학술논문

Torque Computation With the Isogeometric Mortar Method for the Simulation of Electric Machines
Document Type
Periodical
Source
IEEE Transactions on Magnetics IEEE Trans. Magn. Magnetics, IEEE Transactions on. 58(9):1-4 Sep, 2022
Subject
Fields, Waves and Electromagnetics
Splines (mathematics)
Torque
Rotors
Stators
Geometry
Finite element analysis
Computational modeling
Electric machines
isogeometric analysis (IGA)
magnetostatics
mortaring
numerical simulation
splines
torque
Language
ISSN
0018-9464
1941-0069
Abstract
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 for remeshing. The appropriate B-spline spaces needed for the solution of Maxwell’s equations and the corresponding mortar spaces are introduced. Unlike classical finite-element methods (FEMs), their construction is straightforward in the isogeometric case. The torque in the machine is computed using two different methods, that is, Arkkio’s method and using the Lagrange multipliers from the mortaring.