Systems and methods for controlling an unducted turbofan engine to limit noise. The unducted turbofan engine may include an unducted fan drivingly coupled with a low-pressure turbine and a plurality of unducted outlet guide vanes. The unducted fan may include a plurality of fan blades and a pitch angle of the fan blades may be variable. A pitch angle of the unducted outlet guide vanes may be variable. A controller is configured to control the engine to limit noise based on a noise sensitive condition.
GAS TURBINE ENGINE NOISE REDUCTION
2023-05-18
Patent
Elektronische Ressource
Englisch
IPC: | B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT |
Small turbine engine noise reduction. Volume 2: Noise prediction methods
Tema Archiv | 1973
|Small turbine engine noise reduction. Volume 4. Turboprop engine demonstration tests
Tema Archiv | 1973
|Small turbine engine noise reduction. Volume 1: Executive summary
Tema Archiv | 1973
|