圆柱薄弹性壳共振声散射的频谱参数

DIPED - 99. Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory. Proceedings of 4th International Seminar/Workshop (IEEE Cat. No.99TH8402) Pub Date : 1900-01-01 DOI:10.1109/DIPED.1999.822149

O. Piddubniak, N. Piddubniak

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引用次数: 0

摘要

研究了平面声波在带真空的圆柱薄弹性壳中的共振散射。采用r矩阵法抑制总形式函数中的背景贡献，提取光谱信息(光谱线的位置和宽度)。详细分析了多极次m=2的谐振特性。讨论了区分圆柱弹壳和球面弹壳声散射数值共振参数的奇异性。

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Spectral parameters of resonance sound scattering from a circular cylindrical thin elastic shell

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.

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来源期刊

DIPED - 99. Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory. Proceedings of 4th International Seminar/Workshop (IEEE Cat. No.99TH8402)

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