{"id":162204,"date":"2021-09-13T15:47:21","date_gmt":"2021-09-13T15:47:21","guid":{"rendered":"\/forum\/forums\/topic\/modal-analysis-of-rotor-bearing-system-in-workbench\/"},"modified":"2021-09-14T23:28:57","modified_gmt":"2021-09-14T23:28:57","slug":"modal-analysis-of-rotor-bearing-system-in-workbench","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/modal-analysis-of-rotor-bearing-system-in-workbench\/","title":{"rendered":"Modal Analysis of Rotor Bearing System in Workbench"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>I am performing a Modal analysis of a Rotor Bearing system.<\/p>\n<p>I did the stability analysis by writing my own fem formulation code in Matlab and got the eigenfrequencies and the mode shapes.<\/p>\n<p>Then I performed the Modal analysis using APDL, and the results were in close agreement screenshot attached below.<\/p>\n<p>Finally, I did the simulation in Workbench for the same setup and boundary conditions by assuming the solid shaft as a beam element, but the results didn&#039;t match.<\/p>\n<p>The problem is that my main setup is quite complex, so that I will be using Workbench; therefore, I was first validating the result for a simple setup, but it did not match at all.<\/p>\n<p>I request ANSYS staff and the users who have worked on such a setup to look into this.<\/p>\n<div class=\"embedExternal embedImage\">\n<div class=\"embedExternal-content\">\n<a class=\"embedImage-link\" href=\"\/forum\/wp-content\/uploads\/forum-uploads\/352\/FCHJABX75IXQ.jpg\" rel=\"nofollow noopener\" target=\"_blank\"><br \/>\n<img decoding=\"async\" class=\"embedImage-img\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/352\/FCHJABX75IXQ.jpg\" alt=\"Capture.JPG\" \/><br \/>\n<\/a><\/p>\n","protected":false},"template":"","class_list":["post-162204","topic","type-topic","status-closed","hentry","topic-tag-apdl","topic-tag-eigenfrequency-1","topic-tag-modal","topic-tag-rotor-1","topic-tag-workbench"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":[""],"_bbp_old_reply_author_name_id":["Anonymous"],"_bbp_old_is_reply_anonymous_id":["false"],"_btv_view_count":["2450"],"_bbp_likes_count":["0"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["162204"],"_bbp_forum_id":["27791"],"_bbp_engagement":["32275","166004","197848"],"_bbp_voice_count":["3"],"_bbp_reply_count":["9"],"_bbp_last_reply_id":["191953"],"_bbp_last_active_id":["191953"],"_bbp_last_active_time":["2021-09-14 23:28:57"]},"test":"ppaattiill74gmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/162204","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\/162204\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=162204"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}