diff options
Diffstat (limited to '3886/CH6/EX6.4')
| -rw-r--r-- | 3886/CH6/EX6.4/6_4.sce | 21 | ||||
| -rw-r--r-- | 3886/CH6/EX6.4/6_4.txt | 5 |
2 files changed, 26 insertions, 0 deletions
diff --git a/3886/CH6/EX6.4/6_4.sce b/3886/CH6/EX6.4/6_4.sce new file mode 100644 index 000000000..5d11d01d4 --- /dev/null +++ b/3886/CH6/EX6.4/6_4.sce @@ -0,0 +1,21 @@ +//determine law of machine and maximum efficiency
+//fig.6.4 shows graph of effort vs load
+//from graph
+C=10 //N
+//slope
+m=30/500
+//Law of machine is P=m*W+C
+//P=0.06*W+10
+//eta=MA/VR=W/25P
+//table 6.5 shows calculation of efficiency for various loads
+//Refer fig. 6.5
+//from graph it can be seen that maximum efficiency=50% but the graph is plotted for infinitely large load
+//thus
+//Maximum efficiency
+VR=25
+Emax=100/(m*VR) //percent
+printf("\nLaw of machines is P=0.06*W+10\nMaximum efficiency=%.2f percent",Emax)
+
+
+
+
diff --git a/3886/CH6/EX6.4/6_4.txt b/3886/CH6/EX6.4/6_4.txt new file mode 100644 index 000000000..ebfbdbeb5 --- /dev/null +++ b/3886/CH6/EX6.4/6_4.txt @@ -0,0 +1,5 @@ +
+--> exec('E:\My program EM\6. Lifting machines\6.4.sce', -1)
+
+Law of machines is P=0.06*W+10
+Maximum efficiency=66.67 percent
\ No newline at end of file |