tire rolling resistance

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• Rolling resistance — Figure 1  Hard wheel rolling on and deforming a soft surface, resulting in the reaction force from the surface having a component that opposes the motion. Rolling resistance, sometimes called rolling friction or rolling drag, is the… …   Wikipedia

• rolling resistance force — the negative longitudinal force resulting from energy losses due to deformations of a rolling tire. Note: this force can be computed from the forces and moments acting on the tire by the road. fr = (mycosy + mzsiny)/rl. Note: this rolling… …   Mechanics glossary

• rolling resistance — As the wheels begin to turn, there are forces which resist its motion such as low tire pressure, rough road surface, increased tire temperature, tire composition, increased vehicle weight, and even air resistance …   Dictionary of automotive terms

• rolling resistance moment — the component of the tire moment vector tending to rotate the tire about the y axis, positive clockwise when looking in the positive direction of the y axis …   Mechanics glossary

• Low-rolling resistance tires — are tires which are designed to improve fuel efficiency of a car by minimizing the energy wasted as heat as the tire rolls down the road. Approximately 5–15% of the fuel consumed by a typical car may be to overcome to rolling resistance. [… …   Wikipedia

• Tire — This article is about tires used on road vehicles, including pneumatic tires and solid tires. For railroad tires, see railway tires. For other uses, see tire (disambiguation) or tyre.Tires, or tyres (in American and British English, respectively) …   Wikipedia

• tire — tire1 /tuyeur/, v., tired, tiring, n. v.t. 1. to reduce or exhaust the strength of, as by exertion; make weary; fatigue: The long walk tired him. 2. to exhaust the interest, patience, etc., of; make weary; bore: Your stories tire me. v.i. 3. to… …   Universalium

• Rolling-element bearing — A rolling element bearing is a bearing which carries a load by placing round elements between the two pieces. The relative motion of the pieces causes the round elements to roll with very little rolling resistance and with little sliding.One of… …   Wikipedia

• tire forces — the external force acting on the tire by the road having the following components: longitudinal force; driving force; braking force; rolling resistance force; lateral force; slip angle force; camber force; normal force; central force; tractive… …   Mechanics glossary

• tire moments — the external moments acting on the tire by the road having the following components: aligning torque or aligning moment; rolling resistance moment; driving torque; overturning moment; wheel torque …   Mechanics glossary

• Run-flat tire — A run flat tire is a pneumatic vehicle tire that is designed to resist the effects of deflation when punctured, and to enable the vehicle to continue to be driven at reduced speeds (up to 90 km/h or 55 mph), and for limited distances of up to 100 …   Wikipedia