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Descripción
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| Traffic noise models are used to predict transmitted noise levels that are taken into account, for instance, in noise mapping and legislation. These models are coupled with a propagation method to calculate the radiated noise to the receiver positions. However, although it has been shown that the traffic noise annoyance is highly correlated with the Maximum Noise Levels produced by noisy drivers, the predictions are made considering an overall assessment, without making the distinction between quiet and noisy drivers. In this work, an on-board acquisition system has been designed for the detections of the vehicles responsible of maximum radiation levels. It is composed of two near-field microphones for the on-line acquisition of the rolling noise and the power-train noise. We have developed a methodology for the noise propagation to the far-field positions combining analytical descriptions, for the consideration of the absorbing properties of the propagating floors, and experimental measurements to characterise the properties of the engine hood. The extrapolated noise levels are then calculated considering the geometrical spreading term, the absorption by the air and the ground interaction. The predictions are compared with experimental pass-by measurements performed with different vehicles at different velocities. | |
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Internacional
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Si |
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Nombre congreso
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Internoise 2013 |
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Tipo de participación
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960 |
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Lugar del congreso
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Innsbruck, Austria |
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Revisores
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Si |
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ISBN o ISSN
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9781632662675 |
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DOI
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Fecha inicio congreso
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15/09/2013 |
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Fecha fin congreso
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18/09/2013 |
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Desde la página
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1 |
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Hasta la página
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8 |
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Título de las actas
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Proccedings of internoise: Noise control for quality of life |