Torsional vibration is angular vibration of an object commonly a shaft along its axis of rotation. Torsional vibration is often a concern in power transmission systems using rotating shafts or couplings where it can cause failures if not controlled.
The unit Torsion of Bars enables the student to understand the rotary vibration torsion bars. The unit is basically a wall mounted base frame. Torsion bar is clamped in a chuck. The mass disc and the mass hanger are clamped to the torsion bar at its lower end using a chuck