Length of crankpin given bending stress in central plane of crankweb Calculator

✖Bending Stress in Crankweb is the bending stress in the crank web due to the bending moment acting onto the crank web.ⓘ Bending Stress in Crankweb [σ_b]			+10% -10%
✖Thickness of Crank Web is defined as the thickness of the crank web (the portion of a crank between the crankpin and the shaft) measured parallel to the crankpin longitudinal axis.ⓘ Thickness of Crank Web [t]			+10% -10%
✖Width of Crank Web is defined as the width of the crank web (the portion of a crank between the crankpin and the shaft) measured perpendicular to the crankpin longitudinal axis.ⓘ Width of Crank Web [w]			+10% -10%
✖Force on Crankweb is the force acting onto the crankweb used in assembly of crankshaft & connecting rod, converts reciprocation of piston to rotation of crankshaft.ⓘ Force on Crankweb [P]			+10% -10%

✖Length of Crank Pin is the size of the crankpin from one end to the other and tells how long is the crankpin.ⓘ Length of crankpin given bending stress in central plane of crankweb [l_c]

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Length of crankpin given bending stress in central plane of crankweb Solution

STEP 0: Pre-Calculation Summary

Formula Used

Length of Crank Pin = (((Bending Stress in Crankweb*Thickness of Crank Web^2*Width of Crank Web)/6)/Force on Crankweb-0.5*Thickness of Crank Web)/0.75
l_c = (((σ_b*t^2*w)/6)/P-0.5*t)/0.75
This formula uses 5 Variables

Variables Used

Length of Crank Pin - (Measured in Meter) - Length of Crank Pin is the size of the crankpin from one end to the other and tells how long is the crankpin.
Bending Stress in Crankweb - (Measured in Pascal) - Bending Stress in Crankweb is the bending stress in the crank web due to the bending moment acting onto the crank web.
Thickness of Crank Web - (Measured in Meter) - Thickness of Crank Web is defined as the thickness of the crank web (the portion of a crank between the crankpin and the shaft) measured parallel to the crankpin longitudinal axis.
Width of Crank Web - (Measured in Meter) - Width of Crank Web is defined as the width of the crank web (the portion of a crank between the crankpin and the shaft) measured perpendicular to the crankpin longitudinal axis.
Force on Crankweb - (Measured in Newton) - Force on Crankweb is the force acting onto the crankweb used in assembly of crankshaft & connecting rod, converts reciprocation of piston to rotation of crankshaft.

STEP 1: Convert Input(s) to Base Unit

Bending Stress in Crankweb: 14.42 Newton per Square Millimeter --> 14420000 Pascal (Check conversion here)
Thickness of Crank Web: 40 Millimeter --> 0.04 Meter (Check conversion here)
Width of Crank Web: 65 Millimeter --> 0.065 Meter (Check conversion here)
Force on Crankweb: 6500 Newton --> 6500 Newton No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

l_c = (((σ_b*t^2*w)/6)/P-0.5*t)/0.75 --> (((14420000*0.04^2*0.065)/6)/6500-0.5*0.04)/0.75

Evaluating ... ...

l_c = 0.0246044444444445

STEP 3: Convert Result to Output's Unit

0.0246044444444445 Meter -->24.6044444444445 Millimeter (Check conversion here)

FINAL ANSWER

24.6044444444445 ≈ 24.60444 Millimeter <-- Length of Crank Pin

(Calculation completed in 00.007 seconds)

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Home » Physics » IC Engine » Design of IC Engine Components » Crankshaft » Design of Side Crankshaft » Mechanical » Design of Crank Web at Top Dead Centre Position » Length of crankpin given bending stress in central plane of crankweb

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< Design of Crank Web at Top Dead Centre Position Calculators

Bending stress in central plane of crankweb

LaTeX Go Bending Stress in Crankweb = (6*(Force on Crankweb*(Length of Crank Pin*0.75+Thickness of Crank Web/2)))/(Thickness of Crank Web^2*Width of Crank Web)

Thickness of crankweb given bending moment at bearing 1 of side crankshaft at TDC position

LaTeX Go Thickness of Crank Web = Bending Moment at Bearing1 of Crankshaft/Force on Crank Pin-0.75*Length of Crank Pin-0.5*Length of Bearing1 of Crankshaft

Bending moment in central plane of crankweb

LaTeX Go Bending Moment at Central Plane of Crank Web = Force on Crankweb*(Length of Crank Pin*0.75+Thickness of Crank Web/2)

