THE VERTICAL RESPONSE CHARACTERISTICS OF THE NON-ROLLING TIRE

DUE TO THE COMPLEXITY OF THE DYNAMIC BEHAVIOR OF THE PNEUMATIC TIRE, A PRELIMINARY STUDY IS CARRIED OUT TO DETERMINE EXPERIMENTALLY THE VERTICAL RESPONSE CHARACTERISTICS OF THE NON-ROLLING TIRE. THIS APPROACH IS FURTHER JUSTIFIED BECAUSE OF THE GENERAL USE OF THE LABORATORY ROAD SIMULATOR IN WHICH THE EXCITATION IS THROUGH A NON-ROLLING TIRE. A MEASUREMENT TECHNIQUE BASED ON THE CONCEPT OF MOBILITY IS USED TO SHOW THAT THE TIRE EXHIBITS A FUNDAMENTAL RIGID BODY MODE AS WELL AS HIGHER TREAD FLEXURAL MODES OF VIBRATION. COMPARISONS ARE MADE BETWEEN THE BEHAVIOR OF A CROSS-PLY AND RADIAL-PLY TIRE OVER A RANGE OF PRESSURE LEVELS. THE RESULTS SHOW THAT THERE ARE MARKED DIFFERENCES BETWEEN THE TWO TYPES BOTH IN THE CHARACTER OF THE RESPONSE AND THE LEVEL OF DAMPING. THE COMMONLY USED MATHEMATICAL MODEL TO REPRESENT THE FUNDAMENTAL MODE IS INADEQATE. A VISCOELASTIC MODEL IS PROPOSED TO DESCRIBE THIS MODE OF VIBRATION, WHICH INCLUDES FREQUENCY-DEPENDENT STIFFNESS AND DAMPING COEFFICIENTS. THE THEORY IS FURTHER DEVELOPED TO PREDICT MOTION TRANSMISSIBILITY ACROSS THE TIRE FROM THE INPUT MOBILITY DATA. /RRL(A)/

  • Supplemental Notes:
    • Vol 184, PaRT 2A, NO 2, PP 25-40, 18 FIG, 14 REF
  • Authors:
    • Overton, J A
    • Mills, B
    • ASHLEY, C
  • Publication Date: 1969

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Filing Info

  • Accession Number: 00206860
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Jun 1 1971 12:00AM