{"id":278946,"date":"2023-04-11T18:14:11","date_gmt":"2023-04-11T18:14:11","guid":{"rendered":"\/forum\/forums\/reply\/278946\/"},"modified":"2023-04-11T23:01:52","modified_gmt":"2023-04-11T23:01:52","slug":"278946","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/278946\/","title":{"rendered":"Reply To: Application of base acceleration to a spring-mass system"},"content":{"rendered":"<p>&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;Thank you for your reply Dr. Koutras. I will work to fix the implicit then.&lt;\/p&gt;&lt;p&gt;I have two more questions about the problem:&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n<ul>\n<li>the analysis did not &ldquo;perfectly&rdquo; overlapped even using 1\/20*T. Should I also consider that as &ldquo;okay&rdquo;?<\/li>\n<\/ul>\n<p>&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/04\/11-04-2023-1681236480-AnalyticvsDynaExplicit.png\" alt=\"\" width=\"822\" height=\"388\" \/>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n<ul>\n<li>When should I use the keyword deck *BOUNDARY_PRESCRIBED_MOTION rather than *LOAD_BODY_X? As in my small experience, I have seen that using the former deck (setting VAD=1) the whole system moves away from the initial coordinates, so I get a response which increases as the time increases.<\/li>\n<\/ul>\n","protected":false},"template":"","class_list":["post-278946","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/278946","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/278946\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=278946"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}