This report surveys the work on the rolling resistance of tyres as a preparatory phase in a research programme on heavy goods vehicle tyres. The rolling resistance of a tyre is influenced by a number of parameters principally because of the hysteresis energy loss in the component parts of the tyre due to the delayed response to a stress change caused by the visco-elastic nature of the material. Some of the factors which will tend to reduce the level of rolling resistance coefficient are as follows: 1. Increase the tyre inflation pressure; 2. Change from cross-ply to radial-ply tyre; 3. Change from a low resilience material to a higher resilience; 4. Increase the tyre temperature; 5. Decrease the tyre tread depth; and 6. Decrease the vehicle speed. Wheel tracking will also affect the rolling resistance, as any mis-alignment will have a component which effectively acts as a retarding force although it is not strictly part of the rolling resistance of the tyre. (A) /TRRL/

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    Transport and Road Research Laboratory (TRRL)

    Wokingham, Berkshire  United Kingdom 
  • Authors:
  • Publication Date: 1975

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Filing Info

  • Accession Number: 00134336
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: No. SR 192 UC
  • Files: ITRD, TRIS, ATRI
  • Created Date: Sep 16 1976 12:00AM