Modelo de Identificación de Fuentes Sonoras. Aplicación al Ruido del Motor de un Automóvil

M. D. Redel Macías, D. Berckmans, A. J. Cubero Atienza

Resumen

La Directiva 49/2002/CE de la UE obliga a los fabricantes de vehículos a certificar las emisiones de ruido al exterior, estableciendo importantes restricciones al respecto. Por lo tanto, resulta imperativo establecer modelos que identifiquen las fuentes de ruido en un vehículo, así como la exactitud de los mismos. En este artículo se presenta un modelo de identificación de fuentes sonoras para el estudio y caracterización del ruido del motor en vehículos. El ruido es experimentalmente caracterizado mediante la técnica de substitución de monopolos adaptado al método general de síntesis de sonido. La técnica de identificación resultante se ilustra mediante varios casos en estudio variando el número de monopolos y la posición del receptor, determinando la precisión del sistema en cada caso.Los resultados indican que el error cometido en el caso más desfavorable es inferior a 15 dB.

Palabras clave

Síntesis de sonido; Identificación; Loudness; Calidad del Sonido; ASQ

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Universitat Politècnica de València     https://doi.org/10.4995/riai

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