JP2005140114A - タービンシュラウド用のばね質量ダンパシステム - Google Patents
タービンシュラウド用のばね質量ダンパシステム Download PDFInfo
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- JP2005140114A JP2005140114A JP2004320157A JP2004320157A JP2005140114A JP 2005140114 A JP2005140114 A JP 2005140114A JP 2004320157 A JP2004320157 A JP 2004320157A JP 2004320157 A JP2004320157 A JP 2004320157A JP 2005140114 A JP2005140114 A JP 2005140114A
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- Prior art keywords
- shroud
- damper
- damper block
- spring
- block
- 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.)
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- 238000013016 damping Methods 0.000 claims abstract description 19
- 238000001816 cooling Methods 0.000 claims description 12
- 239000002826 coolant Substances 0.000 claims description 9
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 239000000919 ceramic Substances 0.000 abstract description 11
- 239000002131 composite material Substances 0.000 abstract description 10
- 239000002184 metal Substances 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 230000036316 preload Effects 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000011153 ceramic matrix composite Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/005—Selecting particular materials
-
- 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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
-
- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/04—Antivibration arrangements
-
- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/246—Fastening of diaphragms or stator-rings
-
- 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
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Springs (AREA)
Abstract
【解決手段】 本ダンパシステムは、タービンの高温ガス通路の一部を画成するセラミック複合材シュラウド(12)と、ばね付勢されたピストン(32)と、シュラウドの背面(22)に対して押し付けられて共振周波数応答の近傍又は共振周波数応答を回避するように高温ガス通路の圧力パルスに対するシュラウドの振動応答を調整するダンパブロック(16)とを含む。ダンパブロックは、シュラウドに対して押し付けられて該シュラウドの周波数応答を減衰させかつ該シュラウドとダンパブロックとの間に熱絶縁層を形成するように特別に設置された複数の突起(20)を有する。
【選択図】 図1
Description
12 シュラウド
16 ダンパブロック
20、20a、20b、20c ダンパブロックの突起
22 シュラウドの背面表面
30 ダンピング機構
32 ピストン
34 シュラウドブロックの開口
36 ボール
38 ダンパブロックのソケット
39 ボールソケット継手
42 冷却通路
44 フィルム冷却孔
50 金属ワッシャ
52 熱絶縁ワッシャ
54 カップ
60 ばね
62 ハウジング
64 キャップ
65 使用済み冷却媒体通路
67 中央開口
Claims (10)
- タービン段用のダンパシステムであって、
タービンを通る高温ガス通路の一部を画成する第1の表面(11)を有するシュラウド(12)と、
前記シュラウドを支持するシュラウド本体(10)と、
その表面(18)から隆起しかつ前記第1の表面と対向する前記シュラウドの背面表面(22)と係合する少なくとも3つの突起(20)を有するダンパブロック(16)と、
前記シュラウド本体によって支持されかつ前記ダンパブロックに結合されて、前記シュラウドの背面表面との前記突起の係合により前記ダンパブロック及びシュラウドに荷重を加え、それによって前記シュラウドの振動運動を減衰させるようになったダンピング機構(30)と、
を含むダンパシステム。 - 前記突起の2つ(20a、20b)が、タービンを通る高温ガスの流れの方向に対して上流方向における前記ダンパブロック表面(18)の前端縁に隣接して位置し、また前記少なくとも3つの突起の第3の突起(20c)が、前記ダンパブロックの側部の中間において前記ダンパブロック表面の後端縁に隣接して位置している、請求項1記載のシステム。
