Natural frequency/discretization/transfer function/Simulink
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Hi everyone!
I'm having a issue about how to get a natural frequency on a Matlab Function Block on Simulink. Here's what I got:
- g2 = ((G1*(G2+2*G_previous1+G_previous2))-(g_previous1*(2*C-2*A))-(g_previous2*(C+A-B)))/(A+B+C);
where g2 is a discretized signal based on a second order transfer function (G/ (s^2 + 2ksi wn + 2 wn^2))
where:
A = 4/(T^2);
B = (4*ksi*wn)/T;
C = (wn)^2;
my point is: I fixed the values of wn and ksi, but how can a give a step or damp to get the natural frequency of the system, since the g2, G2 and the previous ones are getting updated when I run my model?
2 commentaires
VBBV
le 11 Oct 2020
Use damp function to get the natural frequency and damping ratio
%if true
% code
% end
[wn zeta] = damp(sys)
Where sys is the discrete time transfer function of your model obtained using tf
Réponses (0)
Voir également
Catégories
En savoir plus sur Sources dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!