{"id":285322,"date":"2023-05-23T15:15:06","date_gmt":"2023-05-23T15:15:06","guid":{"rendered":"\/forum\/forums\/topic\/modal-different-frequencies-when-equipment-is-turned\/"},"modified":"2023-05-23T15:15:06","modified_gmt":"2023-05-23T15:15:06","slug":"modal-different-frequencies-when-equipment-is-turned","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/modal-different-frequencies-when-equipment-is-turned\/","title":{"rendered":"Modal : Different frequencies when equipment is turned"},"content":{"rendered":"<p>Hi,<\/p>\n<p>I am posting because I have a problem with my modal boxes.<\/p>\n<p>First, I&#8217;ve got a static structural box where my equipment is pressured and where the screws have bolt pretension. Then, I link a modal box so that my static structural is my pre-stress environment.<\/p>\n<p>Then, I copy my two boxes and I rotate my equipment of 45&deg;. Then I perform my static structural and my modal. But, I don&#8217;t have the same frequencies between my two modal boxes (without rotation and with 45&deg; rotation).<\/p>\n<p>When I copied, I didn&#8217;t change anything. Something must be changing when I rotate my equipment but I can&#8217;t find what.<\/p>\n<p>I have two joints in my models but the local coordinate systems are the same.<\/p>\n<p>Does someone have an idea?<\/p>\n<p>&nbsp;<\/p>\n<p>Thank you,<\/p>\n","protected":false},"template":"","class_list":["post-285322","topic","type-topic","status-closed","hentry","topic-tag-Modal_Analysis-1","topic-tag-frequency","topic-tag-joint"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["45771","240"],"_bbp_author_ip":["23.217.200.71"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["323"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["285322"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","45771"],"_bbp_voice_count":["2"],"_bbp_reply_count":["6"],"_bbp_last_reply_id":["285772"],"_bbp_last_active_id":["285772"],"_bbp_last_active_time":["2023-05-25 15:31:50"]},"test":"veral"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/285322","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\/285322\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=285322"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}