+1 vote
in Machine Dynamics by (34.3k points)
If Ic = 125 Kg-m^2 and ω= 20 rad/s, calculate the kinetic of the constraint.

(a) 8333 J

(b) 7333 J

(c) 6333 J

(d) 9333 J

This question was addressed to me by my school principal while I was bunking the class.

This interesting question is from Effect of Inertia of the Constraint on Torsional Vibrations topic in section Torsional Vibrations of Machine Dynamics

1 Answer

0 votes
by (38.6k points)
Right choice is (a) 8333 J

Easy explanation: The kinetic energy of the constraint is given by the equation:

K.E = 1/6 Icω^2

substituting the value we get

K.E = 8333J.

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