Method of Considering Influence of Driving Wheels in Determining Curved Trajectory of Tractor

Abstract

It is well known that the curvilinear motion of the machine and tractor unit (MTU) is significantly different from its rectilinear motion. Typically, kinematic and dynamic work environment in the curvilinear motion is much more complicated. It requires additional study of many factors that affect the handling, stability and reliability of the machine. Despite the complexity of the process, research the conditions of the curvilinear motion machine and tractor units is actual and has a practical importance. It is important to know exactly how far during certain operations need to be overcome tractor before forecasting future costs of fuel and oil. It is known that turns and reversals amount about 10 - 40% of the trajectory of the MTU. There are diagrams of unit’s turns in different parts of the field and some attempts to construct the trajectory of curvilinear motion by different methods in the academic literature. The authors of this article analytically determine the trajectory of turning the tractor with front steered wheels.

A scientific research of the conditions of curvilinear motion by machine and tractor units is of practical importance. A curvilinear motion by MTU is significantly different from its rectilinear motion. Typically, kinematic and dynamic work environment are much more complex. It requires the study of many additional factors that affect the handling, stability and reliability of the machine.

This article attempts to describe the curvilinear trajectory of a four-wheeled tractor using parametric equations in Cartesian coordinates. This study is quite important for Agricultural engineering service companies as it allows advance planning area of cultivation, planting and areas which will be turning and topping band. It will enable to calculate the necessary amount of fuel and time.