diff options
Diffstat (limited to '1835/CH2/EX2.7/Ex2_7.sce')
| -rwxr-xr-x | 1835/CH2/EX2.7/Ex2_7.sce | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/1835/CH2/EX2.7/Ex2_7.sce b/1835/CH2/EX2.7/Ex2_7.sce new file mode 100755 index 000000000..904659567 --- /dev/null +++ b/1835/CH2/EX2.7/Ex2_7.sce @@ -0,0 +1,25 @@ +//CHAPTER 2 ILLUSRTATION 7 PAGE NO 62
+//TITLE:TRANSMISSION OF MOTION AND POWER BY BELTS AND PULLEYS
+clc
+clear
+//===========================================================================================
+//INPUT DATA
+m=1000// MASS OF THE CASTING IN kg
+PI=3.141
+THETA=2.75*2*PI// ANGLE OF CONTACT IN radians
+D=.26// DIAMETER OF DRUM IN m
+N=24// SPEED OF THE DRUM IN rpm
+U=.25// COEFFICIENT OF FRICTION
+e=2.71
+T1=9810// TENSION ON TIGHTSIDE IN N
+//=============================================================================================
+//CALCULATION
+T2=T1/(e^(U*THETA))// tension on slack side of belt in N
+W=m*9.81// WEIGHT OF CASTING IN N
+R=D/2// RADIUS OF DRUM IN m
+P=2*PI*N*W*R/60000// POWER REQUIRED IN kW
+P2=(T1-T2)*PI*D*N/60000// POWER SUPPLIED BY DRUM IN kW
+//============================================================================================
+//OUTPUT
+printf('FORCE REQUIRED BY MAN=%f N\n POWER REQUIRED TO RAISE CASTING=%f kW\n POWER SUPPLIED BY DRUM=%f kW\n',T2,P,P2)
+
|