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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 /278/CH22/EX22.9 | |
| 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 '278/CH22/EX22.9')
| -rwxr-xr-x | 278/CH22/EX22.9/ex_22_9.sce | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/278/CH22/EX22.9/ex_22_9.sce b/278/CH22/EX22.9/ex_22_9.sce new file mode 100755 index 000000000..77a02f682 --- /dev/null +++ b/278/CH22/EX22.9/ex_22_9.sce @@ -0,0 +1,32 @@ +//find...
+clc
+//solution
+//given
+n=25
+d1=25//mm
+t1=18//mm
+tu=300//N/mm^2
+effm=0.95
+Cs=0.1
+ft=6//N/mm^2
+rho=7250//kg/m^3
+D=1.4//m
+R=0.7//m
+As=%pi*d1*t1//area of plate sheared
+Fs=As*tu//N
+Eps=0.5*Fs*t1//N-mm//energy req per stroke
+Epm=Eps*n/1000//N-m
+P=Epm/(60*effm)//W
+printf("power req is,%f W\n",P)
+//let t be thickness and b be width of rim
+//b=2t
+//A=b*t=2*t^2
+dE=(9/10)*Eps//N-m
+//let m be mass of wheel
+Erim=0.95*dE//N-m
+N=9*25//rpm
+w=2*%pi*N/60//rad/s
+m=Erim/(R^2*w^2*Cs)//kg
+//m=A*2*%pi*R*rho=63782*t^2
+t=sqrt(m/63782)//m
+printf("the thickness and width is,%f m\n,%f m\n",t,2*t)
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