Title :
Spectral parameters of resonance sound scattering from a circular cylindrical thin elastic shell
Author :
Piddubniak, O.P. ; Piddubniak, N.G.
Author_Institution :
State Univ. Lviv Polytech., Ukraine
fDate :
6/21/1905 12:00:00 AM
Abstract :
The resonance scattering of plane sound waves from a circular cylindrical thin elastic shell with a vacuum inside is investigated. The R-matrix method for suppression of the background contribution in the total form-function and for extraction of the spectral information (positions and widths of the spectral lines) is used. The resonance characteristics of the multipole order m=2 are analyzed in detail. The singularities which permit to distinguish the numerical resonance parameters for sound scattering from cylindrical and spherical elastic shells are discussed
Keywords :
acoustic resonance; acoustic wave scattering; matrix algebra; spectral analysis; R-matrix method; background contribution; circular cylindrical thin elastic shell; extraction; internal vacuum; multipole order; numerical resonance parameters; plane sound waves; resonance characteristics; resonance sound scattering; singularities; spectral information; spectral lines; spectral parameters; spherical elastic shells; total form-function; Acoustic applications; Acoustic scattering; Data mining; Numerical analysis; Polynomials; Resonance; Resonant frequency; Scattering parameters; Surface waves;
Conference_Titel :
Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory, 1999. Proceedings of IVth International Seminar/Workshop
Conference_Location :
Lviv
Print_ISBN :
966-02-0864-2
DOI :
10.1109/DIPED.1999.822149
