How is the moment of inertia of gears calculated?

AI Thread Summary
The moment of inertia of gears can be calculated separately for each gear and then combined if they are connected. The relevant equations involve the individual moments of inertia and the parallel axis theorem when applicable. The moment of inertia is crucial for analyzing rotational dynamics and predicting the behavior of gear systems under torque. Understanding how to calculate it helps in designing efficient mechanical systems. Accurate calculations are essential for applications in engineering and physics.
Zheng_
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If two gears are joined to together, how are their moment of inertia calculated? Separately or combined?
 
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Zheng_ said:
If two gears are joined to together, how are their moment of inertia calculated? Separately or combined?
What are your thoughts? What are the Relevant Equations? What is the Moment of Inertial used for?

BTW, is this for schoolwork?
 

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