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+-->//(Brakes) Example 12.9
+ 
+-->//Face width of the friction lining w (mm)
+ 
+-->w = 50
+ w  =
+ 
+    50.  
+ 
+-->//Maximum intensity of normal pressure pmax (N/mm2)
+ 
+-->pmax = 1
+ pmax  =
+ 
+    1.  
+ 
+-->//Coefficient of friction mu
+ 
+-->mu = 0.3
+ mu  =
+ 
+    0.3  
+ 
+-->//Radius of the drum R (mm)
+ 
+-->R = 250
+ R  =
+ 
+    250.  
+ 
+-->//All angles are taken from the same reference
+ 
+-->//Angles of the shoe theta1 and theta2
+ 
+-->theta1 = 15
+ theta1  =
+ 
+    15.  
+ 
+-->theta2 = 75
+ theta2  =
+ 
+    75.  
+ 
+-->//Maximum normal pressure occurs at angle fi (deg)
+ 
+-->if (theta2 > 90)
+-->    fi = 90
+-->else
+-->    fi = theta2
+ fi  =
+ 
+    75.  
+-->end
+ 
+-->//Distance of the force from the horizontal centerline d1 (mm)
+ 
+-->d1 = 200
+ d1  =
+ 
+    200.  
+ 
+-->//The distance of the pivot from the axis of the brake drum h (mm)
+ 
+-->h= 200
+ h  =
+ 
+    200.  
+ 
+-->//Distance of the pivot from the vertical centerline d2 (mm)
+ 
+-->d2 = 50
+ d2  =
+ 
+    50.  
+ 
+
+Actuating force(P) = 5025.457606 N
+
+Torque absorbing capacity of the brake with 4 shoes(Mt) = 2181614.276244 N-mm
+ 
+\ No newline at end of file