Studies on the Applicability of Empirical Equations to the Estimation of Skid of the wheel (2)

Tests of Two Wheel Tractor on Flat Land

Abstract

Continued from the first of this study, in this paper, the applicability of the empirical equations was discussed on the basis of experimental results in flat land, using the two wheel tractor equipped with agricultural tire and steel-lugged wheel (attached with the non-skidding plates) respectively.
Main results were as follows:
(1) On the rolling and driving wheel of agricultural tire, the experimental value of C agreed well with the estimated value by using the maximum frictional resistance at the side slip angle of under 10 degree and the sliding frictional resistance at side slip angle of over 10 degree in the empirical equations.
(2) The experimental values on the steel-lugged wheel were the same results as the values on agricultural tire. The reason for this was that there was found no effect of the non-skidding plates of wheel owing to the soil fixed on the plates.