Dynamics of Motor-Load Combination (Cont.)

How to referred torques and masses which undergoes translational motion at variable speeds?

• The machines which converts the rotational motion into a translational one using the crankshaft, the speed and the moving masses vary both in magnitude and sign during each revolution of the crankshaft. The kinetic energy stored I the masses will go to zero to a maximum. The moment of inertia referred to a crankshaft is , where m is the mass of the body undergoes translation motion with a velocity of v and is the angular velocity of the shaft.