Noise Reduction Design for Landing Gear toward FQUROH Flight Demonstration

2017 ◽  
Author(s):  
Takehisa Takaishi ◽  
Takeshi Inoue ◽  
Hung-Huei Lee ◽  
Mitsuhiro Murayama ◽  
Yuzuru Yokokawa ◽  
...  
Keyword(s):  
Noise Reduction ◽  
Landing Gear

scholarly journals 1002 Aerodynamic noise reduction for aircraft landing gear

2009 ◽  
Vol 2009 (0) ◽  
pp. 321-322
Author(s):  
Kazuhide Isotani ◽  
Kenji Hayama ◽  
Akio Ochi ◽  
Toshiyuki Kumada
Keyword(s):  
Noise Reduction ◽  
Landing Gear ◽  
Aerodynamic Noise ◽  
Aircraft Landing ◽  
Aircraft Landing Gear

Noise Reduction of Regional Jet Two-Wheel Main Landing Gear

2019 ◽  
Author(s):  
Yasushi Ito ◽  
Yuzuru Yokokawa ◽  
Takehisa Takaishi ◽  
Kazuomi Yamamoto ◽  
Tohru Hirai ◽  
...  
Keyword(s):  
Noise Reduction ◽  
Landing Gear

Noise reduction technologies for aircraft landing gear-A bibliographic review

2020 ◽  
Vol 112 ◽  
pp. 100589 ◽  
Author(s):  
Kun Zhao ◽  
Patrick Okolo ◽  
Eleonora Neri ◽  
Peng Chen ◽  
John Kennedy ◽  
...  
Keyword(s):  
Noise Reduction ◽  
Landing Gear ◽  
Aircraft Landing ◽  
Aircraft Landing Gear

Numerical Simulation of Main Landing Gear Noise Reduction in FQUROH Flight Demonstration

2019 ◽  
Author(s):  
Mitsuhiro Murayama ◽  
Takehisa Takaishi ◽  
Yasushi Ito ◽  
Yuzuru Yokokawa ◽  
Kazuomi Yamamoto ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Noise Reduction ◽  
Landing Gear ◽  
Gear Noise ◽  
Landing Gear Noise

Assessment of Conceptual Noise Reduction Devices for A Main Landing Gear using SNGR Method

2015 ◽  
Author(s):  
Huadong Yao ◽  
Lars Davidson ◽  
Shia-Hui Peng ◽  
Francesco Capizzano ◽  
Mattia Barbarino ◽  
...  
Keyword(s):  
Noise Reduction ◽  
Landing Gear

scholarly journals Aeroacoustic Source Separation on a Full Scale Nose Landing Gear Featuring Combinations of Low Noise Technologies

2015 ◽  
Author(s):  
Eleonora Neri ◽  
John Kennedy ◽  
Gareth J. Bennett
Keyword(s):  
Noise Reduction ◽  
Low Noise ◽  
Landing Gear ◽  
Full Scale ◽  
Commercial Aircraft ◽  
Noise Sources ◽  
Gear Noise ◽  
Aircraft Landing ◽  
Total Noise ◽  
Landing Gear Noise

The reduction of noise generated by aircraft at take-off and approach is crucial in the design of new commercial aircraft. Landing gear noise is significant contribution to the total noise sources during approach. The noise is generated by the interaction between the non-aerodynamic components of the landing gear and the flow, which leads to turbulence generated noise. This research presents results from the European Clean Sky funded ALLEGRA project. The project investigated a full-scale Nose Landing Gear (NLG) model featuring the belly fuselage, bay cavity and hydraulic dressing. A number of low noise treatments were applied to the NLG model including a ramp door spoiler, a wheel axel wind shield, wheel hub caps and perforated fairings. Over 250 far field sensors were deployed in a number of microphone arrays. Since technologies were tested both in isolation and in combination the additive effects of the technologies can be assessed. This study describes the different techniques used to quantify the contribution of each technology to the global noise reduction. The noise reduction technologies will be assessed as a function of frequency range and through beamforming techniques such as source deletion.

Mesh Screen Application for Noise Reduction of Landing Gear Strut

2016 ◽  
Author(s):  
Patrick N. Okolo ◽  
Kun Zhao ◽  
John Kennedy ◽  
Gareth J. Bennett
Keyword(s):  
Noise Reduction ◽  
Landing Gear ◽  
Mesh Screen
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