Diameter of Wire of Engine Valve Spring given Total Turns of Spring Solution

STEP 0: Pre-Calculation Summary
Formula Used
Wire Diameter of Valve Spring = ((8*Mean Coil Diameter of Valve Spring^3*(Stiffness of Valve Spring*(Total Coils in Valve Spring-2)))/(Modulus of Rigidity of Valve Spring))^(0.25)
dw = ((8*D^3*(k*(Nt-2)))/(G))^(0.25)
This formula uses 5 Variables
Variables Used
Wire Diameter of Valve Spring - (Measured in Meter) - Wire Diameter of Valve Spring is the diameter of the wire of a valve spring, which constitutes the coils of the spring.
Mean Coil Diameter of Valve Spring - (Measured in Meter) - Mean Coil Diameter of Valve Spring is defined as the average of the inner and the outer diameters of the spring of an engine valve.
Stiffness of Valve Spring - (Measured in Newton per Meter) - Stiffness of Valve Spring is a measure of the resistance offered by an elastic spring to deformation, every object in this universe has some stiffness.
Total Coils in Valve Spring - Total Coils in Valve Spring is the total number of coils or turns of spring including the coils at the ends of the spring.
Modulus of Rigidity of Valve Spring - (Measured in Pascal) - Modulus of Rigidity of Valve Spring is the elastic coefficient when a shear force is applied resulting in lateral deformation. It gives us a measure of how rigid a body is.
STEP 1: Convert Input(s) to Base Unit
Mean Coil Diameter of Valve Spring: 46 Millimeter --> 0.046 Meter (Check conversion ​here)
Stiffness of Valve Spring: 9 Newton per Millimeter --> 9000 Newton per Meter (Check conversion ​here)
Total Coils in Valve Spring: 15 --> No Conversion Required
Modulus of Rigidity of Valve Spring: 98900 Newton per Square Millimeter --> 98900000000 Pascal (Check conversion ​here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
dw = ((8*D^3*(k*(Nt-2)))/(G))^(0.25) --> ((8*0.046^3*(9000*(15-2)))/(98900000000))^(0.25)
Evaluating ... ...
dw = 0.00550919650178295
STEP 3: Convert Result to Output's Unit
0.00550919650178295 Meter -->5.50919650178295 Millimeter (Check conversion ​here)
FINAL ANSWER
5.50919650178295 5.509197 Millimeter <-- Wire Diameter of Valve Spring
(Calculation completed in 00.004 seconds)

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

Diameter of Wire of Engine Valve Spring
​ LaTeX ​ Go Wire Diameter of Valve Spring = sqrt((8*Wahl Factor of Valve Spring*((Initial Spring Force on Valve+Stiffness of Valve Spring*Lift of Valve)*Spring Index for Valve Spring))/(pi*Shear Stress in Valve Spring))
Diameter of Wire of Engine Valve Spring given Torsional Shear Stress in Wire
​ LaTeX ​ Go Wire Diameter of Valve Spring = sqrt((8*Wahl Factor of Valve Spring*Axial Force on Valve Spring*Spring Index for Valve Spring)/(pi*Shear Stress in Valve Spring))
Spring Index of Engine Valve Spring given Shear Stress, Maximum Force and Wire Diameter
​ LaTeX ​ Go Spring Index for Valve Spring = (pi*Shear Stress in Valve Spring*Wire Diameter of Valve Spring^2)/(8*Wahl Factor of Valve Spring*Axial Force on Valve Spring)
Diameter of Wire of Engine Valve Spring given Mean Coil Diameter
​ LaTeX ​ Go Wire Diameter of Valve Spring = Mean Coil Diameter of Valve Spring/8

Diameter of Wire of Engine Valve Spring given Total Turns of Spring Formula

​LaTeX ​Go
Wire Diameter of Valve Spring = ((8*Mean Coil Diameter of Valve Spring^3*(Stiffness of Valve Spring*(Total Coils in Valve Spring-2)))/(Modulus of Rigidity of Valve Spring))^(0.25)
dw = ((8*D^3*(k*(Nt-2)))/(G))^(0.25)

What are the stresses in springs?

Under the compressive load, W acting on the spring, a coil of the spring is subjected to two types of stresses – direct shear stress and torsional shear stress due to twisting of the coil.

