EXPERIMENTAL INVESTIGATIONS AND PRELIMINARY NUMERICAL SIMULATION ON THE ROLLING FRICTION COEFFICIENT'S EVALUATION OF UNCOVERED STEEL PARTS

The authors, based on their preliminary researches and their original testing bench, performed several experimental investigations concerning on rolling friction coefficient's magnitude, as well as preliminary numerical simulation of the rolling phenomenon. Their main contribution consists of establishing the rolling friction coefficient's magnitude in the starting moment because in literature these values are not mentioned. In the next period, the authors intend obtaining useful database on the rolling friction coefficient's for different types of covered and uncovered tribo-couples.