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    Hi, I've been revising my applied unit and I am trying to come up with all the factors that maximise the energy stored in a rotating flywheel.
    Right now I've got the following points:
    -High rotational velocity because KE is proportional to the square of the rotational velocity.
    -Low density - which means smaller mass and greater radius which would lead to smaller centripetal force on the wheel which prevents the wheel being rip apart
    -High tensile strength - again prevents being rip apart

    Please could anyone come up with any more? Also please correct me if I am wrong about any of the points above.
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    Have you done moment of inertia yet?
    The point about density might be developed further, looking at the design of flywheels on the large static engines they uses to use in cotton mills could help, the engineers that designed those had constraints on material use / mass and the top speed of the wheel.
 
 
 
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