ИСТИНА

This study is devoted to experimental research of rubber friction in sliding contact with rough surface. Influence of pressure, bulk temperature and sliding velocity on friction coefficient in dry conditions is analyzed for two rubber compounds with different viscoelastic properties. Grosch method of construction master curves is used for analyzing of friction measurements are obtained for different temperatures and velocities at constant normal load. The obtained friction master curves are approximated into a single friction map. The friction maps are demonstrated the influence of viscoelastic properties of rubber on friction coefficient in dry rough contact. Also friction maps showed the influence of adhesion and hysteresis contributions into friction coefficient for different rubber compounds. This work was supported by Russian Science Foundation (grant # 14-29-00198).