ROTARY BODY USED FOR ENERGY STORAGE APPARATUS, METHOD OF MANUFACTURING ROTARY BODY, AND ENERGY STORAGE APPARATUS

摘要

A rotary body used for an energy storage apparatus, a method of manufacturing the rotary body, and the energy storage apparatus. The energy storage apparatus for storing an external energy in the form of the rotational kinetic energy of the rotary body with the frictional resistance of a bearing part minimized by utilizing fishing effect by superconductivity comprises the rotary body which enables a high-speed rotation by increasing the deformation resistance of the rotary body in rotating and the storage of a large external energy. The rotary body is used for the energy storage apparatus capable of storing energy by rotating the rotary body with the frictional resistance of the bearing part minimized by supportedly levitating the rotary body by the use of the fishing effect by superconductivity. The rotary body (1) is made of a CFRP, and a specified compressive stress is applied thereto beforehand in the reverse direction to the direction of a centrifugal force caused when the rotary body (1) is rotated. The rotary body (1) is formed in a bar-like structure extending in the direction of the centrifugal force caused when the rotary body (1) is rotated.