Sankalp & Shivam RR

Post on 10-Jan-2016

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Rolling resistance of tyre

Transcript of Sankalp & Shivam RR

ROLLING RESISTANCE

Rolling Resistance

Submitted By:Sankalp GargShivam Mangal

IndexWhat is Rolling Resistance?Mechanical energy converted into heat Energy loss per unit cycleEffort required to keep a given tire rollingIt can also be measured as drag forceUnit - (Nm/m)Three basic cause:Hysteresis loss due cyclic stressFriction lossesAerodynamic losses

Loss Contributions

Tire/groundand tire/rimfriction (