Diameter of part of centre crankshaft under flywheel at TDC position Formula

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Diameter of Shaft under Flywheel is the diameter, of the part of the crankshaft under the flywheel, the distance across the shaft that passes through the center of the shaft is 2R (twice the radius). Check FAQs
ds=(32Mbrπσbf)13
ds - Diameter of Shaft under Flywheel?Mbr - Total Bending Moment in Crankshaft under Flywheel?σbf - Bending Stress in Shaft Under Flywheel?π - Archimedes' constant?

Diameter of part of centre crankshaft under flywheel at TDC position Example

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Here is how the Diameter of part of centre crankshaft under flywheel at TDC position equation looks like with Values.

Here is how the Diameter of part of centre crankshaft under flywheel at TDC position equation looks like with Units.

Here is how the Diameter of part of centre crankshaft under flywheel at TDC position equation looks like.

31.7395Edit=(32100.45Edit3.141632Edit)13
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Diameter of part of centre crankshaft under flywheel at TDC position Solution

Follow our step by step solution on how to calculate Diameter of part of centre crankshaft under flywheel at TDC position?

FIRST Step Consider the formula
ds=(32Mbrπσbf)13
Next Step Substitute values of Variables
ds=(32100.45N*mπ32N/mm²)13
Next Step Substitute values of Constants
ds=(32100.45N*m3.141632N/mm²)13
Next Step Convert Units
ds=(32100.45N*m3.14163.2E+7Pa)13
Next Step Prepare to Evaluate
ds=(32100.453.14163.2E+7)13
Next Step Evaluate
ds=0.0317394957516718m
Next Step Convert to Output's Unit
ds=31.7394957516718mm
LAST Step Rounding Answer
ds=31.7395mm

Diameter of part of centre crankshaft under flywheel at TDC position Formula Elements

Variables
Constants
Diameter of Shaft under Flywheel
Diameter of Shaft under Flywheel is the diameter, of the part of the crankshaft under the flywheel, the distance across the shaft that passes through the center of the shaft is 2R (twice the radius).
Symbol: ds
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Total Bending Moment in Crankshaft under Flywheel
Total Bending Moment in Crankshaft under Flywheel is the total amount of bending moment in the part of the crankshaft under the flywheel, due to bending moments in the horizontal and vertical plane.
Symbol: Mbr
Measurement: TorqueUnit: N*m
Note: Value should be greater than 0.
Bending Stress in Shaft Under Flywheel
Bending Stress in Shaft Under Flywheel is the bending stress (tends to bend the shaft) in the part of the crankshaft under the flywheel.
Symbol: σbf
Measurement: StressUnit: N/mm²
Note: Value should be greater than 0.
Archimedes' constant
Archimedes' constant is a mathematical constant that represents the ratio of the circumference of a circle to its diameter.
Symbol: π
Value: 3.14159265358979323846264338327950288

Other formulas in Design of Shaft Under Flywheel at Top Dead Centre Position category

​Go Bending Moment in horizantal plane of centre crankshaft below flywheel at TDC due to belt tension
Mb=Rh3c2
​Go Bending Moment in vertical plane of centre crankshaft below flywheel at TDC due to flywheel weight
Mb=Rv3c2
​Go Resultant Bending Moment in centre crankshaft at TDC position below flywheel
Mbr=(Rv3c2)2+(Rh3c2)2
​Go Resultant Bending Moment in centre crankshaft at TDC position below flywheel given shaft diameter
Mbr=πds3σbf32

How to Evaluate Diameter of part of centre crankshaft under flywheel at TDC position?

Diameter of part of centre crankshaft under flywheel at TDC position evaluator uses Diameter of Shaft under Flywheel = ((32*Total Bending Moment in Crankshaft under Flywheel)/(pi*Bending Stress in Shaft Under Flywheel))^(1/3) to evaluate the Diameter of Shaft under Flywheel, Diameter of part of centre crankshaft under flywheel at TDC position is the diameter of the part of the crankshaft under the flywheel, where the crankshaft is designed for when the crank is at the top dead center position and subjected to maximum bending moment and no torsional moment. Diameter of Shaft under Flywheel is denoted by ds symbol.

How to evaluate Diameter of part of centre crankshaft under flywheel at TDC position using this online evaluator? To use this online evaluator for Diameter of part of centre crankshaft under flywheel at TDC position, enter Total Bending Moment in Crankshaft under Flywheel (Mbr) & Bending Stress in Shaft Under Flywheel bf) and hit the calculate button.

FAQs on Diameter of part of centre crankshaft under flywheel at TDC position

What is the formula to find Diameter of part of centre crankshaft under flywheel at TDC position?
The formula of Diameter of part of centre crankshaft under flywheel at TDC position is expressed as Diameter of Shaft under Flywheel = ((32*Total Bending Moment in Crankshaft under Flywheel)/(pi*Bending Stress in Shaft Under Flywheel))^(1/3). Here is an example- 31748.97 = ((32*100.45)/(pi*32000000))^(1/3).
How to calculate Diameter of part of centre crankshaft under flywheel at TDC position?
With Total Bending Moment in Crankshaft under Flywheel (Mbr) & Bending Stress in Shaft Under Flywheel bf) we can find Diameter of part of centre crankshaft under flywheel at TDC position using the formula - Diameter of Shaft under Flywheel = ((32*Total Bending Moment in Crankshaft under Flywheel)/(pi*Bending Stress in Shaft Under Flywheel))^(1/3). This formula also uses Archimedes' constant .
Can the Diameter of part of centre crankshaft under flywheel at TDC position be negative?
No, the Diameter of part of centre crankshaft under flywheel at TDC position, measured in Length cannot be negative.
Which unit is used to measure Diameter of part of centre crankshaft under flywheel at TDC position?
Diameter of part of centre crankshaft under flywheel at TDC position is usually measured using the Millimeter[mm] for Length. Meter[mm], Kilometer[mm], Decimeter[mm] are the few other units in which Diameter of part of centre crankshaft under flywheel at TDC position can be measured.
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