Torsional moment in crankweb of centre crankshaft for max torque given polar section modulus Calculator

✖Shear Stress in Crankweb is the amount of shear stress (causes deformation by slippage along plane parallel to the imposed stress) in the crankweb.ⓘ Shear Stress in Crankweb [τ]			+10% -10%
✖Polar section modulus of crankweb is the ratio of polar moment of inertia about the neutral axis to the distance of extreme fiber from the neutral axis.ⓘ Polar Section Modulus of Crankweb [Z_p]			+10% -10%

✖Torsional Moment in Crankweb is the torsional reaction induced in the crankweb when an external twisting force is applied to the crankweb causing it to twist.ⓘ Torsional moment in crankweb of centre crankshaft for max torque given polar section modulus [M_t]

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Torsional moment in crankweb of centre crankshaft for max torque given polar section modulus

Formula

`"M"_{"t"} = "τ"*"Z"_{"p"}`

Example

`"10000N*mm"="10N/mm²"*"1000mm³"`

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Torsional moment in crankweb of centre crankshaft for max torque given polar section modulus Solution

STEP 0: Pre-Calculation Summary

Formula Used

Torsional Moment in Crankweb = Shear Stress in Crankweb*Polar Section Modulus of Crankweb
M_t = τ*Z_p
This formula uses 3 Variables

Variables Used

Torsional Moment in Crankweb - (Measured in Newton Meter) - Torsional Moment in Crankweb is the torsional reaction induced in the crankweb when an external twisting force is applied to the crankweb causing it to twist.
Shear Stress in Crankweb - (Measured in Pascal) - Shear Stress in Crankweb is the amount of shear stress (causes deformation by slippage along plane parallel to the imposed stress) in the crankweb.
Polar Section Modulus of Crankweb - (Measured in Cubic Meter) - Polar section modulus of crankweb is the ratio of polar moment of inertia about the neutral axis to the distance of extreme fiber from the neutral axis.

STEP 1: Convert Input(s) to Base Unit

Shear Stress in Crankweb: 10 Newton per Square Millimeter --> 10000000 Pascal (Check conversion here)
Polar Section Modulus of Crankweb: 1000 Cubic Millimeter --> 1E-06 Cubic Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

M_t = τ*Z_p --> 10000000*1E-06

Evaluating ... ...

M_t = 10

STEP 3: Convert Result to Output's Unit

10 Newton Meter -->10000 Newton Millimeter (Check conversion here)

FINAL ANSWER

10000 Newton Millimeter <-- Torsional Moment in Crankweb

(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 Crank Web at Angle of Maximum Torque » Torsional moment in crankweb of centre crankshaft for max torque given polar section modulus

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Created by Saurabh Patil

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

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< 20 Design of Crank Web at Angle of Maximum Torque Calculators

Maximum compressive stress in crankweb of centre crankshaft for max torque given crankweb dimensions

Go Maximum Compressive Stress in Crank Web = (6*Bending Moment in Crankweb due to Radial Force)/(Thickness of Crank Web^2*Width of Crank Web)+(6*Bending Moment in Crankweb due to Tangential Force)/(Thickness of Crank Web*Width of Crank Web^2)+(Radial Force at Crank Pin/(2*Width of Crank Web*Thickness of Crank Web))

Shear stress in crankweb of centre crankshaft for max torque given reaction on bearing1

Go Shear Stress in Crankweb = (4.5/(Width of Crank Web*Thickness of Crank Web^2))*((Horizontal Force at Bearing1 by Tangential Force*(Centre Crankshaft Bearing1 Gap from CrankPinCentre+(Length of Crank Pin/2)))-(Tangential Force at Crank Pin*(Length of Crank Pin/2)))

Torsional moment in crankweb of centre crankshaft for max torque given reaction on bearing1

Go Torsional Moment in Crankweb = (Horizontal Force at Bearing1 by Tangential Force*(Centre Crankshaft Bearing1 Gap from CrankPinCentre+(Length of Crank Pin/2)))-(Tangential Force at Crank Pin*(Length of Crank Pin/2))

Shear stress in crankweb of centre crankshaft for max torque given reaction on bearing2

