{"id":450432,"date":"2026-01-14T19:26:37","date_gmt":"2026-01-14T19:26:37","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/advice-for-a-transient-analysis-of-a-spherical-electrical-machine\/"},"modified":"2026-01-14T19:26:37","modified_gmt":"2026-01-14T19:26:37","slug":"advice-for-a-transient-analysis-of-a-spherical-electrical-machine","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/advice-for-a-transient-analysis-of-a-spherical-electrical-machine\/","title":{"rendered":"Advice for a transient analysis of a spherical electrical machine"},"content":{"rendered":"<p>&lt;p&gt;Hello, I am attempting to model a spherical permanent magnet generator in Ansys Maxwell and am relatively new to the software. The model, as pictured, works with a polyhedron (faceted cylinder) shaped band object but ideally I would use a spherically-shaped band object so that coils can wrap around the spherical face in a way which would intersect a polyhedron. I have had to import an icosphere as a step. file as there is no option for creating this shape in Maxwell (an icosphere is to a sphere what a polyheron is to a cylider &#8211; faceted). I am however coming to erros, namely with &#8216;mesh mapping&#8217; when switching to using the icospherical band. From my research, this could be to do with the fact that the icosphere is comprised of many small triangles thus there is not a consistent angle between each facet as you go around the circumference, as there is with a polyhedron. I have also attempted to refine the icosphere by creating it with finer facets, this has been to no avail although I do have capacity to go finer if anyone thinks this could be worth pushing. Another consideration is the &#8216;non-spherical rotation&#8217;, I&#8217;m not sure if a spherical band would warrant this being enabled or not &#8211; the rotation is cylindrical as in about the central axis of the band, but I believe the mesh will be changing as it rotates due to the triangles (as opposed to nice, simple rectangles of a polyhedron. I&#8217;d really appreciate some help! Thank you<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/01\/14-01-2026-1768418689-Screenshot 2026-01-14 192435.png\" alt=\"Icosphere band surrounds the spherical rotor, 4 curved coils on the outside.\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-450432","topic","type-topic","status-publish","hentry","topic-tag-AnsysMaxwellelectronics-1","topic-tag-3d-maxwell-simulation","topic-tag-ansysmaxwelltransient","topic-tag-maxwell","topic-tag-motion-band-1","topic-tag-sphericalgeometry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hello, I am attempting to model a spherical permanent magnet generator in Ansys Maxwell and am relatively new to the software. 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