Bekke, Dirk

English

In the Directive 2001/43 limits are put on the maximum noise level of a pass-by noise measurement on an ISO 10844 surface. This prescribed measurement set-up only gives an LAmax level of the total passage of a whole vehicle equipped with four tires and does not provide enough information for a problem analysis or model validation. Measuring on one tire with (closed or open) CPX-trailers or -cars gives a better insight into tire-road noise. The di culties with these measurement set-ups can be the noise generation of the set-up itself, the acoustics of the trailer-interior or vibrations directly disturbing the microphone signals. A CPX measurement set-up has been developed keeping these considerations in mind in order to be able to do proper problem analysis and model validation

University of Twente Research Information

NAGDAGA2009/564The development of a CPX measurement set-up capable of measuring tire-road noise effectivelyBekke, D.a.Vredestein Banden B.V.bekked@vredestein.comIn the Directive 2001/43 limits are put on the maximum noise level of a pass-by noise measurement on an ISO 10844surface. This prescribed measurement set-up only gives an LAmax level of the total passage of a whole vehicle equippedwith four tires and does not provide enough information for a problem analysis or model validation. Measuring on onetire with (closed or open) CPX-trailers or -cars gives a better insight into tire-road noise. The difficulties with thesemeasurement set-ups can be the noise generation of the set-up itself, the acoustics of the trailer-interior or vibrations di-rectly disturbing the microphone signals. A CPX measurement set-up has been developed keeping these considerationsin mind in order to be able to do proper problem analysis and model validation.Number of words in abstract: 126Keywords:Technical area: Vehicle acousticsSpecial session: Tire-road noisePresentation: Poster presentation (Invited paper)Special equipement: No special equipmentRegistration: 169090620 - Bekke D.A. - 0 0 not paid

The development of a CPX measurement set-up capable of measuring tire-road noise effectively

https://ris.utwente.nl/ws/files/6154727/NAGDAGA_-_2008-333-090916-000564.pdf

The development of a CPX measurement set-up capable of measuring tire-road noise effectively

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University of Twente Research Information