How to Calculate Diameter of Wire of Engine Valve Spring given Total Turns of Spring?

Diameter of Wire of Engine Valve Spring given Total Turns of Spring calculator uses Wire Diameter of Valve Spring = ((8*Mean Coil Diameter of Valve Spring^3*(Stiffness of Valve Spring*(Total Coils in Valve Spring-2)))/(Modulus of Rigidity of Valve Spring))^(0.25) to calculate the Wire Diameter of Valve Spring, The Diameter of wire of engine valve spring given total turns of spring is the diameter of the wire of the helical spring used in the engine valve actuation. Wire Diameter of Valve Spring is denoted by dw symbol.

How to calculate Diameter of Wire of Engine Valve Spring given Total Turns of Spring using this online calculator? To use this online calculator for Diameter of Wire of Engine Valve Spring given Total Turns of Spring, enter Mean Coil Diameter of Valve Spring (D), Stiffness of Valve Spring (k), Total Coils in Valve Spring (Nt) & Modulus of Rigidity of Valve Spring (G) and hit the calculate button. Here is how the Diameter of Wire of Engine Valve Spring given Total Turns of Spring calculation can be explained with given input values -> 5509.197 = ((8*0.046^3*(9000*(15-2)))/(98900000000))^(0.25).

FAQ

What is Diameter of Wire of Engine Valve Spring given Total Turns of Spring?
The Diameter of wire of engine valve spring given total turns of spring is the diameter of the wire of the helical spring used in the engine valve actuation and is represented as dw = ((8*D^3*(k*(Nt-2)))/(G))^(0.25) or Wire Diameter of Valve Spring = ((8*Mean Coil Diameter of Valve Spring^3*(Stiffness of Valve Spring*(Total Coils in Valve Spring-2)))/(Modulus of Rigidity of Valve Spring))^(0.25). Mean Coil Diameter of Valve Spring is defined as the average of the inner and the outer diameters of the spring of an engine valve, Stiffness of Valve Spring is a measure of the resistance offered by an elastic spring to deformation, every object in this universe has some stiffness, Total Coils in Valve Spring is the total number of coils or turns of spring including the coils at the ends of the spring & Modulus of Rigidity of Valve Spring is the elastic coefficient when a shear force is applied resulting in lateral deformation. It gives us a measure of how rigid a body is.
How to calculate Diameter of Wire of Engine Valve Spring given Total Turns of Spring?
The Diameter of wire of engine valve spring given total turns of spring is the diameter of the wire of the helical spring used in the engine valve actuation is calculated using Wire Diameter of Valve Spring = ((8*Mean Coil Diameter of Valve Spring^3*(Stiffness of Valve Spring*(Total Coils in Valve Spring-2)))/(Modulus of Rigidity of Valve Spring))^(0.25). To calculate Diameter of Wire of Engine Valve Spring given Total Turns of Spring, you need Mean Coil Diameter of Valve Spring (D), Stiffness of Valve Spring (k), Total Coils in Valve Spring (Nt) & Modulus of Rigidity of Valve Spring (G). With our tool, you need to enter the respective value for Mean Coil Diameter of Valve Spring, Stiffness of Valve Spring, Total Coils in Valve Spring & Modulus of Rigidity of Valve Spring 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 Wire Diameter of Valve Spring?
In this formula, Wire Diameter of Valve Spring uses Mean Coil Diameter of Valve Spring, Stiffness of Valve Spring, Total Coils in Valve Spring & Modulus of Rigidity of Valve Spring. We can use 3 other way(s) to calculate the same, which is/are as follows -
  • Wire Diameter of Valve Spring = Mean Coil Diameter of Valve Spring/8
  • Wire Diameter of Valve Spring = sqrt((8*Wahl Factor of Valve Spring*Axial Force on Valve Spring*Spring Index for Valve Spring)/(pi*Shear Stress in Valve Spring))
  • Wire Diameter of Valve Spring = sqrt((8*Wahl Factor of Valve Spring*((Initial Spring Force on Valve+Stiffness of Valve Spring*Lift of Valve)*Spring Index for Valve Spring))/(pi*Shear Stress in Valve Spring))
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