The pendulum body oscillates in a plane purely translationally without rotation. In a bifilar suspension, the pendulum body is suspended over two threads. In a trifilar suspension with three threads, the pendulum body is set in a torsional vibration. This kind of pendulum can be considered as a mathematical pendulum. The torsional vibration can be used to determine the moment of inertia by experiment.
Features:
Moment of inertia in an experiment on a rotary pendulum.
Ideal mathematical pendulum can be demonstrated.
Learning Objectives And Experiments:
Determine the mass moment of inertia
Influence of thread length on the oscillation period.
