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Shielding of rotor noise by plates and wings
OAI: oai:purehost.bath.ac.uk:openaire_cris_publications/b5f134aa-c281-4d1d-b2fd-c265c8ce3795 • DOI: https://doi.org/10.1051/aacus/2022022
Abstract
A method of noise reduction proposed for the next generation of aircraft is to shield noise from the propulsion system, by positioning the noise source over a wing or another surface. In this
paper, an approximate analysis is developed for the acoustic field
far from a circular source placed near the edge of a semi-infinite
plate, a model problem for shielding of noise by a wing and for
scattering by a trailing edge. The approximation is developed for a
source of small radius and is found to be accurate when compared to full numerical evaluation of the field.
paper, an approximate analysis is developed for the acoustic field
far from a circular source placed near the edge of a semi-infinite
plate, a model problem for shielding of noise by a wing and for
scattering by a trailing edge. The approximation is developed for a
source of small radius and is found to be accurate when compared to full numerical evaluation of the field.
Noise shielding Rotor noise SCATTERING Trailing edge /dk/atira/pure/subjectarea/asjc/3100/3102 name=Acoustics and Ultrasonics /dk/atira/pure/subjectarea/asjc/1700/1706 name=Computer Science Applications /dk/atira/pure/subjectarea/asjc/3600/3616 name=Speech and Hearing /dk/atira/pure/subjectarea/asjc/2200/2208 name=Electrical and Electronic Engineering