Number of Arms of Pulley given Bending Moment on Arm Solution

STEP 0: Pre-Calculation Summary
Formula Used
Number of Arms in Pulley = 2*Torque Transmitted by Pulley/Bending Moment in Pulley's Arm
Npu = 2*Mt/Mb
This formula uses 3 Variables
Variables Used
Number of Arms in Pulley - Number of Arms in Pulley is the total number of central arms of a pulley.
Torque Transmitted by Pulley - (Measured in Newton Meter) - Torque Transmitted by Pulley is the amount of torque transmitted by the pulley.
Bending Moment in Pulley's Arm - (Measured in Newton Meter) - Bending Moment in Pulley's Arm is the reaction induced in the arms of the pulley when an external force or moment is applied to the arm, causing the arm to bend.
STEP 1: Convert Input(s) to Base Unit
Torque Transmitted by Pulley: 75000 Newton Millimeter --> 75 Newton Meter (Check conversion ​here)
Bending Moment in Pulley's Arm: 34500 Newton Millimeter --> 34.5 Newton Meter (Check conversion ​here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Npu = 2*Mt/Mb --> 2*75/34.5
Evaluating ... ...
Npu = 4.34782608695652
STEP 3: Convert Result to Output's Unit
4.34782608695652 --> No Conversion Required
FINAL ANSWER
4.34782608695652 4.347826 <-- Number of Arms in Pulley
(Calculation completed in 00.004 seconds)

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Osmania University (OU), Hyderabad
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Arms of Cast Iron Pulley Calculators

Tangential Force at End of Each Arm of Pulley given Torque Transmitted by Pulley
​ LaTeX ​ Go Tangential Force at End of Each Pulley Arm = Torque Transmitted by Pulley/(Radius of Rim of Pulley*(Number of Arms in Pulley/2))
Radius of Rim of Pulley given Torque Transmitted by Pulley
​ LaTeX ​ Go Radius of Rim of Pulley = Torque Transmitted by Pulley/(Tangential Force at End of Each Pulley Arm*(Number of Arms in Pulley/2))
Number of Arms of Pulley given Torque Transmitted by Pulley
​ LaTeX ​ Go Number of Arms in Pulley = 2*Torque Transmitted by Pulley/(Tangential Force at End of Each Pulley Arm*Radius of Rim of Pulley)
Torque Transmitted by Pulley
​ LaTeX ​ Go Torque Transmitted by Pulley = Tangential Force at End of Each Pulley Arm*Radius of Rim of Pulley*(Number of Arms in Pulley/2)

Number of Arms of Pulley given Bending Moment on Arm Formula

​Go
Number of Arms in Pulley = 2*Torque Transmitted by Pulley/Bending Moment in Pulley's Arm
Npu = 2*Mt/Mb

Define Bending Moment?

In solid mechanics, a bending moment is the reaction induced in a structural element when an external force or moment is applied to the element, causing the element to bend. The most common or simplest structural element subjected to bending moments is the beam.

How to Calculate Number of Arms of Pulley given Bending Moment on Arm?

Number of Arms of Pulley given Bending Moment on Arm calculator uses Number of Arms in Pulley = 2*Torque Transmitted by Pulley/Bending Moment in Pulley's Arm to calculate the Number of Arms in Pulley, Number of Arms of Pulley given Bending Moment on Arm formula is defined as the number of arms of the pulley that are used for torque transmission. Number of Arms in Pulley is denoted by Npu symbol.

How to calculate Number of Arms of Pulley given Bending Moment on Arm using this online calculator? To use this online calculator for Number of Arms of Pulley given Bending Moment on Arm, enter Torque Transmitted by Pulley (Mt) & Bending Moment in Pulley's Arm (Mb) and hit the calculate button. Here is how the Number of Arms of Pulley given Bending Moment on Arm calculation can be explained with given input values -> 4.347826 = 2*75/34.5.

FAQ

What is Number of Arms of Pulley given Bending Moment on Arm?
Number of Arms of Pulley given Bending Moment on Arm formula is defined as the number of arms of the pulley that are used for torque transmission and is represented as Npu = 2*Mt/Mb or Number of Arms in Pulley = 2*Torque Transmitted by Pulley/Bending Moment in Pulley's Arm. Torque Transmitted by Pulley is the amount of torque transmitted by the pulley & Bending Moment in Pulley's Arm is the reaction induced in the arms of the pulley when an external force or moment is applied to the arm, causing the arm to bend.
How to calculate Number of Arms of Pulley given Bending Moment on Arm?
Number of Arms of Pulley given Bending Moment on Arm formula is defined as the number of arms of the pulley that are used for torque transmission is calculated using Number of Arms in Pulley = 2*Torque Transmitted by Pulley/Bending Moment in Pulley's Arm. To calculate Number of Arms of Pulley given Bending Moment on Arm, you need Torque Transmitted by Pulley (Mt) & Bending Moment in Pulley's Arm (Mb). With our tool, you need to enter the respective value for Torque Transmitted by Pulley & Bending Moment in Pulley's Arm 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 Number of Arms in Pulley?
In this formula, Number of Arms in Pulley uses Torque Transmitted by Pulley & Bending Moment in Pulley's Arm. We can use 2 other way(s) to calculate the same, which is/are as follows -
  • Number of Arms in Pulley = 2*Torque Transmitted by Pulley/(Tangential Force at End of Each Pulley Arm*Radius of Rim of Pulley)
  • Number of Arms in Pulley = 16*Torque Transmitted by Pulley/(pi*Bending stress in pulley's arm*Minor Axis of Pulley Arm^3)
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