Modeling of mover with anti-skid devices

Abstract

For a mover equipped with anti-skid devices, the process of slipping is being formed due to the factors of soil compression, shift and cut by tire hooks. With a decrease in the number of removable hooks, the period, when the first hook is disengaged and the second has not yet entered into interaction with the soil, increases. At the moment, traction and hitching properties of the wheel are formed only by tire hooks. During the interaction of the removable hook with the soil, the traction ability of the wheel consists of the shear forces of the soil “bricks” sandwiched between the tire hooks and the soil deformation forces by the removable hooks. With increasing height, length and thickness of the hook, the traction forces of PC and PB increase. However, the hook height parameter, in contrast to the length, is optimized by the diameter of the wheel, the depth of the soil, track and tire deflection. In addition, with an increase in the height of the hook, the resistance to the movement of the wheel increases. The study obtains models of the influence of the hook length lc on the traction and bearing capacity of the hook. With an increase in the slipping process, the ratio of traction forces to implementation increases. Therefore, the functional qualities of anti-skid devices depend not only on the parameters of the hook, but also on the operating modes of the mover. The graphical analysis shows the relationship between the parameters of the removable hook according to the criterion of reliability and performance of the anti-skid system. The influence of the hook parameters on the functional qualities of the removable device, the ability to perform traction propulsion properties is revealed. The paper provides the dependencies for determining the optimal geometric parameters of the removable hook, knowing the dependence of the implementation force on the penetration depth of a unit base area, while taking into account the force on the implementation of the anti-skid device strut.