Quote:
Originally Posted by BigJ
Still 71% force of regular wheels, 100% motor output
|
The forward force Ff provided by a mecanum wheel is the same as the forward force that would be produced by a “standard” wheel of the same diameter being driven with the same torque, but in the case of the mecanum wheel the reaction force of the floor on the wheel (roller) is greater by a factor sqrt(2), because this reaction force is at 45 degrees to the forward direction.
It is this greater reaction force which causes the mecanum wheel to break traction with the floor and slip at lower forward-force levels than a standard wheel. This explains why a mecanum vehicle has less traction than a standard-wheel vehicle, even if they both use the same wheel material.
http://www.chiefdelphi.com/media/papers/download/2739