N2 - Applying rigorous analytical methods, formulas describing the sound
radiation have been obtained for the wedge region bounded by two
transverse baffles with a common edge and bottom. It has been assumed that
the surface sound source is located at the bottom. The presented formulas
can be used to calculate the sound pressure and power inside the wedge
region. They are valid for any value of the wedge angle and represent a
generalization of the formulas describing the sound radiation inside the
two and three-wall corner region. Moreover, the presented formulas can be
easily adapted for any case when more than one sound source is located at
the bottom. To demonstrate their practical application, the distribution
of the sound pressure modulus and the sound power have been analyzed in
the case of a rectangular piston located at the wedge’s bottom. The
influence of the transverse baffle on the sound power has been
investigated. Based on the obtained formulas, the behaviour of acoustic
fields inside a wedge can be predicted.
JO - Archives of Acoustics
L1 - http://sd.czasopisma.pan.pl/Content/101386/PDF/09_paper.pdf
L2 - http://sd.czasopisma.pan.pl/Content/101386
IS - No 2
EP - 234
KW - wedge region
KW - sound pressure
KW - sound power
KW - Neumann boundary value problem
KW - Helmholtz equation
KW - vibrating piston
KW - Hankel transform
ER -
A1 - Szemela, Krzysztof
PB - Committee on Acoustics PAS, PAS Institute of Fundamental Technological Research, Polish Acoustical Society
VL - vol. 40
JF - Archives of Acoustics
SP - 223
T1 - Sound Radiation from a Surface Source Located at the Bottom of the Wedge Region
UR - http://sd.czasopisma.pan.pl/dlibra/docmetadata?id=101386
DOI - 10.1515/aoa-2015-0025