initial commit / add all books

2 files changed, 68 insertions, 0 deletions

diff --git a/764/CH12/EX12.12.b/result12_12.txt b/764/CH12/EX12.12.b/result12_12.txt
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+-->//(Brakes) Example 12.12

+ 

+-->//Troque capacity of the disk brake Mt (N-m)

+ 

+-->Mt = 1500

+ Mt  =

+ 

+    1500.  

+ 

+-->//Outer radius of the pad Ro (mm)

+ 

+-->Ro = 150

+ Ro  =

+ 

+    150.  

+ 

+-->//Inner radius of the pad Ri (mm)

+ 

+-->Ri = 100

+ Ri  =

+ 

+    100.  

+ 

+-->//Coefficient of friction mu

+ 

+-->mu = 0.35

+ mu  =

+ 

+    0.35  

+ 

+-->//Average pressure on the pad pavg (MPa)

+ 

+-->pavg = 2

+ pavg  =

+ 

+    2.  

+ 

+-->//Number of pads n

+ 

+-->n = 2

+ n  =

+ 

+    2.  

+ 

+

+Angular dimension of the pad(theta) = 77.543160 deg

+ 
\ No newline at end of file
diff --git a/764/CH12/EX12.12.b/solution12_12.sce b/764/CH12/EX12.12.b/solution12_12.sce
new file mode 100755
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+
+//Obtain path of solution file
+path = get_absolute_file_path('solution12_12.sce')
+//Obtain path of data file
+datapath = path + filesep() + 'data12_12.sci'
+//Clear all 
+clc
+//Execute the data file
+exec(datapath)
+//Calculate the torque capacity of each pad mt (N-m)
+mt = Mt/n
+//Calculate the friction radius Rf (mm)
+Rf = (2 * (Ro^3 - Ri^3))/(3 * (Ro^2 - Ri^2))
+//Calculate the actuating force P (N)
+P = (mt * 1000)/(mu * Rf)
+//Calculate the area of the pad A (mm2)
+A = P/pavg
+//Calculate the angular dimension of the pad theta (deg)
+theta = ((2 * A)/(Ro^2 - Ri^2))*180/%pi
+//Print results
+printf("\nAngular dimension of the pad(theta) = %f deg\n",theta)