AIRCRAFT WITH CABIN ACOUSTIC SYSTEMS HAVING QUARTER WAVELENGTH ABSORBERS

AIRCRAFT WITH CABIN ACOUSTIC SYSTEMS HAVING QUARTER WAVELENGTH ABSORBERS

An aircraft includes a fuselage, a cabin surface, and a first chamber. The cabin surface is disposed within the fuselage and defines a first aperture and at least part of a cabin air mass having a first acoustic mode. The first chamber is acoustically coupled with the aperture and has a length that...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Brinley Michael, Wang Tongan, Conti Paul
Format: Patent
Sprache:eng
Schlagworte:
AEROPLANES
AIRCRAFT
AVIATION
COSMONAUTICS
HELICOPTERS
PERFORMING OPERATIONS
TRANSPORTING
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Beschreibung
Zusammenfassung:An aircraft includes a fuselage, a cabin surface, and a first chamber. The cabin surface is disposed within the fuselage and defines a first aperture and at least part of a cabin air mass having a first acoustic mode. The first chamber is acoustically coupled with the aperture and has a length that is one quarter of a wavelength of sound at the first acoustic mode.