Misko Y. Improvement in maneuverability and stability of motion of an articulated urban bus of extra-large class

The dissertation is devoted to the problem of solving the scientific and technical task about the maneuverability and stability of motion of the jointed bus (later trains) with the possible application of traction in different axes and redistribution on the sides and axles of the bus and trailer sections on different options for loading passengers. According to the results of theoretical research on mathematical models of various complexity has been proven effect of application of traction or the second axis of the bus, or on the axis of the trailer section on the parameters of maneuverability and folding train. The technique of identifying hard and damping properties of the suspension of the wheels of the bus and trailer section. Based on the obtained parameters, a mathematical model of the oscillations of the wheel taking into account the relevant dissipate, which, in turn, allowed to improve two-track mathematical model of motion of lorry convoy to spatial, taking into account the vertical oscillations of the wheels of all axles. This gave the opportunity to consider the change of vertical loads with changes in lateral forces of withdrawal and their influence on the change in the maneuverability of the road train. According to the results of experimental researches it is established that the proposed spatial mathematical model corresponds to the real nature of the road train.