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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 /213/CH10/EX10.19 | |
| 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 '213/CH10/EX10.19')
| -rwxr-xr-x | 213/CH10/EX10.19/10_19.sce | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/213/CH10/EX10.19/10_19.sce b/213/CH10/EX10.19/10_19.sce new file mode 100755 index 000000000..77f5b7207 --- /dev/null +++ b/213/CH10/EX10.19/10_19.sce @@ -0,0 +1,24 @@ +//To find power absorbed in friction
+clc
+//Given:
+n=6
+d1=600,r1=d1/2,d2=300,r2=d2/2 //mm
+W=100*1000 //N
+mu=0.12
+N=90 //rpm
+//Solution:
+//Calculating the angular speed of the engine
+omega=2*%pi*N/60 //rad/s
+//Power absorbed in friction assuming uniform pressure:
+//Calculating the total frictional torque transmitted
+T=2/3*mu*W*(r1^3-r2^3)/(r1^2-r2^2)/1000 //N-m
+//Calculating the power absorbed in friction
+P1=T*omega/1000 //Power absorbed in friction assuming uniform pressure, kW
+//Power absorbed in friction assuming uniform wear:
+//Calculating the total frictional torque transmitted
+T=1/2*mu*W*(r1+r2)/1000 //N-m
+//Calculating the power absorbed in friction
+P2=T*omega/1000 //Power absorbed in friction assuming uniform wear, kW
+//Results:
+printf("\n\n Power absorbed in friction assuming uniform pressure, P = %.1f kW.\n",P1)
+printf(" Power absorbed in friction assuming uniform wear, P = %.2f kW.\n\n",P2)
\ No newline at end of file |