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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. Check FAQs
D=(Gdw4x8PN)13
D - Mean Coil Diameter of Valve Spring?G - Modulus of Rigidity of Valve Spring?dw - Wire Diameter of Valve Spring?x - Maximum Compression in Valve Spring?P - Axial Force on Valve Spring?N - Active Coils in Valve Spring?

Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring Example

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Here is how the Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring equation looks like with Values.

Here is how the Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring equation looks like with Units.

Here is how the Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring equation looks like.

45.8661Edit=(98900Edit5.5Edit434.8Edit8340Edit12Edit)13
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Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring Solution

Follow our step by step solution on how to calculate Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring?

FIRST Step Consider the formula
D=(Gdw4x8PN)13
Next Step Substitute values of Variables
D=(98900N/mm²5.5mm434.8mm8340N12)13
Next Step Convert Units
D=(9.9E+10Pa0.0055m40.0348m8340N12)13
Next Step Prepare to Evaluate
D=(9.9E+100.005540.0348834012)13
Next Step Evaluate
D=0.0458661247364496m
Next Step Convert to Output's Unit
D=45.8661247364496mm
LAST Step Rounding Answer
D=45.8661mm

Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring Formula Elements

Variables
Mean Coil Diameter of Valve Spring
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.
Symbol: D
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Modulus of Rigidity of Valve 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.
Symbol: G
Measurement: StressUnit: N/mm²
Note: Value should be greater than 0.
Wire Diameter of Valve Spring
Wire Diameter of Valve Spring is the diameter of the wire of a valve spring, which constitutes the coils of the spring.
Symbol: dw
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Maximum Compression in Valve Spring
Maximum Compression in Valve Spring is the maximum amount of axial deflection in the valve spring.
Symbol: x
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Axial Force on Valve Spring
Axial Force on Valve Spring is the force acting at the ends of spring trying to compress or expand it in the axial direction.
Symbol: P
Measurement: ForceUnit: N
Note: Value should be greater than 0.
Active Coils in Valve Spring
Active Coils in Valve Spring is the number of coils or turns of a spring that actually contributes to the load-bearing capacity of the valve spring.
Symbol: N
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.

Other Formulas to find Mean Coil Diameter of Valve Spring

​Go Mean Coil Diameter of Engine Valve Spring given Wire Diameter
D=8dw
​Go Diameter of Coil of Engine Valve Spring given Torsional Shear Stress in Wire
D=C(8KPCπfs)
​Go Mean Coil Diameter of Engine Valve Spring given Number of Active turns of Spring
D=(G(dw4)8(N)k)13
​Go Mean Coil Diameter of Engine Valve Spring given Total Turns of Spring
D=(G(dw4)8(((Nt)-2))k)13

Other formulas in Valve Spring category

​Go Diameter of Wire of Engine Valve Spring given Mean Coil Diameter
dw=D8
​Go Diameter of Wire of Engine Valve Spring given Torsional Shear Stress in Wire
dw=8KPCπfs
​Go Diameter of Wire of Engine Valve Spring
dw=8K((Pi+khmax)C)πfs
​Go Spring Index of Engine Valve Spring given Shear Stress, Maximum Force and Wire Diameter
C=πfsdw28KP

How to Evaluate Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring?

Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring evaluator uses Mean Coil Diameter of Valve Spring = ((Modulus of Rigidity of Valve Spring*Wire Diameter of Valve Spring^4*Maximum Compression in Valve Spring)/(8*Axial Force on Valve Spring*Active Coils in Valve Spring))^(1/3) to evaluate the Mean Coil Diameter of Valve Spring, Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring is defined as the average of the outer and inner coil diameters of an engine valve spring. Mean Coil Diameter of Valve Spring is denoted by D symbol.

How to evaluate Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring using this online evaluator? To use this online evaluator for Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring, enter Modulus of Rigidity of Valve Spring (G), Wire Diameter of Valve Spring (dw), Maximum Compression in Valve Spring (x), Axial Force on Valve Spring (P) & Active Coils in Valve Spring (N) and hit the calculate button.

FAQs on Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring

What is the formula to find Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring?
The formula of Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring is expressed as Mean Coil Diameter of Valve Spring = ((Modulus of Rigidity of Valve Spring*Wire Diameter of Valve Spring^4*Maximum Compression in Valve Spring)/(8*Axial Force on Valve Spring*Active Coils in Valve Spring))^(1/3). Here is an example- 45866.12 = ((98900000000*0.0055^4*0.0348)/(8*340*12))^(1/3).
How to calculate Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring?
With Modulus of Rigidity of Valve Spring (G), Wire Diameter of Valve Spring (dw), Maximum Compression in Valve Spring (x), Axial Force on Valve Spring (P) & Active Coils in Valve Spring (N) we can find Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring using the formula - Mean Coil Diameter of Valve Spring = ((Modulus of Rigidity of Valve Spring*Wire Diameter of Valve Spring^4*Maximum Compression in Valve Spring)/(8*Axial Force on Valve Spring*Active Coils in Valve Spring))^(1/3).
What are the other ways to Calculate Mean Coil Diameter of Valve Spring?
Here are the different ways to Calculate Mean Coil Diameter of Valve Spring-
  • Mean Coil Diameter of Valve Spring=8*Wire Diameter of Valve SpringOpenImg
  • Mean Coil Diameter of Valve Spring=Spring Index for 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)))OpenImg
  • Mean Coil Diameter of Valve Spring=((Modulus of Rigidity of Valve Spring*(Wire Diameter of Valve Spring^4))/(8*(Active Coils in Valve Spring)*Stiffness of Valve Spring))^(1/3)OpenImg
Can the Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring be negative?
No, the Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring, measured in Length cannot be negative.
Which unit is used to measure Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring?
Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring is usually measured using the Millimeter[mm] for Length. Meter[mm], Kilometer[mm], Decimeter[mm] are the few other units in which Diameter of Coil of Engine Valve Spring given Maximum Compression in Spring can be measured.
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