The meshing data and modal data of the model in vacuo obtained from FEM code ANSYS are put into BEM code SYSNOISE and used for computing the parameters of the coupled sound field.

• 计算方法是在有限元软件ANSYS中做加肋平底圆柱壳建模、模态分析基础上，将有关数据（网格、模态）导入边界元软件SYSNOISE中计算流体-结构耦合状态下的辐射声场特性。