水下无人系统学报2025，Vol.33Issue(1)：150-155,6.DOI:10.11993/j.issn.2096-3920.2024-0105
局部敷设声学覆盖层的圆柱壳体声目标强度分析
Investigation of Acoustic Target Strength of a Cylindrical Shell Partially Covered with Anechoic Coating
马琪 1倪世丰 1耿浩 1杨海滨2
作者信息
- 1. 海装广州局,云南昆明,650011
- 2. 国防科技大学智能科学学院,湖南长沙,410073||国防科技大学装备状态感知与敏捷保障全国重点实验室,湖南长沙,410073
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摘要
Abstract
The primary structural configuration of underwater equipment consists of cylindrical shells.To study the characteristics of the acoustic target strength(TS)of a cylindrical shell partially covered with anechoic coatings,an anechoic coating with an embedded transverse cylindrical cavity was selected for analysis.Based on the Kirchhoff-Helmholtz integral formula,a dimensionality reduction method for acoustic TS of a cylindrical shell partially covered with anechoic coating was established through two-dimensional cylindrical differential element approximation and axial integration with significantly reduced computational complexity.By using this method,the control pattern of the anechoic coating on the acoustic TS of the cylindrical shell was further analyzed.The results show that in the case of a partially coated shell,the acoustic TS can be significantly reduced due to effects such as the sound absorption by the anechoic coating,the coupling resonance between the coating and the shell,and the destructive interference of scattering waves from different regions.Furthermore,optimizing the coated area can enhance the control of acoustic TS,beyond just sound absorption,providing useful references for the engineering design and applications of anechoic coatings.关键词
声学覆盖层/圆柱壳体/声目标强度Key words
anechoic coating/cylindrical shell/acoustic target strength分类
军事科技引用本文复制引用
马琪,倪世丰,耿浩,杨海滨..局部敷设声学覆盖层的圆柱壳体声目标强度分析[J].水下无人系统学报,2025,33(1):150-155,6.
