1 FR2935427 B1 FR 2935427B1
- Authority
- FR
- France
- Prior art keywords
- contrarotative
- turbomachine
- doublet
- airborne
- wheels
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/16—Form or construction for counteracting blade vibration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K3/00—Plants including a gas turbine driving a compressor or a ducted fan
- F02K3/02—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber
- F02K3/04—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type
- F02K3/072—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type with counter-rotating, e.g. fan rotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/141—Shape, i.e. outer, aerodynamic form
- F01D5/142—Shape, i.e. outer, aerodynamic form of the blades of successive rotor or stator blade-rows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2200/00—Mathematical features
- F05D2200/20—Special functions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/80—Diagnostics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/96—Preventing, counteracting or reducing vibration or noise
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/4932—Turbomachine making
- Y10T29/49321—Assembling individual fluid flow interacting members, e.g., blades, vanes, buckets, on rotary support member
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0855756A FR2935427B1 (fr) | 2008-08-27 | 2008-08-27 | Methode de reduction des niveaux vibratoires d'un doublet et roues aubagees contrarotatives de turbomachine. |
US12/548,040 US8375698B2 (en) | 2008-08-27 | 2009-08-26 | Method for reducing the vibration levels of a propfan of contrarotating bladed disks of a turbine engine |
GB0914900.6A GB2462921B (en) | 2008-08-27 | 2009-08-27 | Method for reducing the vibration levels of a propfan of contrarotating bladed discs of a turbine engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0855756A FR2935427B1 (fr) | 2008-08-27 | 2008-08-27 | Methode de reduction des niveaux vibratoires d'un doublet et roues aubagees contrarotatives de turbomachine. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2935427A1 FR2935427A1 (fr) | 2010-03-05 |
FR2935427B1 true FR2935427B1 (fr) | 2010-09-24 |
Family
ID=40456338
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0855756A Active FR2935427B1 (fr) | 2008-08-27 | 2008-08-27 | Methode de reduction des niveaux vibratoires d'un doublet et roues aubagees contrarotatives de turbomachine. |
Country Status (3)
Country | Link |
---|---|
US (1) | US8375698B2 (fr) |
FR (1) | FR2935427B1 (fr) |
GB (1) | GB2462921B (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010009615B4 (de) * | 2010-02-27 | 2016-11-17 | MTU Aero Engines AG | Schaufelblatt mit gefädelten Profilschnitten |
US9963974B2 (en) * | 2012-10-23 | 2018-05-08 | United Technologies Corporation | Reduction of equally spaced turbine nozzle vane excitation |
EP3239460A1 (fr) * | 2016-04-27 | 2017-11-01 | Siemens Aktiengesellschaft | Procede de profilage d'aubes d'une turbomachine axiale |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1084184A (fr) * | ||||
US4483658A (en) * | 1979-12-11 | 1984-11-20 | Levine Elliott M | Rotational wake reaction steps for Foils |
GB2066370B (en) * | 1979-12-11 | 1983-09-14 | Levine E M | Rotational wake reaction synergetic staging for axial flow foils |
DE3812027A1 (de) * | 1988-04-11 | 1989-10-26 | Mtu Muenchen Gmbh | Propfan-turbotriebwerk |
US5993161A (en) * | 1997-02-21 | 1999-11-30 | California Institute Of Technology | Rotors with mistuned blades |
FR2824597B1 (fr) * | 2001-05-11 | 2004-04-02 | Snecma Moteurs | Reduction de vibrations dans une structure comprenant un rotor et des sources de perturbation fixes |
US6666017B2 (en) * | 2002-05-24 | 2003-12-23 | General Electric Company | Counterrotatable booster compressor assembly for a gas turbine engine |
