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

Dirk Bekke, M. Boone (Editor)

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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.
Original languageEnglish
Number of pages1
Publication statusPublished - 23 Mar 2009
Event35. Jahrestagung für Akustik, NAG-DAGA 2009: gemeinsam mit der Nederlands Akoestisch Genootschap (NAG) - Rotterdam, the Netherlands, Rotterdam, Netherlands
Duration: 23 Mar 200926 Mar 2009
Conference number: 35


Conference35. Jahrestagung für Akustik, NAG-DAGA 2009
Abbreviated titleNAG-DAGA
Other23-26 March 2009


  • METIS-285936
  • IR-80253


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