Outside Diameter of Boss of Rocker Arm at Fulcrum Pin Calculator

✖Outside Diameter of Boss of Rocker Arm is the external diameter of the boss (protruding feature on a workpiece) of the rocker arm.ⓘ Outside Diameter of Boss of Rocker Arm at Fulcrum Pin [D_o]

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Formula

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Outside Diameter of Boss of Rocker Arm at Fulcrum Pin

Formula

`"D"_{"o"} = 2*"d"_{"1"}`

Example

`"50mm"=2*"25mm"`

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Outside Diameter of Boss of Rocker Arm at Fulcrum Pin Solution

STEP 0: Pre-Calculation Summary

Formula Used

Outside Diameter of Boss of Rocker Arm = 2*Diameter of Fulcrum Pin
D_o = 2*d₁
This formula uses 2 Variables

Variables Used

Outside Diameter of Boss of Rocker Arm - (Measured in Meter) - Outside Diameter of Boss of Rocker Arm is the external diameter of the boss (protruding feature on a workpiece) of the rocker arm.
Diameter of Fulcrum Pin - (Measured in Meter) - Diameter of Fulcrum Pin is the diameter of the pin used at the fulcrum joint.

STEP 1: Convert Input(s) to Base Unit

Diameter of Fulcrum Pin: 25 Millimeter --> 0.025 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

D_o = 2*d₁ --> 2*0.025

Evaluating ... ...

D_o = 0.05

STEP 3: Convert Result to Output's Unit

0.05 Meter -->50 Millimeter (Check conversion here)

FINAL ANSWER

50 Millimeter <-- Outside Diameter of Boss of Rocker Arm

(Calculation completed in 00.004 seconds)

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Home » Physics » IC Engine » Design of IC Engine Components » Rocker Arm » Design of Fulcrum Pin » Outside Diameter of Boss of Rocker Arm at Fulcrum Pin

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Created by Saurabh Patil

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

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< 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

Outside Diameter of Boss of Rocker Arm at Fulcrum Pin Formula

Outside Diameter of Boss of Rocker Arm = 2*Diameter of Fulcrum Pin
D_o = 2*d₁

Design of cross section of rocker arm

The arm is subjected to bending moment under the action of force Pe. The bending moment is maximum at the centre of the pivot. In general, the central section passing through the fulcrum pin is sufficiently strong to withstand the bending moment. Therefore, we will consider the cross-section of the arm near the boss of the fulcrum pin. The outside diameter of the boss of the rocker arm at the fulcrum pin is twice the diameter of the fulcrum pin.

How to Calculate Outside Diameter of Boss of Rocker Arm at Fulcrum Pin?

Outside Diameter of Boss of Rocker Arm at Fulcrum Pin calculator uses Outside Diameter of Boss of Rocker Arm = 2*Diameter of Fulcrum Pin to calculate the Outside Diameter of Boss of Rocker Arm, The Outside diameter of boss of rocker arm at fulcrum pin is the external diameter of the boss (protruding feature on a workpiece) of the fulcrum pin of the rocker arm. Outside Diameter of Boss of Rocker Arm is denoted by D_o symbol.

How to calculate Outside Diameter of Boss of Rocker Arm at Fulcrum Pin using this online calculator? To use this online calculator for Outside Diameter of Boss of Rocker Arm at Fulcrum Pin, enter Diameter of Fulcrum Pin (d₁) and hit the calculate button. Here is how the Outside Diameter of Boss of Rocker Arm at Fulcrum Pin calculation can be explained with given input values -> 50000 = 2*0.025.

FAQ

What is Outside Diameter of Boss of Rocker Arm at Fulcrum Pin?

The Outside diameter of boss of rocker arm at fulcrum pin is the external diameter of the boss (protruding feature on a workpiece) of the fulcrum pin of the rocker arm and is represented as D_o = 2*d₁ or Outside Diameter of Boss of Rocker Arm = 2*Diameter of Fulcrum Pin. Diameter of Fulcrum Pin is the diameter of the pin used at the fulcrum joint.

How to calculate Outside Diameter of Boss of Rocker Arm at Fulcrum Pin?

The Outside diameter of boss of rocker arm at fulcrum pin is the external diameter of the boss (protruding feature on a workpiece) of the fulcrum pin of the rocker arm is calculated using Outside Diameter of Boss of Rocker Arm = 2*Diameter of Fulcrum Pin. To calculate Outside Diameter of Boss of Rocker Arm at Fulcrum Pin, you need Diameter of Fulcrum Pin (d₁). With our tool, you need to enter the respective value for Diameter of Fulcrum Pin 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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