A novel tetrahedral mesh generation method for rotating machines including end-coil region

In this paper, a novel method for generating tetrahedral finite-element meshes suitable for the 3D finite element analysis of rotating machines is presented. The proposed method enables the easy development of 3D meshes for various rotating machines, especially in the end-coil region and the surrounding air region. Tessellation of the 3D region is made possible by simple extension of a previously generated 2D triangular mesh, used as a model mesh, into the third dimension. The end-coil region is meshed by connecting the previously developed patterned submeshes. For meshing the inter end-coil air region, an additional node input method is employed, followed by the Delaunay triangulation. The simplified meshing algorithm and examples of developed 3D meshes using the proposed method are presented.