Equivalent Coefficient of Friction in Block Brake with Long Shoe Calculator

✖Coefficient of Friction For Brake is the ratio defining the force that resists the motion of the brake pad in relation to the brake disc or drum in contact with it.ⓘ Coefficient of Friction For Brake [μ]			+10% -10%
✖Semi-Block Angle is one-half of the total angle of the contacting surface of the block with the drum.ⓘ Semi-Block Angle [θ_w]			+10% -10%

✖Equivalent Coefficient of Friction is for a block brake with a long shoe.ⓘ Equivalent Coefficient of Friction in Block Brake with Long Shoe [µ^']

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Equivalent Coefficient of Friction in Block Brake with Long Shoe Solution

STEP 0: Pre-Calculation Summary

Formula Used

Equivalent Coefficient of Friction = Coefficient of Friction For Brake*((4*sin(Semi-Block Angle))/(2*Semi-Block Angle+sin(2*Semi-Block Angle)))
µ^' = μ*((4*sin(θ_w))/(2*θ_w+sin(2*θ_w)))
This formula uses 1 Functions, 3 Variables

Functions Used

sin - Sine is a trigonometric function that describes the ratio of the length of the opposite side of a right triangle to the length of the hypotenuse., sin(Angle)

Variables Used

Equivalent Coefficient of Friction - Equivalent Coefficient of Friction is for a block brake with a long shoe.
Coefficient of Friction For Brake - Coefficient of Friction For Brake is the ratio defining the force that resists the motion of the brake pad in relation to the brake disc or drum in contact with it.
Semi-Block Angle - (Measured in Radian) - Semi-Block Angle is one-half of the total angle of the contacting surface of the block with the drum.

STEP 1: Convert Input(s) to Base Unit

Coefficient of Friction For Brake: 0.35 --> No Conversion Required
Semi-Block Angle: 0.87 Radian --> 0.87 Radian No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

µ^' = μ*((4*sin(θ_w))/(2*θ_w+sin(2*θ_w))) --> 0.35*((4*sin(0.87))/(2*0.87+sin(2*0.87)))

Evaluating ... ...

µ^' = 0.392579147604209

STEP 3: Convert Result to Output's Unit

0.392579147604209 --> No Conversion Required

FINAL ANSWER

0.392579147604209 ≈ 0.392579 <-- Equivalent Coefficient of Friction

(Calculation completed in 00.004 seconds)

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Osmania University (OU), Hyderabad

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< Block Brake Calculators

Actual Coefficient of Friction given Equivalent Coefficient of Friction

LaTeX Go Coefficient of Friction For Brake = Equivalent Coefficient of Friction/((4*sin(Semi-Block Angle))/(2*Semi-Block Angle+sin(2*Semi-Block Angle)))

Equivalent Coefficient of Friction in Block Brake with Long Shoe

LaTeX Go Equivalent Coefficient of Friction = Coefficient of Friction For Brake*((4*sin(Semi-Block Angle))/(2*Semi-Block Angle+sin(2*Semi-Block Angle)))

Coefficient of Friction given Braking Torque

LaTeX Go Coefficient of Friction For Brake = Braking or Fixing Torque on Fixed Member/(Normal Reaction on Brake*Radius of Brake Drum)

Braking Torque when Brakes are Applied

LaTeX Go Braking or Fixing Torque on Fixed Member = Coefficient of Friction For Brake*Normal Reaction on Brake*Radius of Brake Drum

Equivalent Coefficient of Friction in Block Brake with Long Shoe Formula

LaTeX Go

Equivalent Coefficient of Friction = Coefficient of Friction For Brake*((4*sin(Semi-Block Angle))/(2*Semi-Block Angle+sin(2*Semi-Block Angle)))
µ^' = μ*((4*sin(θ_w))/(2*θ_w+sin(2*θ_w)))

Define Coefficient of Friction?

Coefficient of friction, the ratio of the frictional force resisting the motion of two surfaces in contact to the normal force pressing the two surfaces together. It is usually symbolized by the Greek letter mu (μ).

How to Calculate Equivalent Coefficient of Friction in Block Brake with Long Shoe?

Equivalent Coefficient of Friction in Block Brake with Long Shoe calculator uses Equivalent Coefficient of Friction = Coefficient of Friction For Brake*((4*sin(Semi-Block Angle))/(2*Semi-Block Angle+sin(2*Semi-Block Angle))) to calculate the Equivalent Coefficient of Friction, The Equivalent Coefficient of Friction in Block Brake with Long Shoe formula is defined as the ratio of the frictional force resisting the motion of two surfaces in contact to the normal force pressing the two surfaces together. Equivalent Coefficient of Friction is denoted by µ^' symbol.

How to calculate Equivalent Coefficient of Friction in Block Brake with Long Shoe using this online calculator? To use this online calculator for Equivalent Coefficient of Friction in Block Brake with Long Shoe, enter Coefficient of Friction For Brake (μ) & Semi-Block Angle (θ_w) and hit the calculate button. Here is how the Equivalent Coefficient of Friction in Block Brake with Long Shoe calculation can be explained with given input values -> 0.392579 = 0.35*((4*sin(0.87))/(2*0.87+sin(2*0.87))).

FAQ

What is Equivalent Coefficient of Friction in Block Brake with Long Shoe?

The Equivalent Coefficient of Friction in Block Brake with Long Shoe formula is defined as the ratio of the frictional force resisting the motion of two surfaces in contact to the normal force pressing the two surfaces together and is represented as µ^' = μ*((4*sin(θ_w))/(2*θ_w+sin(2*θ_w))) or Equivalent Coefficient of Friction = Coefficient of Friction For Brake*((4*sin(Semi-Block Angle))/(2*Semi-Block Angle+sin(2*Semi-Block Angle))). Coefficient of Friction For Brake is the ratio defining the force that resists the motion of the brake pad in relation to the brake disc or drum in contact with it & Semi-Block Angle is one-half of the total angle of the contacting surface of the block with the drum.

How to calculate Equivalent Coefficient of Friction in Block Brake with Long Shoe?

The Equivalent Coefficient of Friction in Block Brake with Long Shoe formula is defined as the ratio of the frictional force resisting the motion of two surfaces in contact to the normal force pressing the two surfaces together is calculated using Equivalent Coefficient of Friction = Coefficient of Friction For Brake*((4*sin(Semi-Block Angle))/(2*Semi-Block Angle+sin(2*Semi-Block Angle))). To calculate Equivalent Coefficient of Friction in Block Brake with Long Shoe, you need Coefficient of Friction For Brake (μ) & Semi-Block Angle (θ_w). With our tool, you need to enter the respective value for Coefficient of Friction For Brake & Semi-Block Angle 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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