- 前記ダンパブロック表面(18)が、前記突起(20)によって前記シュラウドの背面表面(22)から間隔を置いて配置されて、前記シュラウドとダンパブロックとの間に熱絶縁層を形成している、請求項1記載のシステム。
- 前記シュラウドがセラミック材料で形成され、また前記ダンパブロックが金属材料で形成されている、請求項1記載のシステム。
- 前記ダンピング機構が、ばね(60)と前記ばねによって付勢されて前記ダンパブロックに対して荷重を加えるピストン(32)とを含む、請求項1記載のシステム。
- タービン段用のダンパシステムであって、
タービンを通る高温ガス通路の一部を画成する第1の表面(11)を有する、セラミック材料で形成されたシュラウド(12)と、
前記シュラウドを支持するシュラウド本体(10)と、
前記シュラウド本体によって支持されかつ前記シュラウドと係合する、金属材料で形成されたダンパブロック(16)と、
前記シュラウド本体によって支持されかつ前記ダンパブロックに結合されて前記ダンパブロック及びシュラウドに荷重を加えて前記シュラウドの振動運動を減衰させるようになった、前記ダンパブロックに荷重を加えるためのばね(60)を含むダンピング機構(30)と、
を含むダンパシステム。 - 前記ばねを冷却するための冷却媒体と連通した前記ばね用のハウジング(62)を含む、請求項6記載のシステム。
- 前記ダンピング機構がピストン(32)を含み、前記ダンパブロックがボールソケット継手(39)によって前記ピストンに固定され、前記ボールソケット継手内に冷却媒体を供給するための少なくとも1つの冷却通路(42)が、前記ピストンに沿って設けられている、請求項6記載のシステム。
- 前記ピストンが、前記シュラウド本体の開口(34)を貫通し、かつ前記開口を貫通する該ピストンの表面に沿って互いに間隔を置いて配置されて酸化及び/又は摩耗によるピストンとシュラウドブロックとの膠着を最小にする少なくとも一対のランド部(48)を含む、請求項8記載のシステム。
- 前記スプリング用のカップ形ハウジング(62)と、前記ハウジングの一端に設けられかつ前記スプリングの一端部がそれに対して押し付けられたキャップ(64)と、前記スプリングの反対側端部と前記ピストンとの間に設けられた環状の熱絶縁ワッシャ(52)と、前記ハウジング内に開口した前記スプリングを冷却するための冷却通路(67)とを含む、請求項8記載のシステム。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/700,251 US6942203B2 (en) | 2003-11-04 | 2003-11-04 | Spring mass damper system for turbine shrouds |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2005140114A true JP2005140114A (ja) | 2005-06-02 |
JP2005140114A5 JP2005140114A5 (ja) | 2007-12-20 |
JP4681272B2 JP4681272B2 (ja) | 2011-05-11 |
Family
ID=34435517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004320157A Active JP4681272B2 (ja) | 2003-11-04 | 2004-11-04 | タービンシュラウド用のばね質量ダンパシステム |
Country Status (4)
Country | Link |
---|---|
US (3) | US6942203B2 (ja) |
EP (1) | EP1529926B1 (ja) |
JP (1) | JP4681272B2 (ja) |
CN (1) | CN100430574C (ja) |
Cited By (3)
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JP2007127127A (ja) * | 2005-11-03 | 2007-05-24 | General Electric Co <Ge> | ダンパー封止システムおよび方法 |
JP2009052553A (ja) * | 2007-08-23 | 2009-03-12 | General Electric Co <Ge> | ガスタービンシュラウド支持装置 |
JP2017082766A (ja) * | 2015-09-18 | 2017-05-18 | ゼネラル・エレクトリック・カンパニイ | セラミックマトリックス複合材リングシュラウド保持方法、並びにcmcピンヘッド |
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Also Published As
Publication number | Publication date |
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US6942203B2 (en) | 2005-09-13 |
EP1529926A2 (en) | 2005-05-11 |
EP1529926B1 (en) | 2014-09-17 |
US7434670B2 (en) | 2008-10-14 |
US7117983B2 (en) | 2006-10-10 |
CN100430574C (zh) | 2008-11-05 |
EP1529926A3 (en) | 2012-08-22 |
US20050092566A1 (en) | 2005-05-05 |
US20050093214A1 (en) | 2005-05-05 |
CN1614199A (zh) | 2005-05-11 |
JP4681272B2 (ja) | 2011-05-11 |
US20080202877A1 (en) | 2008-08-28 |
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