Optimum panel shape/framing

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

  1. idkfa
    Joined: Sep 2005
    Posts: 329
    Likes: 6, Points: 18, Legacy Rep: 79
    Location: Windward islands, Caribbean

    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.
     

    Attached Files:

  2. The Loftsman
    Joined: Jun 2010
    Posts: 91
    Likes: 4, Points: 0, Legacy Rep: 41
    Location: The Loft

    The Loftsman The Loftsman

    Yawn,
    Wots it all about alfie.
     
  3. messabout
    Joined: Jan 2006
    Posts: 3,367
    Likes: 510, Points: 113, Legacy Rep: 1279
    Location: Lakeland Fl USA

    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
    Posts: 329
    Likes: 6, Points: 18, Legacy Rep: 79
    Location: Windward islands, Caribbean

    idkfa Senior Member

    With frames and stringers?

    The thinner the wall, the closer the spacing.
     

    Attached Files:

    • tube.jpg
      tube.jpg
      File size:
      210.9 KB
      Views:
      458
Loading...
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.