An aeronautical propulsor has a core engine (11), one or more open rotors (23,24) driven by the engine (11), and a nacelle (21) which encloses the core engine (11) and provides an aerodynamic external surface. At least a portion of the external surface of the nacelle (21) is acoustically treated to attenuate noise produced by the open rotors (23,24).
Attenuation of open rotor noise
Schalldämpfung offener Rotoren
Atténuation du bruit d'un rotor ouvert
17.05.2017
Patent
Elektronische Ressource
Englisch
NOISE ATTENUATION FOR AN OPEN ROTOR AIRCRAFT PROPULSION SYSTEM
Europäisches Patentamt | 2017
|Noise attenuation for an open rotor aircraft propulsion system
Europäisches Patentamt | 2017
|NTRS | 2012
|Open rotor broadband interaction noise
Online Contents | 2013
|NASA Open Rotor Noise Research
NTIS | 2010
|