Research and modeling of the bistatic acoustic scattering characteristics of novel multi-faceted conning tower

IF 0.3 4区工程技术 Q4 ACOUSTICS

Noise Control Engineering Journal Pub Date : 2022-11-01 DOI:10.3397/1/377044

Zilong Peng, Linjiang Han, Xirui Peng, Yipeng Cheng, D. Ding

{"title":"Research and modeling of the bistatic acoustic scattering characteristics of novel multi-faceted conning tower","authors":"Zilong Peng, Linjiang Han, Xirui Peng, Yipeng Cheng, D. Ding","doi":"10.3397/1/377044","DOIUrl":null,"url":null,"abstract":"The overall acoustic echo of a submarine is greatly dependent on the conning tower. For enhancing the acoustic stealth performance of a submarine, it is necessary to research an innovative design scheme of the conning tower to reduce its bistatic target strength (TS). The aim of this\n work is to reduce the bistatic TS of a conning tower by varying its geometry and streamlining. The accuracy in modeling the acoustic scattering of a conning tower using the Kirchhoff approximation (KA) was validated, compared with finite element analysis. Several angular conning tower geometries\n were designed to analyze the effect of streamlining and the number of lateral facets on TS using the KA method. In consideration of the actual situation, the acoustic effect of backing medium was analyzed by comparing water-filled elastic hulls with rigid hulls. From the observed TS calculation\n results, it is shown that the non-streamlined four lateral-facet conning tower geometries are optimal for acoustic stealth performance during the range of receiving angles from -30 degrees to 30 degrees. Furthermore, elastic hulls and rigid hulls provide similar spatial distribution regularities\n in bistatic configuration with the rigidity affecting the magnitude of the TS.","PeriodicalId":49748,"journal":{"name":"Noise Control Engineering Journal","volume":" ","pages":""},"PeriodicalIF":0.3000,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Noise Control Engineering Journal","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.3397/1/377044","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ACOUSTICS","Score":null,"Total":0}

引用次数: 0

Abstract

The overall acoustic echo of a submarine is greatly dependent on the conning tower. For enhancing the acoustic stealth performance of a submarine, it is necessary to research an innovative design scheme of the conning tower to reduce its bistatic target strength (TS). The aim of this work is to reduce the bistatic TS of a conning tower by varying its geometry and streamlining. The accuracy in modeling the acoustic scattering of a conning tower using the Kirchhoff approximation (KA) was validated, compared with finite element analysis. Several angular conning tower geometries were designed to analyze the effect of streamlining and the number of lateral facets on TS using the KA method. In consideration of the actual situation, the acoustic effect of backing medium was analyzed by comparing water-filled elastic hulls with rigid hulls. From the observed TS calculation results, it is shown that the non-streamlined four lateral-facet conning tower geometries are optimal for acoustic stealth performance during the range of receiving angles from -30 degrees to 30 degrees. Furthermore, elastic hulls and rigid hulls provide similar spatial distribution regularities in bistatic configuration with the rigidity affecting the magnitude of the TS.

查看原文本刊更多论文

新型多面锥形塔双基地声散射特性研究与建模

潜艇的整体声回波很大程度上依赖于指挥塔。为了提高潜艇的声隐身性能，有必要研究一种创新的指挥塔设计方案，以降低其双基地目标强度。这项工作的目的是通过改变其几何形状和流线型来减少康宁塔的双静态TS。通过与有限元分析的比较，验证了利用Kirchhoff近似(KA)模拟康宁塔声散射的准确性。设计了几种不同角度的锥形塔几何形状，利用KA方法分析了流线型和侧面数量对TS的影响。结合实际情况，通过对充水弹性壳体与刚性壳体的对比分析，分析了支承介质的声效应。从观察到的TS计算结果来看，在接收角为-30°~ 30°范围内，非流线型四侧面锥形塔的声隐身性能最优。此外，弹性船体和刚性船体在双基地构型下具有相似的空间分布规律，刚性影响TS的大小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Noise Control Engineering Journal 工程技术-工程：综合

CiteScore

0.90

自引率

25.00%

发文量

审稿时长

3 months

期刊介绍： NCEJ is the pre-eminent academic journal of noise control. It is the International Journal of the Institute of Noise Control Engineering of the USA. It is also produced with the participation and assistance of the Korean Society of Noise and Vibration Engineering (KSNVE). NCEJ reaches noise control professionals around the world, covering over 50 national noise control societies and institutes. INCE encourages you to submit your next paper to NCEJ. Choosing NCEJ: Provides the opportunity to reach a global audience of NCE professionals, academics, and students; Enhances the prestige of your work; Validates your work by formal peer review.