Calculating Torque & Revs on 20kg Flywheel at 800 RPM in 40 secs

Thread starter ME_mike
Start date Jun 16, 2010
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Torque

AI Thread Summary

To calculate the torque required to accelerate a 20kg flywheel with a radius of gyration of 95mm from rest to 800 RPM in 40 seconds, one must first determine the moment of inertia (I) and the angular acceleration (α). The moment of inertia can be calculated using the formula I = m * k², where m is the mass and k is the radius of gyration. The angular acceleration is found by converting the final RPM to radians per second and dividing by the time taken. The torque can then be calculated using the formula torque = I * α. The total number of revolutions made during the acceleration can also be derived from the angular displacement during this time.

Jun 16, 2010

ME_mike

a flywheel has a mass of 20kg and radius of gyration 95mm
what torque would be needed to accelerate it from rest to 800rev/min in 40seconds??
how many revelutions would it make during its process??

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Jun 16, 2010

xxChrisxx

This can be found pretty easily on google, it also sounds like a textbook question.

What do you think is invloved in solving this?

Jun 18, 2010

agurvinder

everything is given. what else do you need? Find I & accl.
torque = I.Accl

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