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I need to find an acceleration transfer function that relates the acceleration of the sprung mass and the road surface. Is the code I am using correct?

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Austin Kim
Austin Kim on 7 Dec 2019
Answered: Shashwat Bajpai on 11 Dec 2019
clc
close all
clear
ms = 300;
mu = 50;
ks = 16000;
bs = 1000;
kt = 160000;
A = [ 0 1 0 0; ks/ms -bs/ms ks/ms bs/ms; 0 0 0 1; (kt+ks)/mu bs/mu -ks/mu -bs/mu];
B = [ 0 0; 1/ms 0; 0 0; -1/mu kt/mu];
C = [0 1 0 0];
D = [0 0];
sys = ss(A,B,C,D);
step(sys);
hold on
figure
bode(sys);

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Answers (1)

Shashwat Bajpai
Shashwat Bajpai on 11 Dec 2019
I would suggest using the tf function to create the transfer function further you can use ss2tf function to change your existing state space model to transfer function form. The following links might help:
Hope this helps!

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