Part B High-Friction Devices
Our concern was with two flexible elements in the preceding sections.
In Part B, we turn to clutches and brakes, which are high-friction devices.
We consider the most commonly used types, having two or more surfaces pressed together with a normal force to produce a friction torque. Performance analysis of clutches and brakes involves the determination of the actuating force, torque transmitted, energy absorption, and temperature rise.
The transmitted torque is associated with the actuating force, the coefficient of friction, and the geometry of the device. The temperature rise is related to energy absorbed in the form of friction heat during braking or clutching.