Interpreting the Main Power Characteristics Choice of the Wheel Vehicles Guided Cushioning System

Abstract

The method of investigation of the non-linear vibrations of the wheel vehicles with the guided cushioning system has been developed. It is based on the idea of the perturbation methods combined with the theory of special periodic Atebfunctions. All these made possible to obtain analytical relations, which describe the characteristic features of the cushioning area vibrations. These relations can be the basis for creation of the software product of the guided cushioning system with the purpose to minimize the dynamic loadings on the transported people and cargo and to increase the stability characteristics of the vehicle movement along the curvilinear areas of the bump road.

The Influence of the Relative Motion Dynamics of the Wheeled Vehicle Sprung and Unsprung Part on the Motion Stability along Curved Road Sections

“…The latter is a justification for the general ideas application of perturbation methods [12,13] when constructing the solution of the nonlinear equation system (2). The solutions of the unperturbed equations corresponding to system (2) are expressed [8] through periodic Ateb-functions [14,15] in the form of system (3): ω a , they depend on the amplitudes of the corresponding parts, as for most nonlinear oscillating systems, and take the value:…”

“…The above, to some extent, serves to simplify the calculation and so the mathematical models of the wheeled vehicle dynamics depending on the problem under consideration. Thus, to study the motion controllability it is sufficient to consider the relative longitudinal-angular oscillations of the sprung and unsprung part system, to the motion smoothness and passability -longitudinal-angular and vertical, to the motion stability -transverse angular [8,9].…”

“…Obtaining, in the general case, analytical relations for them, which would be the basis for influence evaluating the amplitudefrequency characteristics of the sprung and unsprung part oscillations on the main operational characteristics, is a problem that cannot be solved mathematically. Therefore, in a number of works [8][9][10], in order to partially solve the existing problems, the calculation models were simplified as much as possible, with limit taking into account only the sprung part oscillations. At the same time, even from the analysis of linear mathematical models [10,11], it follows that the wheeled vehicle unsprung part oscillations significantly affect the main operational characteristics during movement along a path with irregularities.…”