Acoustic wind tunnel tests were conducted to examine the noise-generating processes of an airframe during approach flight. The airframe model was a two-dimensional wing section, to which highlift leading and trailing edge devices and landing gear could be added. Far field conventional microphones were utilized to determine component spectrum levels. An acoustic mirror directional microphone was utilized to examine noise source distributions on airframe components extended separately and in combination. Measured quantities are compared with predictions inferred from aircraft flyover data. Aeroacoustic mechanisms for each airframe component are identified. (Posamentier)
Airframe noise component interaction studies
Zusammenwirkung verschiedener Komponenten bei der Entwicklung von Geraeuschen in der Flugzeughalle
AIAA-Papers ; 1-11
1979
11 Seiten, 16 Bilder, 18 Quellen
Conference paper
English
Airframe noise component interaction studies
NTRS | 1979
|Airframe noise component interaction studies
AIAA | 1979
|Airframe Noise Component Interaction Studies
AIAA | 1980
|Airframe noise component interaction studies
NTRS | 1979
|Airframe noise component interaction studies
TIBKAT | 1979
|