Theoretical Studies of the Relationship Between the Parameters of the Bridge Tractor and the Engineering Area of the Field

The planning of the field under the bridge system of agriculture should be carried out taking into account the size of both the bridge tractor, which moves on specially created tracks of the permanent technological track, and auxiliary means of mechanization. The purpose of the research is to study the processes of field planning and organization of the movement of bridge tractors, considering the prospects for further automation of all technological processes that they perform, including transport. Theoretical research was carried out by modeling the conditions of the bridge tractor operation on the PC using the provisions of theoretical mechanics and tractor theory. Experimental studies of the bridge tractor were carried out according to both generally accepted and developed methods and involved the use of modern and specially designed equipment. As a result of research, mathematical models and algorithms were developed to allow interdependent choice of construction parameters of bridge tractors, in particular, the width of its track and propulsion, stable traffic conditions (taking into account the value of technological tolerance) and parameters of the field for its permanent technological track. Mathematical analysis of the obtained models substantiates the rational track width of these bridge tractors at the level of 7.5…9 m, according to which the loss of field area under the engineering zone when using them is not more than 5…6%.