Mathematical Modeling of the Tractor-Grader Agricultural System Cinematic During Land Improving Works

Abstract

This paper studies the influence of the pulled leveling machine on the general dynamics of the wheel tractor. The obtained data are employed in the design of the transmission and of other tractor sub-assemblies, representing the disturbance factors of the mathematical and dynamic models set up of establishing the strain on various components. It is shown that the rear axle of the tractor is loaded up to 53%, while the front one is released to values below the admissible minimum (20% of the static load). The loading coefficient of the rear wheels can reach A2 = 0.76°, while the longitudinal stability angle tilts during climbing and worsens by about 57% in relation to the solo tractor.