DELFTship & Seakeeper

Discussion in 'Software' started by Paolo83, Jan 12, 2011.

  1. Paolo83
    Joined: Jan 2011
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    Location: Milano Italy

    Paolo83 Junior Member

    Hello everyone, this is my first post.

    I'm not a marine engineer, but a structural engineer in the marine environment.
    I'm trying to use Orcaflex for dynamic analysis of mooring buoys.
    For modeling of the vessel is required to input the RAOs and QTFs (second order).
    I saw that Seakeeper can model this problem, but obviously requires the geometry of the vessel as input.
    I did not need to have a ship just as it is, but I'm interested in his size and its type (oil tanker). I found DELFTship-free that has a free online database of several ships, including also the oil tanker.
    My problem is how to export the vessel from DELFTship and than import it in Seakeeper.

    I thank everyone, this is a wonderful forum
     
  2. klaas
    Joined: Feb 2009
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    Location: NL

    klaas Junior Member

    Well as you can get Maxsurf, it is more easy to import the hull forms from maxsurf into seakeeper. In Maxsurf several hull forms are available.

    An other way is to export the files from Delftship in to GHS and import this into seakeeper, altough I am not completely shore is seakeeper is able of importing GHS.
     
  3. zeroname
    Joined: Oct 2008
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    zeroname Naval Architect

    In addition to what klass said, Seakeeper only open Maxsurf Msd format file. I dont see any other import option there.

    so, if you have Rhino, First take the model from Delftship to Rhino (as 3d model) then take it in Maxsurf, save the design as *.msd format . and now open in Seakeeper.

    Or if possible take directly the ship model from Delftship to Maxsurf in common readable format then take it to Seakeeper.
     
  4. Paolo83
    Joined: Jan 2011
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    Location: Milano Italy

    Paolo83 Junior Member

    Thanks for your reply!
    It seems to me that just to buy Maxsurf DEFTship for resave files is a waste.
    I will ask the supplier to Seakeeper what kind of files can be imported.

    If you can not switch directly from DELFTship to Seakeeper, where can I find a library of vessel fot Maxsurf? I am only interested in oil tanker.

    Thanks very much for your help!
     
  5. zeroname
    Joined: Oct 2008
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    zeroname Naval Architect

    you can try Maxsurf academic , it allows to work with maximum 3 surface. so if the delftship hull of the ship is made from total 3 surface it will work for you. and maxsurf academic is free from the company website.
     
  6. Paolo83
    Joined: Jan 2011
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    Location: Milano Italy

    Paolo83 Junior Member

    Ok thanks! I do not know there was a version of Maxsurf for students.
    I tried it, but there's only the CAD, while I am interested in Seakeeper.
     
  7. yipster
    Joined: Oct 2002
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    Location: netherlands

    yipster designer

    have you looked at delftload with calculation of hydrostatics in waves ?
    and realise not all old freeship database models can be easyly loaded into delftship
    you may try as zeroname mentioned or draw up a tanker hull in a format you want
    for testing, i may be wrong but think seakeeper was in the trial as well..
     
    1 person likes this.
  8. formsys
    Joined: May 2007
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    Location: Australia

    formsys formsys

    There are a couple of oil tankers designs included with Maxsurf. You can just get the low cost Maxsurf Plus version and that includes these designs which can then be used with the Seakeeper module. Seakeeper works very well for low speed wall sided shapes like a tanker.
     

  9. Paolo83
    Joined: Jan 2011
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    Location: Milano Italy

    Paolo83 Junior Member

    ok!
    I'll think about it, thanks!
     
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