Go Shear Stress in Crankweb = (4.5/(Width of Crank Web*Thickness of Crank Web^2))*(Horizontal Force at Bearing2 by Tangential Force*(Centre Crankshaft Bearing2 Gap from CrankPinCentre-(Length of Crank Pin/2)))

Bending moment in crankweb of centre crankshaft due to radial thrust for maximum torque

Go Bending Moment in Crankweb due to Radial Force = Vertical Reaction at Bearing 2 due to Radial Force*(Centre Crankshaft Bearing2 Gap from CrankPinCentre-(Length of Crank Pin/2)-(Thickness of Crank Web/2))

Maximum compressive stress in crankweb of centre crankshaft for max torque given direct stress

Go Maximum Compressive Stress in Crank Web = (Direct Compressive Stress in crankweb/2)+((sqrt((Direct Compressive Stress in crankweb^2)+(4*Shear Stress in Crankweb^2)))/2)

Maximum compressive stress in crankweb of centre crankshaft for max torque

Go Maximum Compressive Stress in Crank Web = Direct Compressive Stress in crankweb+Bending Stress in Crankweb due to Radial Force+Bending Stress in Crankweb due to Tangential Force

Bending moment in crankweb of centre crankshaft due to tangential thrust for maximum torque

Go Bending Moment in Crankweb due to Tangential Force = Tangential Force at Crank Pin*(Distance Between Crank Pin and Crankshaft-(Diameter of Crankshaft at Crankweb Joint/2))

Torsional moment in crankweb of centre crankshaft for max torque given reaction on bearing2

Go Torsional Moment in Crankweb = (Horizontal Force at Bearing2 by Tangential Force*(Centre Crankshaft Bearing2 Gap from CrankPinCentre-(Length of Crank Pin/2)))

Bending stress in crankweb of centre crankshaft due to tangential thrust for max torque given moment

Go Bending Stress in Crankweb due to Tangential Force = (6*Bending Moment in Crankweb due to Tangential Force)/(Thickness of Crank Web*Width of Crank Web^2)

Bending moment in crankweb of centre crankshaft due to tangential thrust for max torque given stress

Go Bending Moment in Crankweb due to Tangential Force = (Bending Stress in Crankweb due to Tangential Force*Thickness of Crank Web*Width of Crank Web^2)/6

Bending stress in crankweb of centre crankshaft due to radial thrust for max torque given moment

Go Bending Stress in Crankweb due to Radial Force = (6*Bending Moment in Crankweb due to Radial Force)/(Thickness of Crank Web^2*Width of Crank Web)

Bending moment in crankweb of centre crankshaft due to radial thrust for max torque given stress

Go Bending Moment in Crankweb due to Radial Force = (Bending Stress in Crankweb due to Radial Force*Width of Crank Web*Thickness of Crank Web^2)/6

Direct compressive stress in crankweb of centre crankshaft due to radial thrust for max torque

Go Direct Compressive Stress in crankweb = Radial Force at Crank Pin/(2*Width of Crank Web*Thickness of Crank Web)

Shear stress in crankweb of centre crankshaft for max torque given torsional moment

Go Shear Stress in Crankweb = (4.5*Torsional Moment in Crankweb)/(Width of Crank Web*Thickness of Crank Web^2)

Torsional moment in crankweb of centre crankshaft for max torque given shear stress

Go Torsional Moment in Crankweb = (Shear Stress in Crankweb*Width of Crank Web*Thickness of Crank Web^2)/4.5

Torsional moment in crankweb of centre crankshaft for max torque given polar section modulus

Go Torsional Moment in Crankweb = Shear Stress in Crankweb*Polar Section Modulus of Crankweb

Shear stress in crankweb of centre crankshaft for max torque given polar section modulus

Go Shear Stress in Crankweb = Torsional Moment in Crankweb/Polar Section Modulus of Crankweb

Polar section modulus of crankweb of centre crankshaft for max torque

Go Polar Section Modulus of Crankweb = (Width of Crank Web*Thickness of Crank Web^2)/4.5

Section modulus of crankweb of centre crankshaft for max torque

Go Section Modulus of Crankweb = (Width of Crank Web*Thickness of Crank Web^2)/6

Torsional moment in crankweb of centre crankshaft for max torque given polar section modulus Formula

Torsional Moment in Crankweb = Shear Stress in Crankweb*Polar Section Modulus of Crankweb
M_t = τ*Z_p

Design of Centre Crankshaft

A crankshaft is subjected to bending and torsional moments due to the following three forces: (i) Force exerted by the connecting rod on the crank pin. (ii) Weight of flywheel acting downward in the vertical direction. (iii) Resultant belt tensions acting in the horizontal direction. In the design of the centre crankshaft, two cases of the crank, positions are considered. They are as follows:
Case I: The crank is at the top dead centre position and subjected to maximum bending moment and no torsional moment.
Case II: The crank is at an angle with the line of dead centre positions and subjected to maximum torsional moment.

