{"id":188116,"date":"2021-08-07T19:51:07","date_gmt":"2021-08-07T19:51:07","guid":{"rendered":"\/forum\/forums\/reply\/188116\/"},"modified":"2021-08-07T20:39:22","modified_gmt":"2021-08-07T20:39:22","slug":"188116","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/188116\/","title":{"rendered":"Reply To: How can I simulate a vibration force on a steel structure and get nodal accelerations as time series"},"content":{"rendered":"<p>When you say the excitation is in the y axis, is that in the plane of the ground or is that vertical?<br \/>\nPlease insert an image into your reply showing the coordinate frame of the model in ANSYS.<br \/>\nIs the y axis of the table the same as the y axis of the model in ANSYS?  If not please insert another image showing the coordinate frame of the table.<br \/>\nSince you have a physical structure mounted to a table, the table is being driven by an input signal. The input signal could be a Sine Sweep. That means there is an amplitude A and the frequency sweeps from a low value to a high value.  It would be good to know these numbers.<br \/>\nThe first thing you should do is run a Modal analysis on your building frame. What is the frequency of the first mode?<\/p>\n","protected":false},"template":"","class_list":["post-188116","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/188116","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\/188116\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=188116"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}