JP2006046226A (ja) * | 2004-08-05 | 2006-02-16 | Mitsubishi Heavy Ind Ltd | 動静翼の励振低減構造 |
RU2280169C2 (ru) * | 2004-10-05 | 2006-07-20 | Федеральное государственное унитарное предприятие "Центральный институт авиационного моторостроения им. П.И. Баранова" | Осевая турбомашина с пониженным уровнем пульсаций давления, возбуждающих вибрации лопаток и излучаемый шум |
FR2913074B1 (fr) * | 2007-02-27 | 2009-05-22 | Snecma Sa | Methode de reduction des niveaux vibratoires d'une roue aubagee de turbomachine. |
FR2921099B1 (fr) * | 2007-09-13 | 2013-12-06 | Snecma | Dispositif d'amortissement pour aube en materiau composite |
-
2008
- 2008-08-27 FR FR0855756A patent/FR2935427B1/fr active Active
-
2009
- 2009-08-26 US US12/548,040 patent/US8375698B2/en active Active
- 2009-08-27 GB GB0914900.6A patent/GB2462921B/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20100050594A1 (en) | 2010-03-04 |
FR2935427A1 (fr) | 2010-03-05 |
US8375698B2 (en) | 2013-02-19 |
GB0914900D0 (en) | 2009-09-30 |
GB2462921A (en) | 2010-03-03 |
GB2462921B (en) | 2012-09-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BRPI0919281A2 (pt) | processo e sistema de lubrificacao de uma turbomáquina, e, turbomáquina | |
DE602007006263D1 (de) | Turbomaschine | |
CR10269A (es) | "nuevo derivado de cumarina que tiene actividad antitumoral" | |
EP2097864A4 (fr) | Procédé et appareil permettant l'envoi de messages de récompense, l'attribution de réductions et de primes à un point d'interaction | |
BRPI0820419A2 (pt) | "arranjos, conjuntos e métodos de filtro de ar" | |
IL196979A0 (en) | Formulations of flibanserin and method for manufacturing the same | |
ZA200810633B (en) | Formulations of flibanserin and method for manufacturing the same | |
ZA200808667B (en) | Method of inducing tolerance of plants against bacterioses | |
FR2929661B1 (fr) | Retenue axiale d'aubes de compresseur. | |
ZA200808666B (en) | Method of inducing virus tolerance of plants | |
BRPI0718661A2 (pt) | Método para prevenir o crescimento de microorganismos, e uma combinação para a prevenção do crescimento microbiano | |
DE602007006116D1 (de) | Axiallüfter und Auslegungsverfahren dafür | |
BRPI0719904A2 (pt) | Aço inoxidável martensítico | |
CR10257A (es) | "método para inducir la tolerancia de plantas contra bacteriosis" | |
BRPI0911186A2 (pt) | trem de rolamento unitário e conjunto de rolamento que o compreende | |
EP2026829A4 (fr) | Méthode et composé pour le traitement des sténoses valvulaires | |
ZA200807930B (en) | Systems and method for customized gaming limits | |
DE602006014866D1 (de) | Elastisches polyurethangarn und verfahren zu seiner herstellung | |
BRPI1004915A2 (pt) | "turbo carregador, sistema de turbo carregador e método | |
FR2935350B1 (fr) | Methode de reduction des niveaux vibratoires d'une helice de turbomoteur. | |
GB0902637D0 (en) | Air cleaner and shut-down method | |
EP1914308A4 (fr) | Plante resistant au froid et procede visant a la developper | |
FR2935427B1 (fr) | Methode de reduction des niveaux vibratoires d'un doublet et roues aubagees contrarotatives de turbomachine. | |
FR2913074B1 (fr) | Methode de reduction des niveaux vibratoires d'une roue aubagee de turbomachine. | |
EP2262594A4 (fr) | Balle de nettoyage et procédé de fonctionnement associé |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PLFP | Fee payment |
Year of fee payment: 8 |
|
PLFP | Fee payment |
Year of fee payment: 9 |
|
PLFP | Fee payment |
Year of fee payment: 10 |
|
CD | Change of name or company name |
Owner name: SNECMA, FR Effective date: 20170713 |
|
PLFP | Fee payment |
Year of fee payment: 11 |
|
PLFP | Fee payment |
Year of fee payment: 12 |
|
PLFP | Fee payment |
Year of fee payment: 13 |
|
PLFP | Fee payment |
Year of fee payment: 14 |
|
PLFP | Fee payment |
Year of fee payment: 15 |
|
PLFP | Fee payment |
Year of fee payment: 16 |