{"id":29163,"date":"2018-04-25T11:25:04","date_gmt":"2018-04-25T11:25:04","guid":{"rendered":"\/forum\/forums\/topic\/harmonic-analysis-for-acoustics\/"},"modified":"2018-04-25T11:25:04","modified_gmt":"2018-04-25T11:25:04","slug":"harmonic-analysis-for-acoustics","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/harmonic-analysis-for-acoustics\/","title":{"rendered":"Harmonic Analysis for Acoustics"},"content":{"rendered":"<p>Hi, I am trying to find the acoustic characterization of a perforated plate, for this, I have created an impedance tube and put a perforated plate in that with some air cavity. I am using ACT module and boundary conditions, but not getting any result.<\/p>\n<p><\/p>\n<p>My objective is to find the harmonic response of perforated plate, ie how much sound is absorbed if the sound is passed through it, (to get a graph between the absorption coefficient and frequency.)&nbsp;<\/p>\n<p><\/p>\n<p>I have attached some pics of my Boundary condition, load, and steps followed.<\/p>\n<p><\/p>\n<p>Kindly help me.<\/p>\n<p><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/63ce85ad-14e2-4ef0-b69d-a8c4007004f3\/26753e73-0843-47ca-b852-a8cd00bc2389_untitled.jpg?width=690&amp;upscale=false\" alt=\"Image with model and step\" width=\"590\" height=\"332\"><\/p>\n","protected":false},"template":"","class_list":["post-29163","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["1330"],"_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":["1","1","1","1","1"],"_btv_view_count":["4928"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["29163"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","156751","158819","160716","173883"],"_bbp_voice_count":["5"],"_bbp_reply_count":["30"],"_bbp_last_reply_id":["113016"],"_bbp_last_active_id":["113016"],"_bbp_last_active_time":["2020-04-30 00:37:53"]},"test":"216dd11"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/29163","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\/29163\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=29163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}