JP2004324646A - 翼形部先端を構造的に支持するための方法及び装置 - Google Patents
翼形部先端を構造的に支持するための方法及び装置 Download PDFInfo
- Publication number
- JP2004324646A JP2004324646A JP2004126242A JP2004126242A JP2004324646A JP 2004324646 A JP2004324646 A JP 2004324646A JP 2004126242 A JP2004126242 A JP 2004126242A JP 2004126242 A JP2004126242 A JP 2004126242A JP 2004324646 A JP2004324646 A JP 2004324646A
- Authority
- JP
- Japan
- Prior art keywords
- airfoil
- side wall
- rib
- tip
- ribs
- 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.)
- Pending
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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
- F01D5/141—Shape, i.e. outer, aerodynamic form
- F01D5/145—Means for influencing boundary layers or secondary circulations
-
- 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
- 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
- F01D5/20—Specially-shaped blade tips to seal space between tips and stator
-
- 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
- F05D2240/00—Components
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S416/00—Fluid reaction surfaces, i.e. impellers
- Y10S416/50—Vibration damping features
Abstract
【解決手段】 ガスタービンエンジン(10)用の翼形部(42)は、前縁(48)と、後縁(50)と、先端(54)と、翼形部の第1の側面を画成するように翼形部根元(52)と先端との間を半径方向スパンで延びる第1の側壁(44)と、前縁及び後縁において第1の側壁に接合されかつ翼形部の第2の側面を画成するように翼形部根元と先端との間を半径方向スパンで延びる第2の側壁(46)とを含む。翼形部はまた、第1の側壁及び第2の側壁の少なくとも1つから外向きに延びるリブ(70)を含み、該翼形部の翼弦方向振動の固有振動数をエンジン作動時にガスタービンエンジン内に存在しない振動数まで増大させるようにする。
【選択図】 図3
Description
42 翼形部
44 翼形部第1の側壁
46 翼形部第2の側壁
48 翼形部前縁
50 翼形部後縁
54 翼形部先端
70 リブ
Claims (10)
- 前縁(48)と後縁(50)と先端(54)と、
翼形部根元(52)と前記先端との間を半径方向スパンで延びかつ翼形部の第1の側面を画成する第1の側壁(44)と、
前記前縁及び後縁において前記第1の側壁に接合され、前記翼形部根元と前記先端との間を半径方向スパンで延び、かつ翼形部の第2の側面を画成する第2の側壁(46)と、
前記第1の側壁及び第2の側壁の少なくとも1つから外向きに延びるリブ(70)と、
を含み、前記翼形部の翼弦方向振動の固有振動数を正常エンジン作動時のいかなる励振振動数によっても励振されない振動数まで増大させるようになっている、
ガスタービンエンジン(10)用の翼形部(42)。 - 前記翼形部第1の側壁(44)及び第2の側壁(46)の少なくとも1つが凹面形であり、残りの側壁が凸面形であり、前記リブが翼形部前縁(48)から翼弦方向に翼形部後縁(50)に向かって延びている、請求項1記載の翼形部(42)。
- エンジン作動時における前記翼形部へのエネルギー入力が、励振力と該励振力の作用点における翼形部の変位との積によって計算され、前記リブ(70)が、前記翼形部の変位量を減少させるのを可能にするように構成されている、請求項1記載の翼形部(42)。
- 前記リブ(70)が、エンジン作動時における翼形部先端の振幅を減少させるのを可能にするように構成されている、請求項1記載の翼形部(42)。
- 前記リブ(70)が、翼形部後縁(50)から翼弦方向に翼形部前縁(48)に向かって延びている、請求項1記載の翼形部(42)。
- 前記リブ(70)が、翼形部先端(54)から半径方向距離(100)に位置している、請求項1記載の翼形部(42)。
- 第1のリブ(70)が第1の側壁(44)から外向きに延び、また第2のリブ(202)が第2の側壁(46)から外向きに延びている、請求項1記載の翼形部(42)。
- 複数のロータブレード(24)を含み、各ロータブレードが、前縁(48)と、後縁(50)と、第1の側壁(44)と、第2の側壁(46)と、少なくとも1つのリブ(70)とを備えた翼形部(42)を含み、前記翼形部第1及び第2の側壁が前記前縁及び後縁において軸方向に接合されかつブレード根元(52)から半径方向に翼形部先端(54)まで延び、前記リブが前記翼形部第1の側壁及び翼形部第2の側壁の少なくとも1つから外向きに延びて、該翼形部の翼弦方向振動の固有振動数を正常エンジン作動時のいかなる励振振動数によっても励振されない振動数まで増大させるようになっているガスタービンエンジン(10)。
- 前記ロータブレード翼形部の第1の側壁(44)及び第2の側壁(46)の少なくとも1つが凹面形であり、該翼形部の第1の側壁及び第2の側壁の少なくとも1つが凸面形である、請求項8記載のガスタービンエンジン(10)。
- エンジン作動時における翼形部(42)へのエネルギー入力が、翼形部に作用する励振力総量と該励振力に対応する該励振力の作用点における翼形部の変位量との積によって計算され、前記リブ(70)が、前記翼形部の変位量を減少させるのを可能にするように構成にされている、請求項9記載の翼形部(42)。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/421,286 US6779979B1 (en) | 2003-04-23 | 2003-04-23 | Methods and apparatus for structurally supporting airfoil tips |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004324646A true JP2004324646A (ja) | 2004-11-18 |
JP2004324646A5 JP2004324646A5 (ja) | 2007-06-14 |
Family
