JP2019148266A5 - - Google Patents

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Publication number
JP2019148266A5
JP2019148266A5 JP2018031578A JP2018031578A JP2019148266A5 JP 2019148266 A5 JP2019148266 A5 JP 2019148266A5 JP 2018031578 A JP2018031578 A JP 2018031578A JP 2018031578 A JP2018031578 A JP 2018031578A JP 2019148266 A5 JP2019148266 A5 JP 2019148266A5
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JP
Japan
Prior art keywords
perforated plate
noise reduction
fluid
reduction device
flow
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.)
Granted
Application number
JP2018031578A
Other languages
English (en)
Japanese (ja)
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JP6631977B2 (ja
JP2019148266A (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP2018031578A priority Critical patent/JP6631977B2/ja
Priority claimed from JP2018031578A external-priority patent/JP6631977B2/ja
Priority to PCT/JP2019/002065 priority patent/WO2019163379A1/ja
Priority to EP19756790.2A priority patent/EP3760882B1/en
Priority to US16/976,020 priority patent/US11577823B2/en
Publication of JP2019148266A publication Critical patent/JP2019148266A/ja
Publication of JP2019148266A5 publication Critical patent/JP2019148266A5/ja
Application granted granted Critical
Publication of JP6631977B2 publication Critical patent/JP6631977B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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JP2018031578A 2018-02-26 2018-02-26 騒音低減装置、航空機及び騒音低減方法 Active JP6631977B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2018031578A JP6631977B2 (ja) 2018-02-26 2018-02-26 騒音低減装置、航空機及び騒音低減方法
PCT/JP2019/002065 WO2019163379A1 (ja) 2018-02-26 2019-01-23 騒音低減装置、航空機及び騒音低減方法
EP19756790.2A EP3760882B1 (en) 2018-02-26 2019-01-23 Noise reducing device, aircraft, and noise reduction method
US16/976,020 US11577823B2 (en) 2018-02-26 2019-01-23 Noise reduction apparatus, aircraft, and noise reduction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018031578A JP6631977B2 (ja) 2018-02-26 2018-02-26 騒音低減装置、航空機及び騒音低減方法

Publications (3)

Publication Number Publication Date
JP2019148266A JP2019148266A (ja) 2019-09-05
JP2019148266A5 true JP2019148266A5 (enExample) 2019-10-17
JP6631977B2 JP6631977B2 (ja) 2020-01-15

Family

ID=67687630

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2018031578A Active JP6631977B2 (ja) 2018-02-26 2018-02-26 騒音低減装置、航空機及び騒音低減方法

Country Status (4)

Country Link
US (1) US11577823B2 (enExample)
EP (1) EP3760882B1 (enExample)
JP (1) JP6631977B2 (enExample)
WO (1) WO2019163379A1 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11485471B2 (en) * 2017-08-25 2022-11-01 United States Of America As Represented By The Administrator Of Nasa Application of leading edge serration and trailing edge foam for undercarriage wheel cavity noise reduction
EP3560826B1 (en) * 2018-04-25 2022-11-30 Safran Landing Systems UK Ltd Noise reduction fairing
DE102020128400B3 (de) * 2020-10-28 2022-01-27 Airbus Defence and Space GmbH Strömungskörper für ein Fahrzeug und Verfahren zum Herstellen eines Strömungskörpers
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
GB2633083A (en) * 2023-09-01 2025-03-05 Safran Landing Systems Uk Ltd Aircraft landing gear assembly
GB2638447A (en) * 2024-02-23 2025-08-27 Safran Landing Systems Uk Ltd Aircraft Landing Gear Assembly

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
GB0225517D0 (en) 2002-11-01 2002-12-11 Airbus Uk Ltd Landing gear
EP1753656B1 (en) 2004-03-29 2013-05-08 Goodrich Corporation Landing gear noise attenuation
FR2913948B1 (fr) * 2007-03-23 2009-04-24 Airbus France Sas Train d'atterrissage d'avion pourvu d'au moins au moyen de reduction de bruit
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
SE535926C2 (sv) * 2011-05-05 2013-02-19 Scania Cv Ab Anordning för dämpning av ljud och motorfordon innefattande en sådan anordning
GB2494219B (en) * 2012-02-06 2013-10-16 Messier Dowty Ltd A fairing
US9487289B2 (en) * 2013-03-15 2016-11-08 Bae Systems Plc Cavity acoustic tones suppression

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