THE IMPORTANCE OF HYSTERESIS LOSSES IN THE FRICTION OF LUBRICATED RUBBER

THE MAIN POINT BROUGHT OUT IN THIS PAPER IS THAT WHEN WELL LUBRICATED RUBBER SURFACES SLIDE OVER HARD PROTUBERANCES THE MAJOR PART OF THE RESISTANCE TO SLIDING MAY WELL ARISE FROM HYSTERETIC LOSSES IN THE RUBBER ITSELF. ANY FACTOR, SUCH AS TEMPERATURE OR FREQUENCY OF DEFORMATION, WHICH AFFECTS THE HYSTERESIS LOSSES WILL HAVE A CORRESPONDING EFFECT ON THE FRICTION. THIS SUGGESTS THAT THE RESISTANCE TO SLIDING ON WET OR SLIPPERY ROAD SURFACES MAY BE CONSIDERABLY INCREASED BY USING A TIRE RUBBER WHICH MAINTAINS A HIGH HYSTERETIC LOSS OVER THE RANGE OF SPEEDS AND TEMPERATURES DEVELOPED DURING OPERATION. IN ORDER TO REDUCE THE TENDENCY TO OVERHEAT A DUPLEX STRUCTURE IS SUGGESTED IN WHICH THE BODY OF THE TIRE HAS LOW LOSSES WHILE THE TREAD HAS HIGH LOSSES. THE FREE ROLLING FRICTION OF THE TIRE MAY BE KEPT LOW BOTH BY MODIFYING THE GEOMETRY OF THE TIRE TO GIVE A LONG NARROW BAND OF CONTACT WITH THE ROAD SURFACE, AND BY USING FINE TEXTURE PROTUBERANCES ON THE ROADWAY. /AUTHOR/

• Supplemental Notes:
  • Proc First INTL SKID PREV CONF, PART 1, PP 211-218, 5 FIG,
• Corporate Authors:

  Virginia Highway Research Council

  Charlottesville, VA  United States 
• Authors:
  • Tabor, D
• Publication Date: 1958

Subject/Index Terms

• TRT Terms: Deformation; Friction; Hysteresis; Losses; Lubrication; Speed; Surface course (Pavements); Temperature; Tire treads; Tires
• Uncontrolled Terms: Sliding
• Old TRIS Terms: Resistance
• Subject Areas: Geotechnology; Highways; Materials; Vehicles and Equipment;

Filing Info

• Accession Number: 00216467
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 28 1994 12:00AM