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Flywheel design

  1. Sep 1, 2009 #1
    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 dont 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.
     
  2. jcsd
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