Compressive Stress in Tappet of Rocker Arm of Engine Valve Calculator

✖Gas Load on Exhaust Valve is the amount of force acting on the inner side of the exhaust valve due to the back pressure or cylinder pressure when the exhaust valve opens.ⓘ Gas Load on Exhaust Valve [P_g]			+10% -10%
✖Inertia Force on Valve is the force acting opposite to the direction of valve motion onto the valve.ⓘ Inertia Force on Valve [P]			+10% -10%
✖Spring Force is the force exerted by a compressed or stretched spring upon any object that is attached to it.ⓘ Spring Force [P_s]			+10% -10%
✖Core Diameter of Tappet is defined as the smallest diameter of the thread of the tappet or the stud of a rocker arm.ⓘ Core Diameter of Tappet [d_c]			+10% -10%

✖Compressive Stress in Tappet or stud is the force per unit area that is responsible for the deformation of the tappet such that the volume of the material reduces and its length decreases.ⓘ Compressive Stress in Tappet of Rocker Arm of Engine Valve [σ_c]

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Compressive Stress in Tappet of Rocker Arm of Engine Valve Solution

STEP 0: Pre-Calculation Summary

Formula Used

Compressive Stress in Tappet = (4*(Gas Load on Exhaust Valve+Inertia Force on Valve+Spring Force))/(pi*Core Diameter of Tappet^2)
σ_c = (4*(P_g+P+P_s))/(pi*d_c^2)
This formula uses 1 Constants, 5 Variables

Constants Used

pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288

Variables Used

Compressive Stress in Tappet - (Measured in Pascal) - Compressive Stress in Tappet or stud is the force per unit area that is responsible for the deformation of the tappet such that the volume of the material reduces and its length decreases.
Gas Load on Exhaust Valve - (Measured in Newton) - Gas Load on Exhaust Valve is the amount of force acting on the inner side of the exhaust valve due to the back pressure or cylinder pressure when the exhaust valve opens.
Inertia Force on Valve - (Measured in Newton) - Inertia Force on Valve is the force acting opposite to the direction of valve motion onto the valve.
Spring Force - (Measured in Newton) - Spring Force is the force exerted by a compressed or stretched spring upon any object that is attached to it.
Core Diameter of Tappet - (Measured in Meter) - Core Diameter of Tappet is defined as the smallest diameter of the thread of the tappet or the stud of a rocker arm.

STEP 1: Convert Input(s) to Base Unit

Gas Load on Exhaust Valve: 1680 Newton --> 1680 Newton No Conversion Required
Inertia Force on Valve: 115 Newton --> 115 Newton No Conversion Required
Spring Force: 8.88 Newton --> 8.88 Newton No Conversion Required
Core Diameter of Tappet: 8 Millimeter --> 0.008 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

σ_c = (4*(P_g+P+P_s))/(pi*d_c^2) --> (4*(1680+115+8.88))/(pi*0.008^2)

Evaluating ... ...

σ_c = 35887052.343076

STEP 3: Convert Result to Output's Unit

35887052.343076 Pascal -->35.887052343076 Newton per Square Millimeter (Check conversion here)

FINAL ANSWER

35.887052343076 ≈ 35.88705 Newton per Square Millimeter <-- Compressive Stress in Tappet

(Calculation completed in 00.020 seconds)

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Home » Physics » IC Engine » Design of IC Engine Components » Rocker Arm » Mechanical » Design of Tappet » Compressive Stress in Tappet of Rocker Arm of Engine Valve

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< Design of Tappet Calculators

Core Diameter of Tappet or Stud of Rocker Arm of Engine Valve

LaTeX Go Core Diameter of Tappet = sqrt((4*(Gas Load on Exhaust Valve+Inertia Force on Valve+Spring Force))/(pi*Compressive Stress in Tappet))

Compressive Stress in Tappet of Rocker Arm of Engine Valve

LaTeX Go Compressive Stress in Tappet = (4*(Gas Load on Exhaust Valve+Inertia Force on Valve+Spring Force))/(pi*Core Diameter of Tappet^2)

Compressive Force on Tappet of Rocker Arm of Engine Valve given Stress in Tappet

LaTeX Go Compressive Force on Tappet = (Compressive Stress in Tappet*pi*Core Diameter of Tappet^2)/4

