In this study, the design and analysis of various energy storage flywheel types such as single material rotors(7075-T6, T300/epoxy, S2-glass/epoxy, and Kevlar/epoxy), multiple material rotors (S2 glass/epoxy+T300/epoxy), and hoop/helical wounded flywh...
In this study, the design and analysis of various energy storage flywheel types such as single material rotors(7075-T6, T300/epoxy, S2-glass/epoxy, and Kevlar/epoxy), multiple material rotors (S2 glass/epoxy+T300/epoxy), and hoop/helical wounded flywheel rotors were performed. An analytical model has been used to calculate the elastic stress of rotor systems subjected to internal force. The exact solution for rotating circular thick cylindrical shells has been obtained under assumption of axis-symmetric and plane strain conditions. Analysis results show that the behavior of flywheel rotors were strongly influenced by the key design parameters such as material properties and hoop/helical winding pattern. Also, the result of tradeoff study revealed that the multiple material rotor system was the most effective design concept for energy storage flywheel.