# 6: Friction and Friction Applications

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• 6.0: Video Introduction to Chapter 6
Video introduction to the topics to be covered in this chapter: dry friction and its applications in various mechanical parts.
• 6.1: Dry Friction
Introduction to dry friction. Modeling dry friction with coulomb friction: the differences between static and kinetic friction, their relationship to movement of an object, and how to calculate them.
• 6.2: Slipping vs Tipping
Determining whether an object will first undergo translational motion (slipping) or rotational motion (tipping) as a force is applied to it.
• 6.3: Wedges
Wedges as a method of using friction to accomplish tasks. Using the coulomb friction model to calculating the force to be applied to a wedge in a given situation.
• 6.4: Power Screws
The general structure of power screws. Application of friction to analyze the forces involved in a power screw and to determine whether or not a given power screw is self-locking.
• 6.5: Bearing Friction
The general structure of plain/journal bearings. Application of friction to analyze the forces and moments involved in the movement of a (plain) bearing.
• 6.6: Disc Friction
Friction in common disc-shaped mechanisms. Calculating moment based on friction for such discs.
• 6.7: Belt Friction
Determining friction in flat-belt and V-belt pulley systems. Calculating torque and power transmission in belt-driven systems through application of belt friction.
• 6.8: Chapter 6 Homework Problems

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