{"id":39610,"date":"2019-12-14T15:25:25","date_gmt":"2019-12-14T15:25:25","guid":{"rendered":"\/forum\/forums\/topic\/parts-acting-separately-in-modal-analysis\/"},"modified":"2019-12-14T15:25:25","modified_gmt":"2019-12-14T15:25:25","slug":"parts-acting-separately-in-modal-analysis","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/parts-acting-separately-in-modal-analysis\/","title":{"rendered":"Parts Acting Separately in Modal Analysis"},"content":{"rendered":"

Hello everyone,<\/p>\n

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I am having difficulties in the modal analysis of simple structure(1- story building). I have imported geometry from autocad in which walls are separated parts. I set the materials and default mesh. I encountered some errors and warnings on the way but at the end i obtained frequencies and mode shapes. Even though frequencies are logical. Mode shapes are parts of building moving in absurd ways.( I am trying to obtain modes where all the structure moves in one way or bending).  My model is as follows. <\/p>\n

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\"\"<\/p>\n

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First two modes are below.<\/p>\n

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 1.mod<\/p>\n

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\"\"<\/p>\n

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2. mod<\/p>\n

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\"\"<\/p>\n

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I went up to 100 modes but none of them was whole structure’s mode. I analyzed for simple brick wall and got proper mode shapes . As shown below.<\/p>\n

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\"\"<\/p>\n

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Then, I thought it was something with contacts and i tried forming all structure as parts in design modeler and setting share topology but it did not change anything. <\/p>\n

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One of the warnings i faced was ‘at least one body has been found to have only 1 element in at least 2 directions’. But i managed to fix it by changing Geometry>element control>manual. Thought it would be helpful to share this because it was hard to find the solution.<\/p>\n

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Regards,<\/p>\n

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Zafer Y?lmaz<\/p>\n","protected":false},"template":"","class_list":["post-39610","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["11789"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["2021"],"_bbp_subscription":["245842"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["39610"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","171501","171568"],"_bbp_voice_count":["3"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["101092"],"_bbp_last_active_id":["101092"],"_bbp_last_active_time":["2019-12-18 06:17:52"]},"test":"zaferyilmaz"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/39610","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\/39610\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=39610"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}