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diff --git a/3731/CH10/EX10.6/Ex10_6.sce b/3731/CH10/EX10.6/Ex10_6.sce new file mode 100644 index 000000000..01d73e110 --- /dev/null +++ b/3731/CH10/EX10.6/Ex10_6.sce @@ -0,0 +1,33 @@ +//Chapter 10:Traction Drives
+//Example 6
+clc;
+
+//Variable Initialization
+G=10 //up gradient of the locomotive
+Ml=110 //weight of the locomotive coach in tonne
+Mt=500 //weight of the train in tonne
+r=35 //train resistance N/tonne
+n=0.8 //80% of the locomotive weight is carried by the driving wheels
+alpha=1 //acelaration in kmphps
+
+//Solution
+//when only the 110 tonne locomotive is present
+Md=Ml*n //weight of the motor
+M=Mt+Ml //total mass of the train
+Me=1.1*M
+Ft=277.8*Me*alpha+9.81*M*G+M*r //total tractive effort required to move the train
+Fm=Ft
+u=Fm/(9810*Md) //co-efficient of adhesion ,since Fm=9810*u*Md
+
+//when another locomotive of 70 is added together
+Md=Ml*n+70 // mass of the motor
+M_=Mt+Ml+70 // mass of the train
+Fm=9810*u*Md
+Ft=Fm
+M=Ft/(277.8*1.1*alpha+9.81*G+r) //total mass of the train, since Ft=277.8*Me*alpha+9.81*M*G+M*r
+W=M-M_ //weight of additional bogies to be attached
+
+
+//Results
+mprintf("\n Given co-efficient of adhesion is: %.2f",u)
+mprintf("\n Weight of additional bogies to be attached is:%.1f T",W)
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