Direct compressive stress in central plane of crankweb of side crankshaft at TDC Position

LaTeX Go Direct Compressive Stress in Crankweb = Force on Crankweb/(Width of Crank Web*Thickness of Crank Web)

Length of crankpin given bending stress in central plane of crankweb Formula

LaTeX Go

Length of Crank Pin = (((Bending Stress in Crankweb*Thickness of Crank Web^2*Width of Crank Web)/6)/Force on Crankweb-0.5*Thickness of Crank Web)/0.75
l_c = (((σ_b*t^2*w)/6)/P-0.5*t)/0.75

Types of Crank Shaft

There are two types of crankshafts—side crankshaft and center crankshaft. The side crankshaft is also called the ‘overhung’ crankshaft. It has only one crank web and requires only two bearings for support. It is used in medium-size engines and large-size horizontal engines. The center crankshaft has two webs and three bearings for support. It is used in radial aircraft engines, stationary engines, and marine engines. It is more popular in automotive engines. Crankshafts are also classified as single-throw and multi-throw crankshafts depending upon the number of crankpins used in the assembly. Crankshafts used in multi-cylinder engines have more than one crank pin. They are called multi-throw crankshafts.

How to Calculate Length of crankpin given bending stress in central plane of crankweb?

Length of crankpin given bending stress in central plane of crankweb calculator uses Length of Crank Pin = (((Bending Stress in Crankweb*Thickness of Crank Web^2*Width of Crank Web)/6)/Force on Crankweb-0.5*Thickness of Crank Web)/0.75 to calculate the Length of Crank Pin, Length of crankpin given bending stress in central plane of crankweb is the total length of the crankpin that is used in the assembly of connecting rod with the crank. Length of Crank Pin is denoted by l_c symbol.

How to calculate Length of crankpin given bending stress in central plane of crankweb using this online calculator? To use this online calculator for Length of crankpin given bending stress in central plane of crankweb, enter Bending Stress in Crankweb (σ_b), Thickness of Crank Web (t), Width of Crank Web (w) & Force on Crankweb (P) and hit the calculate button. Here is how the Length of crankpin given bending stress in central plane of crankweb calculation can be explained with given input values -> 24604.44 = (((14420000*0.04^2*0.065)/6)/6500-0.5*0.04)/0.75.

FAQ

What is Length of crankpin given bending stress in central plane of crankweb?

Length of crankpin given bending stress in central plane of crankweb is the total length of the crankpin that is used in the assembly of connecting rod with the crank and is represented as l_c = (((σ_b*t^2*w)/6)/P-0.5*t)/0.75 or Length of Crank Pin = (((Bending Stress in Crankweb*Thickness of Crank Web^2*Width of Crank Web)/6)/Force on Crankweb-0.5*Thickness of Crank Web)/0.75. Bending Stress in Crankweb is the bending stress in the crank web due to the bending moment acting onto the crank web, Thickness of Crank Web is defined as the thickness of the crank web (the portion of a crank between the crankpin and the shaft) measured parallel to the crankpin longitudinal axis, Width of Crank Web is defined as the width of the crank web (the portion of a crank between the crankpin and the shaft) measured perpendicular to the crankpin longitudinal axis & Force on Crankweb is the force acting onto the crankweb used in assembly of crankshaft & connecting rod, converts reciprocation of piston to rotation of crankshaft.

How to calculate Length of crankpin given bending stress in central plane of crankweb?

Length of crankpin given bending stress in central plane of crankweb is the total length of the crankpin that is used in the assembly of connecting rod with the crank is calculated using Length of Crank Pin = (((Bending Stress in Crankweb*Thickness of Crank Web^2*Width of Crank Web)/6)/Force on Crankweb-0.5*Thickness of Crank Web)/0.75. To calculate Length of crankpin given bending stress in central plane of crankweb, you need Bending Stress in Crankweb (σ_b), Thickness of Crank Web (t), Width of Crank Web (w) & Force on Crankweb (P). With our tool, you need to enter the respective value for Bending Stress in Crankweb, Thickness of Crank Web, Width of Crank Web & Force on 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 Length of Crank Pin?

In this formula, Length of Crank Pin uses Bending Stress in Crankweb, Thickness of Crank Web, Width of Crank Web & Force on Crankweb. We can use 1 other way(s) to calculate the same, which is/are as follows -

Length of Crank Pin = (Bending Moment at Central Plane of Crank Web/Force on Crankweb-0.5*Thickness of Crank Web)/0.75

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