Understanding Torsion
Torsion: The action of twisting an object’s one end, while the other end is held fixed.
Torsional Oscillation: Torsional oscillations are oscillatory motions that occur when an object is twisted and then allowed to rotate back and forth around its axis due to a restoring torque.
What is the principle of torsional pendulum?
A torsional pendulum is a device that exhibits angular S.H.M. Its principle is based on the concept of restoring torque and rotational inertia.
Torsional Pendulum: A torsional pendulum oscillates around a central axis, with a disc or bar suspended by a wire whose twisting provides the restoring force.
- Inertia table is a modification of torsional pendulum and is employed to determine the moment of inertia of the bodies.
What is a torsional wave?
A torsional wave is a mechanical wave involving rotational motion around its axis, unlike transverse or longitudinal waves. It occurs in solid materials like rods or shafts.
How to Generate Torsional Waves?
Twist Impulse: Apply a sudden twist or torque at one end of a rod or shaft. This impulse will travel along the length of the rod as a torsional wave.