ID=32869256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004126242A Pending JP2004324646A (ja) | 2003-04-23 | 2004-04-22 | 翼形部先端を構造的に支持するための方法及び装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US6779979B1 (ja) |
EP (1) | EP1471209A3 (ja) |
JP (1) | JP2004324646A (ja) |
CA (1) | CA2464249A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9976430B2 (en) | 2013-06-06 | 2018-05-22 | Ihi Corporation | Blade in fan, and fan |
JP2018514704A (ja) * | 2015-05-09 | 2018-06-07 | マン・ディーゼル・アンド・ターボ・エスイー | 洗浄システムを備えたガイドベーンを有する圧縮機 |
US10465555B2 (en) | 2014-11-17 | 2019-11-05 | Ihi Corporation | Airfoil for axial flow machine |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6905309B2 (en) * | 2003-08-28 | 2005-06-14 | General Electric Company | Methods and apparatus for reducing vibrations induced to compressor airfoils |
US7320575B2 (en) * | 2004-09-28 | 2008-01-22 | General Electric Company | Methods and apparatus for aerodynamically self-enhancing rotor blades |
EP1801422B1 (de) * | 2005-12-22 | 2013-06-12 | Ziehl-Abegg AG | Ventilator und Ventilatorflügel |
US7758311B2 (en) * | 2006-10-12 | 2010-07-20 | General Electric Company | Part span shrouded fan blisk |
CN101255800B (zh) * | 2008-02-28 | 2010-06-09 | 大连海事大学 | 涡轮或汽轮机动叶叶尖小翼 |
US8591195B2 (en) | 2010-05-28 | 2013-11-26 | Pratt & Whitney Canada Corp. | Turbine blade with pressure side stiffening rib |
EP2584146A1 (de) * | 2011-10-21 | 2013-04-24 | Siemens Aktiengesellschaft | Verfahren zum Herstellen einer Laufschaufel für eine Strömungsmaschine und entsprechende Laufschaufel |
US10087764B2 (en) | 2012-03-08 | 2018-10-02 | Pratt & Whitney Canada Corp. | Airfoil for gas turbine engine |
US10465531B2 (en) | 2013-02-21 | 2019-11-05 | General Electric Company | Turbine blade tip shroud and mid-span snubber with compound contact angle |
US20140241899A1 (en) * | 2013-02-25 | 2014-08-28 | Pratt & Whitney Canada Corp. | Blade leading edge tip rib |
EP3280918B1 (en) | 2015-04-08 | 2021-03-03 | Horton, Inc. | Fan blade with flow modification features on the pressure side |
CN106368741A (zh) * | 2016-11-09 | 2017-02-01 | 哈尔滨工业大学 | 一种具有小翼肋条叶尖的叶片及使用该叶片的涡轮 |
DE102017216620A1 (de) | 2017-09-20 | 2019-03-21 | MTU Aero Engines AG | Schaufel für eine Strömungsmaschine |
US10787932B2 (en) * | 2018-07-13 | 2020-09-29 | Honeywell International Inc. | Turbine blade with dust tolerant cooling system |
US11692462B1 (en) | 2022-06-06 | 2023-07-04 | General Electric Company | Blade having a rib for an engine and method of directing ingestion material using the same |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB840543A (en) * | 1956-01-16 | 1960-07-06 | Vickers Electrical Co Ltd | Improvements in turbine blading |
DE1108374B (de) * | 1960-02-23 | 1961-06-08 | M A N Turbomotoren G M B H | Einrichtung zur Vermeidung von Sekundaerstroemungen in Schaufelkanaelen von Stroemungsmaschinen |
US3012709A (en) * | 1955-05-18 | 1961-12-12 | Daimler Benz Ag | Blade for axial compressors |
US3193185A (en) * | 1962-10-29 | 1965-07-06 | Gen Electric | Compressor blading |
DE2135287A1 (de) * | 1971-07-15 | 1973-01-25 | Wilhelm Prof Dr Ing Dettmering | Lauf- und leitradgitter fuer turbomaschinen |
JP2000145407A (ja) * | 1998-11-04 | 2000-05-26 | Asea Brown Boveri Ag | 軸流タ―ビン |
