A laboratory-based test apparatus was employed to investigate the effects of power-plant placement, engine/nacelle mass installation, and wing-to-fuselage attachment methods on propeller-induced structure-borne noise (SBN) transmission levels and their effects on noise-control measures. Data are presented showing SBN transmission is insensitive to propeller spanwise placement, however some sensitivity is seen in propeller-to-wing spacing. Installation of an engine/nacelle mass and variation in wing-to-fuselage attachments have measurable influences on SBN transmission and control measures.
Installation effects on propeller wake/vortex induced structure-borne noise transmission
1989-04-01
Conference paper
No indication
English
Aircraft propeller induced structure-borne noise
NTRS | 1989
|Aircraft Propeller Induced Structure-Borne Noise
NTIS | 1989
|