JP5298033B2 - 少なくとも1つの騒音軽減手段を備えた航空機着陸装置 - Google Patents
少なくとも1つの騒音軽減手段を備えた航空機着陸装置 Download PDFInfo
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- JP5298033B2 JP5298033B2 JP2009554059A JP2009554059A JP5298033B2 JP 5298033 B2 JP5298033 B2 JP 5298033B2 JP 2009554059 A JP2009554059 A JP 2009554059A JP 2009554059 A JP2009554059 A JP 2009554059A JP 5298033 B2 JP5298033 B2 JP 5298033B2
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- Prior art keywords
- landing gear
- noise
- mesh
- reduction means
- noise reduction
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- 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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- 230000009467 reduction Effects 0.000 title claims description 29
- 239000007769 metal material Substances 0.000 claims description 3
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- 238000011144 upstream manufacturing Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
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- 210000001364 upper extremity Anatomy 0.000 description 2
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/02—Undercarriages
- B64C25/08—Undercarriages non-fixed, e.g. jettisonable
- B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
- B64C25/16—Fairings movable in conjunction with undercarriage elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/001—Devices not provided for in the groups B64C25/02 - B64C25/68
- B64C2025/003—Means for reducing landing gear noise, or turbulent flow around it, e.g. landing gear doors used as deflectors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Gears, Cams (AREA)
- General Details Of Gearings (AREA)
- Air-Flow Control Members (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Gear Transmission (AREA)
- Railway Tracks (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Toys (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Description
− 以下に記載するように効果的に騒音を軽減でき、
− 軽量であり、
− さほど嵩高くなく、
− 装着が簡単で、
− 着陸装置の各種構成要素の動作に悪影響を及ぼさない。
− 網の上記の幾何学的(多角形あるいは円形)網目は0.2mmと12.5mmとの間、好ましくは、1.5mmと2mmとの間の寸法(例えば、円形網目の場合は直径、正方形の網目の場合は辺の長さ)を有する。
− 上記の着陸装置は、上記のように、本発明による複数の騒音軽減手段を備える。
− 以下に記載するように効果的に騒音を減少でき、
− それ自体軽量であり、
− さほど嵩高くなく、
− 装着が簡単で、
− 着陸装置(1)の各種構成要素の動作に悪影響を及ぼさない。
− いかなる種類の着陸装置(1)にも適用できる。
− 図1、2、5、6および7に示されているように平らな形状、
− 図3に示されているように、V字型、
− 図4に示されているように湾曲形、
を有しても良い。
Claims (6)
- 2つの位置、即ち上側位置と下側位置との1つに位置させることの出来る航空機の着陸装置であって、この着陸装置(1)の少なくとも1つの構成要素(4)と連携する少なくとも1つの騒音軽減手段(2・3)を備え、
この騒音軽減手段(2・3)が、幾何学的網目(7)を有する別個の網(5・6)からなり、その別個の網(5・6)の部品(8・9)の少なくとも1つは、着陸装置(1)が下側位置にある際、上記の構成要素(4)での空気流(E)の影響によって生じる騒音を軽減するように前記別個の網(5・6)の一方の網(6)が少なくとも1つの構成要素(4)を囲むように配置されていることを特徴とする航空機の着陸装置。 - 上記の網(6)が構成要素(4)のグループ(14)を囲むことを特徴とする請求項1に記載の着陸装置。
- 上記の網(6)が金属製材料から作製されていることを特徴とする請求項1または2に記載の着陸装置。
- 上記の網(5・6)の幾何学的網目(7)が0.2mmと12.5mmとの間の寸法を有することを特徴とする請求項1から3のいずれか1項に記載の着陸装置。
- 複数個の騒音軽減手段(2・3)備えることを特徴とする請求項1から4のいずれか1項に記載の着陸装置。
- 請求項1から5のいずれか1項に記載された着陸装置(1)を備えることを特徴とする航空機。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR07/02128 | 2007-03-23 | ||
FR0702128A FR2913948B1 (fr) | 2007-03-23 | 2007-03-23 | Train d'atterrissage d'avion pourvu d'au moins au moyen de reduction de bruit |
PCT/FR2008/000354 WO2008135647A1 (fr) | 2007-03-23 | 2008-03-18 | Train d'atterrissage d'avion pourvu d'au moins un moyen de réduction de bruit. |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010522110A JP2010522110A (ja) | 2010-07-01 |
JP5298033B2 true JP5298033B2 (ja) | 2013-09-25 |
Family
ID=38658247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009554059A Expired - Fee Related JP5298033B2 (ja) | 2007-03-23 | 2008-03-18 | 少なくとも1つの騒音軽減手段を備えた航空機着陸装置 |
Country Status (10)
Country | Link |
---|---|
US (1) | US8256702B2 (ja) |
EP (1) | EP2129576B1 (ja) |
JP (1) | JP5298033B2 (ja) |
CN (1) | CN101668680B (ja) |
AT (1) | ATE537058T1 (ja) |
BR (1) | BRPI0808275A2 (ja) |
CA (1) | CA2680530C (ja) |
FR (1) | FR2913948B1 (ja) |
RU (1) | RU2418716C1 (ja) |
WO (1) | WO2008135647A1 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2938501B1 (fr) * | 2008-11-14 | 2011-01-21 | Airbus France | Procede pour la reduction du bruit engendre par un orifice place dans un ecoulement gazeux energetique |
JP5185871B2 (ja) * | 2009-03-30 | 2013-04-17 | 一般社団法人日本航空宇宙工業会 | 飛行体の騒音低減方法、飛行体の脚部構造及び飛行体 |
