bode diagram of the quarter car

hi, how can i make the bode diagram of a quarter car model via matlab? in order to highlight the resonant frequency.

Answer 1

[Sam Chak]

Hi @Federico Paolucci

Say the car model is given by . Then you can use the bode() function.

omega = 1;
zeta  = 0.125/8;
s = tf('s');
G = 1/(s^2 + 2*zeta*omega*s + omega^2)

G =
 
           1
  -------------------
  s^2 + 0.03125 s + 1
 
Continuous-time transfer function.

bode(G)