{"id":167701,"date":"2022-03-24T15:17:16","date_gmt":"2022-03-24T15:17:16","guid":{"rendered":"\/forum\/forums\/topic\/compute-psd-transmissibility\/"},"modified":"2022-04-12T13:27:02","modified_gmt":"2022-04-12T13:27:02","slug":"compute-psd-transmissibility","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/compute-psd-transmissibility\/","title":{"rendered":"Compute PSD Transmissibility"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hi everyone,<\/p>\n<p>I&#039;m working on a project which involves a body suspended on a series of springs (COMBIN14 with k and c given through Real constants) and I need to perform a Spectrum Analysis. They gave me the PSD levels [G^2\/Hz] and I successfully performed the base eccitation. In order to use Miles&#039; eq. I extracted the RPSD value of RELATIVE acceleration @CoG in \/post26: is this the transmissibility I need? <\/p>\n<p>I also took a look at the &quot;RPSD values of fixed nodes in terms of ABSOLUTE acceleration&quot; MINUS &quot;RPSD values @CoG in terms of ABSOLUTE acceleration&quot; but I don&#039;t find a correlation with relative acceleration; what does this mean?<\/p>\n<p><\/p>\n<\/p>\n<p>Thank you for helping!<\/p>\n<p>Michele \ud83d\ude42<\/p>\n<div class=\"embedExternal embedImage\">\n<div class=\"embedExternal-content\">\n<a class=\"embedImage-link\" href=\"\/forum\/wp-content\/uploads\/forum-uploads\/978\/IQP72F1F1HHZ.png\" rel=\"nofollow noopener\" target=\"_blank\"><br \/>\n<img decoding=\"async\" class=\"embedImage-img\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/978\/IQP72F1F1HHZ.png\" alt=\"image.png\" \/><br \/>\n<\/a><\/p>\n","protected":false},"template":"","class_list":["post-167701","topic","type-topic","status-closed","hentry","topic-tag-damper","topic-tag-psd","topic-tag-response-spectrum-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_btv_view_count":["1952"],"_bbp_likes_count":["0"],"_bbp_subscription":["233935"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["167701"],"_bbp_forum_id":["27789"],"_bbp_engagement":["50680","215480"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["209544"],"_bbp_last_active_id":["209544"],"_bbp_last_active_time":["2022-04-12 13:27:02"]},"test":"botticelli-1702768studenti-uniroma1-it"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/167701","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\/167701\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=167701"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}