The crank of slider-crank punching press has a mass moment of inertia of \(1 \mathrm{kgm}^{2}\). The below Fig. 66 shows the torque demand per revolution for a punching operation. If the speed of the crank is found to drop from \(30 \mathrm{rad} / \mathrm{s}\) to \(20 \mathrm{rad} / \mathrm{s}\) during punching, what is the maximum torque demand during the punching operation?

(a) \(95.4 \mathrm{Nm}\)

(b) \(104.7 \mathrm{Nm}\)

(c) \(477.2 \mathrm{Nm}\)

(d) \(523.8 \mathrm{Nm}\).

Transcribed Image Text:

TORQUE /2 3/2 Fig.66 0 2 CRANK ANGLE