Bending Stress in Rocker Arm near Boss of Rocker Arm given Bending Moment Calculator

✖Bending Moment in Rocker Arm is the amount of bending moment in the rocker arm (changes radial movement into linear movement) of any assembly.ⓘ Bending Moment in Rocker Arm [M_barm]			+10% -10%
✖Thickness of Rocker Arm Web is the measurement of how thick is the web of the rocker arm's cross section.ⓘ Thickness of Rocker Arm Web [b_web]			+10% -10%

✖Bending Stress in Rocker Arm is the amount of bending stress generated in the plane of the rocker arm of any assembly and tends to bend the arm.ⓘ Bending Stress in Rocker Arm near Boss of Rocker Arm given Bending Moment [σ_b]

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Formula

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Bending Stress in Rocker Arm near Boss of Rocker Arm given Bending Moment

Formula

`"σ"_{"b"} = ("M"_{"b"}"arm")/(37*"b"_{"web"}^3)`

Example

`"12.74748N/mm²"="300000N*mm"/(37*("8.6mm")^3)`

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Bending Stress in Rocker Arm near Boss of Rocker Arm given Bending Moment Solution

STEP 0: Pre-Calculation Summary

Formula Used

Bending Stress in Rocker Arm = Bending Moment in Rocker Arm/(37*Thickness of Rocker Arm Web^3)
σ_b = M_barm/(37*b_web^3)
This formula uses 3 Variables

Variables Used

Bending Stress in Rocker Arm - (Measured in Pascal) - Bending Stress in Rocker Arm is the amount of bending stress generated in the plane of the rocker arm of any assembly and tends to bend the arm.
Bending Moment in Rocker Arm - (Measured in Newton Meter) - Bending Moment in Rocker Arm is the amount of bending moment in the rocker arm (changes radial movement into linear movement) of any assembly.
Thickness of Rocker Arm Web - (Measured in Meter) - Thickness of Rocker Arm Web is the measurement of how thick is the web of the rocker arm's cross section.

STEP 1: Convert Input(s) to Base Unit

Bending Moment in Rocker Arm: 300000 Newton Millimeter --> 300 Newton Meter (Check conversion here)
Thickness of Rocker Arm Web: 8.6 Millimeter --> 0.0086 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

σ_b = M_barm/(37*b_web^3) --> 300/(37*0.0086^3)

Evaluating ... ...

σ_b = 12747475.2350549

STEP 3: Convert Result to Output's Unit

12747475.2350549 Pascal -->12.7474752350549 Newton per Square Millimeter (Check conversion here)

FINAL ANSWER

12.7474752350549 ≈ 12.74748 Newton per Square Millimeter <-- Bending Stress in Rocker Arm

(Calculation completed in 00.005 seconds)

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Home » Physics » IC Engine » Design of IC Engine Components » Rocker Arm » Force on Rocker Arm of Valves » Bending Stress in Rocker Arm near Boss of Rocker Arm given Bending Moment

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Created by Saurabh Patil

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< 16 Force on Rocker Arm of Valves Calculators

Total Force on Rocker Arm of Exhaust Valve given Suction Pressure

Go Total Force on Rocker Arm of Exhaust Valve = (pi*Back Pressure on Engine Valve*Diameter of Valve Head^2)/4+Mass of Valve*Acceleration of Valve+(pi*Maximum Suction Pressure*Diameter of Valve Head^2)/4

Total Force on Rocker Arm of Inlet Valve given Suction Pressure

Go Total Force on Rocker Arm of Inlet Valve = Mass of Valve*Acceleration of Valve+(pi*Maximum Suction Pressure*Diameter of Valve Head^2)/4

Total Force on Rocker Arm of Exhaust Valve given Bending Moment near Boss of Rocker Arm

Go Total Force on Rocker Arm of Exhaust Valve = Bending Moment in Rocker Arm/(Length of Rocker Arm on Exhaust Valve Side-Diameter of Fulcrum Pin)

Downward Inertia Force on Exhaust Valve given Total Force on Rocker Arm of Exhaust Valve

Go Inertia Force on Valve = Total Force on Rocker Arm of Exhaust Valve-(Spring Force on Rocker Arm Valve+Gas Load on Exhaust Valve)

Initial Spring Force on Exhaust Valve given Total Force on Rocker Arm of Exhaust Valve

Go Spring Force on Rocker Arm Valve = Total Force on Rocker Arm of Exhaust Valve-(Inertia Force on Valve+Gas Load on Exhaust Valve)

Gas Load on Exhaust Valve given Total Force on Rocker Arm of Exhaust Valve

Go Gas Load on Exhaust Valve = Total Force on Rocker Arm of Exhaust Valve-(Inertia Force on Valve+Spring Force on Rocker Arm Valve)

