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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. Check FAQs
Mbr=((((Pr(b+c1))-(c1(R1v+R'1v)))2)+(((Pt(b+c1))-(c1(R1h+R'1h)))2))
Mbr - Total Bending Moment in Crankshaft Under Flywheel?Pr - Radial Force at Crank Pin?b - Overhang Distance of Piston Force From Bearing1?c1 - Side Crankshaft Bearing1 Gap From Flywheel?R1v - Vertical Reaction at Bearing 1 Due to Radial Force?R'1v - Vertical Reaction at Bearing 1 Due to Flywheel?Pt - Tangential Force at Crank Pin?R1h - Horizontal Force at Bearing1 By Tangential Force?R'1h - Horizontal Reaction at Bearing 1 Due to Belt?

Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions Example

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Here is how the Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions equation looks like with Values.

Here is how the Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions equation looks like with Units.

Here is how the Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions equation looks like.

100560.0477Edit=((((3118.1Edit(300Edit+205Edit))-(205Edit(5100Edit+2300Edit)))2)+(((3613.665Edit(300Edit+205Edit))-(205Edit(6000Edit+2500Edit)))2))

Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions Solution

Follow our step by step solution on how to calculate Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions?

FIRST Step Consider the formula
Mbr=((((Pr(b+c1))-(c1(R1v+R'1v)))2)+(((Pt(b+c1))-(c1(R1h+R'1h)))2))
Next Step Substitute values of Variables
Mbr=((((3118.1N(300mm+205mm))-(205mm(5100N+2300N)))2)+(((3613.665N(300mm+205mm))-(205mm(6000N+2500N)))2))
Next Step Convert Units
Mbr=((((3118.1N(0.3m+0.205m))-(0.205m(5100N+2300N)))2)+(((3613.665N(0.3m+0.205m))-(0.205m(6000N+2500N)))2))
Next Step Prepare to Evaluate
Mbr=((((3118.1(0.3+0.205))-(0.205(5100+2300)))2)+(((3613.665(0.3+0.205))-(0.205(6000+2500)))2))
Next Step Evaluate
Mbr=100.560047737313N*m
Next Step Convert to Output's Unit
Mbr=100560.047737313N*mm
LAST Step Rounding Answer
Mbr=100560.0477N*mm

Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions Formula Elements

Variables
Functions
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*mm
Note: Value should be greater than 0.
Radial Force at Crank Pin
Radial Force at Crank Pin is the component of thrust force on connecting rod acting at the crankpin in the direction radially to the connecting rod.
Symbol: Pr
Measurement: ForceUnit: N
Note: Value should be greater than 0.
Overhang Distance of Piston Force From Bearing1
Overhang Distance of Piston Force From Bearing1 is the distance between the 1st bearing and the line of action of piston force onto the crank pin, useful in load calculation on side crankshaft.
Symbol: b
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Side Crankshaft Bearing1 Gap From Flywheel
Side Crankshaft Bearing1 Gap From Flywheel is the distance of 1st bearing of side crankshaft from the line of application of flywheel weight or from the flywheel center.
Symbol: c1
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Vertical Reaction at Bearing 1 Due to Radial Force
Vertical Reaction at Bearing 1 Due to Radial Force is the vertical reaction force on the 1st bearing of the crankshaft because of the radial component of thrust force acting on connecting rod.
Symbol: R1v
Measurement: ForceUnit: N
Note: Value should be greater than 0.
Vertical Reaction at Bearing 1 Due to Flywheel
Vertical Reaction at Bearing 1 due to Flywheel Weight is the vertical reaction force acting on the 1st bearing of the crankshaft because of the weight of the flywheel.
Symbol: R'1v
Measurement: ForceUnit: N
Note: Value should be greater than 0.
Tangential Force at Crank Pin
Tangential Force at Crank Pin is the component of thrust force on connecting rod acting at the crankpin in the direction tangential to the connecting rod.
Symbol: Pt
Measurement: ForceUnit: N
Note: Value should be greater than 0.
Horizontal Force at Bearing1 By Tangential Force
Horizontal Force at Bearing1 By Tangential Force is the horizontal reaction force on the 1st bearing of crankshaft because of the tangential component of thrust force acting on connecting rod.
Symbol: R1h
Measurement: ForceUnit: N
Note: Value should be greater than 0.
Horizontal Reaction at Bearing 1 Due to Belt
Horizontal Reaction at Bearing 1 Due to Belt Tension is the horizontal reaction force acting on the 1st bearing of the crankshaft because of the belt tensions.
Symbol: R'1h
Measurement: ForceUnit: N
Note: Value should be greater than 0.
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.
Syntax: sqrt(Number)

Other Formulas to find Total Bending Moment in Crankshaft Under Flywheel

​Go Resultant Bending moment at side crankshaft below flywheel at max torque given moments
Mbr=Mbv2+Mbh2

Other formulas in Design of Shaft Under Flywheel at Angle of Maximum Torque category

​Go Vertical bending moment at central plane of side crankshaft below flywheel at max torque
Mbv=(Pr(b+c1))-(c1(R1v+R'1v))
​Go Horizontal Bending Moment at Central Plane of Side Crankshaft below Flywheel at max Torque
Mbh=(Pt(b+c1))-(c1(R1h+R'1h))

How to Evaluate Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions?

Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions evaluator uses Total Bending Moment in Crankshaft Under Flywheel = (sqrt((((Radial Force at Crank Pin*(Overhang Distance of Piston Force From Bearing1+Side Crankshaft Bearing1 Gap From Flywheel))-(Side Crankshaft Bearing1 Gap From Flywheel*(Vertical Reaction at Bearing 1 Due to Radial Force+Vertical Reaction at Bearing 1 Due to Flywheel)))^2)+(((Tangential Force at Crank Pin*(Overhang Distance of Piston Force From Bearing1+Side Crankshaft Bearing1 Gap From Flywheel))-(Side Crankshaft Bearing1 Gap From Flywheel*(Horizontal Force at Bearing1 By Tangential Force+Horizontal Reaction at Bearing 1 Due to Belt)))^2))) to evaluate the Total Bending Moment in Crankshaft Under Flywheel, Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions is the total amount of bending moment in the part of the side crankshaft under the flywheel, resultant of the bending moments in the horizontal and vertical plane, designed for when the crank is at the maximum torque position and subjected to maximum torsional moment. Total Bending Moment in Crankshaft Under Flywheel is denoted by Mbr symbol.

How to evaluate Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions using this online evaluator? To use this online evaluator for Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions, enter Radial Force at Crank Pin (Pr), Overhang Distance of Piston Force From Bearing1 (b), Side Crankshaft Bearing1 Gap From Flywheel (c1), Vertical Reaction at Bearing 1 Due to Radial Force (R1v), Vertical Reaction at Bearing 1 Due to Flywheel (R'1v), Tangential Force at Crank Pin (Pt), Horizontal Force at Bearing1 By Tangential Force (R1h) & Horizontal Reaction at Bearing 1 Due to Belt (R'1h) and hit the calculate button.

FAQs on Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions

What is the formula to find Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions?
The formula of Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions is expressed as Total Bending Moment in Crankshaft Under Flywheel = (sqrt((((Radial Force at Crank Pin*(Overhang Distance of Piston Force From Bearing1+Side Crankshaft Bearing1 Gap From Flywheel))-(Side Crankshaft Bearing1 Gap From Flywheel*(Vertical Reaction at Bearing 1 Due to Radial Force+Vertical Reaction at Bearing 1 Due to Flywheel)))^2)+(((Tangential Force at Crank Pin*(Overhang Distance of Piston Force From Bearing1+Side Crankshaft Bearing1 Gap From Flywheel))-(Side Crankshaft Bearing1 Gap From Flywheel*(Horizontal Force at Bearing1 By Tangential Force+Horizontal Reaction at Bearing 1 Due to Belt)))^2))). Here is an example- 9.3E+9 = (sqrt((((3118.1*(0.3+0.205))-(0.205*(5100+2300)))^2)+(((3613.665*(0.3+0.205))-(0.205*(6000+2500)))^2))).
How to calculate Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions?
With Radial Force at Crank Pin (Pr), Overhang Distance of Piston Force From Bearing1 (b), Side Crankshaft Bearing1 Gap From Flywheel (c1), Vertical Reaction at Bearing 1 Due to Radial Force (R1v), Vertical Reaction at Bearing 1 Due to Flywheel (R'1v), Tangential Force at Crank Pin (Pt), Horizontal Force at Bearing1 By Tangential Force (R1h) & Horizontal Reaction at Bearing 1 Due to Belt (R'1h) we can find Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions using the formula - Total Bending Moment in Crankshaft Under Flywheel = (sqrt((((Radial Force at Crank Pin*(Overhang Distance of Piston Force From Bearing1+Side Crankshaft Bearing1 Gap From Flywheel))-(Side Crankshaft Bearing1 Gap From Flywheel*(Vertical Reaction at Bearing 1 Due to Radial Force+Vertical Reaction at Bearing 1 Due to Flywheel)))^2)+(((Tangential Force at Crank Pin*(Overhang Distance of Piston Force From Bearing1+Side Crankshaft Bearing1 Gap From Flywheel))-(Side Crankshaft Bearing1 Gap From Flywheel*(Horizontal Force at Bearing1 By Tangential Force+Horizontal Reaction at Bearing 1 Due to Belt)))^2))). This formula also uses Square Root (sqrt) function(s).
What are the other ways to Calculate Total Bending Moment in Crankshaft Under Flywheel?
Here are the different ways to Calculate Total Bending Moment in Crankshaft Under Flywheel-
  • Total Bending Moment in Crankshaft Under Flywheel=sqrt(Vertical Bending Moment in Shaft Under Flywheel^2+Horizontal Bending Moment in Shaft Under Flywheel^2)OpenImg
Can the Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions be negative?
No, the Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions, measured in Torque cannot be negative.
Which unit is used to measure Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions?
Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions is usually measured using the Newton Millimeter[N*mm] for Torque. Newton Meter[N*mm], Newton Centimeter[N*mm], Kilonewton Meter[N*mm] are the few other units in which Resultant Bending moment at side crankshaft below flywheel at max torque given bearing reactions can be measured.
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