Vehicle Data for Traction Calculation

Condition

Power available for traction $=1400$ kW

Efficiency of electric transmission: $96\%$

Car Weight for performance calculation: MC$=56$ tons, TC$=52$ tons

Wheel$-$Rail adhesion $=0\mathrm{.}22($for traction performance calculation$)$

Running resistance formula $($in kgf$)$:

$R=(1\mathrm{.}65+0\mathrm{.}0247V)Wm+(0\mathrm{.}78+0\mathrm{.}0028V)Wt+(0\mathrm{.}028+0\mathrm{.}0078(n-1))V^2$

Starting resistance $4kg\frac{f}{?}$ ton

$V=$ train speed $($km$/$h$)$

$Wm=$ weight of motor car $($ton$)$

Wt $=$ weight of trailer car $($ton$)$

$n=$ number of car per trainset

$2$

Track Profile

C

Train travels from A to C which sections have different distance and gradient $($provided in separated excel file$)$

Task:

Make traction performance diagram $($Tractive effort vs Speed and Acceleration vs Speed$).$

Calculate the maximum speed can be reached by the train at level track $($zero gradient$)$ and at $15\%$ gradient.

If the train start at $A,$ calculate the speed at point $B$ and $C,$ and the time needed for travelling from $A$ to $C$ assume that the train running at maximum power available. Plot the speed profile diagram $($Speed vs Distance$)$ and Tractive Effort vs Distance.

Calculate the total energy consumed to travel from A to C $.$