I want to get the formula for frequency at resonance peak ( ωn=ω*sqrt(1 - 2*ζ2) ) in Maple 15, starting from the transfer function
G(s) := 1/(1+2*zeta*s/omega[n]+(1/(omega[n])^2)*s^2);
I wrote these lines but I haven't obtained the results I wanted:
Abs := simplify(normal(rhs(%)));
I need help. The resonance peak should exist for zeta < 1/sqrt(2) if I'm not wrong..