Hi
I would recommend using MSUP since that uses the actual modes found in the upstream modal analysis (include enough modes so to make sure mode participation factor is above 90% – see the below course for details) .
Below is our course in harmonic analysis (including msup and full method):
https://www.youtube.com/playlist?list=PLtt6-ZgUFmMJVMZViguORYLBdO0L9ikG4
https://courses.ansys.com/index.php/courses/harmonic-response-analysis-in-ansys-mechanical/
All the best
Erik
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