{"id":246796,"date":"2023-01-17T19:21:37","date_gmt":"2023-01-17T19:21:37","guid":{"rendered":"\/forum\/forums\/topic\/how-to-find-the-damping-to-be-used-in-ansys-from-experimental-frf\/"},"modified":"2023-01-17T19:21:37","modified_gmt":"2023-01-17T19:21:37","slug":"how-to-find-the-damping-to-be-used-in-ansys-from-experimental-frf","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-find-the-damping-to-be-used-in-ansys-from-experimental-frf\/","title":{"rendered":"How to find the damping to be used in ansys from Experimental FRF"},"content":{"rendered":"<p>Hello all, I wanted to find damping ratio from my experimental data so that i could use it in the simulation. I used half bandwidth method to find the Zeta and then used raleign daping to find mass and stiffness coefficient. However i have two peaks and none of the method above is yielding correct result where both the peaks are on par with the experimental data.<\/p>\n<p>I would like to know how to calculate damping from FRF so that we can get the exact result on the Ansys for both the peaks with less or equal to 10% error. I have a thesis due this s<img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/01\/17-01-2023-1673983291-ansys forum.png\" alt=\"\">emester so any help would be highly appreciated<\/p>\n","protected":false},"template":"","class_list":["post-246796","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["272427","58821","50680"],"_bbp_author_ip":["23.220.96.180"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["1603"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["246796"],"_bbp_forum_id":["27791"],"_bbp_engagement":["50680","58821","272427"],"_bbp_voice_count":["3"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["246945"],"_bbp_last_active_id":["246945"],"_bbp_last_active_time":["2023-01-18 19:41:41"]},"test":"apaudel2lamar-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/246796","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\/246796\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=246796"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}