围壳结构是最重要的突出结构,其噪声水平关乎水下航行器的使用效果。本文通过有限元结合边界元数值计算的方法,对多种围壳结构不同条件下的典型流激围壳辐射噪声进行理论数值仿真研究,研究结果表明,不同航速和不同结构下的流激围壳辐射噪声特性存在一定差异,为围壳结构的线型设计及实际操纵提供重要的理论依据,具有一定的工程应用价值。
The sail is the most important and conspicuous structure of a submarine, the noise level of which may strongly influence the usage of the sub. Numerical modeling on flow-induce noise to the sail was done towards several diverse circumstances based on FEM and BEM methods, the results indicate that differences do exist within different voyage ways and different structures, evidences are following provided for further sail design and practical operation.
2016,38(6): 154-157 收稿日期：2016-05-10
DOI：10.3404/j.issn.1672-7619.2016.06.032
分类号：U661.3
作者简介：许际波(1976-),男,工程师,研究方向为信号处理及信息检索。
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