AnsweredAssumed Answered

modal analysis (Frequency) of pump station

Question asked by Sadegh Fffff on May 24, 2018
Latest reply on May 24, 2018 by Ryan Dark

I've ordered to modal analyse a pump station which exists in real.


I modeled all pipes, flunges, suppurts,... in past couple of months. now i reached the simulation step and as this is my first Big Project I appreciate any kind of tips or notices. until now I did couple of things which i'm going to share for better understanding:


  • I applied materials the way I told so.
  • I assembled all parts in coincide type, so I didn't change contacts (default bonded global).
  • I've specified fix geometry in bottom of all bases:


  • then I meshed the model (which is my biggest conflict). I've set mesh control for all parts (organized same shapes in one control). and so far I got this:


  • but when I run the simulation I've got this strange result (mode shape 1):


I know there are very things which I should consider for this kind of big projects but at first I thought maybe the best place to start collecting data would be this forum.


thanks in advanced.