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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /29/CH11/EX11.4/exa11_4.sce | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '29/CH11/EX11.4/exa11_4.sce')
| -rwxr-xr-x | 29/CH11/EX11.4/exa11_4.sce | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/29/CH11/EX11.4/exa11_4.sce b/29/CH11/EX11.4/exa11_4.sce new file mode 100755 index 000000000..b8eda80c9 --- /dev/null +++ b/29/CH11/EX11.4/exa11_4.sce @@ -0,0 +1,25 @@ +//caption:determine_Wn,zeta_and_Mp
+//example 11_4
+//page 471
+s=%s;
+num=1;
+den=sym('s*(1+0.5*s)*(1+0.2*s)');
+c=num/den;
+c=simple(c);
+disp(c,"C(s)/E(s)=");
+G=c;
+H=1;
+CL=G/(1+G*H);
+CL=simple(CL);
+disp(CL,"C(s)/R(s)=");
+A=pfss((10/(s^3+7*s^2+10*s+10)));
+d=denom(A(1));
+b=coeff(denom(A(1)))
+printf("for oscillatory roots:")
+Wn=sqrt(b(1,1));//natural_frequency
+//2*zeta*Wn=1.5;
+zeta=1.5/(2*Wn);//damping ratio
+Mp=exp((-zeta*%pi)/sqrt(1-zeta^2))*100;//%_peak_overshoot
+disp(Wn,"natural_frequency,Wn=");
+disp(zeta,"damping ratio,zeta=");
+disp(Mp,"%_peak_overshoot,Mp=");
\ No newline at end of file |