{"id":393424,"date":"2024-11-09T13:22:26","date_gmt":"2024-11-09T13:22:26","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/393424\/"},"modified":"2024-11-09T13:22:26","modified_gmt":"2024-11-09T13:22:26","slug":"393424","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/393424\/","title":{"rendered":"Reply To: Mode is 0 and circular beams"},"content":{"rendered":"<p>&lt;p&gt;The wheel is free to spin on the shaft.&nbsp; That means there is zero stiffness in the rotational direction, which results in a zero frequency.&nbsp; After you change the revolute joint to a fixed joint, the wheel now has a stiffness to ground in the rotational direction and you get a non-zero frequency.&nbsp; I explained how the intertial load of rotational velocity works in your <a href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/rotation-velocity-in-static-structural\/\">other discussion<\/a>.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-393424","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/393424","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\/393424\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=393424"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}