{"id":319139,"date":"2023-11-23T07:20:22","date_gmt":"2023-11-23T07:20:22","guid":{"rendered":"\/forum\/forums\/topic\/how-to-perform-a-sine-on-random-vibration-analysis-in-ansys-mechanical\/"},"modified":"2023-11-23T07:20:22","modified_gmt":"2023-11-23T07:20:22","slug":"how-to-perform-a-sine-on-random-vibration-analysis-in-ansys-mechanical","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-perform-a-sine-on-random-vibration-analysis-in-ansys-mechanical\/","title":{"rendered":"How to perform a sine-on-random vibration analysis in Ansys Mechanical ?"},"content":{"rendered":"

I need to perform sine on random analysis, as ansys has no direct provison to perform these. From my own search, i found thatthere is indirect ways, first is to add sine tones to Random Vibration PSD curve and use this equivalent PSD in analysis, and second one is to  Perform a separate harmonic response and random vibration analysis and convert the harmonic response results to “RMS”” values. Then statistically add the RMS results from the harmonic analysis to random vibration results.<\/p>\n

Can anyone guide for performin any one out of these above methods, my vibration profiles are given below.<\/p>\n\n\n\n\n\n\n\n\n
\n

Sine Tones<\/span><\/p>\n<\/td>\n

\n

Broadband Spectrum<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Freq(Hz)<\/span><\/p>\n<\/td>\n

\n

Amp(g)<\/span><\/p>\n<\/td>\n

\n

Freq(Hz)<\/span><\/p>\n<\/td>\n

\n

Amp(g2<\/sup>\/hz)<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

f1<\/span><\/p>\n<\/td>\n

\n

3.5<\/span><\/p>\n<\/td>\n

\n

A1<\/span><\/p>\n<\/td>\n

\n

0.0972<\/span><\/p>\n<\/td>\n

\n

10<\/span><\/p>\n<\/td>\n

\n

0.002<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

f2<\/span><\/p>\n<\/td>\n

\n

17.5<\/span><\/p>\n<\/td>\n

\n

A2<\/span><\/p>\n<\/td>\n

\n

2.625<\/span><\/p>\n<\/td>\n

\n

100<\/span><\/p>\n<\/td>\n

\n

0.02<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

f3<\/span><\/p>\n<\/td>\n

\n

35<\/span><\/p>\n<\/td>\n

\n

A3<\/span><\/p>\n<\/td>\n

\n

3.75<\/span><\/p>\n<\/td>\n

\n

300<\/span><\/p>\n<\/td>\n

\n

0.02<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

f4<\/span><\/p>\n<\/td>\n

\n

52.5<\/span><\/p>\n<\/td>\n

\n

A4<\/span><\/p>\n<\/td>\n

\n

2.25<\/span><\/p>\n<\/td>\n

\n

500<\/span><\/p>\n<\/td>\n

\n

0.002<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"template":"","class_list":["post-319139","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["284329","88"],"_bbp_author_ip":["23.206.193.59"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["1988"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["319139"],"_bbp_forum_id":["27791"],"_bbp_engagement":["88","284329"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["319303"],"_bbp_last_active_id":["319303"],"_bbp_last_active_time":["2023-11-24 06:40:09"]},"test":"balaji-bpcoreel-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/319139","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\/319139\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=319139"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}