INVESTIGATION OF TWO-SIDED SOFT IMPACTS

摘要

In various engineering devices used in robotics, transport and agricultural engineering two-sided impacts take place. In this paper two-sided soft impacts are investigated. Model of the investigated vibrating system with two-sided soft impacts is described in detail. Dynamics of the investigated system with two-sided soft impacts takes place according to the three typical regimes of motion: vibrating system is not connected with the supports, vibrating system is connected with the first support, vibrating system is connected with the second support. Results of numerical investigations are presented in the form of graphical relationships. Variation of displacement of the vibrating system, variation of velocity of the vibrating system, variation of displacement of the left support, variation of displacement of the right support, variation of the value of the force and variation of the quantity characterizing the regime of motion of the vibrating system as functions of time are investigated. Investigation of steady state regimes of motion for various stiffnesses of the supports is performed. Results for several typical values of stiffnesses of the supports are presented in the paper. The obtained graphical representations enable to understand the behavior of the investigated vibrating system with two-sided soft impacts in steady state regimes of motion for various stiffnesses of the supports. The obtained results of the performed investigation are applied in the process of design of pipe robots and other engineering devices. Keywords: two-sided impacts, soft impacts, harmonic excitation, nonlinear dynamics, left support, right support.