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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3731/CH10/EX10.5 | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
Diffstat (limited to '3731/CH10/EX10.5')
| -rw-r--r-- | 3731/CH10/EX10.5/Ex10_5.sce | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/3731/CH10/EX10.5/Ex10_5.sce b/3731/CH10/EX10.5/Ex10_5.sce new file mode 100644 index 000000000..f910c99a2 --- /dev/null +++ b/3731/CH10/EX10.5/Ex10_5.sce @@ -0,0 +1,31 @@ +//Chapter 10:Traction Drives
+//Example 5
+clc;
+
+//Variable Initialization
+Mm=40 //weight of the motor coach in tonne
+Mt=35 //weight of the trailer in tonne
+u=0.2 //co-efficient of adhesion
+r=30 //train resistance N/tonne
+
+//Solution
+//(a)when the motor to trailer ratio is 1:2
+M=Mm+2*Mt //weight of one unit
+Me=1.1*M
+Md=40 //weight on the driving wheels
+Fm=9810*u*Md //total tractive effort without the wheel
+Ft=Fm //at maximum accelaration
+alpha=(Ft-M*r)/(277.8*Me) //required accelaration since Ft=277.8*u*alpha*M*r
+
+//(b)when the motor to trailer ratio is 1:1
+M=Mm+Mt //weight of one unit
+Me=1.1*M
+Md=40 //weight on the driving wheels
+Fm=9810*u*Md //total tractive effort wihout the wheel
+Ft=Fm //at maximum accelaration
+alpha1=(Ft-M*r)/(277.8*Me) //required accelaration since Ft=277.8*u*alpha*M*r
+
+
+//Results
+mprintf("(a)Maximum accelaration on a level track is alpha : %.4f kmphps",alpha)
+mprintf("\n(b)Maximum accelaration when motor to trailer coaches ratio is 1:1 is alpha : %.3f kmphps",alpha1)
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