FREESHIP (project draft or weight too large/small)

Discussion in 'Software' started by sujeethmonu, Jul 30, 2013.

  1. sujeethmonu
    Joined: Jan 2013
    Posts: 29
    Likes: 0, Points: 1, Legacy Rep: 3
    Location: india

    sujeethmonu Asst Professor(mech dept)

    There is no submersion 10.563, 0.256, 0.330



    The following layer properties are calculated for both sides of the ship:
    +-------------------------+---------+-----------+----------+---------+---------+---------+
    | Layer | Area | Thickness | Weight | COG X | COG Y | COG Z |
    | | m^2 | mm | tonnes | m | m | m |
    +-------------------------+---------+-----------+----------+---------+---------+---------+
    | hull | 74.622 | 200.000 | 2.000 | 6.272 | 0.000 | 0.712 |
    | deck | 48.887 | 200.000 | 2.000 | 5.634 | 0.000 | 1.776 |
    | engine | 13.565 | 200.000 | 0.655 | 0.901 | 0.000 | 1.419 |
    | BT | 15.072 | 50.000 | 0.150 | 2.401 | 0.000 | 1.453 |
    | FS | 7.048 | 50.000 | 0.100 | 12.730 | 0.000 | 1.229 |
    | K | 22.608 | 50.000 | 0.100 | 11.464 | 0.000 | 1.464 |
    | LA | 94.994 | 10.000 | 0.685 | 6.781 | 0.000 | 1.299 |
    +-------------------------+---------+-----------+----------+---------+---------+---------+
    Total 276.80 5.691 5.594 0.000 1.280
    i opened a .fbm file which is available in database. and kept on adding cylinders to hull to understand the hydrodynamic calculations. but when i added 6th cylinder of 685kg it showed an error "project draft or weight too large/small". what does this error mean?
    :(
     
  2. Victor T
    Joined: Feb 2007
    Posts: 127
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    Location: Ukraine

    Victor T Senior Member

    "There is no submersion 10.563, 0.256, 0.330 "- was found leak point with this coordinates. Need make closed underwater volume of hull from keel to deck
     
  3. lewisboats
    Joined: Oct 2002
    Posts: 2,329
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    Location: Iowa

    lewisboats Obsessed Member

    You raised the waterline above the open sheer... the boat sank! Raise your shear or otherwise increase the displacement of the boat and lower the waterline.
     

  4. sujeethmonu
    Joined: Jan 2013
    Posts: 29
    Likes: 0, Points: 1, Legacy Rep: 3
    Location: india

    sujeethmonu Asst Professor(mech dept)

    thank you for the help. the cylinder radius was too large n it was below the hull surface at that point.
    is there any way i can export this .fbm to ansys aqua
     
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