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Front Roll Rate given Front Lateral Load Transfer Formula

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Front Roll Rate is the stiffness of your car in the roll mode. Or one can say, it is the roll angle per unit lateral acceleration. Check FAQs

K Φf = \frac{K Φr}{(\frac{\frac{A y}{[g]} \cdot \frac{m}{t F} \cdot H}{(W f - \frac{x}{b} \cdot Z rf)}) - 1}

K_Φf - Front Roll Rate?K_Φr - Rear Roll Rate?A_y - Lateral Acceleration?m - Mass of Vehicle?t_F - Front Track Width?H - Centre of Gravity Distance to Roll Axis?W_f - Front Lateral Load Transfer?x - Horizontal Distance of C.G. from Rear Axle?b - Wheelbase of Vehicle?Z_rf - Front Roll Centre Height?[g] - Gravitational acceleration on Earth?

Front Roll Rate given Front Lateral Load Transfer Example

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Here is how the Front Roll Rate given Front Lateral Load Transfer equation looks like with Values.

Here is how the Front Roll Rate given Front Lateral Load Transfer equation looks like with Units.

Here is how the Front Roll Rate given Front Lateral Load Transfer equation looks like.

67659.5693 = \frac{67800}{(\frac{\frac{9.81}{9.8066} \cdot \frac{155}{1.5} \cdot 0.335}{(226 - \frac{2.3}{2.7} \cdot 245)}) - 1}

67659.5693Nm/rad = \frac{67800Nm/rad}{(\frac{\frac{9.81m/s²}{9.8066m/s²} \cdot \frac{155kg}{1.5m} \cdot 0.335m}{(226kg - \frac{2.3m}{2.7m} \cdot 245m)}) - 1}

67659.5693 = \frac{67800}{(\frac{\frac{9.81}{9.8066} \cdot \frac{155}{1.5} \cdot 0.335}{(226 - \frac{2.3}{2.7} \cdot 245)}) - 1}

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Front Roll Rate given Front Lateral Load Transfer Solution

Follow our step by step solution on how to calculate Front Roll Rate given Front Lateral Load Transfer?

FIRST Step Consider the formula

K Φf = \frac{K Φr}{(\frac{\frac{A y}{[g]} \cdot \frac{m}{t F} \cdot H}{(W f - \frac{x}{b} \cdot Z rf)}) - 1}

Next Step Substitute values of Variables

∴

K Φf = \frac{67800Nm/rad}{(\frac{\frac{9.81m/s²}{[g]} \cdot \frac{155kg}{1.5m} \cdot 0.335m}{(226kg - \frac{2.3m}{2.7m} \cdot 245m)}) - 1}

Next Step Substitute values of Constants

∴

K Φf = \frac{67800Nm/rad}{(\frac{\frac{9.81m/s²}{9.8066m/s²} \cdot \frac{155kg}{1.5m} \cdot 0.335m}{(226kg - \frac{2.3m}{2.7m} \cdot 245m)}) - 1}

Next Step Prepare to Evaluate

∴

K Φf = \frac{67800}{(\frac{\frac{9.81}{9.8066} \cdot \frac{155}{1.5} \cdot 0.335}{(226 - \frac{2.3}{2.7} \cdot 245)}) - 1}

Next Step Evaluate

∴

K Φf = 67659.5692969837Nm/rad

LAST Step Rounding Answer

∴

K Φf = 67659.5693Nm/rad

Front Roll Rate given Front Lateral Load Transfer Formula Elements

Variables

Constants

Front Roll Rate

Front Roll Rate is the stiffness of your car in the roll mode. Or one can say, it is the roll angle per unit lateral acceleration.

Symbol: K_Φf

Measurement: Torsion ConstantUnit: Nm/rad

Note: Value should be greater than 0.

Formulas to find Front Roll Rate

Rear Roll Rate

Rear Roll Rate is the stiffness of your car in the roll mode. Or one can say, it is the roll angle per unit lateral acceleration.

Symbol: K_Φr

Measurement: Torsion ConstantUnit: Nm/rad

Note: Value should be greater than 0.

Formulas to find Rear Roll Rate

Lateral Acceleration

Lateral Acceleration is the acceleration in the lateral direction when the vehicle is cornering.

Symbol: A_y

Measurement: AccelerationUnit: m/s²

Note: Value can be positive or negative.

Formulas to find Lateral Acceleration

Mass of Vehicle

Mass of Vehicle is the total mass of the vehicle.

Symbol: m

Measurement: WeightUnit: kg

Note: Value should be greater than 0.

Formulas to find Mass of Vehicle

Front Track Width

Front Track Width is the distance between the centers of front wheels.

Symbol: t_F

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Front Track Width

Centre of Gravity Distance to Roll Axis

Centre of Gravity Distance to Roll Axis is the distance between the centre of gravity and the roll axis.

Symbol: H

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Centre of Gravity Distance to Roll Axis

Front Lateral Load Transfer

Front Lateral Load Transfer is the load transfer on to the front wheels due to lateral acceleration.

Symbol: W_f

Measurement: WeightUnit: kg

Note: Value can be positive or negative.

