{"id":393284,"date":"2024-11-08T09:31:49","date_gmt":"2024-11-08T09:31:49","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/dynamic_relaxation-and-restart\/"},"modified":"2024-11-08T09:31:49","modified_gmt":"2024-11-08T09:31:49","slug":"dynamic_relaxation-and-restart","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/dynamic_relaxation-and-restart\/","title":{"rendered":"DYNAMIC_RELAXATION and RESTART"},"content":{"rendered":"<p>&lt;p&gt;I am applying dynamic relaxation in my model, with gravity and axial forces imposed in the first step. Although the relevant parameters are set as required, some nodes still exhibit non-zero velocities at the final stage. Moreover, when restarting the analysis for the second step, I observed a sudden increase in node velocities at the beginning, even before applying the new load. I suspect the dynamic relaxation might not have been effectively applied, and the process is also taking a considerable amount of time. Could you advise on how to optimize the dynamic relaxation method, or suggest alternative approaches?<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/08-11-2024-1731058112-mceclip0.png\" width=\"792\" height=\"415\" \/><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/08-11-2024-1731058188-mceclip1.png\" width=\"755\" height=\"401\" \/><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/08-11-2024-1731058206-mceclip2.png\" width=\"753\" height=\"400\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-393284","topic","type-topic","status-publish","hentry","topic-tag-lsdyna"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":["62.192.175.76"],"_btv_view_count":["280"],"_bbp_topic_status":["unanswered"],"_bbp_subscription":["13937"],"_bbp_topic_id":["393284"],"_bbp_forum_id":["27796"],"_bbp_engagement":["13937","23348"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["393825"],"_bbp_last_active_id":["393825"],"_bbp_last_active_time":["2024-11-12 14:36:48"]},"test":"373352238qq-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/393284","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\/393284\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=393284"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}