摘要
吸声和隔声是声学设计中常用的两种噪声控制方法。针对受声舱和声源舱相邻的典型舱室分布,首先对受声舱和声源舱进行了隔声和吸声设计,接着运用声振分析软件VA One建立了舱室和声学处理措施的统计能量分析模型,通过仿真计算得到了隔声、吸声两种声学处理措施的声学收益。为了验证仿真计算结果,进行了模型试验。通过比较计算值和测试值结果发现,两者随频率变化的趋势比较一致,且计算值最大误差为2.4dB,表明统计能量分析法可用于舰船舱室声学设计。
The main objective of this paper is to present an application of statistical energy analysis in shipboard airborne noise control.First,in order to reduce the airborne noise level of sound receiving room and source room,sound absorption and insulation materials were used.Than an exact SEA model with cabins and noise control treatments was built and solved with the help of software VA One.In addition,a model test was carried out to verify the numerical simulation.It’s found that the largest error was 2.4dB.The effectiveness of the present method was illustrated by the comparison between the predictive value and the actual measurement.
作者
范明伟
祝玉梅
陈雯
闫晓丰
FAN Ming-wei;ZHU Yu-mei;CHEN Wen;YAN Xiao-feng(China Ship Development and Design Center,Wuhan 430063,China)
出处
《声学技术》
CSCD
2014年第S01期59-63,共5页
Technical Acoustics
关键词
统计能量分析法
吸声
隔声
声学设计
statistical energy analysis
sound absorption
sound insulation
airborne noise control