What is connecting rod?

The connecting rod is a connection between the piston and a crankshaft. It joins the piston pin with the crankpin. The small end of the connecting rod is connected to the piston pin and the big end to the crank pin. The purpose of the connecting rod is to convert the linear motion of the piston into the rotary motion of the crankshaft.

How to Calculate Torsional moment in crankweb of centre crankshaft for max torque given polar section modulus?

Torsional moment in crankweb of centre crankshaft for max torque given polar section modulus calculator uses Torsional Moment in Crankweb = Shear Stress in Crankweb*Polar Section Modulus of Crankweb to calculate the Torsional Moment in Crankweb, The torsional moment in crankweb of centre crankshaft for max torque given polar section modulus is the torsional moment in the crankweb which tends to twist the crankweb and when the centre crankshaft is designed for the maximum torsional moment. Torsional Moment in Crankweb is denoted by M_t symbol.

How to calculate Torsional moment in crankweb of centre crankshaft for max torque given polar section modulus using this online calculator? To use this online calculator for Torsional moment in crankweb of centre crankshaft for max torque given polar section modulus, enter Shear Stress in Crankweb (τ) & Polar Section Modulus of Crankweb (Z_p) and hit the calculate button. Here is how the Torsional moment in crankweb of centre crankshaft for max torque given polar section modulus calculation can be explained with given input values -> 1E+7 = 10000000*1E-06.

FAQ

What is Torsional moment in crankweb of centre crankshaft for max torque given polar section modulus?

The torsional moment in crankweb of centre crankshaft for max torque given polar section modulus is the torsional moment in the crankweb which tends to twist the crankweb and when the centre crankshaft is designed for the maximum torsional moment and is represented as M_t = τ*Z_p or Torsional Moment in Crankweb = Shear Stress in Crankweb*Polar Section Modulus of Crankweb. Shear Stress in Crankweb is the amount of shear stress (causes deformation by slippage along plane parallel to the imposed stress) in the crankweb & Polar section modulus of crankweb is the ratio of polar moment of inertia about the neutral axis to the distance of extreme fiber from the neutral axis.

How to calculate Torsional moment in crankweb of centre crankshaft for max torque given polar section modulus?

The torsional moment in crankweb of centre crankshaft for max torque given polar section modulus is the torsional moment in the crankweb which tends to twist the crankweb and when the centre crankshaft is designed for the maximum torsional moment is calculated using Torsional Moment in Crankweb = Shear Stress in Crankweb*Polar Section Modulus of Crankweb. To calculate Torsional moment in crankweb of centre crankshaft for max torque given polar section modulus, you need Shear Stress in Crankweb (τ) & Polar Section Modulus of Crankweb (Z_p). With our tool, you need to enter the respective value for Shear Stress in Crankweb & Polar Section Modulus of Crankweb 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 Torsional Moment in Crankweb?

In this formula, Torsional Moment in Crankweb uses Shear Stress in Crankweb & Polar Section Modulus of Crankweb. We can use 3 other way(s) to calculate the same, which is/are as follows -

Torsional Moment in Crankweb = (Horizontal Force at Bearing1 by Tangential Force*(Centre Crankshaft Bearing1 Gap from CrankPinCentre+(Length of Crank Pin/2)))-(Tangential Force at Crank Pin*(Length of Crank Pin/2))
Torsional Moment in Crankweb = (Horizontal Force at Bearing2 by Tangential Force*(Centre Crankshaft Bearing2 Gap from CrankPinCentre-(Length of Crank Pin/2)))
Torsional Moment in Crankweb = (Shear Stress in Crankweb*Width of Crank Web*Thickness of Crank Web^2)/4.5

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