Compressive Force on Tappet of Rocker Arm of Engine Valve

LaTeX Go Compressive Force on Tappet = Gas Load on Exhaust Valve+Inertia Force on Valve+Spring Force

Compressive Stress in Tappet of Rocker Arm of Engine Valve Formula

LaTeX Go

Compressive Stress in Tappet = (4*(Gas Load on Exhaust Valve+Inertia Force on Valve+Spring Force))/(pi*Core Diameter of Tappet^2)
σ_c = (4*(P_g+P+P_s))/(pi*d_c^2)

Crank Rocker Mechanism

Crank Rocker Mechanism is a four-bar linkage. In this linkage, the shortest link rotates fully while the other link pivoted to the fixed link oscillates. It is a Grashoff linkage for which the sum of the lengths of the shortest link and the largest link is less than the sum of the lengths of the other two links.
In the crank rocker mechanism, the link adjacent to the shortest link is fixed. The position of the other three links does not affect the nature of the mechanism.

How to Calculate Compressive Stress in Tappet of Rocker Arm of Engine Valve?

Compressive Stress in Tappet of Rocker Arm of Engine Valve calculator uses Compressive Stress in Tappet = (4*(Gas Load on Exhaust Valve+Inertia Force on Valve+Spring Force))/(pi*Core Diameter of Tappet^2) to calculate the Compressive Stress in Tappet, The Compressive stress in tappet of rocker arm of engine valve is the force per unit area on the tappet or stud that is responsible for the deformation of the tappet such that the volume of the material reduces and its length decreases. Compressive Stress in Tappet is denoted by σ_c symbol.

How to calculate Compressive Stress in Tappet of Rocker Arm of Engine Valve using this online calculator? To use this online calculator for Compressive Stress in Tappet of Rocker Arm of Engine Valve, enter Gas Load on Exhaust Valve (P_g), Inertia Force on Valve (P), Spring Force (P_s) & Core Diameter of Tappet (d_c) and hit the calculate button. Here is how the Compressive Stress in Tappet of Rocker Arm of Engine Valve calculation can be explained with given input values -> 3.6E-5 = (4*(1680+115+8.88))/(pi*0.008^2).

FAQ

What is Compressive Stress in Tappet of Rocker Arm of Engine Valve?

The Compressive stress in tappet of rocker arm of engine valve is the force per unit area on the tappet or stud that is responsible for the deformation of the tappet such that the volume of the material reduces and its length decreases and is represented as σ_c = (4*(P_g+P+P_s))/(pi*d_c^2) or Compressive Stress in Tappet = (4*(Gas Load on Exhaust Valve+Inertia Force on Valve+Spring Force))/(pi*Core Diameter of Tappet^2). Gas Load on Exhaust Valve is the amount of force acting on the inner side of the exhaust valve due to the back pressure or cylinder pressure when the exhaust valve opens, Inertia Force on Valve is the force acting opposite to the direction of valve motion onto the valve, Spring Force is the force exerted by a compressed or stretched spring upon any object that is attached to it & Core Diameter of Tappet is defined as the smallest diameter of the thread of the tappet or the stud of a rocker arm.

How to calculate Compressive Stress in Tappet of Rocker Arm of Engine Valve?

The Compressive stress in tappet of rocker arm of engine valve is the force per unit area on the tappet or stud that is responsible for the deformation of the tappet such that the volume of the material reduces and its length decreases is calculated using Compressive Stress in Tappet = (4*(Gas Load on Exhaust Valve+Inertia Force on Valve+Spring Force))/(pi*Core Diameter of Tappet^2). To calculate Compressive Stress in Tappet of Rocker Arm of Engine Valve, you need Gas Load on Exhaust Valve (P_g), Inertia Force on Valve (P), Spring Force (P_s) & Core Diameter of Tappet (d_c). With our tool, you need to enter the respective value for Gas Load on Exhaust Valve, Inertia Force on Valve, Spring Force & Core Diameter of Tappet 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 Compressive Stress in Tappet?

In this formula, Compressive Stress in Tappet uses Gas Load on Exhaust Valve, Inertia Force on Valve, Spring Force & Core Diameter of Tappet. We can use 1 other way(s) to calculate the same, which is/are as follows -

Compressive Stress in Tappet = (4*Total Force on Rocker Arm of Exhaust Valve)/(pi*Core Diameter of Tappet^2)

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