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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/EX12.7.b | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '764/CH12/EX12.7.b')
| -rwxr-xr-x | 764/CH12/EX12.7.b/result12_7.txt | 46 | ||||
| -rwxr-xr-x | 764/CH12/EX12.7.b/solution12_7.sce | 21 |
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) |