General Mechanical

General Mechanical

How to make a Frequency Response Analysis with imposed external frequency-dependent displacements

    • Davide_P
      Subscriber

      Hi everybody!

      I'm trying of performing an FRA with external results imposed as a set of displacements bouday conditions.

      In the picture below, we have a set of frequency dependent displacements (colums) per each degrees of freedom (raws). These results come from an external MatLab analysis (but this is not relevant).

      So, I ask you how can impose these frequency-dependent displacements, into the APDL framework, in order to execute the FRA. My aim is to calculate the frequency dependent stresses observing the coloured map.

      Thanks!

      Davide

    • 1shan
      Ansys Employee
      You might want to have a look at this code - https://forum.ansys.com/discussion/1157/apdl-transient-analysis-only-registering-1st-acceleration-step, its something similar.
      Regards Ishan.
    • Davide_P
      Subscriber

      many thanks for your suggestion! It seems to be in line with my needs or strongly related!
      Regards :)
      Davide
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