Design considerations of a contact slider and bouncing vibration in near-contact regime

This article introduces the results of our recent study on the design conditions for a contact and near-contact slider and friction-induced bouncing vibrations in a near-contact regime, based on computer simulations using a simple dynamical model of slider, air-bearing, and disk systems. Basic design conditions for contact sliding are discussed. The contact force and attractive force in asperity contact with a lubricant layer and bulk deformation are calculated numerically. Flying height hysteresis and bouncing vibration of a flying slider that are experimentally observed in nanometer spacing can be obtained by the simulation.