Computation of Movement Involved Eddy Current Field Using Interface Adaptation of Overlapping Mesh

The calculation of the eddy current field in the motional scenario is a difficult problem. Due to the movement of conductors, the original mesh may be largely deformed. For engineering models with complex geometric shapes, re-meshing is a time-consuming task for each time step iteration. To avoid re-meshing, this article proposes a new method based on interface adaptation of overlapping non-conforming meshes. Without changing the topology of the background mesh, the invasion interface is transformed into a non-conforming interface between the moving parts, avoiding generating arbitrarily small or irregular cutting elements. Furthermore, the mortar technique is used to deal with the field computation involving a non-conforming interface.