US20010002235A1 (en) * | 1999-11-30 | 2001-05-31 | Mtu Motoren-Und Turbinen-Union Munchen Gmbh | Blade with optimized vibration behavior |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3706512A (en) * | 1970-11-16 | 1972-12-19 | United Aircraft Canada | Compressor blades |
US4108573A (en) * | 1977-01-26 | 1978-08-22 | Westinghouse Electric Corp. | Vibratory tuning of rotatable blades for elastic fluid machines |
US4589824A (en) | 1977-10-21 | 1986-05-20 | United Technologies Corporation | Rotor blade having a tip cap end closure |
US4919593A (en) * | 1988-08-30 | 1990-04-24 | Westinghouse Electric Corp. | Retrofitted rotor blades for steam turbines and method of making the same |
US5261789A (en) | 1992-08-25 | 1993-11-16 | General Electric Company | Tip cooled blade |
DE19913269A1 (de) * | 1999-03-24 | 2000-09-28 | Asea Brown Boveri | Turbinenschaufel |
US6179556B1 (en) | 1999-06-01 | 2001-01-30 | General Electric Company | Turbine blade tip with offset squealer |
US6164914A (en) | 1999-08-23 | 2000-12-26 | General Electric Company | Cool tip blade |
US6382913B1 (en) | 2001-02-09 | 2002-05-07 | General Electric Company | Method and apparatus for reducing turbine blade tip region temperatures |
ITTO20011075A1 (it) * | 2001-11-16 | 2003-05-16 | Fiatavio Spa | Organo a palette, in particolare per una turbina assiale di un motoreaeronautico. |
US7270519B2 (en) * | 2002-11-12 | 2007-09-18 | General Electric Company | Methods and apparatus for reducing flow across compressor airfoil tips |
-
2003
- 2003-04-23 US US10/421,286 patent/US6779979B1/en not_active Expired - Fee Related
-
2004
- 2004-04-08 CA CA002464249A patent/CA2464249A1/en not_active Abandoned
- 2004-04-21 EP EP04252339A patent/EP1471209A3/en not_active Withdrawn
- 2004-04-22 JP JP2004126242A patent/JP2004324646A/ja active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3012709A (en) * | 1955-05-18 | 1961-12-12 | Daimler Benz Ag | Blade for axial compressors |
GB840543A (en) * | 1956-01-16 | 1960-07-06 | Vickers Electrical Co Ltd | Improvements in turbine blading |
DE1108374B (de) * | 1960-02-23 | 1961-06-08 | M A N Turbomotoren G M B H | Einrichtung zur Vermeidung von Sekundaerstroemungen in Schaufelkanaelen von Stroemungsmaschinen |
US3193185A (en) * | 1962-10-29 | 1965-07-06 | Gen Electric | Compressor blading |
DE2135287A1 (de) * | 1971-07-15 | 1973-01-25 | Wilhelm Prof Dr Ing Dettmering | Lauf- und leitradgitter fuer turbomaschinen |
JP2000145407A (ja) * | 1998-11-04 | 2000-05-26 | Asea Brown Boveri Ag | 軸流タ―ビン |
US20010002235A1 (en) * | 1999-11-30 | 2001-05-31 | Mtu Motoren-Und Turbinen-Union Munchen Gmbh | Blade with optimized vibration behavior |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9976430B2 (en) | 2013-06-06 | 2018-05-22 | Ihi Corporation | Blade in fan, and fan |
US10465555B2 (en) | 2014-11-17 | 2019-11-05 | Ihi Corporation | Airfoil for axial flow machine |
JP2018514704A (ja) * | 2015-05-09 | 2018-06-07 | マン・ディーゼル・アンド・ターボ・エスイー | 洗浄システムを備えたガイドベーンを有する圧縮機 |
Also Published As
Publication number | Publication date |
---|---|
CA2464249A1 (en) | 2004-10-23 |
EP1471209A2 (en) | 2004-10-27 |
US6779979B1 (en) | 2004-08-24 |
EP1471209A3 (en) | 2006-07-12 |
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