{"id":32261,"date":"2018-12-20T21:40:42","date_gmt":"2018-12-20T21:40:42","guid":{"rendered":"\/forum\/forums\/topic\/modal-analysis-of-electric-machine\/"},"modified":"2018-12-20T21:40:42","modified_gmt":"2018-12-20T21:40:42","slug":"modal-analysis-of-electric-machine","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/modal-analysis-of-electric-machine\/","title":{"rendered":"Modal Analysis of Electric Machine"},"content":{"rendered":"<p>Hello,<\/p>\n<p><\/p>\n<p>I&#8217;m trying to do modal analysis of an electric machine. the results that I&#8217;m getting are way off compared to experimental results that I&#8217;ve. I&#8217;ll try and narrate the stuff that I&#8217;m doing. Let me know if I&#8217;m doing anything wrong or should I be doing it differently .<\/p>\n<p><\/p>\n<ul><\/p>\n<li>stator, winding, rotor assembly including shaft, bearing and housing assembly all have been modeled in the simulation.<\/li>\n<p><\/p>\n<li>I&#8217;m trying to simulate with the exact weight as in the prototype by tweaking the mass densities a bit.<\/li>\n<p><\/p>\n<li>all the parts have proper material assigned to them.<\/li>\n<p><\/p>\n<li>Considering isotropic elasticity.&nbsp;<\/li>\n<p><\/p>\n<li>Fixed support at the location of the bolts.<\/li>\n<p><\/p>\n<li>the outer surface of the bearings have been given a friction less support. (Is this the right thing to do ?)&nbsp; &nbsp;<\/li>\n<p>\n<\/ul>\n<p><\/p>\n<p>I don&#8217;t get any errors or warning while running the model. It&#8217;s just that the results are off. I&#8217;m very concerned about the way I&#8217;m giving a friction less support to the bearings. I&#8217;m not sure if that&#8217;s the correct way to do it.&nbsp;<\/p>\n<p><\/p>\n<p>Any suggestions or reference or reasoning what might be going wrong here would be highly appreciated.&nbsp;<\/p>\n<p><\/p>\n<p>And thank you for reading this far. Let me know what you think.<\/p>\n<p><\/p>\n<p>Best<\/p>\n<p><\/p>\n<p>Shuvajit&nbsp;&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-32261","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["4433"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0","0","0","0","0"],"_btv_view_count":["923"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["32261"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","156586","158485","163641"],"_bbp_voice_count":["4"],"_bbp_reply_count":["10"],"_bbp_last_reply_id":["82053"],"_bbp_last_active_id":["82053"],"_bbp_last_active_time":["2019-04-04 10:05:17"]},"test":"shuvajit_1462"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/32261","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/32261\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=32261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}