2 files changed, 67 insertions, 0 deletions
diff --git a/764/CH12/EX12.7.b/result12_7.txt b/764/CH12/EX12.7.b/result12_7.txt
new file mode 100755
index 000000000..35a61dff0
--- /dev/null
+++ b/764/CH12/EX12.7.b/result12_7.txt
@@ -0,0 +1,46 @@
+-->//(Brakes) Example 12.7
+ 
+-->//Angle subtended by the block at the drum theta (deg)
+ 
+-->theta = 100
+ theta  =
+ 
+    100.  
+ 
+-->//Diameter of the brake drum D (mm)
+ 
+-->D = 500
+ D  =
+ 
+    500.  
+ 
+-->//Width of the friction lining w (mm)
+ 
+-->w = 100
+ w  =
+ 
+    100.  
+ 
+-->//Coefficient of friction mu
+ 
+-->mu = 0.2
+ mu  =
+ 
+    0.2  
+ 
+-->//Maximum intensity of pressure pmax (N/mm2)
+ 
+-->pmax = 0.5
+ pmax  =
+ 
+    0.5  
+ 
+
+Distance of pivot from axis of the drum(h) = 280.588279 mm
+
+Torque capacity of each shoe(Mt) = 957555.553899 N-mm
+
+Reaction in x-direction(Rx) = 17063.356281 N
+
+Reaction in y-direction(Ry) = 3412.671256 N
+ 
+\ No newline at end of file
diff --git a/764/CH12/EX12.7.b/solution12_7.sce b/764/CH12/EX12.7.b/solution12_7.sce
new file mode 100755
index 000000000..8c340cd2a
--- /dev/null
+++ b/764/CH12/EX12.7.b/solution12_7.sce
@@ -0,0 +1,21 @@
+
+//Obtain path of solution file
+path = get_absolute_file_path('solution12_7.sce')
+//Obtain path of data file
+datapath = path + filesep() + 'data12_7.sci'
+//Clear all
+clc
+//Execute the data file
+exec(datapath)
+//Calculate the distance of the pivot from the axis of the drum h (mm)
+h = (4 * (D/2) * sind(theta/2))/((theta * %pi/180) + sind(theta))
+//Calculate the torque capacity of each shoe Mt (N-mm)
+Mt = 2 * mu * (D/2)^2 * w * pmax * sind(theta/2)
+//Calculate the reactions at the pivot Rx and Ry (N)
+Rx = 0.5 * (D/2) * w * pmax * ((theta * %pi/180) + sind(theta))
+Ry = 0.5 * mu * (D/2) * w * pmax * ((theta * %pi/180) + sind(theta))
+//Print results
+printf("\nDistance of pivot from axis of the drum(h) = %f mm\n",h)
+printf("\nTorque capacity of each shoe(Mt) = %f N-mm\n",Mt)
+printf("\nReaction in x-direction(Rx) = %f N\n",Rx)
+printf("\nReaction in y-direction(Ry) = %f N\n",Ry)