{"id":168907,"date":"2022-04-26T16:36:00","date_gmt":"2022-04-26T16:36:00","guid":{"rendered":"\/forum\/forums\/topic\/reg-psd-output-graph-in-random-vibration-analysis\/"},"modified":"2022-04-27T12:27:36","modified_gmt":"2022-04-27T12:27:36","slug":"reg-psd-output-graph-in-random-vibration-analysis","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/reg-psd-output-graph-in-random-vibration-analysis\/","title":{"rendered":"Reg PSD output graph in &#8216;random vibration&#8217; analysis"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p> I have done one &#039;random vibration&#039; analysis &amp; getting first mode at approx 1400Hz..The test frequency is 2000Hz&#8230; Until now, I haven&#039;t been able to cross the min 2000Hz requirement but my acceleration graph goes down after 350 Hz so my colleague told me to check the response obtained from PSD G acceleration.<\/p>\n<p>I am getting response of 400 (G^2\/Hz) at 1400 Hz&#8230;so how to confirm whether this response is acceptable or not?<\/p>\n","protected":false},"template":"","class_list":["post-168907","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"I have done one &#039;random vibration&#039; analysis &amp; getting first mode at approx 1400Hz..The test frequency is 2000Hz... 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