{"id":37236,"date":"2019-08-20T21:39:52","date_gmt":"2019-08-20T21:39:52","guid":{"rendered":"\/forum\/forums\/topic\/acoustic-systems-in-ansys\/"},"modified":"2019-08-20T21:39:52","modified_gmt":"2019-08-20T21:39:52","slug":"acoustic-systems-in-ansys","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/acoustic-systems-in-ansys\/","title":{"rendered":"Acoustic systems in ansys"},"content":{"rendered":"<p>I find it hard to find tutorials on ansys acoustic systems. I need to run modal analysis and harmonic analysis to get frequency response(pressure) on a body with FSI that is excited sinusoidally. I keep running into issues when acoustic body(air) is introduced in modal(Acoustic modal) as sans that(modal) it seems to work but runs to a dead end when connected to harmonic. Or is it fine if I neglect the air contained in the structure?Any help would be greatly appreciated. I have attached the structure i have and its internal geometry.<\/p>\n<p><\/p>\n<p>I am using Ansys 19.1 student version and have the acoustic extension<img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/9ee339c7-d1df-4ec8-bcf5-aa4d01637890\/c1ca401b-ebdb-4ef6-90db-aaaf01655810_capture1.jpg?width=690&amp;upscale=false\" alt=\"\"><\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/9ee339c7-d1df-4ec8-bcf5-aa4d01637890\/2a18eb2f-ccbd-49eb-a48d-aaaf0165867d_capture.jpg?width=690&amp;upscale=false\" alt=\"\"><\/p>\n","protected":false},"template":"","class_list":["post-37236","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["9412"],"_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","0"],"_btv_view_count":["676"],"_bbp_subscription":["240174"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["37236"],"_bbp_forum_id":["27794"],"_bbp_engagement":["4413","165323"],"_bbp_voice_count":["2"],"_bbp_reply_count":["4"],"_bbp_last_reply_id":["92940"],"_bbp_last_active_id":["92940"],"_bbp_last_active_time":["2019-08-26 18:52:50"]},"test":"hhusker"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/37236","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\/37236\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=37236"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}