噪声与振动控制2025，Vol.45Issue(2)：293-297,5.DOI:10.3969/j.issn.1006-1355.2025.02.046
某舰船睡眠舱室通风口降噪设计
Noise Control Design for Vents in a Ship Accommodation Cabin
刘李娜 1梁乐 2缪振菁 2黄煜2
作者信息
- 1. 中国人民解放军海军特色医学中心,上海 200433
- 2. 上海交通大学 机械与动力工程学院 振动、冲击、噪声研究所,上海 200240
- 折叠
摘要
Abstract
Noise in the vessel cabin directly affects the sailor's life and work efficiency.In this work,the noise at the sleeping position inside the accommodation cabin was measured in the time period of 5:00-24:00,and the worse energy bands of typical noise signals were determined.The measurement results show that the equivalent continuous A-weighted sound pressure level ranges from 75 dB(A)to 110 dB(A),and the frequency band was concentrated in the range of 400-1 000 Hz,and the 1/3 octave noise energy with 500 Hz as the centre frequency was the dominant.According to these results,a light and thin acoustic absorption structure with an extended-tube liner was designed with the thickness less than 30mm,the maximum acoustic absorption coefficient of 0.87,and a sound transmission loss of 17.7 dB at the centre frequency of 500 Hz.关键词
声学/舰船噪声/舱内噪声/延长管吸声结构Key words
acoustics/ship cabin noise/internal noise of cabin/extended-tube acoustic absorption structure分类
交通运输引用本文复制引用
刘李娜,梁乐,缪振菁,黄煜..某舰船睡眠舱室通风口降噪设计[J].噪声与振动控制,2025,45(2):293-297,5.
