Friction Experiments for Dynamical Coefficient Measurement

الملخص EN

An experimental study, including three experimental devices, is presented in order to investigate dry friction phenomena in a wide range of sliding speeds for the steel on steel contact.

A ballistic setup, with an air gun launch, allows to estimate the friction coefficient between 20 m/s and 80 m/s.

Tests are completed by an adaptation of the sensor on a hydraulic tensile machine (0.01 m/s to 3 m/s) and a pin-on-disk tribometer mounted on a CNC lathe (1 to 30 m/s).

The interactions at the asperity scale are characterized by a white light interferometer surface analysis.