噪声与振动控制2016，Vol.36Issue(5)：90-93,4.DOI:10.3969/j.issn.1006-1335.2016.05.019
船舶舱室声能量分析及预测设计
Acoustic Energy Analysis and Prediction Design of Ship Cabins
黄志武 1叶林昌 1童宗鹏1
作者信息
- 1. 中国船舶重工集团公司 第七一一研究所，上海 201108
- 折叠
摘要
Abstract
An electric propulsion ship with serious noise limitation is studied. Based on the statistical energy analysis (SEA) method, the VA One software is used to calculate the noise of the whole ship. The acoustic energy of the cabins is analyzed and the noise reduction and prediction method is studied. Through the analysis and evaluation of the acoustic energy contribution of the main noise sources, a rational quantitative distribution of the noise reduction is realized. Aiming at the difficulty that the noise of the key cabin exceeds the critical value of 50 dB(A) by 40 dB(A), several innovative technologies, such as the low noise package module of the generator, the hard elastic composite isolation system for the propulsion motor and vibration damping system for the base, are designed and applied. Through analyzing the transfer path of the acoustic energy of the main noise sources, the noise absorption and isolation measures are applied in the path. After the de-noising process, the SPL of the real ship can meet the noise reduction requirements.关键词
声学/统计能量法/噪声评估/声能量分析/降噪优化Key words
acoustics/SEA/noise assessment/acoustic energy analysis/noise reduction optimization分类
建筑与水利引用本文复制引用
黄志武,叶林昌,童宗鹏..船舶舱室声能量分析及预测设计[J].噪声与振动控制,2016,36(5):90-93,4.
