Power Absorbed by Disc Brake Calculator

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Race Car Vehicle Dynamics

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Suspension Geometry

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Wheel Centre Rates for Independent Suspension

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Ride Rate and Ride Frequency for Race Cars

Tire Behavior in Racing Car

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Weight Transfer during Braking

✖Line pressure is defined as the pressure acting on the surface lining of the friction disc during braking operation.ⓘ Line Pressure [p]			+10% -10%
✖Area of One Piston per Caliper is defined as the area that the piston of caliper covers when brake force is applied.ⓘ Area of One Piston per Caliper [a_p]			+10% -10%
✖Coefficient of Friction of Pad Material is the frictional coefficient of the brake pad material, and it is a constant.ⓘ Coefficient of Friction of Pad Material [μ_p]			+10% -10%
✖Mean Radius of Caliper unit to Disc Axis is defined as the distance from the center of disc brake to the center portion of the caliper.ⓘ Mean Radius of Caliper unit to Disc Axis [R_m]			+10% -10%
✖Number of Caliper Units is defined as the number of calipers that are attached to the disc pads to facilitate braking operation.ⓘ Number of Caliper Units [n]			+10% -10%
✖Revolution of Discs per Minute is defined as the number of revolutions the disc pad makes in a minute.ⓘ Revolution of Discs per Minute [N]			+10% -10%

✖Power Absorbed by Disc Brake is defined as the power that is absorbed by the calipers and disc brakes when braking force is applied.ⓘ Power Absorbed by Disc Brake [power]

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Formula

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Power Absorbed by Disc Brake

Formula

`"power" = 2*"p"*"a"_{"p"}*"μ"_{"p"}*"R"_{"m"}*"n"*2*"n"*"N"/60`

Example

`"0.006105W"=2*"8N/m²"*"0.01m²"*"0.34"*"0.25m"*"2.01"*2*"2.01"*"200/min"/60`

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Power Absorbed by Disc Brake Solution

STEP 0: Pre-Calculation Summary

Formula Used

Power Absorbed by Disc Brake = 2*Line Pressure*Area of One Piston per Caliper*Coefficient of Friction of Pad Material*Mean Radius of Caliper unit to Disc Axis*Number of Caliper Units*2*Number of Caliper Units*Revolution of Discs per Minute/60
power = 2*p*a_p*μ_p*R_m*n*2*n*N/60
This formula uses 7 Variables

Variables Used

Power Absorbed by Disc Brake - (Measured in Watt) - Power Absorbed by Disc Brake is defined as the power that is absorbed by the calipers and disc brakes when braking force is applied.
Line Pressure - (Measured in Pascal) - Line pressure is defined as the pressure acting on the surface lining of the friction disc during braking operation.
Area of One Piston per Caliper - (Measured in Square Meter) - Area of One Piston per Caliper is defined as the area that the piston of caliper covers when brake force is applied.
Coefficient of Friction of Pad Material - Coefficient of Friction of Pad Material is the frictional coefficient of the brake pad material, and it is a constant.
Mean Radius of Caliper unit to Disc Axis - (Measured in Meter) - Mean Radius of Caliper unit to Disc Axis is defined as the distance from the center of disc brake to the center portion of the caliper.
Number of Caliper Units - Number of Caliper Units is defined as the number of calipers that are attached to the disc pads to facilitate braking operation.
Revolution of Discs per Minute - (Measured in 1 Per Second) - Revolution of Discs per Minute is defined as the number of revolutions the disc pad makes in a minute.

