| Resonance acoustic scattering by a porous sphere in elastic medium |
| |
| 作者姓名： | WANGTiehai WANGYaojun |
| |
| 作者单位： | StateKeyLaboratoryofModernAcoustics,NanjingUniversityNanjing210093） |
| |
| 基金项目： | National Natural Science Foundation of China(10174037) |
| |
| 摘 要： | The acoustic resonance scattering spectrum of a porous sphere embedded in an elastic matrix is studied based on the resonance scattering theory (RST) proposed by Flax et al. Taking nodular cast iron as an example, some numerical computations are made for acoustic backscattering and resonance scattering spectra of certain partial waves. The change of acoustic resonance frequencies of different modes as a function of the porosity of porous spherical scatterers is also simulated.
|
| 关 键 词： | 声共振散射 弹性介质 多孔介质 共振频率 弹性矩阵 反向散射谱 |
| 本文献已被 CNKI 维普 等数据库收录！ |
