ROUGHNESS IN STEEL BELTED RADIAL TIRES--MEASUREMENT AND ANALYSIS

The roughness performance of sixteen (16) steel-belted radial tires has been studied using high speed uniformity, subjective evaluations, and instrumented vehicle techniques. An analysis of the results indicates that tractive force variation was the principle tire non-uniformity causing roughness in the subject test vehicle, and most probably in a large variety of other 1973 vehicles. This result is due primarily to the fact that the first tractive mode resonance of radial tires (28 Hx) interacts strongly with the principle tansfer function resonances for 1973 vehicles (20-40 Hz). This work has also shown that ride jury ratings correlate well with vehicle instrumentation. /GMRL/

  • Corporate Authors:

    Society of Automotive Engineers

    400 Commonwealth Drive
    Warrendale, PA  USA  15096
  • Authors:
    • Marshall, K D
    • St John, N W
  • Publication Date: 1975-2

Media Info

  • Pagination: 7 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00098957
  • Record Type: Publication
  • Report/Paper Numbers: SAE #750456
  • Files: TRIS
  • Created Date: Oct 18 1975 12:00AM