{"id":456631,"date":"2026-04-17T19:52:37","date_gmt":"2026-04-17T19:52:37","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/modal-analysis-25\/"},"modified":"2026-04-17T19:52:37","modified_gmt":"2026-04-17T19:52:37","slug":"modal-analysis-25","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/modal-analysis-25\/","title":{"rendered":"modal analysis"},"content":{"rendered":"<p>&lt;p&gt;Im having low natural frequencies from 14hz to 330 hz (120 modes) for a frame holding 80 kN load from turbomachinery. It is too low , can you please help me on grey areas and possible causes of this, however mesh convergence has been acheived&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-456631","topic","type-topic","status-publish","hentry","topic-tag-Modal_Analysis-1","topic-tag-0HzNaturalFrequenciesModalAnalysisRailwayBridge-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27791"],"_bbp_topic_id":["456631"],"_bbp_subscription":["532041","240"],"_bbp_author_ip":["110.38.254.55"],"_bbp_last_reply_id":["456647"],"_bbp_last_active_id":["456647"],"_bbp_last_active_time":["2026-04-18 12:21:53"],"_bbp_reply_count":["1"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_btv_view_count":["24"],"_bbp_topic_status":["unanswered"],"_bbp_engagement":["532041","240"],"_edit_lock":["1776455584:532041"]},"test":"mujqureshi406gmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/456631","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\/456631\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=456631"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}