Transient non-conforming sliding interfaces for motion in eddy current calculations

Issue title: Selected Papers from ISEF 2015

Guest editors: Paolo Di Barba and Sƚawomir Wiak

Article type: Research Article

Authors: Böhmer, Stefan^* | Hameyer, Kay

Affiliations: Institute of Electrical Machines, RWTH Aachen University, Aachen, Germany

Correspondence: [*] Corresponding author: Stefan Böhmer, Institute of Electrical Machines, RWTH Aachen University, Schinkelstraße 4, D-52062 Aachen, Germany. Tel.: +49 241 80 90256; Fax: +49 241 80 92270; E-mail:stefan.boehmer@iem.rwth-aachen.de

Abstract: Non-conforming sliding interfaces can be used in finite element (FE) simulations for the flexible implementation of the relative motion between stator and rotor of e.g. electrical machines. Lagrange multipliers are applied to ensure the continuity of the field across the non-conforming interface. A previously proposed approach is extended by time stepping methods to consider eddy-currents. In this paper, the formulation is presented and applied to a benchmark problem to validate the approach.

Keywords: Sliding interfaces, lagrange multiplier, mortar method, electrical machine, eddy-currents

DOI: 10.3233/JAE-2004

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 51, no. s1, pp. S167-S172, 2016