STEP 1: Convert Input(s) to Base Unit

Line Pressure: 8 Newton per Square Meter --> 8 Pascal (Check conversion here)
Area of One Piston per Caliper: 0.01 Square Meter --> 0.01 Square Meter No Conversion Required
Coefficient of Friction of Pad Material: 0.34 --> No Conversion Required
Mean Radius of Caliper unit to Disc Axis: 0.25 Meter --> 0.25 Meter No Conversion Required
Number of Caliper Units: 2.01 --> No Conversion Required
Revolution of Discs per Minute: 200 1 Per Minute --> 3.33333333333333 1 Per Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

power = 2*p*a_p*μ_p*R_m*n*2*n*N/60 --> 2*8*0.01*0.34*0.25*2.01*2*2.01*3.33333333333333/60

Evaluating ... ...

power = 0.00610503999999999

STEP 3: Convert Result to Output's Unit

0.00610503999999999 Watt --> No Conversion Required

FINAL ANSWER

0.00610503999999999 ≈ 0.006105 Watt <-- Power Absorbed by Disc Brake

(Calculation completed in 00.004 seconds)

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Created by Syed Adnan

Ramaiah University of Applied Sciences (RUAS), bangalore

Syed Adnan has created this Calculator and 200+ more calculators!

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National Institute Of Technology (NIT), Hamirpur

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< 12 Wheel Centre Rates for Independent Suspension Calculators

Assumed Initial Roll Rate given Required Anti-Roll Bar Rate

Go Assumed Initial Roll Rate = (Required Anti Roll Bar Rate+Wheel Centre Rate*(Track Width of Vehicle^2)/2)*(Tyre Vertical Rate*(Track Width of Vehicle^2)/2)/(Tyre Vertical Rate*(Track Width of Vehicle^2)/2+Required Anti Roll Bar Rate+Wheel Centre Rate*(Track Width of Vehicle^2)/2)

Tyre Rate given Required Anti-Roll Bar Rate

Go Tyre Vertical Rate = (((Required Anti Roll Bar Rate+Wheel Centre Rate*(Track Width of Vehicle^2)/2)*Assumed Initial Roll Rate)/((Required Anti Roll Bar Rate+Wheel Centre Rate*(Track Width of Vehicle^2)/2)-Assumed Initial Roll Rate))*2/Track Width of Vehicle^2

Wheel Centre Rate given Required Anti-Roll Bar Rate

Go Wheel Centre Rate = (Assumed Initial Roll Rate*(Tyre Vertical Rate*(Track Width of Vehicle^2)/2)/(Tyre Vertical Rate*(Track Width of Vehicle^2)/2-Assumed Initial Roll Rate)-Required Anti Roll Bar Rate)/((Track Width of Vehicle^2)/2)

Required Anti-Roll Bar Rate

Go Required Anti Roll Bar Rate = Assumed Initial Roll Rate*(Tyre Vertical Rate*(Track Width of Vehicle^2)/2)/(Tyre Vertical Rate*(Track Width of Vehicle^2)/2-Assumed Initial Roll Rate)-Wheel Centre Rate*(Track Width of Vehicle^2)/2

Power Absorbed by Disc Brake

Go Power Absorbed by Disc Brake = 2*Line Pressure*Area of One Piston per Caliper*Coefficient of Friction of Pad Material*Mean Radius of Caliper unit to Disc Axis*Number of Caliper Units*2*Number of Caliper Units*Revolution of Discs per Minute/60

Area of Brake Lining

Go Area of Brake Lining = (Brake Lining Width*Brake Drum Radius*Angle between Linings of Brake Shoes*pi)/180

Ride Rate given Wheel Centre Rate

Go Ride Rate = (Tyre Vertical Rate*Wheel Centre Rate)/(Tyre Vertical Rate+Wheel Centre Rate)

Wheel Centre Rate

Go Wheel Centre Rate = (Ride Rate*Tyre Vertical Rate)/(Tyre Vertical Rate-Ride Rate)

Tyre Vertical Rate given Wheel Centre Rate

Go Tyre Vertical Rate = (Wheel Centre Rate*Ride Rate)/(Wheel Centre Rate-Ride Rate)

Work Done in Braking

Go Work done in Braking = Braking Force on Brake Drum*Stopping Distance during Braking in Meters

Brake Fluid Pressure

Go Brake Fluid Pressure = Force Produced by Master Cylinder/Area of Master Cylinder Piston

Braking Efficiency

Go Braking Efficiency = (Braking Force on Brake Drum/Weight of Vehicle)*100

Power Absorbed by Disc Brake Formula

What do you mean by power absorbed by the disc brake?

