Abstract
In some industrial devices, the use of a sliding contact to transmit power currents or communications signals is required. The physical and, in particular, tribological understanding of these electromechanical systems is therefore a major issue. Thus, this article reports a theoretical and numerical study accounting for the mechanical influences about the electric transport properties of a sliding metallic dry contact and their variations with sliding speed and contact load. These variations are characterized by analyzing the voltage noise across the contact during sliding. Results are compared to experimental data and show good agreement between theory and experiments below a critical speed value. This study is part of research and development on tribology and dynamical interface monitoring.
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