{"id":159831,"date":"2021-06-25T04:37:04","date_gmt":"2021-06-25T04:37:04","guid":{"rendered":"\/forum\/forums\/topic\/acoustic-physics-behind-the-analysis\/"},"modified":"2023-05-11T06:59:25","modified_gmt":"2023-05-11T06:59:25","slug":"acoustic-physics-behind-the-analysis","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/acoustic-physics-behind-the-analysis\/","title":{"rendered":"Acoustic &#8211; Physics behind the Analysis"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hi,<\/p>\n<p>I seen many videos they doing acoustic harmonic analysis. <\/p>\n<p>1st they do Modal Analysis <\/p>\n<p>2nd Harmonic response analysis<\/p>\n<p>3rd Harmonic Acoustics<\/p>\n<p>Modal analysis results is given to Harmonic response. Then harmonic response result is given as an input to harmonic acoustic.<\/p>\n<p>(Harmonic Response results gives Imported velocity to harmonic acoustic)<\/p>\n<p>Now how they find the dB levels using the velocity values? What is the equation behind it to calculate it? <\/p>\n<p>General Formula for dB = log (pressure difference)<\/p>\n<p>In ansys how they calculate the dB using the Velocity one? Please say the physics and calculation behind of that analysis.<\/p>\n","protected":false},"template":"","class_list":["post-159831","topic","type-topic","status-closed","hentry","topic-tag-acoustics","topic-tag-ansys-workbench","topic-tag-mechanical","topic-tag-structural","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":["1766"],"_bbp_likes_count":["0"],"_bbp_subscription":["249444","268280","58821"],"_bbp_status":["publish"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["159831"],"_bbp_forum_id":["27791"],"_bbp_engagement":["58821","175267","268280"],"_bbp_voice_count":["3"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["283395"],"_bbp_last_active_id":["283395"],"_bbp_last_active_time":["2023-05-11 07:00:13"]},"test":"prabhumanickam"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/159831","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\/159831\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=159831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}