Radial Width of Piston Ring Calculator

✖Diameter of Cylinder Bore is the internal surface diameter of an engine cylinder.ⓘ Diameter of Cylinder Bore [D_i]			+10% -10%
✖Allowable Radial Pressure on Piston Ring is the allowed pressure on the inside of the cylinder in the radial direction.ⓘ Allowable Radial Pressure on Piston Ring [p_w]			+10% -10%
✖Permissible Tensile Stress for Ring is a stress that ensures that the stresses developed in a structure due to service loads do not exceed the elastic limit.ⓘ Permissible Tensile Stress for Ring [σ_tp]			+10% -10%

✖Radial Width of Piston Ring is the width of the piston ring in the radial direction.ⓘ Radial Width of Piston Ring [b]

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Radial Width of Piston Ring Solution

STEP 0: Pre-Calculation Summary

Formula Used

Radial Width of Piston Ring = Diameter of Cylinder Bore*sqrt(3*Allowable Radial Pressure on Piston Ring/Permissible Tensile Stress for Ring)
b = D_i*sqrt(3*p_w/σ_tp)
This formula uses 1 Functions, 4 Variables

Functions Used

sqrt - A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number., sqrt(Number)

Variables Used

Radial Width of Piston Ring - (Measured in Meter) - Radial Width of Piston Ring is the width of the piston ring in the radial direction.
Diameter of Cylinder Bore - (Measured in Meter) - Diameter of Cylinder Bore is the internal surface diameter of an engine cylinder.
Allowable Radial Pressure on Piston Ring - (Measured in Pascal) - Allowable Radial Pressure on Piston Ring is the allowed pressure on the inside of the cylinder in the radial direction.
Permissible Tensile Stress for Ring - (Measured in Pascal) - Permissible Tensile Stress for Ring is a stress that ensures that the stresses developed in a structure due to service loads do not exceed the elastic limit.

STEP 1: Convert Input(s) to Base Unit

Diameter of Cylinder Bore: 180 Millimeter --> 0.18 Meter (Check conversion here)
Allowable Radial Pressure on Piston Ring: 0.025 Newton per Square Millimeter --> 25000 Pascal (Check conversion here)
Permissible Tensile Stress for Ring: 85 Newton per Square Millimeter --> 85000000 Pascal (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

b = D_i*sqrt(3*p_w/σ_tp) --> 0.18*sqrt(3*25000/85000000)

Evaluating ... ...

b = 0.00534679673207404

STEP 3: Convert Result to Output's Unit

0.00534679673207404 Meter -->5.34679673207404 Millimeter (Check conversion here)

FINAL ANSWER

5.34679673207404 ≈ 5.346797 Millimeter <-- Radial Width of Piston Ring

(Calculation completed in 00.004 seconds)

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Created by Saurabh Patil

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

Saurabh Patil has created this Calculator and 700+ more calculators!

Verified by Anshika Arya

National Institute Of Technology (NIT), Hamirpur

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< Piston Rings Calculators

Radial Width of Piston Ring

LaTeX Go Radial Width of Piston Ring = Diameter of Cylinder Bore*sqrt(3*Allowable Radial Pressure on Piston Ring/Permissible Tensile Stress for Ring)

Number of Piston Rings

LaTeX Go Number of Piston Rings = Diameter of Cylinder Bore/(10*Minimum Axial Thickness of Piston Ring)

Minimum Axial Thickness of Piston Ring given Cylinder Inner Diameter

LaTeX Go Axial Thickness of Piston Ring = Diameter of Cylinder Bore/(10*Number of Piston Rings)

Minimum Axial Thickness of Piston Ring given Radial Width of Ring

LaTeX Go Axial Thickness of Piston Ring = 0.7*Radial Width of Piston Ring

< Important Formulas of Piston Calculators

Maximum Bending Stress in Piston Pin

LaTeX Go Maximum Bending Stress in Piston Pin = 4*Force Exerted on Piston*Diameter of Cylinder Bore*Outer Diameter of Piston Pin/(pi*(Outer Diameter of Piston Pin^4-Inner Diameter of Piston Pin^4))

Maximum Bending Moment on Piston Pin

LaTeX Go Bending Moment = Force Exerted on Piston*Diameter of Cylinder Bore/8

Length of Piston Pin used in Connecting Rod

LaTeX Go Length of Piston Pin in Connecting Rod = 0.45*Diameter of Cylinder Bore

Inner Diameter of Piston Pin

LaTeX Go Inner Diameter of Piston Pin = 0.6*Outer Diameter of Piston Pin

Radial Width of Piston Ring Formula

LaTeX Go

Radial Width of Piston Ring = Diameter of Cylinder Bore*sqrt(3*Allowable Radial Pressure on Piston Ring/Permissible Tensile Stress for Ring)
b = D_i*sqrt(3*p_w/σ_tp)

Piston Ring

Piston rings are usually made of cast iron and steel. Wear resistance is an important requirement in the materials used for their manufacture. The material should also have a low friction coefficient to enable the rings to slide along the cylinder's surface and should be able to withstand high pressures at various temperatures under limited lubrication conditions. It should not be prone to seizing when rings are moving in contact with a cylinder and should have a high modulus of elasticity (to provide the required specific pressure upon a cylinder's surface), high yield strength, and hardness. Grey modified cast iron meets the above requirements.

How to Calculate Radial Width of Piston Ring?

Radial Width of Piston Ring calculator uses Radial Width of Piston Ring = Diameter of Cylinder Bore*sqrt(3*Allowable Radial Pressure on Piston Ring/Permissible Tensile Stress for Ring) to calculate the Radial Width of Piston Ring, Radial Width of Piston Ring is the thickness of the piston ring along the diameter of the piston ring. Radial Width of Piston Ring is denoted by b symbol.

How to calculate Radial Width of Piston Ring using this online calculator? To use this online calculator for Radial Width of Piston Ring, enter Diameter of Cylinder Bore (D_i), Allowable Radial Pressure on Piston Ring (p_w) & Permissible Tensile Stress for Ring (σ_tp) and hit the calculate button. Here is how the Radial Width of Piston Ring calculation can be explained with given input values -> 5346.797 = 0.18*sqrt(3*25000/85000000).

FAQ

What is Radial Width of Piston Ring?

Radial Width of Piston Ring is the thickness of the piston ring along the diameter of the piston ring and is represented as b = D_i*sqrt(3*p_w/σ_tp) or Radial Width of Piston Ring = Diameter of Cylinder Bore*sqrt(3*Allowable Radial Pressure on Piston Ring/Permissible Tensile Stress for Ring). Diameter of Cylinder Bore is the internal surface diameter of an engine cylinder, Allowable Radial Pressure on Piston Ring is the allowed pressure on the inside of the cylinder in the radial direction & Permissible Tensile Stress for Ring is a stress that ensures that the stresses developed in a structure due to service loads do not exceed the elastic limit.

How to calculate Radial Width of Piston Ring?

Radial Width of Piston Ring is the thickness of the piston ring along the diameter of the piston ring is calculated using Radial Width of Piston Ring = Diameter of Cylinder Bore*sqrt(3*Allowable Radial Pressure on Piston Ring/Permissible Tensile Stress for Ring). To calculate Radial Width of Piston Ring, you need Diameter of Cylinder Bore (D_i), Allowable Radial Pressure on Piston Ring (p_w) & Permissible Tensile Stress for Ring (σ_tp). With our tool, you need to enter the respective value for Diameter of Cylinder Bore, Allowable Radial Pressure on Piston Ring & Permissible Tensile Stress for Ring 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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