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
Rf = d1*l1*Pb
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
Rf = d1*l1*Pb --> 0.025*0.031*4700000
Evaluating ... ...
Rf = 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)

Credits

Created by Saurabh Patil
Shri Govindram Seksaria Institute of Technology and Science (SGSITS ), Indore
Saurabh Patil has created this Calculator and 700+ more calculators!
Verified by Ravi Khiyani
Shri Govindram Seksaria Institute of Technology and Science (SGSITS), Indore
Ravi Khiyani has verified this Calculator and 300+ more calculators!

17 Design of Fulcrum Pin Calculators

Length of Fulcrum Pin of Rocker Arm considering Double Shear Failure of Pin
Go Length of Fulcrum Pin = 1.25*sqrt((2*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)))/(pi*Shear Stress in Fulcrum Pin))
Diameter of Fulcrum Pin of Rocker Arm Considering Double Shear Failure of Pin
Go Diameter of Fulcrum Pin = sqrt((2*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)))/(pi*Shear Stress in Fulcrum Pin))
Shear Stress in Fulcrum Pin of Rocker Arm
Go Shear Stress in Fulcrum Pin = (2*(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)))/(pi*Diameter of Fulcrum Pin^2))
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)))
Length of Fulcrum Pin of Rocker Arm given Reaction at Pin
Go Length of Fulcrum Pin = 1.25*sqrt((2*Force at Fulcrum Pin)/(pi*Shear Stress in Fulcrum Pin))
Diameter of Fulcrum Pin of Rocker Arm given Reaction at Pin
Go Diameter of Fulcrum Pin = sqrt((2*Force at Fulcrum Pin)/(pi*Shear Stress in Fulcrum Pin))
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)
Diameter of Fulcrum Pin of Rocker Arm given Bearing Pressure
Go Diameter of Fulcrum Pin = Force at Fulcrum Pin/(Length of Fulcrum Pin*Bearing Pressure for Fulcrum Pin)
Length of Fulcrum Pin of Rocker Arm given Bearing Pressure
Go Length of Fulcrum Pin = Force at Fulcrum Pin/(Diameter of Fulcrum Pin*Bearing Pressure for Fulcrum Pin)
Reaction at Fulcrum Pin of Rocker Arm Considering bearing Pressure
Go Force at Fulcrum Pin = Diameter of Fulcrum Pin*Length of Fulcrum Pin*Bearing Pressure for Fulcrum Pin
Shear Stress in Fulcrum Pin of Rocker Arm given Reaction at Pin
Go Shear Stress in Fulcrum Pin = (2*Force at Fulcrum Pin)/(pi*Diameter of Fulcrum Pin^2)
Reaction at Fulcrum Pin of Rocker Arm considering Double Shear Failure of Pin
Go Force at Fulcrum Pin = (Shear Stress in Fulcrum Pin*pi*Diameter of Fulcrum Pin^2)/2
Outside Diameter of Boss of Rocker Arm at Fulcrum Pin
Go Outside Diameter of Boss of Rocker Arm = 2*Diameter of Fulcrum Pin
Length of Fulcrum Pin of Rocker Arm given Diameter of Fulcrum Pin
Go Length of Fulcrum Pin = Diameter of Fulcrum Pin*1.25
Diameter of Fulcrum Pin of Rocker Arm given Length of Fulcrum Pin
Go Diameter of Fulcrum Pin = Length of Fulcrum Pin/1.25

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
Rf = d1*l1*Pb

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 Rf 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 (Pb) 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 Rf = d1*l1*Pb 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 (Pb). 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
Let Others Know
Facebook
Twitter
Reddit
LinkedIn
Email
WhatsApp
Copied!