Barge Lines Plan

Discussion in 'Software' started by AlexDDSmith, Aug 18, 2014.

  1. AlexDDSmith
    Joined: Aug 2014
    Posts: 3
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    Location: Canada

    AlexDDSmith New Member

    Creating geometry file for GHS using Rhino

    I've created a geometry file for a barge in rhino.

    I used the attach GHS function and added the information about the hull and each tank.

    When I load the geometry file in GHS there doesn't seem to be a problem but when I use the run file shown below I end up with LCF Draft that is undefined, and an equilibrium depth of 48.696 ft and equilibrium heel of 105.45s.

    Not sure what I'm doing wrong or leaving out but any help would be appreciated.

    I've attached the geometry file I've been using and also
    here is the Run file I've been trying:


    CLEAR
    read C:\GHS_Work\PROJECT_FILES\filename.gf2
    REPORT C:\GHS_Work\PROJECT_FILES\Hydrostatics

    TITLE Hydrostatic Data

    UNITS f `Set the units to Feet

    draft 2.0 `Assuming a light ship that has this draft at even trim,
    vcg 2.0 `and this VCG (KG),
    solve weight, lcg `This SOLVE command finds the light ship weight and LCG.

    solve `This SOLVE command finds equilibrium draft, trim and heel.
    status ghs `And this STATUS command produces a status report.


    WATER 1.025 `Place the ship is salt water.

    TRIM 0 `Set the trim to even keel.

    GHS 0.2,0.4,...,7.8



    PRINT REPORT C:\GHS_Work\PROJECT_FILES\Hydrostatics
     
    Last edited: Aug 19, 2014
  2. NavalSArtichoke
    Joined: Oct 2013
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    Location: GulfCoast

    NavalSArtichoke Senior Member

    Not nearly enough information, IMO.

    Do you have any photographs of this barge? These would help someone roughly define the shape.

    Any information, name of the barge, Owner's information, how the barge is used, should be collected. Is this a box barge, single or double raked end, what?
     
  3. AlexDDSmith
    Joined: Aug 2014
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    AlexDDSmith New Member

    The only info I have are the dimensions I've posted below and that the rake begins 2 ft below the deck of the barge and spans 20 ft.

    Attached is the quick rhino model that I made. I have the name of the barge and also have the dimensions of the tanks.
     

    Attached Files:

    • 1032.png
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  4. NavalSArtichoke
    Joined: Oct 2013
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    Location: GulfCoast

    NavalSArtichoke Senior Member

    It is what it is, I guess.

    I'm not sure if there would be longitudinal wing bhds. in the box portion of the hull if this was originally designed as a deck barge.

    In any event, I don't think I have ever come across a raked barge like this which had the long. wing bhds. continue into the rake, as is shown at the top of your picture.

    Good luck with this project!
     
  5. gonzo
    Joined: Aug 2002
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    Location: Milwaukee, WI

    gonzo Senior Member

    You need to either do it yourself of hire someone to survey the barge and take the lines off. Then you can make a file in whatever format is required. Otherwise, you could get the lines from the designer or builder. The information you give is insufficient. This job is something that an experienced NA or engineer should tackle.
     

  6. AlexDDSmith
    Joined: Aug 2014
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    Location: Canada

    AlexDDSmith New Member

    Thanks for the assistance. I've tried a different method and posted my new issue above. Any time taken to look over this is greatly appreciated.
     
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