  This work deals with shape optimization of electric machines using
isogeometric analysis. Isogeometric analysis is particularly well suited for
shape optimization as it allows to easily modify the geometry without remeshing
the domain. A 6-pole permanent magnet synchronous machine is modeled using a
multipatch isogeometric approach and rotation of the machine is realized by
modeling the stator and rotor domain separately and coupling them at the
interface using harmonic basis functions. Shape optimization is applied to the
model minimizing the total harmonic distortion of the electromotive force as a
goal functional.
