Forschungs- & Entwicklungsinformationsdienst der Gemeinschaft - CORDIS

FP5

NORMA Berichtzusammenfassung

Project ID: G3RD-CT-2001-00393
Gefördert unter: FP5-GROWTH
Land: Norway

Computational tool for prediction of structure borne noise in ship hulls

A computational tool has been developed. The tool is based on the waveguide transfer matrix method as well as ordinary acoustical room noise theory. The tool calculates transmission of structureborne noise in ship hulls as well as radiation of airborne noise from the interior joiner elements.

The tool also includes a capability to predict noise reduction from conventional noise reducing measures. It gives a concise ranking of transmission paths, dominating noise sources and the significance of the different joiner elements.

Measurements have been performed onboard two high-speed vessels in order to validate the method. The results proved a good agreement between theory and measurements.

Reported by

DET NORSKE VERITAS AS
VERITASVEIEN 1
300 HOVIK
Norway
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