Electric machine with separable magnet carrier

A gas turbine engine defining a longitudinal direction, a radial direction, and a circumferential direction, and an axial centerline defined along the longitudinal direction, the engine comprising:

• an electric machine comprising a plurality of carriers arranged along the circumferential direction, wherein each pair of carriers defines a carrier gap therebetween, and wherein each carrier includes a separate rotor magnet, wherein the carrier gaps prevent transfer of hoop stresses from one carrier to another along the circumferential direction, and wherein the electric machine comprises an outer ring radially outward of and surrounding the plurality of carriers along the circumferential direction, wherein the outer ring defines a unitary structure attached to each of the plurality of carriers so as to transfer the hoop stresses from the plurality of carriers, and further wherein the electric machine further comprises a hub disposed radially inward of the plurality of carriers, wherein the hub retains each carrier along at least the longitudinal direction and the circumferential direction;
• and
• a driveshaft extended along the longitudinal direction and rotatable about the axial centerline, wherein the hub of the electric machine is coupled to the driveshaft.