{"id":396247,"date":"2024-12-04T10:57:40","date_gmt":"2024-12-04T10:57:40","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/problems-regarding-core-loss-and-torque-of-axial-flux-motor-using-maxwell-and-rm\/"},"modified":"2024-12-04T10:57:40","modified_gmt":"2024-12-04T10:57:40","slug":"problems-regarding-core-loss-and-torque-of-axial-flux-motor-using-maxwell-and-rm","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/problems-regarding-core-loss-and-torque-of-axial-flux-motor-using-maxwell-and-rm\/","title":{"rendered":"Problems regarding core loss and torque of axial flux motor using maxwell and rm"},"content":{"rendered":"<p>&lt;p&gt;Hi,&nbsp;I am trying to create a basic structure using rmxprt first and analyze the core loss of an axial flux motor using maxwell.&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/12\/04-12-2024-1733309840-rmxprt option.png\" alt=\"\" width=\"638\" height=\"337\" \/>&lt;\/p&gt;&lt;p&gt;The equation for three-phase AC is as follows:&lt;\/p&gt;&lt;p&gt;54*sin(2*pi*50*time)&lt;br&gt;54*sin(2*pi*50*time-2*pi\/3)&lt;br&gt;54*sin(2*pi*50*time-4*pi\/3)&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/12\/04-12-2024-1733309531-3 phase current.png\" alt=\"\" width=\"500\" height=\"238\" \/>&lt;\/p&gt;&lt;p&gt;And the permanent magnet&#8217;s magnetization and number of poles are automatically specified in rmxprt,&nbsp;&lt;\/p&gt;&lt;p&gt;and the core loss coefficients are also defined, and in excitation, the set core loss is checked for the stator and rotor.&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/12\/04-12-2024-1733309572-steel core loss coefficients.png\" alt=\"\" width=\"364\" height=\"385\" \/> &nbsp;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/12\/04-12-2024-1733309605-Set core loss.png\" alt=\"\" width=\"390\" height=\"380\" \/>&lt;\/p&gt;&lt;p&gt;Looking at the picture, it looks like the 3-phase AC is properly authorized.&lt;\/p&gt;&lt;p&gt;However, I&#8217;m wondering if the core loss seen in the picture is only the loss of the stator and rotor.&lt;\/p&gt;&lt;p&gt;And in the setup, I think you need to check the item called &ldquo;View core loss by object?&rdquo; to be able to view the loss of each object, such as the stator and rotor, separately, but I don&rsquo;t have that.&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/12\/04-12-2024-1733309655-Solve set up.png\" alt=\"\" width=\"450\" height=\"439\" \/>&lt;\/p&gt;&lt;p&gt;And if you look at the torque graph, you can see a negative average value.&nbsp;&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/12\/04-12-2024-1733309685-Torque plot.png\" alt=\"\" width=\"796\" height=\"366\" \/> <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/12\/04-12-2024-1733309702-Core loss plot.png\" alt=\"\" width=\"769\" height=\"363\" \/>&lt;\/p&gt;&lt;p&gt;In conclusion, how can I see the core loss graph for each object (e.g. stator, rotor)? And how can I get positive average torque instead of negative average torque?&lt;\/p&gt;&lt;p&gt;Also, There is no core loss item in the calculator (Quantity), only total loss.&lt;\/p&gt;&lt;p&gt;I&#8217;ve searched the manual and other places, but I just can&#8217;t find the answer.&lt;\/p&gt;&lt;p&gt;&#8221;Thank you for taking the time and effort to read through my lengthy message&mdash;I truly appreciate your patience and attention to detail.&#8221;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-396247","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi, I am trying to create a basic structure using rmxprt first and analyze the core loss of an axial flux motor using maxwell.The equation for three-phase AC is as 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