A 250 mm radius brake drum is shown in Figure 3. The total mass moment of inertia of the brake drum and the flywheel to which it is attached is 20 kgm?. The kinetic coefficient of friction between the drum and brake shoe is 0.4. The initial angular velocity of the system is 240 rpm in the clockwise direction. Determine the constant force that must be exerted by the hydraulic cylinder if the system is to stop in 75 revolutions. Based on the system geometry, indicate: Whether or not the system is self-energizing. Whether or not the system is self-locking and explain the implications of this for the system's operation.

A 250 mm radius brake drum is shown in Figure 3. The total mass moment of inertia of the brake drum and the flywheel to which it is attached is 20 kgm?. The kinetic coefficient of friction between the drum and brake shoe is 0.4. The initial angular velocity of the system is 240 rpm in the clockwise direction. Determine the constant force that must be exerted by the hydraulic cylinder if the system is to stop in 75 revolutions. Based on the system geometry, indicate: Whether or not the system is self-energizing. Whether or not the system is self-locking and explain the implications of this for the system's operation.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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