Bending moment at central plane of centre crankshaft below flywheel at max torque Calculator

✖Resultant Reaction on CrankShaft Bearing is the total reaction force on the 3rd bearing of the crankshaft.ⓘ Resultant Reaction on CrankShaft Bearing [R₃]			+10% -10%
✖Centre Crankshaft Bearing Gap From Flywheel is the distance between the 3rd bearing of a center crankshaft and the line of action of flywheel weight.ⓘ Centre Crankshaft Bearing Gap From Flywheel [c₂]			+10% -10%

✖Bending Moment at Crankshaft Under Flywheel is the bending moment at the central plane of the crankshaft when an external force or moment is applied to the crankshaft causing it to bend.ⓘ Bending moment at central plane of centre crankshaft below flywheel at max torque [M_b]

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Formula

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Bending moment at central plane of centre crankshaft below flywheel at max torque

Formula

`"M"_{"b"} = "R"_{"3"}*"c"_{"2"}`

Example

`"240000N*mm"="1200N"*"200mm"`

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Bending moment at central plane of centre crankshaft below flywheel at max torque Solution

STEP 0: Pre-Calculation Summary

Formula Used

Bending Moment at Crankshaft Under Flywheel = Resultant Reaction on CrankShaft Bearing*Centre Crankshaft Bearing Gap From Flywheel
M_b = R₃*c₂
This formula uses 3 Variables

Variables Used

Bending Moment at Crankshaft Under Flywheel - (Measured in Newton Meter) - Bending Moment at Crankshaft Under Flywheel is the bending moment at the central plane of the crankshaft when an external force or moment is applied to the crankshaft causing it to bend.
Resultant Reaction on CrankShaft Bearing - (Measured in Newton) - Resultant Reaction on CrankShaft Bearing is the total reaction force on the 3rd bearing of the crankshaft.
Centre Crankshaft Bearing Gap From Flywheel - (Measured in Meter) - Centre Crankshaft Bearing Gap From Flywheel is the distance between the 3rd bearing of a center crankshaft and the line of action of flywheel weight.

STEP 1: Convert Input(s) to Base Unit

Resultant Reaction on CrankShaft Bearing: 1200 Newton --> 1200 Newton No Conversion Required
Centre Crankshaft Bearing Gap From Flywheel: 200 Millimeter --> 0.2 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

M_b = R₃*c₂ --> 1200*0.2

Evaluating ... ...

M_b = 240

STEP 3: Convert Result to Output's Unit

240 Newton Meter -->240000 Newton Millimeter (Check conversion here)

FINAL ANSWER

240000 Newton Millimeter <-- Bending Moment at Crankshaft Under Flywheel

(Calculation completed in 00.004 seconds)

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Home » Physics » IC Engine » Design of IC Engine Components » Crankshaft » Design of Centre Crankshaft » Design of Shaft Under Flywheel at Angle of Maximum Torque » Bending moment at central plane of centre crankshaft below flywheel at max torque

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Created by Saurabh Patil

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

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< 6 Design of Shaft Under Flywheel at Angle of Maximum Torque Calculators

Diameter of centre crankshaft under flywheel at max torque

Go Diameter of Shaft Under Flywheel = ((16/(pi*Shear Stress in Crankshaft Under Flywheel))*sqrt((Resultant Reaction on CrankShaft Bearing*Centre Crankshaft Bearing Gap From Flywheel)^2+(Tangential Force at Crank Pin*Distance Between Crank Pin and Crankshaft)^2))^(1/3)

Shear stress in centre crankshaft below flywheel for max torque

Go Shear Stress in Crankshaft Under Flywheel = ((16/(pi*Diameter of Shaft Under Flywheel^3))*sqrt((Resultant Reaction on CrankShaft Bearing*Centre Crankshaft Bearing Gap From Flywheel)^2+(Tangential Force at Crank Pin*Distance Between Crank Pin and Crankshaft)^2))

Diameter of centre crankshaft under flywheel at max torque given bending and torsional moment

Go Diameter of Shaft Under Flywheel = ((16/(pi*Shear Stress in Crankshaft Under Flywheel))*sqrt((Bending Moment at Crankshaft Under Flywheel)^2+(Torsional Moment at Crankshaft Under Flywheel)^2))^(1/3)

