Optimum panel shape/framing

Discussion in 'Sailboats' started by idkfa, Sep 28, 2010.

  1. idkfa
    Joined: Sep 2005
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    idkfa Senior Member

    http://www.boatdesign.net/forums/fi...pvc-foam-core-thickness-6334-3.html#post40022

    "For optimum design, the length should be twice as long or grater than the breadth. This is true whether you are designing with a cored panel or single skin."




    This is the case for a flat square, placing a single frame, dividing the panel into 2 rectangles.

    For a sphere, I suggest it would be 12 pentagons (30 unique sides = 30/5 = 6 discrete pentagons) But more importantly the framing is not weighted in one axis versus the other.

    In the case of a hull (a cylinder) shouldn't the ratio be increased from 2:1 of the flat panel, to a more even one like the sphere, say 3:2? ie. increased panel stiffness of the curve.
     

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  2. The Loftsman
    Joined: Jun 2010
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    The Loftsman The Loftsman

    Yawn,
    Wots it all about alfie.
     
  3. messabout
    Joined: Jan 2006
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    messabout Senior Member

    You are delving into plate design principles here. How do you support the 2 to 1 L/W premise? I'm not arguing, just asking.
     

  4. idkfa
    Joined: Sep 2005
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    Location: Windward islands, Caribbean

    idkfa Senior Member

    With frames and stringers?

    The thinner the wall, the closer the spacing.
     

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