1 files changed, 24 insertions, 0 deletions
diff --git a/278/CH13/EX13.3/ex_13_3.sce b/278/CH13/EX13.3/ex_13_3.sce
new file mode 100755
index 000000000..5b26dcea4
--- /dev/null
+++ b/278/CH13/EX13.3/ex_13_3.sce
@@ -0,0 +1,24 @@
+//desing keyway in motr shaft
+clc
+//soltuion
+//given
+P=15*10^3//W
+N=960//rpm
+d=40//mm
+l=75//mm
+t=56//N/mm^2
+fc=112//N/mm^2
+Tq=(P*60)/(2*%pi*N)//N-mm
+//let w be width of key
+//Tq=l*w*t*d/2=84000*w
+//w=Tq/84000//mm
+printf("the width of keywy is,%f mm\n",Tq/84000)
+printf("this width is too small,it should be atleats w=d/4,so taking w=d/4 as min widht we get w=d/4=10//mm\n")
+w=10//mm
+T=10//mm//thickness =width=square key
+h=T/2
+e=1-(0.2*(w/d))-1.1*(h/d)
+P1=(pi/16)*t*d^3*e//N//strength of shaft
+Ps=l*w*t*d/2//N//shear strength of shaft
+x=Ps/P1//
+printf("the check value is,%f",x)
+\ No newline at end of file