A new multicontact tribometer for deterministic dynamic friction identification

This paper presents an original friction measurement setup. It is designed to uncouple normal and tangential loads. Friction measures acquired with this setup present a high signal to noise ratio. This friction experimental device allows characterizing various types of surfaces and several levels of excitation from static strain to dynamical motion including micro-sliding and macro-sliding. A measurement example is presented for a contact pair of aluminum alloys starting from sticking limit until complete sliding. Finally, in order to use the results in vibration models, a method is proposed to identify the Lugre Model from these measurements.