Reaction at Fulcrum Pin of Rocker Arm Considering bearing Pressure Calculator

✖Diameter of Fulcrum Pin is the diameter of the pin used at the fulcrum joint.ⓘ Diameter of Fulcrum Pin [d₁]			+10% -10%
✖Length of Fulcrum Pin is the total length of the pin used at the fulcrum joint.ⓘ Length of Fulcrum Pin [l₁]			+10% -10%
✖Bearing Pressure for Fulcrum Pin is the compressive force acting on the contact area between two components of the pin having no relative motion between them.ⓘ Bearing Pressure for Fulcrum Pin [P_bf]			+10% -10%

✖Force at Fulcrum Pin is the force acting onto the fulcrum pin (the pivot about which a lever turns) used as a joint at a fulcrum point.ⓘ Reaction at Fulcrum Pin of Rocker Arm Considering bearing Pressure [R_f]

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Formula

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Reaction at Fulcrum Pin of Rocker Arm Considering bearing Pressure

Formula

R f = d 1 \cdot l 1 \cdot P bf

Example

3642.5 N = 25 mm \cdot 31 mm \cdot 4.7 N/mm²

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Reaction at Fulcrum Pin of Rocker Arm Considering bearing Pressure Solution

STEP 0: Pre-Calculation Summary

Formula Used

Force at Fulcrum Pin = Diameter of Fulcrum Pin*Length of Fulcrum Pin*Bearing Pressure for Fulcrum Pin
R_f = d₁*l₁*P_bf
This formula uses 4 Variables

Variables Used

Force at Fulcrum Pin - (Measured in Newton) - Force at Fulcrum Pin is the force acting onto the fulcrum pin (the pivot about which a lever turns) used as a joint at a fulcrum point.
Diameter of Fulcrum Pin - (Measured in Meter) - Diameter of Fulcrum Pin is the diameter of the pin used at the fulcrum joint.
Length of Fulcrum Pin - (Measured in Meter) - Length of Fulcrum Pin is the total length of the pin used at the fulcrum joint.
Bearing Pressure for Fulcrum Pin - (Measured in Pascal) - Bearing Pressure for Fulcrum Pin is the compressive force acting on the contact area between two components of the pin having no relative motion between them.

STEP 1: Convert Input(s) to Base Unit

Diameter of Fulcrum Pin: 25 Millimeter --> 0.025 Meter (Check conversion here)
Length of Fulcrum Pin: 31 Millimeter --> 0.031 Meter (Check conversion here)
Bearing Pressure for Fulcrum Pin: 4.7 Newton per Square Millimeter --> 4700000 Pascal (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R_f = d₁*l₁*P_bf --> 0.025*0.031*4700000

Evaluating ... ...

R_f = 3642.5

STEP 3: Convert Result to Output's Unit

3642.5 Newton --> No Conversion Required

FINAL ANSWER

3642.5 Newton <-- Force at Fulcrum Pin

(Calculation completed in 00.004 seconds)

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Shri Govindram Seksaria Institute of Technology and Science (SGSITS ), Indore

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< Design of Fulcrum Pin Calculators

Angle between Two Arms of Rocker Arm

Go Angle Between Rocker Arms = pi-arccos(-(Total Force on Rocker Arm of Exhaust Valve^2+Force on Roller Pin^2-Force at Fulcrum Pin^2)/(2*Total Force on Rocker Arm of Exhaust Valve*Force on Roller Pin))

Reaction at Fulcrum Pin of Rocker Arm

Go Force at Fulcrum Pin = sqrt(Total Force on Rocker Arm of Exhaust Valve^2+Force on Roller Pin^2-2*Force on Roller Pin*Total Force on Rocker Arm of Exhaust Valve*cos(Angle Between Rocker Arms))

Reaction at Fulcrum Pin of Rocker Arm for Equal Arm Lengths

Go Force at Fulcrum Pin = Total Force on Rocker Arm of Exhaust Valve*sqrt(2*(1-cos(Angle Between Rocker Arms)))

Bearing Pressure at Fulcrum Pin of Rocker Arm

Go Bearing Pressure for Fulcrum Pin = (Force at Fulcrum Pin)/(Diameter of Fulcrum Pin*Length of Fulcrum Pin)

Reaction at Fulcrum Pin of Rocker Arm Considering bearing Pressure Formula

Force at Fulcrum Pin = Diameter of Fulcrum Pin*Length of Fulcrum Pin*Bearing Pressure for Fulcrum Pin
R_f = d₁*l₁*P_bf

Function of a rocker arm in IC Engine

The basic function of the rocker arm is to open or close the inlet or exhaust valve with respect to the motion of the cam and follower. The force required to operate the inlet valve is comparatively less. However, it is usual practice to make rocker arms for inlet and exhaust valves identical.

