Creating a High-Speed Flywheel: Do's & Don'ts

[osnarf]

Hi, I was wondering if anybody might help be able to help me out. I need to make a flywheel that will rotate at around 20,000 - 30,000 rpm and I really don't want to die so I was wondering if somebody could tell me exactly what I need to take into account.

And is this the correct way to calculate tensile stress on the rim of a flywheel?

(tensile stress [Pa]) = ( density [kg/m^3]) (radius [m])^2 (angular velocity [rad/s])

Also, how much of a safety margin should I leave between the tensile strength and stress?

Thanks! I appreciate your help.

 

[Navin A S]

When calculating the tensile stress on the rim of a flywheel, you should take into consideration the density of the material, the radius of the flywheel, and the angular velocity of the flywheel. As for the safety margin, it is recommended to leave a factor of safety between 1.5 and 3 times the expected maximum load. This will help ensure that the flywheel does not fail due to fatigue or other causes. Additionally, it is also important to consider the rate of acceleration and deceleration when calculating the stresses on the rim, as this can significantly affect the maximum load.