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Formula track steering-turning

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Mechnique

Mechanical
Joined
Jun 22, 2003
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1
Location
AU
Hi,

Need a formula for steering/turning on a tracked vehicle (Bulldozer) i.e. it is ratio with the length, width and tractive effort plus landed and unlanded mass
 
tough one, it will be heavily related to weight distribution and the surface you are on as turning a tracked vehicle requires slippage. as a side note I have seen dozers with independent control of either track spin in place.

a good estimation assuming that neither track is moving backwards (this still might model that case, but im not sure of it):
let one tracks speed be v1 and the other v2 let W be the width from center of track to center of track let R be the turn radius.
(v1+v2)*W/(2*deltaV)=R

as for force required it would increase as the tracks got longer because the greater motion and the greater area but I doubt deriving the basic integral would give a number that is meaningful.
 
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