Plan Type 095/096 Nuclear Submarine Thread

Discussion in 'Navy' started by Hendrik_2000, Nov 27, 2017.

  1. Brumby
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    Brumby Major

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    Do you have a source for your equation? I am having a hard time understanding it and relating it to dive depths.
     
  2. ougoah
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    ougoah Senior Member
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    I'm going to guess these look like buoyancy calculations based off arbitrarily uniform volumes for displaced water with rough sub sizes. Don't think this is how diving depth on subs work though.
     
  3. Anlsvrthng
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    Anlsvrthng Senior Member
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    https://www.efunda.com/formulae/solid_mechanics/mat_mechanics/pressure_vessel.cfm

    Google keywords : pressure vessel equation.

    Pressure multiplied with radius , divided with max allowed material stress yield the wall thickness.

    I just realised that the equation require radius, not diameter : )

    Anyway, it means that if there is a vessel certified for a diving deep and a diameter , doubling any value will double the pressure vessel mass, and doubling both parameter quadruple the vessel mass.

    Of course the fact it has negative pressure means the vessel won't flex out itself to the correct radius, but any manufacturing imperfections can collapse the structure ,depending on the level of error .
     
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