diff options
| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /278/CH17/EX17.9/ex_17_9.sce | |
| 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/CH17/EX17.9/ex_17_9.sce')
| -rwxr-xr-x | 278/CH17/EX17.9/ex_17_9.sce | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/278/CH17/EX17.9/ex_17_9.sce b/278/CH17/EX17.9/ex_17_9.sce new file mode 100755 index 000000000..f79d8294d --- /dev/null +++ b/278/CH17/EX17.9/ex_17_9.sce @@ -0,0 +1,41 @@ +//find...
+clc
+//soltuion
+//given
+W1=18000//N
+F=4000//N
+do=60//mm
+p=10//mm
+D1=150//mm
+R1=75//mm
+D2=50//mm
+R2=25//mm
+u=0.1//=tan(q)
+u1=0.12
+pb=7//N/mm^2
+//let P1 be max force
+dc=do-p//mm
+d=(do+dc)/2//mm
+//tan(a)=p/(%pi*d)=0.058
+b=0.058
+W=W1+F//N
+T1=W*[(b+u)/(1-(b*u))]*d/2//N-mm//torque aacting
+R=(R1+R2)/2//mm
+T2=u1*W*R//N-mm
+T=T1+T2//N-mm
+//T=2*P1*1000
+P1=T/(2*1000)//N
+printf("the force acting at end of lever is,%f N\n",P1)
+W2=W1-F//N
+T3=W2*[(u-b)/(1+(b*u))]*d/2//N-mm
+T4=u1*W2*R//N-mm
+T5=T4+T3//N-mm
+P2=T5/(2000)//N
+printf("the force acting in lowering the agte is,%f N\n",P2)
+To=W*b*d/2//N-mm
+eff=To/T
+printf("the eff is,%f \n",eff)
+//let n be numbr of theads
+t=p/2//mm//thikness
+n=(W)/(7*%pi*d*t)
+printf("the numbr of threads are ,%f",n)
\ No newline at end of file |