2017 Volume 79 Issue 1 Pages 59-65
The behavior of a tractor running on a slope can be expressed by four degrees of freedom, namely, vertical, pitching, rolling, and forward. In this study, we simulated the behavior of a tractor equipped with a swing mechanism on the front axle via dynamic equations. The effect of supporting conditions on tractor behavior was studied. Furthermore, tractor behavior on a slope in the event of a fall accident was simulated. The influence of change in the center of mass on anteroposterior fall was considered. The results showed that the tractor behavior depends on reaction forces of each wheels which no equipped swing mechanism, and the behavior of tractor equipped swing mechanism depends on rear axle angle. In addition, it was found that the position of the center of mass must be located on wheelbase at a distance of 32-65% from the rear axle to prevent fall accidents; the most suitable value is 49%.
