A cast iron fly wheel rotating at $600\text{ rpm}$ is brought to rest…

Question

A cast iron fly wheel rotating at $600\text{ rpm}$ is brought to rest by a break in $2\text{ sec}$. The flywheel may be considered as a solid circular disc having a diameter of $400\text{ mm}$ and thickness $100\text{ mm}$. The density of cast iron is $7200\text{ kg/m}^3$. Determine:

i. Energy absorbed by the brake.

ii. Number of turns drum rotates before coming to rest.

iii. The braking Torque.

Related pages

• Brakes — topic
• Machine Design syllabus