Analytical Determination of the Power Characteristics of the Wheel During its Curvilinear Rolling

Rectilinear rolling is a special case of a more general motion- curvilinear. With curvilinear rolling, the power and kinematic parameters of the wheel differ from those in its rectilinear motion. When considering issues related to the curvilinear rolling of wheels, one can note the variety of approaches used to solve this problem and the results obtained, as well as inaccuracies and uncertainties inherent in a considerable number of studies. This determines the relevance of the problem of analyzing the curvilinear rolling of the wheel. Realization of forces and moments applied to the wheel occurs in the zone of contact of the wheel with the supporting surface, therefore, the determination of the power and kinematic parameters of the wheel should be based on the consideration of contact phenomena occurring in the contact zone. Assuming that the force acting in the contact of the wheel with the supporting surface leads to the occurrence of tangential displacements of the wheel points in the contact zone and the corresponding tangential stresses, the work determines the longitudinal and lateral forces acting on the wheel during curvilinear rolling, as well as the turning resistance moment and relative power friction losses in the contact. Based on the calculations performed and the constructed graphical dependencies, the influence of the turning radius on the indicated power parameters of the wheel is analyzed.