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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/CH14/EX14.7.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/CH14/EX14.7.b')
| -rwxr-xr-x | 764/CH14/EX14.7.b/result14_7.txt | 78 | ||||
| -rwxr-xr-x | 764/CH14/EX14.7.b/solution14_7.sce | 21 |
2 files changed, 99 insertions, 0 deletions
diff --git a/764/CH14/EX14.7.b/result14_7.txt b/764/CH14/EX14.7.b/result14_7.txt new file mode 100755 index 000000000..3afc9fb93 --- /dev/null +++ b/764/CH14/EX14.7.b/result14_7.txt @@ -0,0 +1,78 @@ +-->//(Chain Drives) Example 14.7
+
+-->//Speed of the electric motor n1 (rpm)
+
+-->n1 = 1400
+ n1 =
+
+ 1400.
+
+-->//Speed of the line shaft n2 (rpm)
+
+-->n2 = 350
+ n2 =
+
+ 350.
+
+-->//Number of teeth on the driving sprocket z1
+
+-->z1 = 19
+ z1 =
+
+ 19.
+
+-->//kW rating of 10B chain for n1 rpm from table 14.2 on page 550 kW
+
+-->kW = 11.67
+ kW =
+
+ 11.67
+
+-->//Pitch of the chain p (mm)
+
+-->p = 15.875
+ p =
+
+ 15.875
+
+-->//Breaking load for the chain Pb (N)
+
+-->Pb = 22200
+ Pb =
+
+ 22200.
+
+-->//Change the following data accordingly
+
+-->//Find service factor for moderate shock conditions from table 14.3 on page 551
+
+-->Ks = 1
+ Ks =
+
+ 1.
+
+-->//Find multiple strand factor from table 14.4 on page 551
+
+-->//For 1 strand
+
+-->K1 = 1
+ K1 =
+
+ 1.
+
+-->//Find the tooth correction factor from table 14.5 on page 551
+
+-->//For 19 teeth
+
+-->K2 = 1.11
+ K2 =
+
+ 1.11
+
+
+Rated power for which the chain drive can be recommended(kWd) = 12.953700 kW
+
+Tension in the chain(P1) = 1840.558878 N
+
+Factor of safety for the chain based on the breaking load(fs) = 12.061554
+
\ No newline at end of file diff --git a/764/CH14/EX14.7.b/solution14_7.sce b/764/CH14/EX14.7.b/solution14_7.sce new file mode 100755 index 000000000..1537d910d --- /dev/null +++ b/764/CH14/EX14.7.b/solution14_7.sce @@ -0,0 +1,21 @@ +
+//Obtain path of solution file
+path = get_absolute_file_path('solution14_7.sce')
+//Obtain path of data file
+datapath = path + filesep() + 'data14_7.sci'
+//Clear all
+clc
+//Execute the data file
+exec(datapath)
+//Calculate the power to be transmitted kWd
+kWd = kW * K1 * K2/Ks
+//Calculate the velocity of the driving sprocket v (m/s)
+v = z1 * p * n1/(60000)
+//Calculate the tension in the chain P1
+P1 = 1000 *kWd/v
+//Calculate the factor of safety fs
+fs = Pb/P1
+//Print results
+printf("\nRated power for which the chain drive can be recommended(kWd) = %f kW\n",kWd)
+printf("\nTension in the chain(P1) = %f N\n",P1)
+printf("\nFactor of safety for the chain based on the breaking load(fs) = %f\n",fs)
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