Question

16. A punching machine uses a flywheel in the form of a solid steel disc 1.0 m diameter and 0.1 m thick rotating with a mean speed of 100 revolutions per minute. The machine is operated once every 6 revolutions and a torque of 2000 Nm is exerted for a duration of 0.05 seconds. The energy absorbed is replaced during the rest of the cycle. If the density of the steel is 7830 kg/m3 determine: (a) The mass of the flywheel (b) The moment of inertia (c) The work done during the pressing operation (d) The maximum and minimum speeds of the flywheel

Answer 1

Answer:

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Answer 2

revolutions and a torque of 2000 Nm is exerted for a duration of 0.05 seconds. The energy absorbed is replaced during the rest of the cycle. If the density of the steel is 7830 kg/m3 determine: (a) The mass of the flywheel (b) The moment of inertia (c) The work done during the pressing operation (d) The maximum and minimum speeds of the flywheel