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

来源：

PRACTICAL DESIGN OF SHIPS AND MOBILE UNITS | 1998年 / 11卷

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

页码：927 / 934

页数：8

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