11.4万吨油船全频段舱室噪声预报分析  

Prediction and Analysis of Cabin Noise of an 114000 t Crude Oil Tanker

作　　者：吴晨飞 瞿小凌 付佳 WU Chenfei;QU Xiaoling;FU Jia(ShanghaiWaigaoqiao Shipbuilding Co.,Ltd.,Shanghai 200137,China)

机构地区：[1]上海外高桥造船有限公司,上海200137

出　　处：《噪声与振动控制》2021年第2期179-183,205,共6页Noise and Vibration Control

摘　　要：以11.4万吨阿芙拉油船为研究对象,运用VA One噪声分析软件在63 Hz~8 000 Hz频段开展油船舱室噪声预报分析研究。根据模型平板和声腔子系统的模态数,将求解频段划分为高频段和中频段,采用统计能量分析方法(SEA)和混合法(Hybrid FE-SEA)预报计算各频段舱室噪声。结果表明,大部分舱室的噪声预报值都符合MSC.337(91)的限值要求。针对不符合规范要求的舱室,分析噪声超标原因并提出相应降噪措施,使油船所有舱室噪声预报值均满足规范要求。Prediction of cabin noise of an 114000 t crude oil tanker is discussed.The noise analysis software VA One is used to carry out the prediction and analysis of the cabin noise in the frequency domain of 63 Hz-8000 Hz.According to the modal number of the model plate and acoustic cavity subsystem,the frequency band is divided into high frequency band and medium frequency band.Statistic Energy Analysis(SEA)method and hybrid FE-SEA method are used to predict the cabin noise in each frequency band.The results show that most prediction values of the cabin noise level meet the requirements of the limit values in MSC.337(91)standard.For the cabins whose noise levels do not meet the requirement of the standard,the causes of overlarge noise are analyzed and the corresponding noise reduction measures are put forward.

关 键 词：声学 船舶 舱室噪声预报 统计能量法 混合法 降噪 

分 类 号：TB533.2[理学—物理]