Volumetrically constrained compound rotors for flywheel electric storage systems and numerical modeling processes for the production thereof

A compound rotor assembly comprising:

• a set of disks, wherein each disk in the set of disks is substantially coaxial, rotationally symmetric, monolithic, and characterized by a radial profile comprising:
• a rim-transitional outer region defining:
• a circumferential rim about the circumference of the disk characterized by a rim thickness and a circumferential surface;
• and
• a rim transition inscribing the circumferential rim;
• an attachment-driven inner region defining:
• an annular surface substantially concentric with a central bore and substantially parallel to a rotational plane of the disk, the central bore characterized by a central bore radius and a central bore depth relative to the annular surface;
• and
• a clearance-driven transition circumscribing the annular surface;
• and
• a Laval-like intermediate region connecting the clearance-driven transition to the rim transition;
• and
• between each pair of adjacent disks in the set of disks, an attachment subassembly in a set of attachment subassemblies, each attachment subassembly comprising:
• an alignment pin arranged within a pair of adjacent central bores of the pair of adjacent disks;
• and
• a pair of attachment flanges circumscribing the alignment pin, each attachment flange in the pair of attachment flanges fastened to an opposite attachment flange in the pair of attachment flanges via a set of inter-flange fasteners and fastened to a disk in the pair of adjacent disks via a set of disk-flange fasteners.

A flywheel disk characterized by a radial profile comprising:

• a disk radius;
• a rim-transitional outer region defining:
• a circumferential rim about the circumference of the disk characterized by a rim thickness and a circumferential surface;
• and
• a rim transition inscribing the circumferential rim;
• an attachment-driven inner region defining:
• an annular surface substantially concentric with a central bore and substantially parallel to a rotational plane of the disk, the central bore characterized by a central bore radius and a central bore depth relative to the annular surface;
• a set of disk-flange fastener bores arranged radially about the central bore, each disk-flange fastener bore in the set of disk-flange fastener bores configured to receive a disk-flange fastener;
• a clearance-driven transition circumscribing the annular surface;
• and
• a Laval-like intermediate region connecting the clearance-driven transition to the rim transition.