Total Force on Rocker Arm of Exhaust Valve

Go Total Force on Rocker Arm of Exhaust Valve = Gas Load on Exhaust Valve+Inertia Force on Valve+Spring Force on Rocker Arm Valve

Maximum Suction Pressure on Exhaust Valve

Go Maximum Suction Pressure = (4*Spring Force on Rocker Arm Valve)/(pi*Diameter of Valve Head^2)

Back Pressure when Exhaust Valve Opens

Go Back Pressure on Engine Valve = (4*Gas Load on Exhaust Valve)/(pi*Diameter of Valve Head^2)

Initial Spring Force on Exhaust Valve

Go Spring Force on Rocker Arm Valve = (pi*Maximum Suction Pressure*Diameter of Valve Head^2)/4

Gas Load on Exhaust Valve when it Opens

Go Gas Load on Exhaust Valve = (pi*Back Pressure on Engine Valve*Diameter of Valve Head^2)/4

Downward Inertia Force on Valve given Total Force on Rocker Arm of Inlet Valve

Go Inertia Force on Valve = Total Force on Rocker Arm of Inlet Valve-Spring Force on Rocker Arm Valve

Initial Spring Force on Valve given Total Force on Rocker Arm of Inlet Valve

Go Spring Force on Rocker Arm Valve = Total Force on Rocker Arm of Inlet Valve-Inertia Force on Valve

Total Force on Rocker Arm of Inlet Valve

Go Total Force on Rocker Arm of Inlet Valve = Inertia Force on Valve+Spring Force on Rocker Arm Valve

Bending Stress in Rocker Arm near Boss of Rocker Arm given Bending Moment

Go Bending Stress in Rocker Arm = Bending Moment in Rocker Arm/(37*Thickness of Rocker Arm Web^3)

Downward Inertia Force on Exhaust Valve as it Moves Upwards

Go Inertia Force on Valve = Mass of Valve*Acceleration of Valve

Bending Stress in Rocker Arm near Boss of Rocker Arm given Bending Moment Formula

Bending Stress in Rocker Arm = Bending Moment in Rocker Arm/(37*Thickness of Rocker Arm Web^3)
σ_b = M_barm/(37*b_web^3)

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 Bending Stress in Rocker Arm near Boss of Rocker Arm given Bending Moment?

Bending Stress in Rocker Arm near Boss of Rocker Arm given Bending Moment calculator uses Bending Stress in Rocker Arm = Bending Moment in Rocker Arm/(37*Thickness of Rocker Arm Web^3) to calculate the Bending Stress in Rocker Arm, The Bending Stress in Rocker Arm near Boss of Rocker Arm given Bending Moment is the amount of bending stress generated in the plane of the rocker arm of the engine valve assembly and tends to bend the arm. Bending Stress in Rocker Arm is denoted by σ_b symbol.

How to calculate Bending Stress in Rocker Arm near Boss of Rocker Arm given Bending Moment using this online calculator? To use this online calculator for Bending Stress in Rocker Arm near Boss of Rocker Arm given Bending Moment, enter Bending Moment in Rocker Arm (M_barm) & Thickness of Rocker Arm Web (b_web) and hit the calculate button. Here is how the Bending Stress in Rocker Arm near Boss of Rocker Arm given Bending Moment calculation can be explained with given input values -> 1.3E-5 = 300/(37*0.0086^3).

FAQ

What is Bending Stress in Rocker Arm near Boss of Rocker Arm given Bending Moment?

The Bending Stress in Rocker Arm near Boss of Rocker Arm given Bending Moment is the amount of bending stress generated in the plane of the rocker arm of the engine valve assembly and tends to bend the arm and is represented as σ_b = M_barm/(37*b_web^3) or Bending Stress in Rocker Arm = Bending Moment in Rocker Arm/(37*Thickness of Rocker Arm Web^3). Bending Moment in Rocker Arm is the amount of bending moment in the rocker arm (changes radial movement into linear movement) of any assembly & Thickness of Rocker Arm Web is the measurement of how thick is the web of the rocker arm's cross section.

How to calculate Bending Stress in Rocker Arm near Boss of Rocker Arm given Bending Moment?

The Bending Stress in Rocker Arm near Boss of Rocker Arm given Bending Moment is the amount of bending stress generated in the plane of the rocker arm of the engine valve assembly and tends to bend the arm is calculated using Bending Stress in Rocker Arm = Bending Moment in Rocker Arm/(37*Thickness of Rocker Arm Web^3). To calculate Bending Stress in Rocker Arm near Boss of Rocker Arm given Bending Moment, you need Bending Moment in Rocker Arm (M_barm) & Thickness of Rocker Arm Web (b_web). With our tool, you need to enter the respective value for Bending Moment in Rocker Arm & Thickness of Rocker Arm Web 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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