A study on the Lloyd's mirror effect on the underwater radiated noise for the underwater vehicle

被引：2
|
作者：
Kang, Seung-Hee [1 ]
机构：
[1] Agcy Def Dev, Def Test & Evaluat Res Inst, Jinhae POB 18, Chang Won 51698, Gyeongnam, South Korea
来源：
JOURNAL OF THE ACOUSTICAL SOCIETY OF KOREA | 2021年 / 40卷 / 04期
关键词：
Underwater Radiated Noise (URN); Spectrum level; Lloyd's minor effect; Interference pattern;
D O I：
10.7776/ASK.2021.40.4.314
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The measurement of the Underwater Radiated Noise (URN) for the underwater vehicle should consider both the acoustic interference due to the surface reflection and the calculation of the Closet Point of Approach (CPA). In this paper, I tried to analyze the underwater vehicle's URN using the Lloyd's mirror effect. First, the theoretical Lloyd's mirror pattern was compared with the sea trial result, and the sea trial results corresponded well with the theoretical predicted pattern. And then the CPA distance could be estimated by the Lloyd's mirror pattern. As a results, acoustic source level shows the spectral fluctuation due to the acoustic interference of the Lloyd's mirror effect.
引用
收藏
页码：314 / 319
页数：6
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