Maximum Force Acting on Connecting Rod given Maximum Gas Pressure Calculator

✖Inner Diameter of Engine Cylinder is the diameter of the interior or the inside surface of an engine cylinder.ⓘ Inner Diameter of Engine Cylinder [D_i]			+10% -10%
✖Maximum Pressure in Engine Cylinder is the maximum amount of pressure that is acting inside or is present inside the cylinder.ⓘ Maximum Pressure in Engine Cylinder [p_max]			+10% -10%

✖Force on connecting rod is the force acting on the connecting rod of an IC Engine during operation.ⓘ Maximum Force Acting on Connecting Rod given Maximum Gas Pressure [P_cr]

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Formula

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Maximum Force Acting on Connecting Rod given Maximum Gas Pressure

Formula

`"P"_{"cr"} = pi*"D"_{"i"}^2*"p"_{"max"}/4`

Example

`"19800N"=pi*("79.38852mm")^2*"4N/mm²"/4`

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Maximum Force Acting on Connecting Rod given Maximum Gas Pressure Solution

STEP 0: Pre-Calculation Summary

Formula Used

Force on Connecting Rod = pi*Inner Diameter of Engine Cylinder^2*Maximum Pressure in Engine Cylinder/4
P_cr = pi*D_i^2*p_max/4
This formula uses 1 Constants, 3 Variables

Constants Used

pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288

Variables Used

Force on Connecting Rod - (Measured in Newton) - Force on connecting rod is the force acting on the connecting rod of an IC Engine during operation.
Inner Diameter of Engine Cylinder - (Measured in Meter) - Inner Diameter of Engine Cylinder is the diameter of the interior or the inside surface of an engine cylinder.
Maximum Pressure in Engine Cylinder - (Measured in Pascal) - Maximum Pressure in Engine Cylinder is the maximum amount of pressure that is acting inside or is present inside the cylinder.

STEP 1: Convert Input(s) to Base Unit

Inner Diameter of Engine Cylinder: 79.38852 Millimeter --> 0.07938852 Meter (Check conversion here)
Maximum Pressure in Engine Cylinder: 4 Newton per Square Millimeter --> 4000000 Pascal (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

P_cr = pi*D_i^2*p_max/4 --> pi*0.07938852^2*4000000/4

Evaluating ... ...

P_cr = 19800.0042768114

STEP 3: Convert Result to Output's Unit

19800.0042768114 Newton --> No Conversion Required

FINAL ANSWER

19800.0042768114 ≈ 19800 Newton <-- Force on Connecting Rod

(Calculation completed in 00.004 seconds)

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

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< 11 Buckling in Connecting Rod Calculators

Critical Buckling Load on Connecting Rod by Rankine Formula

Go Critical Buckling Load on Connecting Rod = Compressive Yield Stress*Cross Sectional Area of Connecting Rod/(1+Constant Used in Buckling Load Formula*(Length of the Connecting Rod/Radius of Gyration of I Section About XX Axis)^2)

Whipping Stress in Connecting Rod of I Cross Section

Go Whipping Stress = Mass of Connecting Rod*Angular Velocity of Crank^2*Crank Radius of Engine*Length of the Connecting Rod*4.593/(1000*Thickness of Flange And Web of I Section^3)

Critical Buckling Load on Steel Connecting Rod given Thickness of Flange or Web of Connecting Rod

Go Critical Buckling Load on Steel Connecting Rod = (261393*Compressive Yield Stress*Thickness of Flange And Web of I Section^4)/(23763*Thickness of Flange And Web of I Section^2+Length of the Connecting Rod)

Maximum Force Acting on Connecting Rod given Maximum Gas Pressure

Go Force on Connecting Rod = pi*Inner Diameter of Engine Cylinder^2*Maximum Pressure in Engine Cylinder/4

Force Acting on Connecting Rod

Go Force on Connecting Rod = Force on Piston Head/cos(Inclination of Connecting Rod With Line of Stroke)

Area Moment of Inertia for Connecting Rod Cross Section

Go Area Moment of Inertia For Connecting Rod = Cross Sectional Area of Connecting Rod*Radius of Gyration For Connecting Rod^2

Critical Buckling Load on Connecting Rod Considering Factor of Safety

Go Critical Buckling Load on Connecting Rod = Force on Connecting Rod*Factor of Safety For Connecting Rod

