PH3151: ENGINEERING PHYSICS
OSCILLATIONS
Torsional Pendulum: Suspension and
Oscillations
Restoring Couple and Torsional Oscillations
Definition of a Torsional Pendulum
A torsional pendulum is a mechanical system that exhibits
oscillatory motion about a stable equilibrium position due to a
restoring couple. It consists of a suspended object that is free to
rotate about a fixed axis.
Suspension of a Torsional Pendulum
The suspension of a torsional pendulum is typically a thin wire,
rod, or strip that is attached to the suspended object and the fixed
axis. The material used for the suspension must have a low
stiffness to allow for rotational motion.
Restoring Couple in a Torsional Pendulum
When the suspended object is twisted or rotated from its
equilibrium position, a restoring couple acts on the object, causing
it to oscillate back and forth about the equilibrium position. The
restoring couple is proportional to the angle of displacement from
the equilibrium position and is directed toward the equilibrium
position.
OSCILLATIONS
Torsional Pendulum: Suspension and
Oscillations
Restoring Couple and Torsional Oscillations
Definition of a Torsional Pendulum
A torsional pendulum is a mechanical system that exhibits
oscillatory motion about a stable equilibrium position due to a
restoring couple. It consists of a suspended object that is free to
rotate about a fixed axis.
Suspension of a Torsional Pendulum
The suspension of a torsional pendulum is typically a thin wire,
rod, or strip that is attached to the suspended object and the fixed
axis. The material used for the suspension must have a low
stiffness to allow for rotational motion.
Restoring Couple in a Torsional Pendulum
When the suspended object is twisted or rotated from its
equilibrium position, a restoring couple acts on the object, causing
it to oscillate back and forth about the equilibrium position. The
restoring couple is proportional to the angle of displacement from
the equilibrium position and is directed toward the equilibrium
position.
