{"id":241431,"date":"2022-11-20T11:48:43","date_gmt":"2022-11-20T11:48:43","guid":{"rendered":"\/forum\/forums\/topic\/how-to-calculate-frf-on-ansys\/"},"modified":"2022-11-20T11:48:43","modified_gmt":"2022-11-20T11:48:43","slug":"how-to-calculate-frf-on-ansys","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-calculate-frf-on-ansys\/","title":{"rendered":"How to calculate FRF on Ansys"},"content":{"rendered":"

Dear Folks<\/p>\n

In NX Nastran, I can calculate the FRF using either “Sol 108 (Direct Frequency Response Function)” or “Sol 111 (Modal Frequency Response Function)”. Both these analyses are different from “Sol 103 (Response Dynamics)” which can calculate both “sine-sweep harmonic response” and “Random Response”.<\/p>\n

I know that Ansys provides “Harmonic Response” and “Random Vibration” analyses. I understand that both these analyses are equivalent to Nastran’s Sol 103<\/p>\n

My questions are:<\/p>\n

1) Is my understanding correct, that is, are Ansys’ “Harmonic Response” and “Random Vibration” analyses equivalent to Nastran’s Sol 103?<\/p>\n

2) What are Ansys analyses equivalent to Nastran’s Sol 108 and Sol 111?<\/p>\n

 <\/p>\n

Thanks<\/p>\n","protected":false},"template":"","class_list":["post-241431","topic","type-topic","status-closed","hentry","topic-tag-frf-1","topic-tag-harmonic-response","topic-tag-random-vibration"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["172915","240","92209"],"_bbp_author_ip":["23.48.209.37"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["4499"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["241431"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","92209","172915"],"_bbp_voice_count":["3"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["242153"],"_bbp_last_active_id":["242153"],"_bbp_last_active_time":["2022-11-27 13:07:41"]},"test":"georgeaerospace"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/241431","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\/241431\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=241431"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}