Guest editorial: Special issue on science of friction

摘要

Friction causes wear and energy dissipation of all moving parts under various operating conditions and environments.Approximately one third of the world’s primary energy consumption is attributed to friction.Friction,as a decisive factor of energy efficiency,attracts vital interest of scientists and engineers trying to understand its origin and develop means to control friction through predictive models.Therefore,under-standing the fundamental origins and mechanisms of friction is one of the great challenges in tribology.