JP5357338B2 - 翼の配列方法 - Google Patents
翼の配列方法 Download PDFInfo
- Publication number
- JP5357338B2 JP5357338B2 JP2012533804A JP2012533804A JP5357338B2 JP 5357338 B2 JP5357338 B2 JP 5357338B2 JP 2012533804 A JP2012533804 A JP 2012533804A JP 2012533804 A JP2012533804 A JP 2012533804A JP 5357338 B2 JP5357338 B2 JP 5357338B2
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- Japan
- Prior art keywords
- blade
- natural frequency
- blades
- turbine rotor
- lowest natural
- 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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Classifications
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- 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
- F01D5/26—Antivibration means not restricted to blade form or construction or to blade-to-blade connections or to the use of 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/04—Antivibration arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
2 シュラウド
3 ロータ
6 シュラウド
7 翼部
8 付根部
9 接触面
11 節半径
12 振動モードの節
Claims (4)
- タービンロータの外周に複数取付けられ環状翼列を形成する翼の配列方法において、
前記環状翼列を形成する複数枚の翼を固有振動数の低いグループと高いグループに分け、
前記固有振動数の低いグループの翼を前記タービンロータの半分の領域に配列し、
前記固有振動数の高いグループの翼を前記タービンロータの前記半分の領域と反対側の領域に配列することを特徴とする翼の配列方法。 - タービンロータの外周に複数取付けられ環状翼列を形成する翼の配列方法において、
前記環状翼列を形成する複数枚の翼のうち、固有振動数が最も低い翼を前記タービンロータの任意の箇所に配置し、
前記固有振動数の最も低い翼の両隣にその次に固有振動数の低い2枚の翼を配列し、
前記2枚の翼の隣に次に固有振動数の低い2枚の翼を配列することを繰り返して、前記環状翼列を形成することを特徴とする翼の配列方法。 - 請求項2に記載の翼の配列方法において、
前記固有振動数の最も低い翼の一方の隣に2番目に固有振動数の低い翼、他方の隣に3番目に固有振動数の低い翼を配列し、前記2番目に固有振動数の低い翼の隣に4番目に固有振動数の低い翼、前記3番目に固有振動数の低い翼の隣に5番目に固有振動数の低い翼の順に配列していくことを最も固有振動数の高いn番目の翼まで順次繰り返して、前記環状翼列を形成することを特徴とする翼の配列方法。 - 請求項1又は2に記載の翼の配列方法において、
前記環状翼列を形成した後、タービンロータに生じたアンバランスを釣り合わせによって除去することを特徴とする翼の配列方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2010/066219 WO2012035658A1 (ja) | 2010-09-17 | 2010-09-17 | 翼の配列方法 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP5357338B2 true JP5357338B2 (ja) | 2013-12-04 |
JP5357338B6 JP5357338B6 (ja) | 2014-01-15 |
JPWO2012035658A1 JPWO2012035658A1 (ja) | 2014-01-20 |
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Also Published As
Publication number | Publication date |
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JPWO2012035658A1 (ja) | 2014-01-20 |
WO2012035658A1 (ja) | 2012-03-22 |
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