Hello colleagues, good afternoon.

I have the following inquiry: I am trying to perform a dynamic harmonic analysis, and when I want to define a frequency curve for the uniform base excitation, the option for a sinusoidal (harmonic) curve does not appear, only the user-defined one. Does anyone know how I can select a sinusoidal frequency curve? I’ve been researching the matter but couldn’t find reliable information to solve this issue. I only found that it's possible to import a curve in (*.cwcur) format, but nothing beyond that.

Best regards and good afternoon.