{"id":360958,"date":"2024-04-08T05:16:34","date_gmt":"2024-04-08T05:16:34","guid":{"rendered":"\/forum\/forums\/topic\/natural-frequency-of-cylindrical-shells\/"},"modified":"2024-04-08T06:34:47","modified_gmt":"2024-04-08T06:34:47","slug":"natural-frequency-of-cylindrical-shells","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/natural-frequency-of-cylindrical-shells\/","title":{"rendered":"Natural frequency of cylindrical shells"},"content":{"rendered":"<p>I&#8217;m running a modal analysis of a cylindrical shell to obtain its natural frequencies for different modes. To start with, I&#8217;m trying to run a simulation for verifictaion with existing results in papers. I&#8217;ve selected to following results. (source- <a href=\"https:\/\/cdn.intechopen.com\/pdfs\/39992\/InTech-Vibrations_of_cylindrical_shells.pdf\" target=\"_blank\" rel=\"noopener\">Vibrations of Cylindrical Shells<\/a>)<\/p>\n<p>&nbsp;<img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/04\/08-04-2024-1712552821-Ques1attchment1.PNG\" alt=\"\"><\/p>\n<p>While I know the meaning of the terms m and n, I can&#8217;t get around as to how do I input these when running the modal analysis.<\/p>\n<p>When I run the simulations myself for these dimensions and material properties, I&#8217;m getting the following results.<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/04\/08-04-2024-1712553126-attachment2.PNG\" alt=\"\"><\/p>\n<p>To replicate the clamped-clamped boundary condition, I&#8217;ve added fixed support in both the end faces.<br \/>I&#8217;m unable to get similar results to verify my working.&nbsp;<\/p>\n<p>What am I doing wrong, and how to procced.<\/p>\n<p>Thanks in advance for help<\/p>\n","protected":false},"template":"","class_list":["post-360958","topic","type-topic","status-closed","hentry","topic-tag-Modal_Analysis-1","topic-tag-frequency","topic-tag-natural-frequency","topic-tag-shell"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["339437","58821"],"_bbp_author_ip":["23.206.193.41"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["328"],"_bbp_topic_status":["unanswered"],"_edit_lock":["1712554015:288581"],"_bbp_status":["publish"],"_bbp_topic_id":["360958"],"_bbp_forum_id":["27791"],"_bbp_engagement":["58821","339437"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["360972"],"_bbp_last_active_id":["360972"],"_bbp_last_active_time":["2024-04-08 06:34:27"]},"test":"a1877679adelaide-edu-au"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/360958","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\/360958\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=360958"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}