FEATURES OF ROTATION OF THE ARTICULATED TRACTOR
DOI:
https://doi.org/10.26906/SUNZ.2022.1.021Keywords:
tractor, articulated frame, rotation, moment of resistance, kinematic characteristics, hook load, drive axleAbstract
The subject of research is the dynamics of turning a wheeled tractor with an articulated frame under special conditions for the functioning of an elastic pneumatic. The goal of the work is to analyze the model of movement of a wheeled tractor with an articulated frame, taking into account the features of the formation of the tangential force of the wheel traction and the dynamics of the turn. The tasks of the study are to obtain the dependences of the kinematic characteristics and the moment of resistance of a wheeled tractor when turning. Applied methods: methods of system analysis of the results of experimental and theoretical studies. The obtained results: the problem of turning a tractor with an articulated frame on agricultural backgrounds with different bearing capacity is considered. The formation of the moment of resistance to the rotation of the tractor is analyzed depending on the angle between the longitudinal axes of the sections. It has been established that the analysis of the turning process, carried out from the point of view of the kinematics of individual sections, does not fully reflect the specifics of turning the tractor in various conditions of its operation. The distortion of the given trajectory of the curvilinear movement is a consequence of the influence of the interaction forces of the elastic tires of the wheels with the ground and the centrifugal forces detected when moving at speeds exceeding 6 km/h. The practical significance of the work lies in the fact that, on the basis of the conducted system analysis, requirements were introduced for the performance of transport work in order to increase the traction and coupling properties and improve the patency of the transport and technological unit.Downloads
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