Radius of Gyration of I Cross Section about yy Axis

Go Radius of Gyration of I Section About YY Axis = 0.996*Thickness of Flange And Web of I Section

Radius of Gyration of I Cross Section about xx Axis

Go Radius of Gyration of I Section About XX Axis = 1.78*Thickness of Flange And Web of I Section

Height of Cross Section of Connecting Rod at Middle Section

Go Height of Connecting Rod at Mid Section = 5*Thickness of Flange And Web of I Section

Width of I Cross Section of Connecting Rod

Go Width of Connecting Rod = 4*Thickness of Flange And Web of I Section

Maximum Force Acting on Connecting Rod given Maximum Gas Pressure Formula

Force on Connecting Rod = pi*Inner Diameter of Engine Cylinder^2*Maximum Pressure in Engine Cylinder/4
P_cr = pi*D_i^2*p_max/4

Forces on Connecting Rod

During each rotation of the crankshaft, the connecting rod is often subject to large and repetitive forces: shear forces due to the angle between the piston and the crankpin, compression forces as the piston moves downwards, and tensile forces as the piston move upwards. These forces are proportional to the engine speed (RPM) squared.

Failure of Connecting Rod

Failure of a connecting rod often called "throwing a rod", is one of the most common causes of catastrophic engine failure in cars, frequently driving the broken rod through the side of the crankcase and thereby rendering the engine irreparable. Common causes of connecting rod failure are tensile failure from high engine speeds, the impact force when the piston hits a valve (due to a valvetrain problem), rod bearing failure (usually due to a lubrication problem), or incorrect installation of the connecting rod.

How to Calculate Maximum Force Acting on Connecting Rod given Maximum Gas Pressure?

Maximum Force Acting on Connecting Rod given Maximum Gas Pressure calculator uses Force on Connecting Rod = pi*Inner Diameter of Engine Cylinder^2*Maximum Pressure in Engine Cylinder/4 to calculate the Force on Connecting Rod, Maximum force acting on connecting rod given maximum gas pressure is the force that acts on the connecting rod on an IC Engine when the piston is at the top dead center. Force on Connecting Rod is denoted by P_cr symbol.

How to calculate Maximum Force Acting on Connecting Rod given Maximum Gas Pressure using this online calculator? To use this online calculator for Maximum Force Acting on Connecting Rod given Maximum Gas Pressure, enter Inner Diameter of Engine Cylinder (D_i) & Maximum Pressure in Engine Cylinder (p_max) and hit the calculate button. Here is how the Maximum Force Acting on Connecting Rod given Maximum Gas Pressure calculation can be explained with given input values -> 51874.76 = pi*0.07938852^2*4000000/4.

FAQ

What is Maximum Force Acting on Connecting Rod given Maximum Gas Pressure?

Maximum force acting on connecting rod given maximum gas pressure is the force that acts on the connecting rod on an IC Engine when the piston is at the top dead center and is represented as P_cr = pi*D_i^2*p_max/4 or Force on Connecting Rod = pi*Inner Diameter of Engine Cylinder^2*Maximum Pressure in Engine Cylinder/4. Inner Diameter of Engine Cylinder is the diameter of the interior or the inside surface of an engine cylinder & Maximum Pressure in Engine Cylinder is the maximum amount of pressure that is acting inside or is present inside the cylinder.

How to calculate Maximum Force Acting on Connecting Rod given Maximum Gas Pressure?

Maximum force acting on connecting rod given maximum gas pressure is the force that acts on the connecting rod on an IC Engine when the piston is at the top dead center is calculated using Force on Connecting Rod = pi*Inner Diameter of Engine Cylinder^2*Maximum Pressure in Engine Cylinder/4. To calculate Maximum Force Acting on Connecting Rod given Maximum Gas Pressure, you need Inner Diameter of Engine Cylinder (D_i) & Maximum Pressure in Engine Cylinder (p_max). With our tool, you need to enter the respective value for Inner Diameter of Engine Cylinder & Maximum Pressure in Engine Cylinder 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 Force on Connecting Rod?

In this formula, Force on Connecting Rod uses Inner Diameter of Engine Cylinder & Maximum Pressure in Engine Cylinder. We can use 1 other way(s) to calculate the same, which is/are as follows -

Force on Connecting Rod = Force on Piston Head/cos(Inclination of Connecting Rod With Line of Stroke)

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