CAJ | 학술논문

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。
흡성화격성시성학설계중상용적량충조성공제방법。침대수성창화성원창상린적전형창실분포，수선대수성창화성원창진행료격성화흡성설계，접착운용성진분석연건 VA One 건립료창실화성학처리조시적통계능량분석모형，통과방진계산득도료격성、흡성량충성학처리조시적성학수익。위료험증방진계산결과，진행료모형시험。통과비교계산치화측시치결과발현，량자수빈솔변화적추세비교일치，차계산치최대오차위2.4dB，표명통계능량분석법가용우함선창실성학설계。
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 in-sulation 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.