Ansys Learning Forum Forums Discuss Simulation General Mechanical Harmonic Analysis with tabular displacement input Reply To: Harmonic Analysis with tabular displacement input

peteroznewman
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A Harmonic Response analysis takes the amplitude of a sinusoidal load and computes the response of the structure from a start frequency to an end frequency.

Displacements are less common than forces or accelerations for applied loads.  Are you trying to do a MSUP or a Full Harmonic Response analysis?  If you are doing MSUP, are you trying to do Base Excitation?  

You can run two analyses to get the results for your table, one with an amplitude of 10 mm and sweep from 5 Hz to 20 Hz, while the second analysis would have an amplitude of 20 mm and would sweep from 20 Hz to 30 Hz.  You don’t have to run an analysis for the first two rows in your table. The answer is zero.