5, a system of two rotating bodies is shown, with their individual mass moments of inertia, separated by a rotational viscous damper element. The leftmost mass is connected to an input position, Pin, via a spring. This is a reasonable model for a system called a torsional vibrational damper, used for vibration damping in engines on the crankshaft. Jun Pin 0 0. Od Your tasks: A Draw the free body diagram of the rightmost rotating body. B Draw the free body diagram of the leftmost rotating body. (5

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Free undamped vibrations

Whenever an object/system displaces in either side of its equilibrium position with the help of an external/internal means, then the object/system moves regularly or randomly on both sides of its equilibrium position. This motion is called vibration. Generally, there are three types of vibration: longitudinal vibration, transverse vibration, and torsional vibration.