{"id":456040,"date":"2026-04-08T14:55:37","date_gmt":"2026-04-08T14:55:37","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/damping-effect-unwanted\/"},"modified":"2026-04-08T14:55:37","modified_gmt":"2026-04-08T14:55:37","slug":"damping-effect-unwanted","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/damping-effect-unwanted\/","title":{"rendered":"Damping effect unwanted"},"content":{"rendered":"<p>&lt;p&gt;Hello,&lt;\/p&gt;&lt;p&gt;I am trying a simple model of beams, and a damping effect is appearing although no visable card including damping is used. The beam is modelled wiht MAT_SPOTWELD.&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/04\/08-04-2026-1775659564-mceclip0.png\" width=\"448\" height=\"177\" \/>&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/04\/08-04-2026-1775659956-mceclip1.png\" width=\"415\" height=\"333\" \/>&lt;\/p&gt;&lt;p&gt;This are the forces in the SPC at the start of the beam:&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/04\/08-04-2026-1775660039-mceclip2.png\" width=\"691\" height=\"349\" \/>&lt;\/p&gt;&lt;p&gt;How is the force reduced? Is due to artificial damping due to numerical reasons?&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-456040","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27814"],"_bbp_topic_id":["456040"],"_bbp_author_ip":["209.206.24.190"],"_bbp_last_reply_id":["456326"],"_bbp_last_active_id":["456326"],"_bbp_last_active_time":["2026-04-13 08:18:47"],"_bbp_reply_count":["5"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["494509","58821"],"_btv_view_count":["115"],"_bbp_topic_status":["unanswered"],"_bbp_subscription":["58821","494509"]},"test":"1b5a0780a4ef75b56c66f5985f43b4c90b828806"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/456040","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\/456040\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=456040"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}