Question

- Draw the second order open-loop unit step response for ζ = 0.2 and ωn = 5. 5.

- Draw the second order closed-loop unit step response for ζ = 0.2 and ωn = 5

Answer 1

clc;clear all
%First part
w=5.5;zeta=0.2; %Given values
num=w^2; %Numerator
den=[1 2*zeta*w w^2]; %Denominator
T=tf(num,den) %Creates transfer function
step(T) %Generates step response

clc;clear all
%Second part
w=5;zeta=0.2; %Given values
num=w^2; %Numerator
den=[1 2*zeta*w w^2]; %Denominator
T=tf(num,den) %Creates transfer function
step(T) %Generates step response