Specifies the starting frequency for the analysis in Hertz (Hz). This is the frequency at which the harmonic forces or displacements are applied.
Harmonic displacements and forces have the form:
A*cosine(wt - f)
where A is the amplitude of the force or displacement, f is the phase angle, and w is the frequency of the loading.
Real and imaginary solutions are developed for each frequency in the defined range, from which any phased solution can be calculated. There must be a starting frequency for a frequency range to be valid.