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PB251932

Publication Date	1976
Personal Author	Schuring, D. J.
Page Count	246
Abstract	Rolling loss tests were performed on 31 different passenger and 4 light truck tires under transient and equilibrium conditions. The tests were designed to determine the effects of load, speed, inflation pressure, tire temperature, slip angle, torque, tire construction, aspect ratio and wheel diameter. In addition, the influences of road curvature (flat roadway, drum) and trip length on rolling resistance were investigated. The results are presented in tables and graphs. They are expressed in terms of 12 power loss descriptors (for each tire), stating initial values, equilibrium values, and distances required to achieve equilibrium, for rolling resistance, contained air temperature, tread surface temperature, and inflation pressure.
Keywords	Tires Wear Friction Road tests Loads(Forces) Velocity Torque Temperature Pressure Wheels Trucks Treads Roads Surface roughness Fuel consumption Energy conservation Elastomers Construction Passenger vehicles Rolling resistance
Source Agency	Office of the Secretary Transportation Systems Center
NTIS Subject Category	85H - Road Transportation
Corporate Authors	Calspan Corp., Buffalo, N.Y.; Transportation systems Center, Cambridge, Mass.
Document Type	Technical Report
Title Note	Final rept. Apr 75-Jan 76.
NTIS Issue Number	197613
Contract Number	DOT-HS-4-00923

Rolling Resistance of Tires Measured Under Transient and Equilibrium Conditions on Calspan's Tire Research Facility.

Rolling Resistance of Tires Measured Under Transient and Equilibrium Conditions on Calspan's Tire Research Facility.
PB251932

Publication Date	1976
Personal Author	Schuring, D. J.
Page Count	246
Abstract	Rolling loss tests were performed on 31 different passenger and 4 light truck tires under transient and equilibrium conditions. The tests were designed to determine the effects of load, speed, inflation pressure, tire temperature, slip angle, torque, tire construction, aspect ratio and wheel diameter. In addition, the influences of road curvature (flat roadway, drum) and trip length on rolling resistance were investigated. The results are presented in tables and graphs. They are expressed in terms of 12 power loss descriptors (for each tire), stating initial values, equilibrium values, and distances required to achieve equilibrium, for rolling resistance, contained air temperature, tread surface temperature, and inflation pressure.
Keywords	Tires Wear Friction Road tests Loads(Forces) Velocity Torque Temperature Pressure Wheels Trucks Treads Roads Surface roughness Fuel consumption Energy conservation Elastomers Construction Passenger vehicles Rolling resistance
Source Agency	Office of the Secretary Transportation Systems Center
NTIS Subject Category	85H - Road Transportation
Corporate Authors	Calspan Corp., Buffalo, N.Y.; Transportation systems Center, Cambridge, Mass.
Document Type	Technical Report
Title Note	Final rept. Apr 75-Jan 76.
NTIS Issue Number	197613
Contract Number	DOT-HS-4-00923