shaft of 50 mm diameter and 0.5m long is fixed at one end and other end carries a disc of mass 500 kg. The radius of gyration of the disc is 0.5 m. Find the frequency of torsional vibration, if the

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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.