FR2955084B1 (fr) * | 2010-01-12 | 2012-06-08 | Airbus Operations Sas | Aeronef comportant au moins un filet destine a reduire le bruit aerodynamique d'un element structurel dudit aeronef |
FR2961478B1 (fr) | 2010-06-21 | 2012-08-03 | Airbus Operations Sas | Procede d'optimisation aero-acoustique de pieces mecaniques de profile complexe, piece mecanique et train d'atterrissage correspondants |
GB2500070B (en) * | 2012-03-28 | 2015-08-26 | Messier Dowty Ltd | Aircraft landing gear |
GB2514214B (en) * | 2012-09-25 | 2015-04-22 | Messier Dowty Ltd | Aircraft component noise reducing patch |
US9650127B2 (en) * | 2013-03-13 | 2017-05-16 | The United States Of America As Represented By The Administration Of The National Aeronautics And Space Administration | Stretchable mesh for cavity noise reduction |
FR3017106B1 (fr) * | 2014-01-31 | 2017-09-08 | Airbus Operations Sas | Aeronef a train d'atterrissage equipe d'un deflecteur d'air arriere |
WO2015134182A1 (en) * | 2014-03-07 | 2015-09-11 | Gulfstream Aerospace Corporation | Nose landing gear arrangements including a flexible sheet and methods for making the same |
US9290263B2 (en) | 2014-03-07 | 2016-03-22 | Gulfstream Aerospace Corporation | Nose landing gear arrangements and methods for making the same |
US20180105262A1 (en) * | 2017-10-13 | 2018-04-19 | United States Of America As Represented By The Secretary Of The Of The Navy | Aircraft silencing system |
JP6631977B2 (ja) * | 2018-02-26 | 2020-01-15 | 国立研究開発法人宇宙航空研究開発機構 | 騒音低減装置、航空機及び騒音低減方法 |
EP3560826B1 (en) * | 2018-04-25 | 2022-11-30 | Safran Landing Systems UK Ltd | Noise reduction fairing |
CN114462257B (zh) * | 2022-04-11 | 2023-01-31 | 中国空气动力研究与发展中心计算空气动力研究所 | 一种航空飞机起落架舱流动振荡控制方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1341202A (en) * | 1920-04-03 | 1920-05-25 | Strand Neil Alfred | Propeller mud-guard for aeroplanes |
US2685470A (en) * | 1952-09-17 | 1954-08-03 | Frank D Werner | Noise eliminating device for automobile windows |
US2782053A (en) * | 1955-04-04 | 1957-02-19 | Daniel S Long | Splash guard flap for automotive vehicles |
US3934923A (en) * | 1975-03-07 | 1976-01-27 | Aerovironment Inc. | Air decelerator for truck cab |
JP3375357B2 (ja) * | 1993-01-19 | 2003-02-10 | 近畿車輌株式会社 | パンタグラフカバー装置 |
JP3563009B2 (ja) * | 2000-02-21 | 2004-09-08 | 川崎重工業株式会社 | 流体中の物体の共振防止装置およびその方法 |
JP2003219506A (ja) * | 2002-01-22 | 2003-07-31 | Central Japan Railway Co | パンタグラフの騒音低減方法とパンタグラフカバー装置 |
NL1021077C2 (nl) * | 2002-07-15 | 2004-01-16 | Sp Aerospace And Vehicle Syste | Vliegtuig voorzien van geluidsreducerende middelen, alsmede landingsgestel en blaasmiddelen. |
GB0225517D0 (en) * | 2002-11-01 | 2002-12-11 | Airbus Uk Ltd | Landing gear |
WO2004089742A1 (en) * | 2003-04-07 | 2004-10-21 | Airbus Uk Limited | Landing gear |
FR2903381B1 (fr) * | 2006-07-10 | 2008-09-05 | Airbus France Sas | Avion protege contre les projections de debris de pneumatiques |
-
2007
- 2007-03-23 FR FR0702128A patent/FR2913948B1/fr not_active Expired - Fee Related
-
2008
- 2008-03-18 JP JP2009554059A patent/JP5298033B2/ja not_active Expired - Fee Related
- 2008-03-18 CA CA2680530A patent/CA2680530C/fr not_active Expired - Fee Related
- 2008-03-18 EP EP08787808A patent/EP2129576B1/fr not_active Not-in-force
- 2008-03-18 CN CN200880009293.2A patent/CN101668680B/zh not_active Expired - Fee Related
- 2008-03-18 BR BRPI0808275-8A patent/BRPI0808275A2/pt not_active IP Right Cessation
- 2008-03-18 WO PCT/FR2008/000354 patent/WO2008135647A1/fr active Application Filing
- 2008-03-18 US US12/532,387 patent/US8256702B2/en active Active
- 2008-03-18 RU RU2009139088/11A patent/RU2418716C1/ru not_active IP Right Cessation
- 2008-03-18 AT AT08787808T patent/ATE537058T1/de active
Also Published As
Publication number | Publication date |
---|---|
WO2008135647A1 (fr) | 2008-11-13 |
JP2010522110A (ja) | 2010-07-01 |
CN101668680B (zh) | 2013-05-29 |
CA2680530A1 (en) | 2008-11-13 |
BRPI0808275A2 (pt) | 2014-07-22 |
EP2129576A1 (fr) | 2009-12-09 |
US8256702B2 (en) | 2012-09-04 |
CN101668680A (zh) | 2010-03-10 |
ATE537058T1 (de) | 2011-12-15 |
EP2129576B1 (fr) | 2011-12-14 |
CA2680530C (fr) | 2014-10-07 |
US20100108805A1 (en) | 2010-05-06 |
FR2913948B1 (fr) | 2009-04-24 |
FR2913948A1 (fr) | 2008-09-26 |
RU2418716C1 (ru) | 2011-05-20 |
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