为了降低通海管路系统对水动力噪声的影响，本文选取排出口为研究对象，采用仿真软件Ansys Workbench建立几何模型，划分网格，进行声学数值仿真计算。提出排出口结构优化设计思路，分析了不同结构形式的排出口对声学特性的影响，最终得出排出口优化结构。结果表明，在有无外流场条件下，排出口优化结构的声学特性均明显优于其原始结构的声学特性，表明排出口优化结构具有较好的降噪效果。
In order to reduce the influence of hydrodynamic noise for sea opening pipeline system, the discharge port was schosen, the geometric model was established, and the mesh was divided, then the numerical simulation was carried out by Ansys Workbench. The structure optimization idea of discharge port was pointed out. The influence of acoustic characteristics for different discharge ports was analyzed. Finally, the optimal structure for discharge port was obtained. The results indicated that the acoustic characteristics of optimal structure for discharge port were super to the acoustic characteristics of original structure. It showed whether is the condition of outer flow field or not, the optimal structure for discharge port has obvious effect of reducing hydrodynamic noise.
2020,42(7): 54-58 收稿日期：2019-09-17
DOI：10.3404/j.issn.1672-7649.2020.07.011
分类号：U661.42
基金项目：海装综合隐身配套科研项目
作者简介：张生乐(1983-),工程师,研究方向为船舶管路系统振动与噪声控制
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