Lubricated Friction Dynamics

Abstract

Consider the sliding of a block on a substrate under boundary lubrication conditions. To the block is connected a spring (force constant k _s) and the free end of the spring is moving with the velocity υ _s. Depending on the parameter values (k _s, υ _s) the motion of the block may be either steady or of stick-slip nature. In this chapter we discuss the nature of the (k _s, υ _s) phase diagram, i.e., the regions in the (k _s, υ _s)-plane where the motion is steady and oscillatory are determined and the nature of the transition between the two types of sliding behavior is discussed.