Computation of structure-borne noise propagation in ship structures using noise-FEM

被引:0
|
作者
Cabos, C [1 ]
Jokat, J [1 ]
机构
[1] Strength & Vibrat Dept, D-20459 Hamburg, Germany
关键词
D O I
暂无
中图分类号
U6 [水路运输]; P75 [海洋工程];
学科分类号
0814 ; 081505 ; 0824 ; 082401 ;
摘要
The Noise Finite Element Method (Noise-FEM) allows the computation of structure-borne sound intensity flux through complex ship structures. In case finite-element models for global strength and vibration calculations are available, they can be further used for Noise-FEM analyses. The method can be employed to optimize local structural elements along the main structure-borne sound transmission paths, thereby increasing the structure-borne sound insulation index in the frequency ranges of interest. Applied Noise-FEM results are shown and discussed. By comparing computed and measured structure-borne sound levels, the accuracy is plotted against the octave mid-band frequency, ranging from 31.5 Hz to 8,000 Hz.
引用
收藏
页码:927 / 934
页数:8
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