{"id":390129,"date":"2024-10-16T23:19:21","date_gmt":"2024-10-16T23:19:21","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/help-with-insufficient-supports-for-a-hirth-joint-analysis\/"},"modified":"2024-11-22T17:09:52","modified_gmt":"2024-11-22T17:09:52","slug":"help-with-insufficient-supports-for-a-hirth-joint-analysis","status":"answered","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/help-with-insufficient-supports-for-a-hirth-joint-analysis\/","title":{"rendered":"Help with insufficient supports for a Hirth joint analysis"},"content":{"rendered":"<p>&lt;p class=&#8221;MsoNormal&#8221;&gt;I&#8217;m new to ansys and struggling to get my simulation to solve for an analysis on a Hirth joint. I am attempting to simulate a overhung impeller connected to a drive shaft via a Hirth. I would like to be able to utilize a frictional or frictonless connection at the Hirth joint. Even running a simplified case, I get errors regarding the internal solution magnitude limit being exceeded &#8211; except when running a bonded or &#8220;no separation&#8221; contact between the two bodies joined by the Hirth connection. Is there a support I should be using that could solve my problem? I would prefer to not have the body supported using a fixed support, as I plan on simulating thermal expansion as well.&nbsp;&lt;br&gt;&lt;br&gt;The problem persists when using both a fixed support on the end of the body and when using a combination of cylindrical and displacement supports. Any help would be greatly appreciated.&lt;br&gt;&lt;br&gt;Here is an image of my setup:&lt;br&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/16-10-2024-1729120274-mceclip0.png\" \/>&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/16-10-2024-1729120428-mceclip2.png\" \/>&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/16-10-2024-1729120353-mceclip1.png\" \/>&lt;br&gt;&lt;br&gt;The node accomanying the error seems unproblematic:&lt;br&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/16-10-2024-1729120724-mceclip3.png\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-390129","topic","type-topic","status-answered","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["471156","240"],"_bbp_author_ip":["129.162.184.102"],"_btv_view_count":["99"],"_bbp_topic_status":["answered"],"_bbp_topic_id":["390129"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","471156"],"_bbp_voice_count":["2"],"_bbp_last_reply_id":["390304"],"_bbp_last_active_id":["390304"],"_bbp_last_active_time":["2024-10-17 21:18:19"]},"test":"zachary-brownswri-org"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/390129","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":1,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/390129\/revisions"}],"predecessor-version":[{"id":395008,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/390129\/revisions\/395008"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=390129"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}