Question: The Bode plots for a plant, G(s), used in a unity feedback system are shown in Figure P10.7. Do the following: a. Find the gainmargin,

The Bode plots for a plant, G(s), used in a unity feedback system are shown in Figure P10.7. Do the following:

a. Find the gainmargin, phasemargin, zero dBfrequency, 180° frequency, and the closed-loop bandwidth.

b. Use your results in Part a to estimate the damping ratio, percent overshoot, settling time, and peak time.

20 -20 -40 -60 -80 -100 10- 100 10! 102 Frequency (rad/s)

20 -20 -40 -60 -80 -100 10- 100 10! 102 Frequency (rad/s) -90 -135 -180 -225 -270 10 100 10' 102 Frequency (rad/s) FIGURE P10.7 Phase (degrees) 20 log M

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