  In this work isogeometric mortaring is used for the simulation of a six pole
permanent magnet synchronous machine. Isogeometric mortaring is especially well
suited for the efficient computation of rotating electric machines as it allows
for an exact geometry representation for arbitrary rotation angles without the
need of remeshing. The appropriate B-spline spaces needed for the solution of
Maxwell's equations and the corresponding mortar spaces are introduced. Unlike
in classical finite element methods their construction is straightforward in
the isogeometric case. The torque in the machine is computed using two
different methods, i.e., Arkkio's method and by using the Lagrange multipliers
from the mortaring.
