XML
Loading
Laplace.T Root-locus Transient response Frecuency response
       
 
 
 

8 Program 6.9 OGATA 4edition (root locus, damping ratio)




Let us calculate the root-locus with indication of damping ratio $\zeta$=0.5 by Scilab of a system with closed loop with feedback unit whose transfer function in open loop is:

\begin{displaymath}G(s)=\frac{K\cdot (1-0.5\cdot s)}{(s\cdot (s+1))}\end{displaymath}


Program in Scilab
num=poly([1 -0.5 0],'s','coeff');
den=poly([0 1 1],'s','coeff');
g=syslin('c',num/den);
clf;
evans(g);
v=[-2 6 -4 4];
mtlb_axis(v)
xgrid;
sgrid([0.5],[0],1);

 


Image Programa6_9

cajael