Shear stress in centre crankshaft below flywheel for max torque given bending and torsional moment

Go Shear Stress in Crankshaft Under Flywheel = ((16/(pi*Diameter of Shaft Under Flywheel^3))*sqrt((Bending Moment at Crankshaft Under Flywheel)^2+(Torsional Moment at Crankshaft Under Flywheel)^2))

Bending moment at central plane of centre crankshaft below flywheel at max torque

Go Bending Moment at Crankshaft Under Flywheel = Resultant Reaction on CrankShaft Bearing*Centre Crankshaft Bearing Gap From Flywheel

Torsional moment at central plane of centre crankshaft below flywheel at max torque

Go Torsional Moment at Crankshaft Under Flywheel = Tangential Force at Crank Pin*Distance Between Crank Pin and Crankshaft

Bending moment at central plane of centre crankshaft below flywheel at max torque Formula

Bending Moment at Crankshaft Under Flywheel = Resultant Reaction on CrankShaft Bearing*Centre Crankshaft Bearing Gap From Flywheel
M_b = R₃*c₂

Bending Moment vs Torsional Moment

In simple words, bending moment causes bending of the section, and Torsional moment (Torque) causes twisting of the section. If we talk about stresses induced, Due to torque-predominantly shear stress is induced in section and Due to bending - predominantly we have normal stresses.

Given a section and a moment is applied, then how do we decide that this moment is torque or bending moment?

It depends on the axis about which moment is applied. If the moment is applied about the longitudinal axis-it causes twisting of the section-then we call it torque and If we apply moment along the transverse axis-it causes bending of the section, then we can call it bending moment.

How to Calculate Bending moment at central plane of centre crankshaft below flywheel at max torque?

Bending moment at central plane of centre crankshaft below flywheel at max torque calculator uses Bending Moment at Crankshaft Under Flywheel = Resultant Reaction on CrankShaft Bearing*Centre Crankshaft Bearing Gap From Flywheel to calculate the Bending Moment at Crankshaft Under Flywheel, Bending moment at central plane of centre crankshaft below flywheel at max torque is the amount of bending moment at the central plane of the part of crankshaft under the flywheel when the center crankshaft is designed for the maximum torsional moment. Bending Moment at Crankshaft Under Flywheel is denoted by M_b symbol.

How to calculate Bending moment at central plane of centre crankshaft below flywheel at max torque using this online calculator? To use this online calculator for Bending moment at central plane of centre crankshaft below flywheel at max torque, enter Resultant Reaction on CrankShaft Bearing (R₃) & Centre Crankshaft Bearing Gap From Flywheel (c₂) and hit the calculate button. Here is how the Bending moment at central plane of centre crankshaft below flywheel at max torque calculation can be explained with given input values -> 2.4E+8 = 1200*0.2.

FAQ

What is Bending moment at central plane of centre crankshaft below flywheel at max torque?

Bending moment at central plane of centre crankshaft below flywheel at max torque is the amount of bending moment at the central plane of the part of crankshaft under the flywheel when the center crankshaft is designed for the maximum torsional moment and is represented as M_b = R₃*c₂ or Bending Moment at Crankshaft Under Flywheel = Resultant Reaction on CrankShaft Bearing*Centre Crankshaft Bearing Gap From Flywheel. Resultant Reaction on CrankShaft Bearing is the total reaction force on the 3rd bearing of the crankshaft & Centre Crankshaft Bearing Gap From Flywheel is the distance between the 3rd bearing of a center crankshaft and the line of action of flywheel weight.

How to calculate Bending moment at central plane of centre crankshaft below flywheel at max torque?

Bending moment at central plane of centre crankshaft below flywheel at max torque is the amount of bending moment at the central plane of the part of crankshaft under the flywheel when the center crankshaft is designed for the maximum torsional moment is calculated using Bending Moment at Crankshaft Under Flywheel = Resultant Reaction on CrankShaft Bearing*Centre Crankshaft Bearing Gap From Flywheel. To calculate Bending moment at central plane of centre crankshaft below flywheel at max torque, you need Resultant Reaction on CrankShaft Bearing (R₃) & Centre Crankshaft Bearing Gap From Flywheel (c₂). With our tool, you need to enter the respective value for Resultant Reaction on CrankShaft Bearing & Centre Crankshaft Bearing Gap From Flywheel 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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