{"id":237201,"date":"2022-10-07T12:53:21","date_gmt":"2022-10-07T12:53:21","guid":{"rendered":"\/forum\/forums\/topic\/modal-analysis-with-pre-stress\/"},"modified":"2022-10-07T12:53:21","modified_gmt":"2022-10-07T12:53:21","slug":"modal-analysis-with-pre-stress","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/modal-analysis-with-pre-stress\/","title":{"rendered":"Modal analysis with pre-stress"},"content":{"rendered":"<p>My starting point is a plate as follows<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2022\/10\/07-10-2022-1665146306-mceclip0.png\" width=\"331\" height=\"105\"><\/p>\n<p>I need to compute the stresses when the plate es deformed into a cylinder shape. For that purpose, I have run a simulation of Static Structural.<\/p>\n<p>After knowing the stresses, I need to compute the natural frequencies, so I have created the following tree:<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2022\/10\/07-10-2022-1665146540-mceclip1.png\"><\/p>\n<p>The stresses seem to be transferred, although I have two problems:<\/p>\n<p>1) The geometry that is passed to the Modal seems to be the undeformed one.<\/p>\n<p>2) I cannot add additional supports. In the modal analysis all of the four edges should be fixed, while in the Static Structural I cannot do that (because if not, the structure does not deform)<\/p>\n<p>I have tried another strategy such as this one:<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2022\/10\/07-10-2022-1665146833-mceclip2.png\"><\/p>\n<p>In this case, the deformed geometry is transferred, and I can add new supports, but the stresses are not transferred.<\/p>\n<p>Is there any solution to my problem?<\/p>\n<p>&nbsp;<\/p>\n<p>Thank you<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-237201","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["191131","32680","223465"],"_bbp_author_ip":["23.48.94.52"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["7105"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["237201"],"_bbp_forum_id":["27791"],"_bbp_engagement":["32680","191131","223465"],"_bbp_voice_count":["3"],"_bbp_reply_count":["6"],"_bbp_last_reply_id":["245104"],"_bbp_last_active_id":["245104"],"_bbp_last_active_time":["2022-12-29 17:33:54"]},"test":"aitor-amatriaincern-ch"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/237201","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\/237201\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=237201"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}