1 files changed, 18 insertions, 0 deletions
diff --git a/257/CH7/EX7.13/example_7_13.sce b/257/CH7/EX7.13/example_7_13.sce
new file mode 100644
index 000000000..b0d6586e5
--- /dev/null
+++ b/257/CH7/EX7.13/example_7_13.sce
@@ -0,0 +1,18 @@
+syms f J K s t
+
+T=1/(J*(s^2+(f/J)*s+(K/J)))             //Q/I
+
+omegaN=sqrt(K/J)
+Mp=6     //given
+zeta=0.667
+
+omegaD=omegaN*sqrt(1-zeta^2)
+Tp=%pi/omegaD
+disp(Tp," Tp = ")
+
+I=laplace('10',t,s)
+Q=I*T
+x=limit(s*Q,s,0);
+disp(10/0.5," K = ")
+disp(K/omegaN^2," J= ")
+disp(zeta*(2*sqrt(K*J))," f = ")