Comparison of Two Measurement Methods for Exterior Noise Radiation Characterization of a Loaded Rotating Tyre

Paper #:
  • 2015-01-2197

Published:
  • 2015-06-15
DOI:
  • 10.4271/2015-01-2197
Citation:
Vercammen, S., Bianciardi, F., Kindt, P., Desmet, W. et al., "Comparison of Two Measurement Methods for Exterior Noise Radiation Characterization of a Loaded Rotating Tyre," SAE Technical Paper 2015-01-2197, 2015, doi:10.4271/2015-01-2197.
Pages:
11
Abstract:
In the context of the reduction of traffic-related noise the research reported in this paper provides tools that could be used to develop low noise tyres.Two measurement techniques have been analyzed for exterior noise radiation characterization of a loaded rotating slick tyre on a rough road surface.On one hand sound pressure measurements at low spatial resolution with strategically placed microphones on a half-hemisphere around the tyre/road contact point have been performed. This technique provides a robust solution to compute the (overall) sound power level.On the other hand sound intensity measurements at high spatial resolution by means of a scanning intensity probe have been performed. This technique allows a more detailed spatial visualization of the noise radiation and helps in getting more insight and better understanding of the acoustical phenomena.
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