{"id":163530,"date":"2021-10-29T09:41:12","date_gmt":"2021-10-29T09:41:12","guid":{"rendered":"\/forum\/forums\/topic\/how-to-couple-nodes-to-an-unused-node-and-applied-a-load-to-it\/"},"modified":"2021-10-29T10:56:20","modified_gmt":"2021-10-29T10:56:20","slug":"how-to-couple-nodes-to-an-unused-node-and-applied-a-load-to-it","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-couple-nodes-to-an-unused-node-and-applied-a-load-to-it\/","title":{"rendered":"How to couple nodes to an unused node and applied a load to it?"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>I am modelling a hollow tube with shell elements for a stub column test. <\/p>\n<p>I want to apply the loads\/displacements to a central node at the top instead of to the edge of the tube.<\/p>\n<p>The central node is the master node, and the nodes at the edge are the slave nodes.<\/p>\n<p>When solving, I get the error &quot;Specified degree of freedom constraint at unused node&quot;. I understand this is because the master node is not attached to any element.<\/p>\n<p>How can I solve this error? I want the load\/displacement applied to the master node to be transferred to the nodes at the edge of the tube.<\/p>\n<div class=\"embedExternal embedImage\">\n<div class=\"embedExternal-content\">\n<a class=\"embedImage-link\" href=\"\/forum\/wp-content\/uploads\/forum-uploads\/313\/EPJK8CNDME2Q.png\" rel=\"nofollow noopener\" target=\"_blank\"><br \/>\n<img decoding=\"async\" class=\"embedImage-img\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/313\/EPJK8CNDME2Q.png\" alt=\"Boundary conditions2.png\" \/><br \/>\n<\/a><\/p>\n","protected":false},"template":"","class_list":["post-163530","topic","type-topic","status-closed","hentry","topic-tag-constraint-issue","topic-tag-coupling","topic-tag-shell-and-tube-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":[""],"_bbp_old_reply_author_name_id":["Anonymous"],"_bbp_old_is_reply_anonymous_id":["false"],"_btv_view_count":["2527"],"_bbp_likes_count":["0"],"_bbp_subscription":["237675"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["163530"],"_bbp_forum_id":["27791"],"_bbp_engagement":["58821","237675"],"_bbp_voice_count":["2"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["196272"],"_bbp_last_active_id":["196272"],"_bbp_last_active_time":["2021-10-29 10:56:20"]},"test":"manuel-uruenaalumnos-upm-es"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/163530","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\/163530\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=163530"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}