DESIGN OF COMPOSITE FLYWHEEL STRUCTURE AND ITS STRESS ANALYSIS

The use of advanced carbon-fiber composite on a flywheel rotor results in not only the increase of energy density by increasing the rotating speed when the outer diameter and mass are fixed, but also solution of the fracture problem of the flywheel rotor. The calculation on the stress distribution is conducted in the present paper according to the working situation of the flywheel. These provide the basis for proper design of composite flywheels.