please solve the (a) (b) (d) 6.19 Sketch the Nyquist plot based on the Bode plots for each of the following systems, an...

Question

Question

6.19 Sketch the Nyquist plot based on the Bode plots for each of the following systems, and then compare your result with tha

please solve the (a) (b) (d)

engineering Mechanical-Engineering

Answer 1

Answer #1

syms k
k = 1;
numerator = [0.5,1.5,1];
denominator = [10,-9,1];
sys = tf(numerator,denominator)

sys =

0.5 s^2 + 1.5 s + 1
-------------------
10 s^2 - 9 s + 1

bode(sys)
Bode Diagram 彝 -5 10 -15 20 -25 -30 彝 -90 -180 -270 -360 10 10 10 10 10 10 Frequency (rad/s)

nyquist(sys)

Nyquist Diagram 0.8 藥.6 0.4 -0.2 -0.4 -0.6 -0.8 1 -0.8 0.6 -0.4 -0.20.0.0.6 0.8 1 Real Axis

rlocus(sys,k)
Root Locus 0.4 k=1 0.3 0.2 2 0.1 -0.2 -0.3 -0.4 2.5 -2 1.5 -1 0.5 0.5 Real Axis (seconds)

Answer 2

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