JP5309818B2 - 気流状態監視装置 - Google Patents
気流状態監視装置 Download PDFInfo
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- JP5309818B2 JP5309818B2 JP2008232177A JP2008232177A JP5309818B2 JP 5309818 B2 JP5309818 B2 JP 5309818B2 JP 2008232177 A JP2008232177 A JP 2008232177A JP 2008232177 A JP2008232177 A JP 2008232177A JP 5309818 B2 JP5309818 B2 JP 5309818B2
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- sound
- airflow
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- 238000012806 monitoring device Methods 0.000 title claims description 29
- 238000000926 separation method Methods 0.000 claims description 41
- 238000005259 measurement Methods 0.000 claims description 26
- 238000012544 monitoring process Methods 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 17
- 230000002250 progressing effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 38
- 238000012545 processing Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000002542 deteriorative effect Effects 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Description
本実施形態に係る気流状態監視装置は、例えば飛行機の翼部表面の気流状態を監視する場合に好適に採用されるものである。
第2実施形態に係る気流状態監視装置は、第1実施形態に係る気流状態監視装置20とほぼ同様に構成されるものであって、気流状態監視装置20と比べ、気流Kの剥離状態の進行を予測する機能を有する点が相違する。なお、第2実施形態においては、第1実施形態と重複する部分は説明を省略し、相違点を中心に説明する。
Claims (3)
- 飛行機の翼面の気流状態を監視する気流状態監視装置であって、
翼面における音を検出する複数の音検出手段と、
前記音検出手段により検出された音の状態に基づいて翼面の気流剥離を検知し、複数の前記音検出手段により検出された音に基づいて翼面の気流剥離の進行を予測する気流状態検知手段と、
を備え、
複数の前記音検出手段は、翼面上に気流の流れに沿って並んでいる測定位置にて音を検出し、
前記気流状態検知手段は、
所定周波数以上の周波数を検出した場合には、所定周波数以上の周波数を検出したタイミングで翼面の気流剥離が発生したと検知し、
複数の前記音検出手段により検出された音の周波数に基づいて、機体後方側から進行する気流剥離の進行の速度を算出し、算出された速度に基づいて所定箇所での気流剥離のタイミング又は所定時間経過後の剥離状況を予測する気流状態監視装置。 - 前記音検出手段は、集音可能な形状に構成され、当該形状の焦点における音を取得する請求項1に記載の気流状態監視装置。
- 前記集音可能な形状は、パラボラ形状である請求項2に記載の気流状態監視装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008232177A JP5309818B2 (ja) | 2008-09-10 | 2008-09-10 | 気流状態監視装置 |
Applications Claiming Priority (1)
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JP2008232177A JP5309818B2 (ja) | 2008-09-10 | 2008-09-10 | 気流状態監視装置 |
Publications (2)
Publication Number | Publication Date |
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JP2010064586A JP2010064586A (ja) | 2010-03-25 |
JP5309818B2 true JP5309818B2 (ja) | 2013-10-09 |
Family
ID=42190555
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2008232177A Expired - Fee Related JP5309818B2 (ja) | 2008-09-10 | 2008-09-10 | 気流状態監視装置 |
Country Status (1)
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JP (1) | JP5309818B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2412941A1 (en) * | 2010-07-26 | 2012-02-01 | Siemens Aktiengesellschaft | Exhaust diffuser for a gas turbine, and method thereof |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4936146A (en) * | 1988-06-07 | 1990-06-26 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method and apparatus for detecting laminar flow separation and reattachment |
JP2781647B2 (ja) * | 1990-07-31 | 1998-07-30 | 三菱重工業株式会社 | 対気速度検出装置 |
JPH07210180A (ja) * | 1994-01-12 | 1995-08-11 | Sony Corp | 集音マイク |
JP3103034B2 (ja) * | 1996-08-06 | 2000-10-23 | リオン株式会社 | 走行列車の情報検出方法 |
DE19923087B4 (de) * | 1999-05-20 | 2004-02-26 | Eads Deutschland Gmbh | Vorrichtung zur Druck-, Schall- und Vibrationsmessung, sowie Verfahren zur Strömungsanalyse an Bauteiloberflächen |
JP2001041192A (ja) * | 1999-07-26 | 2001-02-13 | Ebara Corp | 失速制御装置 |
US20060283190A1 (en) * | 2005-06-16 | 2006-12-21 | Pratt & Whitney Canada Corp. | Engine status detection with external microphone |
JP4886439B2 (ja) * | 2006-09-08 | 2012-02-29 | 株式会社ミツバ | 音源探査方法および装置 |
WO2009034385A1 (en) * | 2007-09-12 | 2009-03-19 | Bae Systems Plc | Fluid flow monitoring |
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2008
- 2008-09-10 JP JP2008232177A patent/JP5309818B2/ja not_active Expired - Fee Related
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