The energy absorbed by a brake depends upon the type of motion of the moving body. The motion of a body may be either pure translation or pure rotation or a combination of both translation and rotation. The energy corresponding to these motions is kinetic energy. Disc brake systems provide superior stopping power to drum brake systems, due in large part to a disc brake system's ability to dissipate heat more efficiently than drum brakes.

How to Calculate Power Absorbed by Disc Brake?

Power Absorbed by Disc Brake calculator uses Power Absorbed by Disc Brake = 2*Line Pressure*Area of One Piston per Caliper*Coefficient of Friction of Pad Material*Mean Radius of Caliper unit to Disc Axis*Number of Caliper Units*2*Number of Caliper Units*Revolution of Discs per Minute/60 to calculate the Power Absorbed by Disc Brake, The Power absorbed by disc brake formula is defined as the total power that is absorbed in the form of heat generation when the braking force is applied on the disc brakes to lower the speed of wheel. Power Absorbed by Disc Brake is denoted by power symbol.

How to calculate Power Absorbed by Disc Brake using this online calculator? To use this online calculator for Power Absorbed by Disc Brake, enter Line Pressure (p), Area of One Piston per Caliper (a_p), Coefficient of Friction of Pad Material (μ_p), Mean Radius of Caliper unit to Disc Axis (R_m), Number of Caliper Units (n) & Revolution of Discs per Minute (N) and hit the calculate button. Here is how the Power Absorbed by Disc Brake calculation can be explained with given input values -> 0.006105 = 2*8*0.01*0.34*0.25*2.01*2*2.01*3.33333333333333/60.

FAQ

What is Power Absorbed by Disc Brake?

The Power absorbed by disc brake formula is defined as the total power that is absorbed in the form of heat generation when the braking force is applied on the disc brakes to lower the speed of wheel and is represented as power = 2*p*a_p*μ_p*R_m*n*2*n*N/60 or Power Absorbed by Disc Brake = 2*Line Pressure*Area of One Piston per Caliper*Coefficient of Friction of Pad Material*Mean Radius of Caliper unit to Disc Axis*Number of Caliper Units*2*Number of Caliper Units*Revolution of Discs per Minute/60. Line pressure is defined as the pressure acting on the surface lining of the friction disc during braking operation, Area of One Piston per Caliper is defined as the area that the piston of caliper covers when brake force is applied, Coefficient of Friction of Pad Material is the frictional coefficient of the brake pad material, and it is a constant, Mean Radius of Caliper unit to Disc Axis is defined as the distance from the center of disc brake to the center portion of the caliper, Number of Caliper Units is defined as the number of calipers that are attached to the disc pads to facilitate braking operation & Revolution of Discs per Minute is defined as the number of revolutions the disc pad makes in a minute.

How to calculate Power Absorbed by Disc Brake?

The Power absorbed by disc brake formula is defined as the total power that is absorbed in the form of heat generation when the braking force is applied on the disc brakes to lower the speed of wheel is calculated using Power Absorbed by Disc Brake = 2*Line Pressure*Area of One Piston per Caliper*Coefficient of Friction of Pad Material*Mean Radius of Caliper unit to Disc Axis*Number of Caliper Units*2*Number of Caliper Units*Revolution of Discs per Minute/60. To calculate Power Absorbed by Disc Brake, you need Line Pressure (p), Area of One Piston per Caliper (a_p), Coefficient of Friction of Pad Material (μ_p), Mean Radius of Caliper unit to Disc Axis (R_m), Number of Caliper Units (n) & Revolution of Discs per Minute (N). With our tool, you need to enter the respective value for Line Pressure, Area of One Piston per Caliper, Coefficient of Friction of Pad Material, Mean Radius of Caliper unit to Disc Axis, Number of Caliper Units & Revolution of Discs per Minute and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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