| Popis: |
Nonlinear spatial oscillations of vibration protection systems on three rolling-contact bearings limited by high-order revolution surfaces in non-resonance conditions are investigated in this paper. The results of the evaluation of the influence of the rolling friction of relaxing ground on the effectiveness of vibration protection by rolling-contact bearings, which are geometric bodies, limited by two high-order surfaces, are contained. In order to study the spatial oscillations of a vibration-proof object on rolling-contact bearings with expanded surfaces, methods for solving a set of nonlinear ordinary differential equations are developed. Based on the results of studies of spatial oscillations of a vibration-proof object on rolling-contact bearings with expanded surfaces, the following conditions for the appearance of rotary oscillations are established: 1. An increase in the difference in the rolling friction coefficients, as could be expected, leads to an increase in the angular displacements of a vibration isolation body; 2. an effect of energy transfer from one direction to another is intensified with increasing of rolling friction. The results obtained in the course of numerical experiments indicate a weak interconnectivity of both translational and rotational motions of the system under consideration. |
