摘要
在水管路系统中,安装水消声器是降低管路系统辐射噪声有效方法之一。采用SYSNOISE软件,用数值模拟的方法对多种结构形式的水消声器声学性能(传递损失)分别进行了研究。有限元预测的传递损失分别与一维解析解和边界元法的计算结果进行了对比,结果显示,用SYSNOISE分析水消声器声学性能是正确的。
One of the effective solutions to the suppression of noise radiation from the water piping system is to install silencers . The present study employs the numerical simulation software SYSNOISE to investigate the noise attenuation （transmission loss） of water silencers. The FEM predictions of transmission loss are compared with the one-dimensional analytical solutions and boundary element results with the purpose of to verifying the accuracy of FEM for acoustic analysis of water silencers. The effects of various geometryies on the acoustic attenuation of water silencers are examined.
出处
《中国舰船研究》
2007年第6期62-64,77,共4页
Chinese Journal of Ship Research
关键词
水消声器
有限元
传递损失
仿真分析
water silencers
finite element method
transmission loss
simulative anaylsis
