Forschungs- & Entwicklungsinformationsdienst der Gemeinschaft - CORDIS

FP5

RATIN Berichtzusammenfassung

Project ID: G3RD-CT-2000-00097
Gefördert unter: FP5-GROWTH
Land: Belgium

Road and tyre interaction noise: New software module

To face the requirements related to building tyre noise radiation models, Free Field Technologies has extended the infinite element method implemented in its ACTRAN general purpose acoustic simulation software.

Among the numerous improvements developed in the context of RATIN and made available to all current and future users of ACTRAN are:
- A stabilized interpolation scheme removing any limit on the radial interpolation order of the infinite elements;

- A time-domain version of the infinite element library complementing the frequency domain implementation;

- The correct and automatic handling of absorption on infinite surfaces;

- Simulation of convected wave propagation (propagation in moving fluids).

The new infinite element module of ACTRAN is obviously well applicable to tyre noise radiation but also found applications in numerous other domains of acoustic design like: aircraft engine noise modelling, power train radiation analysis, loudspeaker design ans more.

Reported by

FREE FIELD TECHNOLOGIES
16 PLACE DE L'UNIVERSITE
1348 LOUVAIN-LA-NEUVE
Belgium
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