{"id":387182,"date":"2024-09-26T15:53:07","date_gmt":"2024-09-26T15:53:07","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/psd-acceleration-g2hz-on-a-body-for-random-vibration\/"},"modified":"2024-09-26T15:53:07","modified_gmt":"2024-09-26T15:53:07","slug":"psd-acceleration-g2hz-on-a-body-for-random-vibration","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/psd-acceleration-g2hz-on-a-body-for-random-vibration\/","title":{"rendered":"PSD (acceleration, g^2\/Hz) on a body for Random Vibration"},"content":{"rendered":"<p>&lt;p&gt;Hi,&lt;\/p&gt;&lt;p&gt;I have a motor mounted on a support that is anchored to a bench. I need to perform a Random Vibration type analysis to check the integrity of the support (large size).&lt;\/p&gt;&lt;p&gt;However, I need to insert the PSD (g^2\/Hz) into the motor, that is, into a body and not into the support anchor to the bench.&lt;\/p&gt;&lt;p&gt;This post (<a href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/psd-random-vibration-and-acceleration-on-a-body-harmonic-response\/\">link<\/a>) indicates that it is possible to insert the PSD into a body. Even though the APDL commands are attached to the post, these commands do not work. However, in this other post (<a href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/questions-regarding-boundary-condition-setting-and-random-vibration-analysis-pressure-excitation\/\">link2<\/a>) I have found a code that does work.&lt;\/p&gt;&lt;p&gt;However, my PSD is in g^2\/Hz. Therefore, I want to insert it as acceleration into the motor, not as pressure. How could I do this?&lt;\/p&gt;&lt;p&gt;Regards&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-387182","topic","type-topic","status-publish","hentry","topic-tag-Modal_Analysis-1","topic-tag-aerospace-engineering-1","topic-tag-engine-1","topic-tag-modal","topic-tag-prestressed","topic-tag-psd","topic-tag-random-vibration","topic-tag-static-structural"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["245530","436953"],"_bbp_author_ip":["62.82.24.195"],"_btv_view_count":["710"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["387182"],"_bbp_forum_id":["27791"],"_bbp_engagement":["245530","436953"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["387275"],"_bbp_last_active_id":["387275"],"_bbp_last_active_time":["2024-09-27 10:48:09"]},"test":"mihai-riceanhotmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/387182","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\/387182\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=387182"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}