Formulas to find Front Lateral Load Transfer

Horizontal Distance of C.G. from Rear Axle

Horizontal Distance of C.G. from Rear Axle is the distance of vehicle's center of gravity(C.G.) from rear axle measured along wheelbase of vehicle.

Symbol: x

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Horizontal Distance of C.G. from Rear Axle

Wheelbase of Vehicle

Wheelbase of Vehicle is the center distance between the front and the rear axle of the vehicle.

Symbol: b

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Wheelbase of Vehicle

Front Roll Centre Height

Front Roll Centre Height is the height of the notional point at which the cornering forces in the suspension are reacted to the vehicle body.

Symbol: Z_rf

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Front Roll Centre Height

Gravitational acceleration on Earth

Gravitational acceleration on Earth means that the velocity of an object in free fall will increase by 9.8 m/s2 every second.

Symbol: [g]

Value: 9.80665 m/s²

Other formulas in Front Lateral Load Transfer for Race Cars category

Go Front Lateral Load Transfer

W f = \frac{A y}{[g]} \cdot \frac{m}{t F} \cdot H \cdot \frac{K Φf}{K Φf + K Φr} + \frac{x}{b} \cdot Z rf

Go Front Roll Centre Height given Front Lateral Load Transfer

Z rf = (W f - \frac{A y}{[g]} \cdot \frac{m}{t F} \cdot H \cdot \frac{K Φf}{K Φf + K Φr}) \cdot \frac{b}{x}

How to Evaluate Front Roll Rate given Front Lateral Load Transfer?

Front Roll Rate given Front Lateral Load Transfer evaluator uses Front Roll Rate = Rear Roll Rate/(((Lateral Acceleration/[g]*Mass of Vehicle/Front Track Width*Centre of Gravity Distance to Roll Axis)/((Front Lateral Load Transfer-Horizontal Distance of C.G. from Rear Axle/Wheelbase of Vehicle*Front Roll Centre Height)))-1) to evaluate the Front Roll Rate, The Front roll rate given front lateral load transfer formula is used to find the roll rate of front suspension when the front lateral load transfer is known. Front Roll Rate is denoted by K_Φf symbol.

How to evaluate Front Roll Rate given Front Lateral Load Transfer using this online evaluator? To use this online evaluator for Front Roll Rate given Front Lateral Load Transfer, enter Rear Roll Rate (K_Φr), Lateral Acceleration (A_y), Mass of Vehicle (m), Front Track Width (t_F), Centre of Gravity Distance to Roll Axis (H), Front Lateral Load Transfer (W_f), Horizontal Distance of C.G. from Rear Axle (x), Wheelbase of Vehicle (b) & Front Roll Centre Height (Z_rf) and hit the calculate button.

FAQs on Front Roll Rate given Front Lateral Load Transfer

What is the formula to find Front Roll Rate given Front Lateral Load Transfer?

The formula of Front Roll Rate given Front Lateral Load Transfer is expressed as Front Roll Rate = Rear Roll Rate/(((Lateral Acceleration/[g]*Mass of Vehicle/Front Track Width*Centre of Gravity Distance to Roll Axis)/((Front Lateral Load Transfer-Horizontal Distance of C.G. from Rear Axle/Wheelbase of Vehicle*Front Roll Centre Height)))-1). Here is an example- 67659.57 = 67800/(((9.81/[g]*155/1.5*0.335)/((226-2.3/2.7*245)))-1).

How to calculate Front Roll Rate given Front Lateral Load Transfer?

With Rear Roll Rate (K_Φr), Lateral Acceleration (A_y), Mass of Vehicle (m), Front Track Width (t_F), Centre of Gravity Distance to Roll Axis (H), Front Lateral Load Transfer (W_f), Horizontal Distance of C.G. from Rear Axle (x), Wheelbase of Vehicle (b) & Front Roll Centre Height (Z_rf) we can find Front Roll Rate given Front Lateral Load Transfer using the formula - Front Roll Rate = Rear Roll Rate/(((Lateral Acceleration/[g]*Mass of Vehicle/Front Track Width*Centre of Gravity Distance to Roll Axis)/((Front Lateral Load Transfer-Horizontal Distance of C.G. from Rear Axle/Wheelbase of Vehicle*Front Roll Centre Height)))-1). This formula also uses Gravitational acceleration on Earth constant(s).

Can the Front Roll Rate given Front Lateral Load Transfer be negative?

No, the Front Roll Rate given Front Lateral Load Transfer, measured in Torsion Constant cannot be negative.

Which unit is used to measure Front Roll Rate given Front Lateral Load Transfer?

Front Roll Rate given Front Lateral Load Transfer is usually measured using the Newton Meter per Radian[Nm/rad] for Torsion Constant. Newton Centimeter per Radian[Nm/rad] are the few other units in which Front Roll Rate given Front Lateral Load Transfer can be measured.

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Front Roll Rate given Front Lateral Load Transfer Formula

Front Roll Rate given Front Lateral Load Transfer Example

Front Roll Rate given Front Lateral Load Transfer Solution

Front Roll Rate given Front Lateral Load Transfer Formula Elements

Other formulas in Front Lateral Load Transfer for Race Cars category

How to Evaluate Front Roll Rate given Front Lateral Load Transfer?

FAQs on Front Roll Rate given Front Lateral Load Transfer

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