How to Calculate Reaction at Fulcrum Pin of Rocker Arm Considering bearing Pressure?

Reaction at Fulcrum Pin of Rocker Arm Considering bearing Pressure calculator uses Force at Fulcrum Pin = Diameter of Fulcrum Pin*Length of Fulcrum Pin*Bearing Pressure for Fulcrum Pin to calculate the Force at Fulcrum Pin, The Reaction at fulcrum pin of rocker arm considering bearing pressure is the reaction force acting onto the fulcrum pin (the pivot about which a lever turns) used as a joint at a fulcrum point, due to force due to exhaust valve reaction and force on roller pin. Force at Fulcrum Pin is denoted by R_f symbol.

How to calculate Reaction at Fulcrum Pin of Rocker Arm Considering bearing Pressure using this online calculator? To use this online calculator for Reaction at Fulcrum Pin of Rocker Arm Considering bearing Pressure, enter Diameter of Fulcrum Pin (d₁), Length of Fulcrum Pin (l₁) & Bearing Pressure for Fulcrum Pin (P_bf) and hit the calculate button. Here is how the Reaction at Fulcrum Pin of Rocker Arm Considering bearing Pressure calculation can be explained with given input values -> 3642.5 = 0.025*0.031*4700000.

FAQ

What is Reaction at Fulcrum Pin of Rocker Arm Considering bearing Pressure?

The Reaction at fulcrum pin of rocker arm considering bearing pressure is the reaction force acting onto the fulcrum pin (the pivot about which a lever turns) used as a joint at a fulcrum point, due to force due to exhaust valve reaction and force on roller pin and is represented as R_f = d₁*l₁*P_bf or Force at Fulcrum Pin = Diameter of Fulcrum Pin*Length of Fulcrum Pin*Bearing Pressure for Fulcrum Pin. Diameter of Fulcrum Pin is the diameter of the pin used at the fulcrum joint, Length of Fulcrum Pin is the total length of the pin used at the fulcrum joint & Bearing Pressure for Fulcrum Pin is the compressive force acting on the contact area between two components of the pin having no relative motion between them.

How to calculate Reaction at Fulcrum Pin of Rocker Arm Considering bearing Pressure?

The Reaction at fulcrum pin of rocker arm considering bearing pressure is the reaction force acting onto the fulcrum pin (the pivot about which a lever turns) used as a joint at a fulcrum point, due to force due to exhaust valve reaction and force on roller pin is calculated using Force at Fulcrum Pin = Diameter of Fulcrum Pin*Length of Fulcrum Pin*Bearing Pressure for Fulcrum Pin. To calculate Reaction at Fulcrum Pin of Rocker Arm Considering bearing Pressure, you need Diameter of Fulcrum Pin (d₁), Length of Fulcrum Pin (l₁) & Bearing Pressure for Fulcrum Pin (P_bf). With our tool, you need to enter the respective value for Diameter of Fulcrum Pin, Length of Fulcrum Pin & Bearing Pressure for Fulcrum Pin and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Force at Fulcrum Pin?

In this formula, Force at Fulcrum Pin uses Diameter of Fulcrum Pin, Length of Fulcrum Pin & Bearing Pressure for Fulcrum Pin. We can use 3 other way(s) to calculate the same, which is/are as follows -

Force at Fulcrum Pin = sqrt(Total Force on Rocker Arm of Exhaust Valve^2+Force on Roller Pin^2-2*Force on Roller Pin*Total Force on Rocker Arm of Exhaust Valve*cos(Angle Between Rocker Arms))
Force at Fulcrum Pin = Total Force on Rocker Arm of Exhaust Valve*sqrt(2*(1-cos(Angle Between Rocker Arms)))
Force at Fulcrum Pin = (Shear Stress in Fulcrum Pin*pi*Diameter of Fulcrum Pin^2)/2

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