System Dynamics and Control: Module 21 - Frequency Response for Analysis

[@AJ-et3vf]

Excellent lectures sir, as usual! Very much helpful!

[@saipranithgirimaji6854]

excellent lectures dear Sir, thank you very much

[@BigBadBrianLinstick]

Hi Rick, when determining if the system has an integrator or a differentiator from the bode plot, you mentioned assessing the plot at low frequencies. Is it safe to assume this is frequencies less than 10^0 rad/sec?

[@hillrickc]

+Ben Lindsay By low I mean as the frequency approaches DC (0 rad/sec). In practice, what is low is relative to how fast the system dynamics are. If you are looking at the frequency response of a bridge, 1 rad/sec is not low. You basically need to look at frequencies below any of the break frequencies in the Bode plot (below any poles or zeros). I hope that helps.