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Tractive Effort at Wheel Formula

GoTractive Effort on Driven Wheel Formula

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Wheel tractive effort refers to the force that a locomotive or a vehicle's drive wheels apply to the track or the road to propel the vehicle forward. Check FAQs

F w = \frac{F pin \cdot d 2}{d}

F_w - Wheel Tractive Effort?F_pin - Pinion Edge Tractive Effort?d₂ - Diameter of Pinion 2?d - Diameter of Wheel?

Tractive Effort at Wheel Example

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Here is how the Tractive Effort at Wheel equation looks like with Values.

Here is how the Tractive Effort at Wheel equation looks like with Units.

Here is how the Tractive Effort at Wheel equation looks like.

33.0323 = \frac{64 \cdot 0.8}{1.55}

33.0323N = \frac{64N \cdot 0.8m}{1.55m}

33.0323 = \frac{64 \cdot 0.8}{1.55}

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Tractive Effort at Wheel Solution

Follow our step by step solution on how to calculate Tractive Effort at Wheel?

FIRST Step Consider the formula

F w = \frac{F pin \cdot d 2}{d}

Next Step Substitute values of Variables

∴

F w = \frac{64N \cdot 0.8m}{1.55m}

Next Step Prepare to Evaluate

∴

F w = \frac{64 \cdot 0.8}{1.55}

Next Step Evaluate

∴

F w = 33.0322580645161N

LAST Step Rounding Answer

∴

F w = 33.0323N

Tractive Effort at Wheel Formula Elements

Variables

Wheel Tractive Effort

Wheel tractive effort refers to the force that a locomotive or a vehicle's drive wheels apply to the track or the road to propel the vehicle forward.

Symbol: F_w

Measurement: ForceUnit: N

Note: Value should be greater than 0.

Formulas to find Wheel Tractive Effort

Pinion Edge Tractive Effort

Pinion Edge Tractive Effort is the effective force acting on the wheel of the locomotive, necessary to propel the train.

Symbol: F_pin

Measurement: ForceUnit: N

Note: Value can be positive or negative.

Formulas to find Pinion Edge Tractive Effort

Diameter of Pinion 2

Diameter of Pinion 2 is known as when two gears run together, the one with the smaller number of teeth is called the pinion and its diameter is pinion diameter.

Symbol: d₂

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Diameter of Pinion 2

Diameter of Wheel

Diameter of wheel is the length of the wheel (diameter) of the train.

Symbol: d

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Diameter of Wheel

Other Formulas to find Wheel Tractive Effort

Go Tractive Effort on Driven Wheel

F w = \frac{i \cdot i o \cdot (\frac{η dl}{100}) \cdot T pp}{r d}

Other formulas in Tractive Effort category

Go Total Tractive Effort Required for Propulsion of Train

F train = F or + F og + F

Go Tractive Effort at Edge of Pinion

F pin = \frac{2 \cdot τ e}{d 1}

Go Tractive Effort during Acceleration

F α = (277.8 \cdot W e \cdot α) + (W \cdot R sp)

Go Tractive Effort Required during Free-Running

F free = (98.1 \cdot W \cdot G) + (W \cdot R sp)

How to Evaluate Tractive Effort at Wheel?

Tractive Effort at Wheel evaluator uses Wheel Tractive Effort = (Pinion Edge Tractive Effort*Diameter of Pinion 2)/Diameter of Wheel to evaluate the Wheel Tractive Effort, The Tractive Effort at wheel formula is defined as the ratio of the product of tractive effort at the edge of pinion & diameter of opinion to the diameter of the wheel. Wheel Tractive Effort is denoted by F_w symbol.

How to evaluate Tractive Effort at Wheel using this online evaluator? To use this online evaluator for Tractive Effort at Wheel, enter Pinion Edge Tractive Effort (F_pin), Diameter of Pinion 2 (d₂) & Diameter of Wheel (d) and hit the calculate button.

FAQs on Tractive Effort at Wheel

What is the formula to find Tractive Effort at Wheel?

The formula of Tractive Effort at Wheel is expressed as Wheel Tractive Effort = (Pinion Edge Tractive Effort*Diameter of Pinion 2)/Diameter of Wheel. Here is an example- 33.03226 = (64*0.8)/1.55.

How to calculate Tractive Effort at Wheel?

With Pinion Edge Tractive Effort (F_pin), Diameter of Pinion 2 (d₂) & Diameter of Wheel (d) we can find Tractive Effort at Wheel using the formula - Wheel Tractive Effort = (Pinion Edge Tractive Effort*Diameter of Pinion 2)/Diameter of Wheel.

What are the other ways to Calculate Wheel Tractive Effort?

Here are the different ways to Calculate Wheel Tractive Effort-

Wheel Tractive Effort=(Gear Ratio of Transmission*Gear Ratio of Final Drive*(Efficiency of Driveline/100)*Torque Output from Powerplant)/Effective Radius of Wheel

Can the Tractive Effort at Wheel be negative?

No, the Tractive Effort at Wheel, measured in Force cannot be negative.

Which unit is used to measure Tractive Effort at Wheel?

Tractive Effort at Wheel is usually measured using the Newton[N] for Force. Exanewton[N], Meganewton[N], Kilonewton[N] are the few other units in which Tractive Effort at Wheel can be measured.

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Tractive Effort at Wheel Formula

​GoTractive Effort on Driven Wheel Formula

Tractive Effort at Wheel Example

Tractive Effort at Wheel Solution

Tractive Effort at Wheel Formula Elements

Other Formulas to find Wheel Tractive Effort

Other formulas in Tractive Effort category

How to Evaluate Tractive Effort at Wheel?

FAQs on Tractive Effort at Wheel

Variable Name

GoTractive Effort on Driven Wheel Formula