{"id":359432,"date":"2024-03-28T12:37:07","date_gmt":"2024-03-28T12:37:07","guid":{"rendered":"\/forum\/forums\/topic\/negative-stiffness-in-x-position-between-pm-and-steel-stator\/"},"modified":"2024-03-28T12:37:07","modified_gmt":"2024-03-28T12:37:07","slug":"negative-stiffness-in-x-position-between-pm-and-steel-stator","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/negative-stiffness-in-x-position-between-pm-and-steel-stator\/","title":{"rendered":"Negative stiffness in x-position between PM and steel stator"},"content":{"rendered":"<p>Hi all,<\/p>\n<p>I&#8217;m trying to simulate the negative stiffness graph in my interior permanent magnet motor. The result should be linear as the force should be increase when the PM is near the stator teeth. I use the rotor base material as epoxy and I also changing the material to steel but the behavior is still the same. Could anyone help on this point?<\/p>\n<p>&nbsp;<\/p>\n<p>Thank you so much.<\/p>\n<p>Anunda<\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/28-03-2024-1711629402-Screenshot 2024-03-28 193609.png\" alt=\"\"><\/p>\n","protected":false},"template":"","class_list":["post-359432","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["296090","50680"],"_bbp_author_ip":["23.206.193.146"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["324"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["359432"],"_bbp_forum_id":["27793"],"_bbp_engagement":["50680","296090"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["360083"],"_bbp_last_active_id":["360083"],"_bbp_last_active_time":["2024-04-02 16:09:03"]},"test":"anunda-chustudent-mahidol-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/359432","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\/359432\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=359432"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}