Numerical and physical concepts in ray-tracing method, applied to the prediction of vehicle noise radiation

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Unité de recherche

INNOSUISSE

Numéro de projet

7294.1;7 EPRP-IW

Titre du projet

Numerical and physical concepts in ray-tracing method, applied to the prediction of vehicle noise radiation

Titre du projet anglais

Numerical and physical concepts in ray-tracing method, applied to the prediction of vehicle noise radiation

Textes relatifs à ce projet

	Allemand	Français	Italien	Anglais
Description succincte	-	-	-
Résumé des résultats (Abstract)	-	-	-

Textes saisis

Catégorie	Texte
Description succincte (Anglais)	Numerical and physical concepts in ray-tracing method, applied to the prediction of vehicle noise radiation
Résumé des résultats (Abstract) (Anglais)	Mastering the acoustic radiation of engine compartments requires controlling variable parameters like location and quality of absorbent materials on the inside walls. Such procedure requires a) predictive schemes and b) material knowledge.a) For the acoustic prediction in mid-frequency range, the ray method could be adequate provided it is modified to be more rigorous in managing the wave reflections.b) Material modelling is the first required activity in complement to material characterization, for providing boundary conditions to noise simulation.

Catégorie

Texte

Description succincte
(Anglais)

Numerical and physical concepts in ray-tracing method, applied to the prediction of vehicle noise radiation

Résumé des résultats (Abstract)
(Anglais)

Mastering the acoustic radiation of engine compartments requires controlling variable parameters like location and quality of absorbent materials on the inside walls. Such procedure requires a) predictive schemes and b) material knowledge.a) For the acoustic prediction in mid-frequency range, the ray method could be adequate provided it is modified to be more rigorous in managing the wave reflections.b) Material modelling is the first required activity in complement to material characterization, for providing boundary conditions to noise simulation.