Computational model for friction force estimation in sliding motion at transverse tangential vibrations of elastic contact support

The main purpose of this work has been to develop a dynamic computational model for analysing the influence of transverse tangential vibrations on friction and driving forces in a sliding motion in a case when vibrations are imposed not directly onto the sliding body but are transferred to it from a vibrating support. This model is applicable to perfectly elastic contacts. For the friction force description, the dynamic friction models were used. Taken into account was also stiffness of the drive system. The outcomes of simulating analyses carried out with the use of this model, implemented in Matlab/Simulink environment, were compared with results of experimental investigations conducted on a novel, in-house designed test rig. Excellent consistency of experimental results with those from simulating analyses was achieved. The mechanism of friction force reduction in sliding motion under the influence of transverse tangential vibrations was explained.