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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /764/CH12/EX12.4.b/result12_4.txt | |
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initial commit / add all books
Diffstat (limited to '764/CH12/EX12.4.b/result12_4.txt')
| -rwxr-xr-x | 764/CH12/EX12.4.b/result12_4.txt | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/764/CH12/EX12.4.b/result12_4.txt b/764/CH12/EX12.4.b/result12_4.txt new file mode 100755 index 000000000..4e63e6150 --- /dev/null +++ b/764/CH12/EX12.4.b/result12_4.txt @@ -0,0 +1,93 @@ +-->//(Brakes) Example 12.4
+
+-->//Torque capacity of the block brake Mt (N-m)
+
+-->Mt = 250
+ Mt =
+
+ 250.
+
+-->//Speed of the brake n (rpm)
+
+-->n = 100
+ n =
+
+ 100.
+
+-->//Coefficient of friction mu
+
+-->mu = 0.35
+ mu =
+
+ 0.35
+
+-->//Intensity of pressure between the block and the drum p (N/mm2)
+
+-->p = 1
+ p =
+
+ 1.
+
+-->//Ratio of the length of the block to its width r
+
+-->r = 2
+ r =
+
+ 2.
+
+-->//Distance of the actuating force from the block d1 (mm)
+
+-->d1 = 300
+ d1 =
+
+ 300.
+
+-->//Distance of the lever pivot from the block d2 (mm)
+
+-->d2 = 200
+ d2 =
+
+ 200.
+
+-->//Distance between the lever pivot from the contact area d3 (mm)
+
+-->d3 = 50
+ d3 =
+
+ 50.
+
+-->//Radius of the drum R (mm)
+
+-->R = 200
+ R =
+
+ 200.
+
+-->//Final velocity of the brake drum v2 (m/s)
+
+-->v2 = 0
+ v2 =
+
+ 0.
+
+
+The brake is not self-locking
+
+FOR CLOCKWISE ROTATION
+
+Actuating force(Pc) = 1303.571429 N
+
+Reaction at the hinge pin(Rc) = 2589.532008 N
+
+FOR ANTICLOCKWISE ROTATION
+
+Actuating force(Pcc) = 1553.571429 N
+
+Reaction at the hinge pin(Rcc) = 2373.656978 N
+
+Rate of heat generated(E) = 1308.996939 W
+
+Width of the block(w) = 42.257713 or 45.000000 mm
+
+Length of the block(l) = 90.000000 mm
+
\ No newline at end of file |