SELECTION OF EVALUATION PARAMETERS FOR ROAD TRAFFIC NOISE FOR THE HIGHER VEHICLE SPEED RANGES

In the higher speed range, the disturbing components of automobile noise are caused predominantly by tire-road noise. The total driveby noise (engine plus tire-road noise) may be separated into spectral portions above 500 Hz caused by tire-road interaction and portions below 500 Hz, caused mainly by the engine and vibrations of the remaining portions of the moving vehicle. The main cause of tire-road noise contributing to the spectrum above 500 Hz is due to the radial deformation kinematics of the tire on the underlying surface (road) along with the secondary effect (frequency shift) caused by the cross-oriented tire treads. Minimizing of the road surface texture depth does not yield an important reduction of tire-road noise, if one excludes a systematic, cross-grooved road surface as for example the above-mentioned grooved concrete road.

Media Info

  • Pagination: p. 815-822

Subject/Index Terms

Filing Info

  • Accession Number: 00193836
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: Conf Paper
  • Files: TRIS
  • Created Date: May 26 1979 12:00AM