diff options
Diffstat (limited to '3886/CH16/EX16.5')
-rw-r--r-- | 3886/CH16/EX16.5/16_5.sce | 26 | ||||
-rw-r--r-- | 3886/CH16/EX16.5/16_5.txt | 5 |
2 files changed, 31 insertions, 0 deletions
diff --git a/3886/CH16/EX16.5/16_5.sce b/3886/CH16/EX16.5/16_5.sce new file mode 100644 index 000000000..aba7c080d --- /dev/null +++ b/3886/CH16/EX16.5/16_5.sce @@ -0,0 +1,26 @@ +//A tram car
+//refer fig.16.8 (a),(b) and (c)
+//frictional resistance
+W=120 //kN
+F=5*120/1000 //kN
+v=(20*1000)/(60*60) //m/sec
+// (1) on level track
+P1=F //kN
+//output power Pw1
+Pw1=P1*v //kW
+eta1=0.8
+//input power Ip1
+Ip1=Pw1/0.8 //kW
+// (2) Up the plane
+P2=F+W*(1/300) //kN
+//output power required Pw2
+Pw2=P2*v //kW
+//Input power of engine Ip2
+Ip2=Pw2/0.8 //kW
+// (3) Down the incline plane
+Pd=F-W*(1/300)
+Pwd=0.2*5.5556 //kW
+//Input power
+Ipd=1.1111/0.8 //kW
+printf("\On level track Input Power=%.3f kW\nUp the plane Input Power=%.3f kW\nDown the incline plane Input Power=%.3f kW",Ip1,Ip2,Ipd)
+
diff --git a/3886/CH16/EX16.5/16_5.txt b/3886/CH16/EX16.5/16_5.txt new file mode 100644 index 000000000..2eba45c68 --- /dev/null +++ b/3886/CH16/EX16.5/16_5.txt @@ -0,0 +1,5 @@ +
+--> exec('E:\My program EM\16. Work energy method\16.5.sce', -1)
+On level track Input Power=4.167 kW
+Up the plane Input Power=6.944 kW
+Down the incline plane Input Power=1.389 kW
\ No newline at end of file |