What is the primary function of a flywheel in a mechanical system?

The primary function of a flywheel in a mechanical system is to store rotational energy and smooth out the delivery of power. Flywheels operate based on the principle of inertia, meaning they can maintain a constant speed by storing kinetic energy when excess energy is available and releasing it when there’s a demand for power. This capability helps to stabilize the output of power systems, particularly in applications with variable loads or speeds, ensuring a consistent performance.

By absorbing and releasing energy, flywheels effectively reduce fluctuations in rotational speed, which is especially beneficial in applications such as engines or turbines where smooth operation is critical. Their design allows them to manage energy changes efficiently, contributing to the overall stability and efficiency of the mechanical system.