Abstract
This chapter presents a discussion on friction and lubrication forces. Friction and lubrication forces act in different ways. They have no force law and arise only as a reaction to motion or another force. They are referred to as nonconservation forces because they involve energy loss or dissipation or transfer of energy from one body or form to another. There are four friction mechanisms that include load-controlled friction, adhesion-controlled friction, elastohydrodynamic friction, and rolling friction. Friction forces are generally not symmetrical on exchanging the stationary and moving surfaces. The chapter begins with an overview of the origin of friction and lubrication forces. Relationships between adhesion and friction forces are then explained. The chapter presents a discussion on Amonton's laws of friction. Concepts of smooth and stick-slip sliding as well as lubricated sliding are then explained. Detailed study of transitions between liquid- and solid-like films is then presented. The chapter concludes with introducing a theoretical model for friction mechanisms.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
