Problem No.1: Determining the Moment of Inertia of a Flywheel
Consider a flywheel made of gray cast iron. The flywheel comes off a system that is undergoing reconfiguration and modernization. During this process, a new synchronous motor will be installed, and for this purpose, the moment of inertia of the flywheel needs to be determined.
To determine the moment of inertia, an experiment was conducted. The flywheel was placed on a knife-edge at the inner side of the rim (see Figure 1), and the time it took for one oscillation was recorded (1.22 seconds). Additionally, the weight of the flywheel was measured as 70 lb.
Figure 1: Flywheel setup