{"id":382320,"date":"2024-09-11T13:42:40","date_gmt":"2024-09-11T13:42:40","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/psd-random-vibration-and-acceleration-on-a-body-harmonic-response\/"},"modified":"2024-10-02T13:18:35","modified_gmt":"2024-10-02T13:18:35","slug":"psd-random-vibration-and-acceleration-on-a-body-harmonic-response","status":"answered","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/psd-random-vibration-and-acceleration-on-a-body-harmonic-response\/","title":{"rendered":"PSD (random vibration) and Acceleration on a body (harmonic response)"},"content":{"rendered":"

<p>Hello,<\/p><p>I have a structure that holds a motor with a cantilever arm, as you can see in the image.<\/p><p><\/p><p>I have to ensure that the structure can withstand the vibrations generated by the motor when it is running. To do this I have to perform a Random Vibration analysis. How can I insert the PSD into the motor and not into the support?<\/p><p>In addition to the PSD, I also have to check against acceleration peaks between different frequencies. This would be done with a harmonic analysis. How can I insert the acceleration only into the motor instead of all the bodies? Well, it is the motor that generates these excitations.<\/p><\/p>\n","protected":false},"template":"","class_list":["post-382320","topic","type-topic","status-answered","hentry","topic-tag-acceleration-1","topic-tag-aerospace-engineering-1","topic-tag-engine-1","topic-tag-harmonic","topic-tag-harmonic-response","topic-tag-modal","topic-tag-psd","topic-tag-random","topic-tag-random-vibration"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t