VA One在舱室噪声预报中的应用  

Application of VA One in Ship Cabin Noise Prediction

作　　者：郭云松[1] 丁炜[1] 周相荣[1] 蒋维钢 GUO Yun-song;DING Wei;ZHOU Xiang-rong;JIANG Wei-gang(704 Institute of CSIC, Shanghai 200031, China;Henkel (China) Company Limited, Shanghai 201203, China)

机构地区：[1]中国船舶重工集团公司第七〇四研究所,上海200031 [2]汉高(中国)股份有限公司,上海201203

出　　处：《噪声与振动控制》2017年第4期100-104,共5页Noise and Vibration Control

摘　　要：介绍统计能量法的基本理论,并以某科考船为分析对象,利用VA One软件进行舱室噪声预报,分析声学材料、阻尼材料及空调噪声对舱室噪声的影响。结果发现:添加声学材料后,舱室噪声下降显著;3种阻尼方案总体上来说对舱室噪声影响差别不大,但从重量方面考虑,方案二优于其它2种;选用具有良好降噪效果的布风器,可减小空调噪声对上层建筑舱室噪声的影响。The basic theory of Statistical Energy Analysis(SEA)is introduced.The VA One software is used to predict the cabin noise of a ship.The influences of acoustics material,damping material and air-conditioning noise on the cabin noise are analyzed.The results show that the cabin noise of the ship is reduced evidently when the acoustics materials are added.The effects of three different damping schemes for the ship cabin noise reduction are nearly the same.But in the point of view of the weight of the damping material,scheme2is better than the other two.By selecting the air diffuser with high noise reduction effect,the influence of air conditioning noise on the superstructure noise level can be greatly reduced.

关 键 词：声学 VAOne 统计能量法 舱室噪声 阻尼材料 空调噪声 

分 类 号：U66[交通运输工程—船舶及航道工程]