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Homework Help: Producing artificial gravity

  1. Jan 4, 2004 #1
    I'm a Junior, and I am participating in a competition. A team I am on annually joins in the ISSD competition, or International Space Settlement Design competition, which is sponsored by NASA engineers. Having participated since my Freshman year, I am currently working on the structural engineering of our proposed station.

    However, I am stuck in a rut. My section deals with the production of gravity on the station. Last year, I managed to utilize an equation, which this year seems to work as effectively as a wet noodle for a weapon.

    So, I was wondering if anyone can assist me in finding a viable equation for calculating artificial gravity production, or in translating my older equation, which I sadly forgot to fully detail.

    Here is the closest translation of the equation from last year:
    N= 1/2pi * square root of a/s

    Where N=rotational speed(rotations per second/minute)
    a=gravity produced(m/s/s)
    s=distance from center of rotation(m)

    The arrangement of the figures is what confuses me, along with units to utilize, although I'm fairly sure the posted units are correct. I can't find any source for this equation online. I remember that last year this equation gave me a lot of grief before I got it working. If there is a better equation, I'm more than willing to try it.
  2. jcsd
  3. Jan 4, 2004 #2

    Doc Al

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    Staff: Mentor

    Your equation is equivalent to that for centripetal acceleration for a rotating system:

    [tex]a = \frac{v^2}{r}[/tex]

    Where a is the acceleration, v is the speed, r is the distance from the center. You can relate speed (v) to rotational frequency (f) by: v=2π r f.

    Hope this helps a bit.
  4. Jan 4, 2004 #3
    Thank you. I'll have to slog my way through the rest of these problems, and hope I don't come out with ridiculously large numbers.
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