基于声固耦合的水下复杂目标声散射研究

周 烨; 温 玮; 韩建辉; 杨日杰

doi:10.11993/j.issn.2096-3920.2020.01.008

基于声固耦合的水下复杂目标声散射研究

doi: 10.11993/j.issn.2096-3920.2020.01.008

海军航空大学战勤学院, 山东烟台, 264001

基金项目: 山东省重点研发计划项目资助(2016CYJS02A01)

详细信息

作者简介:
周烨(1995-), 男, 在读硕士, 主要研究方向为水声信号检测、处理与融合技术.

中图分类号: TJ630.34; TB566
计量
- 文章访问数: 417
- HTML全文浏览量: 2
- PDF下载量: 842
- 被引次数: 0
出版历程
- 收稿日期: 2019-06-12
- 修回日期: 2019-06-29
- 刊出日期: 2020-02-29

Research on Acoustic Scattering of Underwater Complicated Target Based on Sound-Solid Coupling

Air Combat Service College, Naval Aviation University, Yantai 264001, China

摘要

摘要: 针对现有简单模型对水下实际目标的仿真逼真度较差的情况, 利用COMSOL声固耦合算法以及完全匹配层对二维潜艇简单模型受激励后的散射声场进行了数值仿真分析。利用ANSYS有限元分析软件对相同简化模型进行计算对比, 计算结果基本吻合, 验证了COMSOL在计算大型目标散射声场时的有效性。最后以某型潜艇结构为原型构建了内部舱室结构及结构材料属性, 提高了模型相对于实际目标的逼真度, 仿真了受激励后的再辐射声场。其结果可对水下主动探测装备发展提供参考。
- 潜艇 /
- 散射声场 /
- 声固耦合 /
- 完全匹配层
Abstract: In view of the low simulation fidelity of the existing simple model for actual underwater target, the scattered acoustic field of the two-dimensional simple model of submarine after excitation is simulated numerically by using the COMSOL sound-solid coupling algorithm and the perfectly matched layer(PML). The result is compared with that of the same model calculated by using the finite element analysis software ANSYS, and both results are basically consistent, verifying the effectiveness of the COMSOL sound-solid coupling algorithm in calculating the scattered acoustic field of large target. Furthermore, the interior cabin structure and its structural material attributes are established for a submarine structure, which improves the fidelity of the model to the actual target, and the sound field of re-radiation after excitation is simulated. The simulation results may be taken as a reference for the numerical analysis of active sonar signals and the development of underwater active detection equipment.
- submarine /
- scattered acoustic field /
- sound-solid coupling /
- perfectly matched layer(PML)

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参考文献(13)

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